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Murphy CJ, Saavedra JM, Ólafsson D, Kristófersdóttir KH, Arnardóttir ES, Kristjánsdóttir H. The training times of athletes could play a role in clinical sleep problems due to their associations with sleep difficulty scores. Sleep Health 2024; 10:449-454. [PMID: 38834377 DOI: 10.1016/j.sleh.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 02/19/2024] [Accepted: 02/26/2024] [Indexed: 06/06/2024]
Abstract
OBJECTIVES Sleep is a key component of athletic recovery, yet training times could influence the sleep of athletes. The aim of the current study was to compare sleep difficulties in athletes across different training time groups (early morning, daytime, late evening, early morning plus late evening) and to investigate whether training time can predict sleep difficulties. METHODS Athletes from various sports who performed at a national-level (n = 273) answered the Athlete Sleep Screening Questionnaire (ASSQ) along with several other questionnaires related to demographics, exercise training, and mental health. From the ASSQ, a Sleep Difficulty Score (SDS) was calculated. Transformed SDS (tSDS) was compared across different training time categories using multiple one-way ANOVAs. A stepwise regression was then used to predict tSDS from various sleep-related factors. RESULTS SDSs ranged from none (31%), mild (38%), moderate (22%), and severe (9%). However, the one-way ANOVAs revealed training earlier or later vs. training daytime shifted the tSDS in a negative direction, a trend toward increased sleep difficulty. In particular, athletes training in the late evening (>20:00 or >21:00) had a significantly higher tSDS when compared to daytime training (p = .03 and p < .01, respectively). The regression model (p < .001) explained 27% of variance in the tSDS using depression score, age, training time, and chronotype score. CONCLUSION Among a heterogeneous sample of national-level athletes, 31% displayed moderate to severe SDSs regardless of their training time. However, when athletes trained outside daytime hours there was a tendency for the prevalence of sleep difficulties to increase.
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Affiliation(s)
- Conor J Murphy
- Physical Activity, Physical Education, Sport and Health Research Centre (PAPESH), Sports Science Department, School of Social Sciences, Reykjavik University, Reykjavik, Iceland; Reykjavik University Sleep Institute, School of Technology, Reykjavik University, Reykjavik, Iceland.
| | - Jose M Saavedra
- Physical Activity, Physical Education, Sport and Health Research Centre (PAPESH), Sports Science Department, School of Social Sciences, Reykjavik University, Reykjavik, Iceland; Reykjavik University Sleep Institute, School of Technology, Reykjavik University, Reykjavik, Iceland
| | - Daði Ólafsson
- Department of Psychology, Reykjavik University, Reykjavik, Iceland
| | | | - Erna Sif Arnardóttir
- Reykjavik University Sleep Institute, School of Technology, Reykjavik University, Reykjavik, Iceland
| | - Hafrún Kristjánsdóttir
- Physical Activity, Physical Education, Sport and Health Research Centre (PAPESH), Sports Science Department, School of Social Sciences, Reykjavik University, Reykjavik, Iceland
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2
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Trabelsi K, Almarzooqi MA, Aljaloud KS, Ghazzawi HA, Alenezi AF, Salem A, Kerkeni M, Kerkeni M, Chtourou H, Ammar A, Boukhris O, Pandi-Perumal SR, Driller MW, Jahrami H. Adapting the athlete sleep behavior questionnaire (ASBQ) for Arabic-speaking populations: Translation, reliability testing, and validation using classical theory and item response theory. Sleep Med 2024; 119:267-275. [PMID: 38710132 DOI: 10.1016/j.sleep.2024.04.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 04/16/2024] [Accepted: 04/28/2024] [Indexed: 05/08/2024]
Abstract
Sleep is essential for athletes' physical performance as well as their general health, well-being, and quality of life. To assess athletes' sleep behaviors, the Athlete Sleep Behavior Questionnaire (ASBQ) was developed in the English language. However, a validated Arabic-version of the ASBQ is lacking. This study aimed to translate the ASBQ into Arabic (ASBQ-AR) and evaluate its reliability and validity among Arabic-speaking athletes. A total of 458 participants (254 athletes, 202 non-athletes) from four Arabic countries completed the ASBQ-AR and the Insomnia Severity Index (ISI) questionnaires. The psychometric properties of the ASBQ-AR were examined using unidimensional reliability analysis, confirmatory factor analysis (CFA), Item Response Theory (IRT), and convergent validity. The ASBQ-AR had acceptable internal consistency (Cronbach's α = 0.723, McDonald's ω = 0.725) and a factorial structure, confirming its construct validity. CFA demonstrated improved model fit indices after the removal of two potentially misfitting items (items 4 and 13); however, the model's fit to the data remains suboptimal. IRT results indicated that the majority of items demonstrated a good model fit, suggesting effective measurement of the intended construct without significant interference, except for ASBQ-AR 4. Additionally, ASBQ-AR 4 appears to present the highest level of difficulty for respondents. In terms of convergent validity, the mean ASBQ-AR global score was correlated with the mean ISI global score (r = 0.5, p < 0.0001). The ASBQ-AR is a reliable and valid tool for assessing maladaptive sleep practices among Arabic-speaking athletes. Additional refinements to the ASBQ-AR are warranted to optimize its psychometric properties.
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Affiliation(s)
- Khaled Trabelsi
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia; Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, University of Sfax, Sfax 3000, Tunisia.
| | | | - Khalid S Aljaloud
- Department of Exercise Physiology, College of Sport Sciences and Physical Activity, King Saud University, Riyadh, P.O. Box 2454, Riyadh 11451, Saudi Arabia.
| | - Hadeel Ali Ghazzawi
- Nutrition and Food Technology Department, Agriculture School, The University of Jordan, P.O. Box 11942 Amman, Jordan.
| | - Ahmad F Alenezi
- Department of Medicine, McGill University, Montreal, Quebec, Canada; Ministry of Health, Kuwait City, Kuwait.
| | - Atef Salem
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia; Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, University of Sfax, Sfax 3000, Tunisia.
| | - Mohamed Kerkeni
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia; Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, University of Sfax, Sfax 3000, Tunisia.
| | - Manel Kerkeni
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia; Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, University of Sfax, Sfax 3000, Tunisia.
| | - Hamdi Chtourou
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia; Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport, Tunis, Tunisia.
| | - Achraf Ammar
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia; Department of Training and Movement Science, Institute of Sport Science, Johannes Gutenberg-University Mainz, 55122 Mainz, Germany; Research Laboratory, Molecular Bases of Human Pathology, LR19ES13, Faculty of Medicine of Sfax, University of Sfax, Sfax 3000, Tunisia; Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2), UFR STAPS (Faculty of Sport Sciences), UPL, Paris Nanterre University, 92000 Nanterre, France.
| | - Omar Boukhris
- SIESTA Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, VIC 3086, Australia; Sport, Performance, and Nutrition Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, VIC 3086, Australia.
| | - Seithikurippu R Pandi-Perumal
- Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India; Division of Research and Development, Lovely Professional University, Phagwara, Punjab, 144411, India.
| | - Matthew W Driller
- SIESTA Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, VIC 3086, Australia; Sport, Performance, and Nutrition Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, VIC 3086, Australia.
| | - Haitham Jahrami
- Government Hospitals, Manama, Bahrain; Department of Psychiatry, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain.
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Gjertsås K, Moen F, Pettersen SA. Aspects of Elite Female Football Players' Training Loads and Sleep Variations. Sports (Basel) 2024; 12:163. [PMID: 38921857 PMCID: PMC11209026 DOI: 10.3390/sports12060163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/22/2024] [Accepted: 05/28/2024] [Indexed: 06/27/2024] Open
Abstract
The current study investigated the associations between female football players' training loads and their sleep variations. The sample included 21 female elite football players from a Norwegian top-league club with a mean age of 24 years (±2.8). Sleep duration, sleep quality, and training load were monitored every day over 273 consecutive days with a Somnofy sleep monitor based on ultra-wideband (IR-UWB) pulse radar and Doppler technology, and a FIFA-approved STATSports APEX 10 Hz GPS tracking system monitoring players' training loads. A multivariate analysis of variance (MANOVA) was conducted to investigate the relationships between the players' training loads and sleep. It was revealed that very high training loads were associated with reduced time in bed (p = 0.005), total sleep time (p = 0.044)), and rapid eye movement (p < 0.001). The present findings show that the female football players' sleep was disrupted when the training load, based on total distance (TDI), was very high. It appears to be a point where their sleep is somewhat consistent through low, medium, and high training loads, but with disrupted sleep when the training load reaches a very high level. Considering the reduced TIB after a very high training load, there should be suggested strategies to improve their sleep, such as extended TIB, to aid in longer TST and improved recovery.
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Affiliation(s)
- Kine Gjertsås
- Department of Circulation and Medical Imaging, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, 7030 Trondheim, Norway
| | - Frode Moen
- Department of Education and Lifelong Learning, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, 7030 Trondheim, Norway;
| | - Svein Arne Pettersen
- School of Sport Sciences, Faculty of Health Sciences, UiT The Arctic University of Norway, 9010 Tromsø, Norway;
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Costa EDC, Filho CAK, Esteves AM, Guelfi ÉTN, Vuillerme N, Barbieri FA. Sleep "ON", sleep better! Positive effects of levodopa on sleep behaviour in people with Parkinson's disease. J Sleep Res 2024:e14240. [PMID: 38764179 DOI: 10.1111/jsr.14240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 04/21/2024] [Accepted: 05/05/2024] [Indexed: 05/21/2024]
Abstract
People with Parkinson's disease experience reduced sleep quality compared with their peers. Levodopa may have a direct effect on sleep macrostructure or may improve sleep by enhancing nocturnal motor performance. Therefore, it is important to understand the acute effects of withdrawing levodopa on sleep measures in Parkinson's disease. The purpose of this study was to compare the estimated objective and subjective sleep measures of people with Parkinson's disease sleeping under (ON-night) versus without (OFF-night) the effects of the last daily dopaminergic medication before going to bed. A total of 23 people with Parkinson's disease were instructed to wear an actigraphy device for 4 consecutive nights to objectively measure the sleep behaviour. Subjective sleep measure was assessed each morning using a Likert scale. Participants slept for 3 nights on ON-night and 1 night on OFF-night. They were instructed not to take their last dose of levodopa before going to bed in OFF-night. Sleeping in ON- versus OFF-night increased total sleep time (7.8%, p = 0.032) and sleep efficiency (3.7%, p = 0.019), and decreased duration and number of wakes after sleep onset (22.3%, p = 0.050; and 29.2%, p = 0.013, respectively). However, subjective sleep analysis indicated no significant differences between the two conditions. From a clinical point of view, our results suggest that sleeping on ON-night resulted in an improvement in estimated objective sleep measures compared with sleeping on OFF-night. From a methodological point of view, our findings emphasize the importance of relying on objective sleep measurements to accurately assess OFF-night sleep behaviour in people with Parkinson's disease.
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Affiliation(s)
- Elisa de Carvalho Costa
- School of Sciences, Department of Physical Education, Human Movement Research Laboratory (MOVI-LAB), São Paulo State University (UNESP), Bauru, Brazil
| | - Carlos Augusto Kalva Filho
- School of Sciences, Department of Physical Education, Human Movement Research Laboratory (MOVI-LAB), São Paulo State University (UNESP), Bauru, Brazil
| | | | | | - Nicolas Vuillerme
- Université Grenoble Alpes, AGEIS, Grenoble, France
- Institut Universitaire de France, Paris, France
| | - Fabio Augusto Barbieri
- School of Sciences, Department of Physical Education, Human Movement Research Laboratory (MOVI-LAB), São Paulo State University (UNESP), Bauru, Brazil
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Kong Z, Wei X, Shen M, Cheng Y, Feng J. Interval training has more negative effects on sleep in adolescent speed skaters: a randomized cross controlled trial. Front Sports Act Living 2024; 6:1367190. [PMID: 38689870 PMCID: PMC11058656 DOI: 10.3389/fspor.2024.1367190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 03/28/2024] [Indexed: 05/02/2024] Open
Abstract
Objective Sleep is an essential component of athletic performance and recovery. This study aimed to investigate the effects of different types of high-intensity exercise on sleep parameters in adolescent speed skaters. Methods Eighteen male adolescent speed skaters underwent aerobic capacity testing, Wingate testing, and interval training in a randomized crossover design to assess strength output, heart rate, and blood lactate levels during exercise. Sleep quality after each type of exercise was evaluated using the Firstbeat Bodyguard 3 monitor. Results The results showed that Wingate testing and interval training led to decreased sleep duration, increased duration of stress, decreased RMSSD, and increased LF/HF ratio (p < 0.01). Conversely, aerobic capacity testing did not significantly affect sleep (p > 0.05). The impact of interval training on sleep parameters was more significant compared to aerobic capacity testing (p < 0.01) and Wingate testing (p < 0.01). Conclusion High-intensity anaerobic exercise has a profound impact on athletes' sleep, primarily resulting in decreased sleep duration, increased stress duration, decreased RMSSD, and increased LF/HF ratio.
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Affiliation(s)
- Zhenxing Kong
- Key Laboratory of Exercise and Physical Fitness of the Ministry of Education, Beijing Sport University, Beijing, China
| | - Xinhua Wei
- Zhejiang Qiangnao Technology Co., Ltd, Hangzhou, Zhejiang, China
| | - Meng Shen
- Key Laboratory of Exercise and Physical Fitness of the Ministry of Education, Beijing Sport University, Beijing, China
| | - Yue Cheng
- Ice Sports Management Center of Jilin Provincial Sports Bureau, Changchun, Jilin, China
| | - Junpeng Feng
- Key Laboratory of Exercise and Physical Fitness of the Ministry of Education, Beijing Sport University, Beijing, China
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6
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Bretonneau Q, Morales-Artacho A, Pla R, Bosquet L. Effect of the pre-taper level of fatigue on the taper-induced changes in performance in elite swimmers. Front Sports Act Living 2024; 6:1353817. [PMID: 38450281 PMCID: PMC10915210 DOI: 10.3389/fspor.2024.1353817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 01/30/2024] [Indexed: 03/08/2024] Open
Abstract
Introduction In swimming, performance gains after tapering could be influenced by the pre-taper level of fatigue. Moreover, this level of fatigue could be associated with sleep. This study aimed to assess (1) the effect of tapering on performance according to the pre-taper level of fatigue in swimmers and (2) the association between sleep and pre-taper level of fatigue. Methods Physiological, psychological and biomechanical profiles were evaluated in 26 elite swimmers on 2 occasions to estimate the pre-taper level of fatigue: at T0 and T1, scheduled respectively 10 and 3 weeks before the main competition. Sleep quantity and quality were also evaluated at T0 and T1. Race time was officially assessed at T0, T1 and during the main competition. The level of significance was set at p ≤ .05. Results Fourteen swimmers (17 ± 2 years) were allocated to acute fatigue group (AF) and 12 swimmers (18 ± 2 years) to functional overreaching group (F-OR). From T1 to the main competition, performance was improved in AF (+1.80 ± 1.36%), while it was impaired in F-OR (-0.49 ± 1.58%, p < 0.05 vs. AF). Before taper period, total sleep time was lower in F-OR, as compared to AF. Conversely, the fragmentation index was higher in F-OR (p = .06). From wakefulness to sleep, body core temperature decreased in AF but not in F-OR. Discussion Performance gain after tapering was higher in AF swimmers than in overreached. Moreover, pre-taper sleep was poorer in overreached swimmers, which could contribute to their different response to the same training load. This poorer sleep could be linked to a lower regulation of internal temperature.
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Affiliation(s)
- Quentin Bretonneau
- Laboratoire MOVE (UR 20296), Faculté des Sciences du Sport, Université de Poitiers, Poitiers, France
| | - Antonio Morales-Artacho
- Laboratoire Sport, Expertise and Performance (EA 7370), Institut Français du Sport (INSEP), Paris, France
| | - Robin Pla
- Fédération Française de Natation (FFN), Service Optimisation de la Performance, Clichy, France
| | - Laurent Bosquet
- Laboratoire MOVE (UR 20296), Faculté des Sciences du Sport, Université de Poitiers, Poitiers, France
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Andersen TR, Kästner B, Arvig M, Larsen CH, Madsen EE. Monitoring load, wellness, and psychological variables in female and male youth national team football players during international and domestic playing periods. Front Sports Act Living 2023; 5:1197766. [PMID: 38162701 PMCID: PMC10757622 DOI: 10.3389/fspor.2023.1197766] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 11/20/2023] [Indexed: 01/03/2024] Open
Abstract
Aim To study differences in total load exposure, wellness, and psychological variables in youth female (N = 19) and male (N = 20) national team football players during domestic and international playing periods, respectively. Procedures The players filled out questionnaires on well-being, stress, and resilience before and after both playing periods lasting 8 days each. The Hooper index was used to monitor daily wellness levels during both playing periods. The number of training sessions and matches were recorded, and the session rating of perceived exertion was collected. Training load, monotony, and strain were calculated. Daily measurements were used to evaluate in-period changes, and composite scores were used to describe differences between periods. Results The international compared to the domestic playing period was for both groups characterized by more matches played, longer field training session durations, and of fewer gym-based sessions (P < 0.05). The male players increased total exposure time (25%; P < 0.05), monotony (P < 0.001), and strain (P < 0.001), which was not changed in the female players. Well-being decreased (P < 0.05) during the international playing period in male players. Stress levels were higher (P < 0.05) for both genders during the international compared to the domestic playing period. During the international playing period, positive correlations were found between the initial levels of stress, and the change in stress (P = 0.03; r2 = 0.12), and between the changes in total load and changes in well-being (P = 0.02; r2 = 0.12), whereas a negative correlation was found between the changes in wellness and stress (P = 0.03; r2 = 0.14). Conclusion A playing period characterized by increased match focus, longer field training sessions, and fewer gym-based training activities may lead to changes in the physical and mental profiles of youth national team football players. Alterations to load exposure and wellness may influence mental health. Players with high initial stress levels may be subjected to greater changes compared to other players. Sports scientists and medical staff may benefit from initiating structured monitoring systems to track alterations in physical load and mental health in youth national team players.
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Affiliation(s)
- Thomas Rostgaard Andersen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
- Danish Football Association, Brondby, Denmark
| | - Bennet Kästner
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Mathias Arvig
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Carsten Hvid Larsen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
- Danish Football Association, Brondby, Denmark
| | - Esben Elholm Madsen
- Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
- Danish Football Association, Brondby, Denmark
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Greenwalt CE, Angeles E, Vukovich MD, Smith-Ryan AE, Bach CW, Sims ST, Zeleny T, Holmes KE, Presby DM, Schiltz KJ, Dupuit M, Renteria LI, Ormsbee MJ. Pre-sleep feeding, sleep quality, and markers of recovery in division I NCAA female soccer players. J Int Soc Sports Nutr 2023; 20:2236055. [PMID: 37470428 PMCID: PMC10360998 DOI: 10.1080/15502783.2023.2236055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 07/01/2023] [Indexed: 07/21/2023] Open
Abstract
Pre-sleep nutrition habits in elite female athletes have yet to be evaluated. A retrospective analysis was performed with 14 NCAA Division I female soccer players who wore a WHOOP, Inc. band - a wearable device that quantifies recovery by measuring sleep, activity, and heart rate metrics through actigraphy and photoplethysmography, respectively - 24 h a day for an entire competitive season to measure sleep and recovery. Pre-sleep food consumption data were collected via surveys every 3 days. Average pre-sleep nutritional intake (mean ± sd: kcals 330 ± 284; cho 46.2 ± 40.5 g; pro 7.6 ± 7.3 g; fat 12 ± 10.5 g) was recorded. Macronutrients and kcals were grouped into high and low categories based upon the 50th percentile of the mean to compare the impact of a high versus low pre-sleep intake on sleep and recovery variables. Sleep duration (p = 0.10, 0.69, 0.16, 0.17) and sleep disturbances (p = 0.42, 0.65, 0.81, 0.81) were not affected by high versus low kcal, PRO, fat, CHO intake, respectively. Recovery (p = 0.81, 0.06, 0.81, 0.92), RHR (p = 0.84, 0.64, 0.26, 0.66), or HRV (p = 0.84, 0.70, 0.76, 0.93) were also not affected by high versus low kcal, PRO, fat, or CHO consumption, respectively. Consuming a small meal before bed may have no impact on sleep or recovery.
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Affiliation(s)
- Casey E Greenwalt
- Florida State University, Institute of Sports Science and Medicine, Nutrition and Integrative Physiology Department, Tallahassee, FL, USA
| | - Elisa Angeles
- Florida State University, Institute of Sports Science and Medicine, Nutrition and Integrative Physiology Department, Tallahassee, FL, USA
| | - Matthew D Vukovich
- College of Education and Human Sciences, South Dakota State University, Brookings, SD, USA
| | - Abbie E Smith-Ryan
- University of North Carolina at Chapel Hill, Applied Physiology Laboratory, Department of Exercise and Sport Science, Chapel Hill, NC, USA
| | - Chris W Bach
- Department of Athletics, University of Nebraska-Lincoln, Lincoln, NE, USA
| | | | - Tucker Zeleny
- Department of Athletics, University of Nebraska-Lincoln, Lincoln, NE, USA
| | | | - David M Presby
- WHOOP, Inc, Department of Data Science and Research, Boston, MA, USA
| | - Katie J Schiltz
- Florida State University, Institute of Sports Science and Medicine, Nutrition and Integrative Physiology Department, Tallahassee, FL, USA
| | - Marine Dupuit
- Florida State University, Institute of Sports Science and Medicine, Nutrition and Integrative Physiology Department, Tallahassee, FL, USA
- Clermont Auvergne University, Laboratory of the Metabolic Adaptations to Exercise Under Physiological and Pathological Conditions (AME2P), Clermont-Ferrand, France
| | - Liliana I Renteria
- Florida State University, Institute of Sports Science and Medicine, Nutrition and Integrative Physiology Department, Tallahassee, FL, USA
| | - Michael J Ormsbee
- Florida State University, Institute of Sports Science and Medicine, Nutrition and Integrative Physiology Department, Tallahassee, FL, USA
- University of KwaZulu-Natal, School of Health Sciences, Discipline of Biokinetics, Exercise and Leisure Sciences, Durban, South Africa
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Silva JR, Buchheit M, Hader K, Sarmento H, Afonso J. Building Bridges Instead of Putting Up Walls: Connecting the "Teams" to Improve Soccer Players' Support. Sports Med 2023; 53:2309-2320. [PMID: 37480484 PMCID: PMC10687197 DOI: 10.1007/s40279-023-01887-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2023] [Indexed: 07/24/2023]
Abstract
The increase in the economic value of soccer occurred in parallel with an increase in competing demands. Therefore, clubs and federations evolved to greater specialization (e.g., state-of-the-art facilities and high-profile expertise staff) to support players' performance and health. Currently, player preparation is far from exclusively club or national team centered, and the lack of control in each player's environment can be more prevalent than expected. For example, an elite group of professional players faces disruptions in the season club-oriented planification due to involvement in national teams. Moreover, as elite players' financial resources grow, it is common for them to employ specialized personal staff (e.g., strength and conditioning, nutritionist, and sports psychologist) to assist in their preparation, resulting in complex three-fold relationships (i.e., club, player's staff, national team). Although efforts have been made to improve communication with and transition from the club to the national team supervision, this new reality (club-players' staff) may generate serious compound role-related problems and difficulties in monitoring load and training adaptation and having a unified message. Therefore, efforts must be implemented to ensure a more informed management of the players' performance environment, where the existence and impact of these various personal staff are considered to avoid a long-term non-zero sum for all intervening parties. If left unchecked, current professional thinking may collide or overlap, potentially triggering conflict escalation and impairing athletic performance or health, especially if effective communication routes are not adequately established. Moreover, diluted personal responsibility regarding performance may ensue, resulting in decreased productivity from all involved, which may cause more harm than benefits for the player's overall health and performance. This emerging reality calls for developing a joint working framework (i.e., between the player's personalized support team and the clubs' team) and better managing of a player-centered process.
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Affiliation(s)
- João Renato Silva
- Faculty of Sport, Center for Research, Education, Innovation, and Intervention in Sport (CIFI2D), University of Porto, Porto, Portugal.
| | - Martin Buchheit
- HIIT Science, Revelstoke, BC, Canada
- Laboratory of Sport, Expertise and Performance, French National Institute of Sport (INSEP), Paris, France
- Kitman Labs, Performance Research Intelligence Initiative, Dublin, Ireland
- Lille OSC, Lille, France
| | - Karim Hader
- Kitman Labs, Performance Research Intelligence Initiative, Dublin, Ireland
| | - Hugo Sarmento
- Research Unit for Sport and Physical Activity (CIDAF), Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal
| | - José Afonso
- Faculty of Sport, Center for Research, Education, Innovation, and Intervention in Sport (CIFI2D), University of Porto, Porto, Portugal
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Almendros-Ruiz A, Lopez-Moro A, Conde-Pipò J, Santalla A, Requena B, Mariscal-Arcas M. The Effects of Melatonin Supplementation on Professional Football Player Performance: A Systematic Review. Nutrients 2023; 15:4467. [PMID: 37892543 PMCID: PMC10610359 DOI: 10.3390/nu15204467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/07/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Melatonin is a hormone that has shown anti-inflammatory actions, reduced oxidative stress, and has effects on physical performance, so the aim of this study was to review the effects of melatonin supplementation on the performance of professional soccer players. METHODS Critical and systematic review. Data were obtained by performing searches in the following bibliographic databases: Web of Science, MEDLINE (via PubMed), Embase, Cochrane Library, and Scopus. The terms used were "Soccer Athlete", "Melatonin", and "Soccer Performance", using "Humans" as a filter. The search update was in May 2023. RESULTS Having applied the inclusion and exclusion criteria, eight articles were selected out of 59 retrieved references. The dose of melatonin administered in the studies ranged between 5 and 8 mg. The outcomes showed a decrease in oxidative stress, muscle damage, and inflammatory markers in the melatonin-treated group. CONCLUSIONS Exogenously administered melatonin seems to attenuate some of the effects derived from physical exercise, such as oxidative stress, inflammation, and muscle damage, in professional football players, and since it has no potential adverse effects, it could be interesting to apply it in this population. However, the direct effects of melatonin supplementation on physical performance have not been demonstrated, so more research is needed on the intervention period and effective dose and with larger participant populations.
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Affiliation(s)
- Antonio Almendros-Ruiz
- Health Science and Nutrition Research (HSNR-CTS1118), Department of Nutrition and Food Science, School of Pharmacy, University of Granada, 18071 Granada, Spain; (A.A.-R.); (A.L.-M.); (J.C.-P.)
| | - Alejandro Lopez-Moro
- Health Science and Nutrition Research (HSNR-CTS1118), Department of Nutrition and Food Science, School of Pharmacy, University of Granada, 18071 Granada, Spain; (A.A.-R.); (A.L.-M.); (J.C.-P.)
| | - Javier Conde-Pipò
- Health Science and Nutrition Research (HSNR-CTS1118), Department of Nutrition and Food Science, School of Pharmacy, University of Granada, 18071 Granada, Spain; (A.A.-R.); (A.L.-M.); (J.C.-P.)
| | - Alfredo Santalla
- FSI Lab, Football Science Institute, 18100 Granada, Spain; (A.S.); (B.R.)
- Research Group Physical Activity, Health and Sport CTS-948, Pablo de Olavide University, 41013 Sevilla, Spain
| | - Bernardo Requena
- FSI Lab, Football Science Institute, 18100 Granada, Spain; (A.S.); (B.R.)
| | - Miguel Mariscal-Arcas
- Health Science and Nutrition Research (HSNR-CTS1118), Department of Nutrition and Food Science, School of Pharmacy, University of Granada, 18071 Granada, Spain; (A.A.-R.); (A.L.-M.); (J.C.-P.)
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), 18014 Granada, Spain
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11
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You S, Cicchella A. Daytime sleepiness in Chinese professional, semi professional and students soccer players in the Shanghai lockdown. BMC Sports Sci Med Rehabil 2023; 15:119. [PMID: 37740241 PMCID: PMC10517451 DOI: 10.1186/s13102-023-00730-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/11/2023] [Indexed: 09/24/2023]
Abstract
PURPOSE April-May 2021 Shanghai city was under strict lockdown. Soccer players suffered from the restrictions, being unable to train and have a social life. The aim of this study was to compare differences in daytime sleepiness between genders and qualification levels in a cohort university Chinese soccer player under 0 Covid policy restrictions in the urban area of Shanghai. METHODS 491 questionnaires of Epworth Sleepiness Scales (ESS) were compiled online by male and female Soccer Students (SS), Semi-Professional players (SP) and Professional Players (PP) during the ongoing restriction measures post Shanghai lockdown. ANOVA was performed for players levels and gender. RESULTS Significant differences were found between the 3 levels and between males and females. PP showed a very low score in the ESS (5,97) well below the threshold of 8 for daytime sleepiness, while SS and SP showed an ESS score above the threshold. Female showed higher scores in comparison to males. Differences between males and females reflect the confinement conditions in the ESS items, showing more difference in the item of ESS which are related with indoor situations. CONCLUSIONS This study shows the first data on sleepiness in Chinese soccer players of different level of qualification immediately post lockdown condition. Professional male's players sleepiness was lower, than females, SS and SP after the exceptional lockdown measures. The reasons can reside in the more ordered lifestyle of PP in comparison to SS and SP, which mitigated the effects of the lockdown. Our results suggest that measures to improve sleep in females' soccer player should be adopted if these exceptional conditions will happen again.
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Affiliation(s)
- Songhui You
- Tongji University, International College of Football, 1239 Siping Road, Shanghai, P.R. China
| | - Antonio Cicchella
- Tongji University, International College of Football, 1239 Siping Road, Shanghai, P.R. China.
- Department for Quality-of-Life Studies, University of Bologna, Corso d' Augusto 237, Bologna, Rimini, 47921, Italy.
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12
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Moen F, Pettersen SA, Gjertsås K, Vatn M, Ravenhorst M, Kvålsvoll A, Liland KH, Mosleth EF. The effect of bio-electro-magnetic-energy-regulation therapy on sleep duration and sleep quality among elite players in Norwegian women's football. Front Psychol 2023; 14:1230281. [PMID: 37614490 PMCID: PMC10443099 DOI: 10.3389/fpsyg.2023.1230281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 07/24/2023] [Indexed: 08/25/2023] Open
Abstract
The current study investigated if physical loads peak on game days and if Bio-Electro-Magnetic-Energy-Regulation (BEMER) therapy is affecting sleep duration and sleep quality on nights related to game nights among elite players in Norwegian women's elite football. The sample included 21 female football players from an elite top series club with a mean age of ~24 years (± 2.8). Sleep was measured every day over a period of 273 consecutive days with a Somnofy sleep monitor based on ultra-wideband (IR-UWB) pulse radar and Doppler technology. The current study was conducted as a quasi-experiment, where each player was their own control based on a control period that lasted for 3 months, and an experimental period that lasted for 5 months. Accordantly, the time each player spent with BEMER therapy was used as a control variable. Multivariate analyses of variance using FFMANOVA and univariate ANOVA with False Discovery Rate adjusted p-values show that physical performance (total distance, distance per minute, sprint meters >22.5 kmh, accelerations and decelerations) significantly peak on game day compared with ordinary training days and days related to game days. The results also show that sleep quantity and quality are significantly reduced on game night, which indicate disturbed sleep caused by the peak in physical load. Most sleep variables significantly increased in the experiment period, where BEMER therapy was used, compared to the control period before the introduction of BEMER therapy. Further, the analyses show that players who spent BEMER therapy >440 h had the most positive effects on their sleep, and that these effects were significantly compared to the players who used BEMER therapy <440 h. The findings are discussed based on the function of sleep and the different sleep stages have on recovery.
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Affiliation(s)
- Frode Moen
- Department of Education and Lifelong Learning, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Svein Arne Pettersen
- School of Sport Sciences, Faculty of Health Sciences, UiT, The Arctic University of Norway, Tromsø, Norway
| | - Kine Gjertsås
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Marte Vatn
- Department of Sociology and Political Science, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Martijn Ravenhorst
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | | | - Kristian Hovde Liland
- Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway
| | - Ellen F. Mosleth
- Nofima AS - The Norwegian Institute of Food, Fisheries and Aquaculture Research, Ås, Norway
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13
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Cunha LA, Costa JA, Marques EA, Brito J, Lastella M, Figueiredo P. The Impact of Sleep Interventions on Athletic Performance: A Systematic Review. SPORTS MEDICINE - OPEN 2023; 9:58. [PMID: 37462808 DOI: 10.1186/s40798-023-00599-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 06/18/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND Sleep is essential for maximal performance in the athletic population. Despite that, the sport context has many factors that can negatively influence athletes' sleep and subsequent recovery. OBJECTIVES The purpose of this systematic review was to synthesize the most recent literature regarding sleep interventions aimed at improving sleep and subsequent performance in athletes. METHODS The present systematic review was conducted based on the PRISMA guidelines and the PICOS approach. The search was conducted in May 2022 using the electronic database PubMed, SPORTDiscus via EBSCOhost, and Web of Science. Once extracted, studies were included if they met the following criteria: (1) participants were athletes of individual or team sports; (2) implemented an intervention aimed at improving sleep; (3) measured at least one objective performance/recovery outcome; and (4) reported the relationship between sleep and performance. RESULTS The search returned 1584 records. Following the screening, a total of 25 studies met our inclusion criteria. All the included articles were intervention studies published between 2011 and 2021. The included studies implemented various sleep interventions, such as sleep hygiene, naps, sleep extension, light manipulation, cold water immersion, mindfulness, or a combination of two or more strategies. Sleep extension and naps were the most representative and most effective strategies to improve sleep and performance. Mindfulness and light manipulation demonstrated promising results, but more studies are needed to confirm these findings. Sleep hygiene, removing electronic devices at night, and cold water immersion had no effects on sleep and subsequent performance/recovery, but these results are based on a few studies only. CONCLUSION While acknowledging the limited amount of high-quality evidence reviewed, it appears that increasing sleep duration at night or through napping was the most effective interventions to improve physical and/or cognitive performance. Protocol Registration This protocol was registered in the International Platform of Registered Systematic Review and Meta-Analysis Protocols (INPLASY) on May 11, 2022, with the registration number INPLASY202250069.
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Affiliation(s)
- Lúcio A Cunha
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University of Maia, Maia, Portugal
| | - Júlio A Costa
- Portugal Football School, Portuguese Football Federation, Cruz Quebrada, Portugal
| | - Elisa A Marques
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University of Maia, Maia, Portugal
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - João Brito
- Portugal Football School, Portuguese Football Federation, Cruz Quebrada, Portugal
| | - Michele Lastella
- Appleton Institute for Behavioural Science, Central Queensland University, Adelaide, Australia
| | - Pedro Figueiredo
- Physical Education Department, College of Education, United Arab Emirates University, Al Ain, Abu Dhabi, UAE.
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, Vila Real, Portugal.
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14
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Fullagar HHK, Vincent GE, McCullough M, Halson S, Fowler P. Sleep and Sport Performance. J Clin Neurophysiol 2023; 40:408-416. [PMID: 36930212 DOI: 10.1097/wnp.0000000000000638] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
SUMMARY Elite athletes and coaches believe sleep is the most important recovery strategy and widely consider it critical to optimal performance. Despite this perceived importance, there are numerous circumstances that can reduce sleep quantity and quality in athletic populations. Because of the effects of sleep loss on various physical, neurophysiological, and cognitive parameters, such perturbations can have consequences for performance and recovery outcomes. Although peer-reviewed literature examining the interaction between sleep, performance, and recovery in athletes is increasing, understanding of these issues remains equivocal. Perhaps most pertinently, the effect of sleep on sport performance does not align with a one-size-fits-all approach and rather depends on numerous factors such as type of sport, scheduling, time of the season, and the intraindividual requirements for sleep. The relationship between brain plasticity and memory, which in turn can influence learning processes and long-term memory consolidation, suggests that sleep may play an important role in learning new skills and tactics for both elite and developing athletes. The aim of this special issue review was to analyze the evidence of sleep loss on sport performance and recovery, with a specific focus on elite athletes. An assessment of these sleep-compromising situations that elite athletes may face during a typical season and practical considerations for alleviating these issues is also provided to further the understanding for medical professionals, scientists, and applied sporting practitioners alike.
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Affiliation(s)
- Hugh H K Fullagar
- Sport & Exercise Discipline Group, Faculty of Health, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Grace E Vincent
- School of Health, Medical and Applied Sciences, Appleton Institute, Central Queensland University, Adelaide, South Australia, Australia
| | | | - Shona Halson
- School of Behavioural and Health Sciences, Australian Catholic University, Fitzroy, Victoria, Australia ; and
| | - Peter Fowler
- Faculty of Health, Queensland University of Technology, Brisbane City, Queensland, Australia
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15
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Baize D, Meriaux-Scoffier S, Chrétien A, Hayotte M, Piponnier E, d'Arripe-Longueville F. Sleep Assessment in Competitive Athletes: Development and Validation of French Versions of the Athens Insomnia Scale and the Athlete Sleep Behavior Questionnaire. Sleep Sci 2023; 16:183-196. [PMID: 37425979 PMCID: PMC10325846 DOI: 10.1055/s-0043-1770803] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023] Open
Abstract
Objective The purpose of this study was to develop and validate French versions of two questionnaires assessing competitive athletes' sleep: the Athens Insomnia Scale (AIS-FR) and the Athlete Sleep Behavior Questionnaire (ASBQ-FR). Methods Four complementary studies were carried out, with a total sample of 296 French competitive athletes from different sports and expertise levels. The studies aimed to develop preliminary versions of the AIS-FR and the ASBQ-FR (study 1), and then to examine their respective dimensionality and reliability (study 2), temporal stability (study 3), and concurrent validity (study 4). The dimensionality was established using confirmatory factor analysis. Similar and correlated psychological factor scales were used to examine the concurrent validity (the Insomnia Severity Index, the Pittsburgh Sleep Quality Index, the State-Trait Anxiety Inventory and the Positive and Negative Affect Schedule). Results The AIS-FR consists of eight items with two subfactors: nocturnal symptoms and diurnal symptoms, assessed by a uniformized 4-point Likert-type scale. The ASBQ-FR is composed of 15 items with three subfactors, which differs from the original English version: behaviors affecting sleep, behaviors related to anxiety, and sleep disturbances. Due to the Covid context and curfews, three items of the original scale were excluded from the statistical analyses because non-applicable. Both scales presented satisfactory psychometric properties. Discussion The AIS-FR and ASBQ-FR appear to be valid and reliable tools that can be used with competitive athletes for everyday training and research purposes. An ASBQ-FR version that includes the three excluded items should undergo validation testing once pandemic restrictions are eased.
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Affiliation(s)
- Diane Baize
- Sport Sciences department, LAMHESS, Université Côte d'Azur, Nice, France
| | | | - Aurélia Chrétien
- Sport Sciences department, LAMHESS, Université Côte d'Azur, Nice, France
| | - Meggy Hayotte
- Sport Sciences department, LAMHESS, Université Côte d'Azur, Nice, France
| | - Enzo Piponnier
- Sport Sciences department, LAMHESS, Université Côte d'Azur, Nice, France
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16
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Mihailescu L, Chiriac PB, Mihailescu LE, Manolachi V, Potop V. Determining the capacity for effort and recovery of the elite soccer players specialized in different playing positions. PeerJ 2023; 11:e15477. [PMID: 37273546 PMCID: PMC10234270 DOI: 10.7717/peerj.15477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/08/2023] [Indexed: 06/06/2023] Open
Abstract
Background The capacity for effort and recovery in performance sports can be increased by means of modern methodological strategies. This capacity to recover after intense matches and training helps to determine the performance in soccer. Using the Yumeiho technique will accelerate the exercise capacity recovery of the soccer players specialized in central zone positions. Methods The research was conducted with the C.S. Internațional Bălești team, formed of 16 players, aged 19-37 years, divided into two groups: experimental group A, n = 8 with central area players and control group B, n = 8 with players from side zones. Measurement and assessment tests: determining lactic acid level (LAC) in blood; 60 m sprinting speed motor test (ST); anaerobic lactic exercise; Gacon Test for evaluating the aerobic power; VO2max test; Dorgo Test for determining the individual recovery capacity; Sleep Quality and Efficiency Index (PSQI) and sleep duration. Means used in the recovery strategy: easy running, static stretching, cryotherapy; Yumeiho therapy was applied only to group A to accelerate the recovery. Results The anaerobic lactic capacity was evaluated by 60 m sprint test at the beginning and the end of the research. The results highlight the increase of the sprinting speed by 0.08 s in group A (p < 0.001). The aerobic capacity evaluated by means of Gacon Test in both groups shows the value 23.7%, namely a well-prepared level (p < 0.001). VO2max value in the soccer players of group A shows 87.5% good aerobic power, while the players of group B have 50% good aerobic power (p < 0.001). The concentration of LAC after exercise has a higher value in group A (p > 0.05). The level of recovery after exercise is improved in both groups, with larger differences in group A (very good level, p < 0.001). The PSQI grew by 20.37% in group A and by 11% in group B. The sleep duration increased in both groups (p < 0.001). The results of the correlation analysis in the soccer players of group A highlight strong connections of 14.8% while in group B the value is 12.5%. Conclusion The assessment of effort capacity in soccer players specialized in different playing positions at the beginning and the end of the research highlights the increase of the anaerobic lactic effort and aerobic effort. This assessment also shows the improvement of the individual recovery capacity. A higher PSQI and the increase of sleep duration in both groups, with greater differences of group A were found, which determined their level of capacity for effort and recovery. The use of the Yumeiho technique in the program of post-exercise recovery accelerates the aerobic and anaerobic lactic effort capacity of the soccer players specialized in the central zone positions. It positively influences exercise capacity recovery in general.
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Affiliation(s)
- Liliana Mihailescu
- Doctoral School of Sports Science and Physical Education, University of Pitesti, Pitesti, Romania
| | | | | | - Veaceslav Manolachi
- State University of Physical Education and Sport, Chisinau, Republic of Moldova
- “Dunarea de Jos” University of Galati, Galati, Romania
| | - Vladimir Potop
- Doctoral School of Sports Science and Physical Education, University of Pitesti, Pitesti, Romania
- Department of Physical Education and Sport, University of Pitesti, Pitesti, Romania
- State University of Physical Education and Sport, Chisinau, Republic of Moldova
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17
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Alhowimel AS, Alenazi AM, Alshehri MM, Alqahtani BA, Al-Jamaan A, Alodaibi F, Alshehri YS, Charest J. Translation and Validation of the Arabic Version of the Athlete Sleep Screening Questionnaire. Healthcare (Basel) 2023; 11:healthcare11101501. [PMID: 37239787 DOI: 10.3390/healthcare11101501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Sleep improves the cognitive and physical performance of athletes. A detailed questionnaire that detects sleep disruptions is required to identify sleep-deprived athletes. This study evaluates the translated Athlete Sleep Screening Questionnaire (ASSQ), a tool suggested by the International Olympic Committee, among Arabic-speaking athletes. The ASSQ was translated into Arabic and examined for floor or ceiling effects, internal consistency, and validity among Arabic-speaking athletes. The Arabic Pittsburgh Sleep Quality Index (PSQI) was employed to assess convergent validity. Ninety athletes (28.9% women) participated and completed this study's questionnaires. The Cronbach's alpha for the ASSQ-Sleep Difficulty Score (SDS) was 0.435, and that of the ASSQ-chronotype was 0.632. The SDS and chronotype subset of the ASSQ demonstrated excellent test-retest reliability, with intraclass correlation coefficients of 0.84 and 0.938, respectively. The ASSQ-SDS correlated positively with the PSQI (0.734, p = 0.001). The ASSQ-chronotype was inversely associated with the PSQI (p = 0.001). This study's findings can assist clinicians in assessing sleep disorders in sports. The Arabic version of the ASSQ has satisfactory psychometric qualities and can identify clinically relevant sleep problems in athletes.
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Affiliation(s)
- Ahmed S Alhowimel
- Department of Health and Rehabilitation Sciences, Prince Sattam Bin Abdulaziz University, Alkharj 11942, Saudi Arabia
| | - Aqeel M Alenazi
- Department of Health and Rehabilitation Sciences, Prince Sattam Bin Abdulaziz University, Alkharj 11942, Saudi Arabia
| | | | - Bader A Alqahtani
- Department of Health and Rehabilitation Sciences, Prince Sattam Bin Abdulaziz University, Alkharj 11942, Saudi Arabia
| | - Abdulaziz Al-Jamaan
- Department of Health and Rehabilitation Sciences, Prince Sattam Bin Abdulaziz University, Alkharj 11942, Saudi Arabia
| | - Faris Alodaibi
- Department of Rehabilitation Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Yasir S Alshehri
- Department of Physical Therapy, College of Medical Rehabilitation Sciences, Taibah University, Madinah 41411, Saudi Arabia
| | - Jonathan Charest
- Faculty of Kinesiology, University of Calgary, Calgary, AB T2N 1N4, Canada
- Centre for Sleep & Human Performance, Calgary, AB T2X 3V4, Canada
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18
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Pillitteri G, Rossi A, Simonelli C, Leale I, Giustino V, Battaglia G. Association between internal load responses and recovery ability in U19 professional soccer players: A machine learning approach. Heliyon 2023; 9:e15454. [PMID: 37123915 PMCID: PMC10131058 DOI: 10.1016/j.heliyon.2023.e15454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/05/2023] [Accepted: 04/10/2023] [Indexed: 05/02/2023] Open
Abstract
Background The objective of soccer training load (TL) is enhancing players' performance while minimizing the possible negative effects induced by fatigue. In this regard, monitoring workloads and recovery is necessary to avoid overload and injuries. Given the controversial results found in literature, this study aims to better understand the complex relationship between internal training load (IL) by using rating of perceived exertion (RPE), recovery, and availability (i.e., subjective players' readiness status). Methods In this cross-sectional study, twenty-two-professional soccer players (age: 18.5 ± 0.4 years, height: 177 ± 6 cm, weight: 67 ± 6.7 kg) competing in the U19 Italian Championship were monitored using RPE scale to assess IL, and TreS scale to detect information about recovery and training/match availability during an entire season (2021-2022). Results Autocorrelation analysis showed a repeated pattern with 7 days lag (weekly microcycle pattern) for all the variables considered (i.e., TL, recovery, and availability). For recovery (r = 0.64, p < 0.001) and availability (r = 0.63, p < 0.001) the best lag for both of them is 1 day. It indicates that recovery and availability are related to the past day value. Moreover, TL was found to be negatively affected by recovery and availability of the current day (lag = 0 day). Cross-correlation analysis indicates that TL is negatively affected by recovery (r = 0.46, p < 0.001) and availability (r = 0.42, p < 0.001) of the current day (lag = 0 day). In particular, lower recovery and availability will result in following lower TL. Furthermore, we found that TL negatively affects recovery (r = 0.52, p < 0.001) and availability (r = 0.39, p < 0.01) of the next day (lag = 1 day). In fact, the higher the TL in a current day is, the lower the recovery and availability in the next day will be. Conclusion In conclusion, this study highlights that there is a relationship between TL and recovery and that these components influence each other both on the same day and on the next one. The use of RPE and TreS scale to evaluate TL and recovery/availability of players allows practitioners to better adjust and schedule training within the microcycle to enhance performance while reducing injury risk.
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Affiliation(s)
- Guglielmo Pillitteri
- Sport and Exercise Sciences Research Unit, Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy
| | - Alessio Rossi
- Department of Computer Science, University of Pisa, Pisa, Italy
- National Research Council (CNR), Institute of Information Science and Technologies (ISTI), Pisa, Italy
| | - Carlo Simonelli
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Ignazio Leale
- Sport and Exercise Sciences Research Unit, Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy
| | - Valerio Giustino
- Sport and Exercise Sciences Research Unit, Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy
| | - Giuseppe Battaglia
- Sport and Exercise Sciences Research Unit, Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy
- Corresponding author.
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19
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Nishida M, Okano S, Ichinose A, Suyama S, Youn S. Daytime Napping Benefits Passing Performance and Scanning Activity in Elite Soccer Players. J Sports Sci Med 2023; 22:75-83. [PMID: 36876185 PMCID: PMC9982537 DOI: 10.52082/jssm.2023.75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 01/22/2023] [Indexed: 02/03/2023]
Abstract
The present study explored the effect of a daytime napping opportunity on scanning activity, which is an essential component of successful soccer performance. Fourteen male elite collegiate soccer players performed the Trail Making Test (TMT), which was used to assess complex visual attention. In addition, a soccer passing test, modified with reference to the Loughborough Soccer Passing Test, was used to evaluate passing performance as well as scanning activity. A cross-over design was applied to examine nap and no-nap interventions. Participants (N = 14, mean age: 21.6 SD = 0.5 years, height: 1.73 ± 0.06 m, body mass: 67.1 ± 4.5 kg) were randomly allocated to a midday nap (40 minutes) or no-nap group. Subjective sleepiness was measured using the Karolinska Sleepiness Scale, and perceptive fatigue was evaluated by the visual analog scale. There were no significant differences in subjective measurements or TMT between the nap and no-nap groups. However, the performance time for the passing test and scanning activity was significantly shorter (p < 0.001) and scanning activity was significantly more frequent in the nap condition than in the no-nap condition (p < 0.00005). These results suggest that daytime napping is beneficial for soccer-related cognitive function, represented by visuospatial processing and decision-making, and particularly as a potential countermeasure to mental fatigue. Considering that inadequate sleep and residual fatigue are commonly observed in elite soccer, this finding may have practical implications for the preparation of players.
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Affiliation(s)
- Masaki Nishida
- Faculty of Sport Sciences, Waseda University.,Sleep Research Institute, Waseda University, Japan
| | - Shuta Okano
- Faculty of Sport Sciences, Waseda University
| | - Atsushi Ichinose
- Faculty of Sport Sciences, Waseda University.,Sleep Research Institute, Waseda University, Japan
| | - Shutaro Suyama
- Faculty of Sport Sciences, Waseda University.,Sleep Research Institute, Waseda University, Japan
| | - Sumi Youn
- Faculty of Sport Sciences, Waseda University.,Sleep Research Institute, Waseda University, Japan
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20
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Ferreira ABDM, Ribeiro BLL, Batista EDS, Dantas MP, Mortatti AL. The Influence of Different Training Load Magnitudes on Sleep Pattern, Perceived Recovery, and Stress Tolerance in Young Soccer Players. J Strength Cond Res 2023; 37:351-357. [PMID: 36354748 DOI: 10.1519/jsc.0000000000004235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
ABSTRACT Ferreira, ABdM, Ribeiro, BLL, Batista, EdS, Dantas, MP, and Mortatti, AL. The influence of different training load magnitudes on sleep pattern, perceived recovery, and stress tolerance in young soccer players. J Strength Cond Res 37(2): 351-357, 2023-The aim of this study was to analyze the influence of 3 weeks on sleep parameters, perceived recovery, and stress tolerance in young soccer players using different training load magnitudes. A total of 13 young male soccer athletes (15.9 ± 0.5 years; 68.7 ± 6.1 kg; 170 ± 7 cm) who performed 3 typical training weeks with different workloads were analyzed. The external training load (ETL) was verified by the PlayerLoad method, and the internal training load (ITL) was determined using the session rating of perceived exertion method. Sleep was monitored using a wrist-actigraphy monitor. Sleep variables, including total time in bed (TTB), total sleep time (TST), sleep latency (SL), wake after sleep onset (WASO), and sleep efficiency (SE), were evaluated across all nights of sleep. The recovery status was assessed with the perceived recovery status (PRS) scale, and the stress tolerance was monitored using the "daily analysis of life demands of athletes" questionnaire. There was an increase in sleep time during the week with the highest training load (week 2) (TTB: +35 minutes, TST: +46 minutes, SL: -5 minutes, SE: +3%). There was no difference in the PRS or in the stress tolerance during the evaluation weeks. A very large within-individual correlation was observed between ITL and ETL ( r = 0.78) and moderate within-individual correlation between ETL and TST ( r = 0.34), between ITL and TST ( r = 0.45), and between ITL and SE ( r = 0.359). These results showed that there was an increase in TST during a microcycle with intensified loads, without impairing bedtime and resulting in maintenance of the perceived recovery or stress tolerance values.
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21
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Perspectives on Postmatch Fatigue From 300 Elite European Soccer Players. Int J Sports Physiol Perform 2023; 18:55-60. [PMID: 36521189 DOI: 10.1123/ijspp.2022-0200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/07/2022] [Accepted: 09/13/2022] [Indexed: 12/23/2022]
Abstract
PURPOSE To examine the general perspectives of elite soccer players on the time course of perceived postmatch fatigue and the influence of away matches on subjective perceptions. METHODS Adopting a cross-sectional study design, we invited 371 subjects from 14 top-division European clubs competing in the Belgian First Division A, English Premier League, French Ligue 1, Italian Serie A, Portuguese Primeira Liga, Russian Premier League, and Swiss Premier League to take part in a short survey on general issues relating to postmatch fatigue measurement and tracking in professional soccer. RESULTS Three hundred male professional soccer players completed the short questionnaire. For perceptions relevant to the time course of postmatch fatigue, two-thirds of respondents (67%) indicated higher postmatch fatigue perceived 2 days (48 h) after an official competition. Among these respondents, a higher proportion of answers was observed in wide midfielders (74%), attackers (74%), and central midfielders (68%). Approximately two-thirds of respondents (63%) indicated more than usual and much more than usual perceived postmatch fatigue following away matches. CONCLUSIONS For the first time, our investigation addressed practical aspects that remained unexplored and fundamental to the definition of an optimal player management process following a competition. From a practical standpoint, perspectives of individual elite soccer players substantiated the notion of implementing processes with dedicated recovery protocols within 48 hours postmatch and highlighted the need for differential strategies addressing the additional burden of away matches and travel.
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22
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Modulation of Oxidative Stress and Antioxidant Response by Different Polyphenol Supplements in Five-a-Side Football Players. Nutrients 2022; 15:nu15010177. [PMID: 36615834 PMCID: PMC9824383 DOI: 10.3390/nu15010177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022] Open
Abstract
Oxidative stress is associated with playing soccer. The objective of the present report was to study the influence of different polyphenolic antioxidant-rich beverages in five-a-side/futsal players. The study was performed with a no supplemented control group (CG) and two supplemented groups with an almond-based beverage (AB) and the same beverage fortified with Lippia citriodora extract (AB + LE). At day 22, participants played a friendly futsal game. Blood extractions were performed at the beginning of intervention (day 1), before and after match (day 22) to determine oxidative stress markers and antioxidant enzyme activities in plasma, neutrophils and peripheral blood mononuclear cells (PBMCs). Malondialdehyde increased significantly in controls after the match in neutrophils, PBMCs and plasma compared to pre-match. Protein carbonyls also increased after the match in plasma in CG. In addition, malondialdehyde levels in neutrophils were significantly lower in the supplemented groups compared to controls. Post-match samples showed significant increases in neutrophil antioxidant activities in CG. Supplemented groups displayed variable results regarding neutrophil antioxidant activities, with superoxide dismutase activity significantly lower than in controls. Finally, post-match myeloperoxidase activity increased significantly in controls compared to pre-match and supplemented groups. In conclusion, polyphenolic antioxidant and anti-inflammatory supplements could be instrumental for optimal recovery after high intensity futsal games.
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23
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Litwic-Kaminska K, Kotyśko M, Pracki T, Wiłkość-Dębczyńska M, Stankiewicz B. The Effect of Autogenic Training in a Form of Audio Recording on Sleep Quality and Physiological Stress Reactions of University Athletes-Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16043. [PMID: 36498114 PMCID: PMC9737934 DOI: 10.3390/ijerph192316043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Despite the growing popularity of relaxation training, the effectiveness of an autogenic training (AT) as a method of dealing with sleep problems in group of student athletes is unknown. Therefore, this study aimed to fill this gap. University athletes with decreased sleep quality (selected from 209 participants) were randomly assigned to the experimental (EG, n = 11) and control (CG, n = 11) groups similar in terms of sleep quality, age, gender, type of sport discipline and sport experience. During the 14 days dedicated to performing relaxation training in the form of an audio recording, electronic daily logs and actigraphy were used to monitor the athletes' sleep and daily activity. The EG listened to the recording with suggestions based on AT and CG only to the background music. Pre- and post-measurements of sleep quality by means of the Pittsburg Sleep Quality Index (PSQI) and physiological stress reactions by biofeedback device were performed. In EG and CG, the parameters of sleep and daily activity obtained by actigraphy and daily logs as well as physiological indicators of emotional reactivity did not differ. Sleep quality in PSQI significantly increased after AT usage in EG. AT seems to be an effective method for university athletes in improving subjective sleep quality, but further studies are necessary.
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Affiliation(s)
| | - Martyna Kotyśko
- Department of Clinical Psychology, Development and Education, Faculty of Social Sciences, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland
| | - Tadeusz Pracki
- Faculty of Psychology, Kazimierz Wielki University, 85-064 Bydgoszcz, Poland
| | | | - Błażej Stankiewicz
- Institute of Physical Culture, Kazimierz Wielki University, 85-064 Bydgoszcz, Poland
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24
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Recovery During a Congested Schedule and Injury in Professional Football. Int J Sports Physiol Perform 2022; 17:1399-1406. [PMID: 35483701 DOI: 10.1123/ijspp.2021-0504] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 12/16/2022]
Abstract
PURPOSE To analyze the relationships between the recovery kinetics experienced by professional football players and noncontact injury. METHODS A cohort of 46 professional football players (age 24.2 [4.7] y) from the same team (French Ligue 1) was monitored each day between matches when the team played twice a week. The recovery monitoring procedure was implemented after 38 matches and included some questionnaires: duration of sleep, Hooper scale (quality of sleep, level of stress, fatigue, and muscle soreness), perceived recovery status scale, creatine kinase concentrations, a countermovement jump, and an isometric force test. Noncontact injuries were collected during these periods. RESULTS Noncontact injuries were associated with perceived fatigue and muscle soreness 2 days (relative risk [RR] = 1.89 and 1.48, respectively) and 3 days following the matches (RR = 2.08 and 2.08, respectively). An increase of sleep quantity during the 2 nights following a match was significantly associated with a lower RR (RR = 0.65), as well as a lower decrement score on the isometric force test on each of the 3 days after the matches (RR = 0.97, RR = 0.99, and RR = 0.97, respectively). No other association was reported for the variables sleep quality, stress, perceived recovery, creatine kinase concentrations, countermovement jump, and noncontact injuries. CONCLUSION During a congested schedule, implementing a recovery monitoring protocol including questionnaires about fatigue, muscle soreness, quantity of sleep, and a physical test of isometric force could help practitioners prevent injuries.
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Leduc C, Weaving D, Owen C, Ramirez-Lopez C, Chantler S, Aloulou A, Tee J, Jones B. The effect of acute sleep extension vs active recovery on post exercise recovery kinetics in rugby union players. PLoS One 2022; 17:e0273026. [PMID: 35980956 PMCID: PMC9387860 DOI: 10.1371/journal.pone.0273026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 08/01/2022] [Indexed: 11/24/2022] Open
Abstract
Background Elite rugby players experience poor sleep quality and quantity. This lack of sleep could compromise post-exercise recovery. Therefore, it appears central to encourage sleep in order to improve recovery kinetics. However, the effectiveness of an acute ergogenic strategy such as sleep extension on recovery has yet to be investigated among athletes. Aim To compare the effects of a single night of sleep extension to an active recovery session (CON) on post-exercise recovery kinetics. Methods In a randomised cross-over design, 10 male rugby union players participated in two evening training sessions (19:30) involving collision activity, 7-days apart. After each session, participants either extended their sleep to 10 hours or attended an early morning recovery session (07:30). Prior to (PRE), immediately after (POST 0 hour [h]), 14h (POST 14) and 36h (POST 36) post training, neuromuscular, perceptual and cognitive measures of fatigue were assessed. Objective sleep parameters were monitored two days before the training session and over the two-day recovery period. Results The training session induced substantial decreases in countermovement jump mean power and wellness across all time points, while heart rate recovery decreased at POST 0 in both conditions. Sleep extension resulted in greater total sleep time (effect size [90% confidence interval]: 5.35 [4.56 to 6.14]) but greater sleep fragmentation than CON (2.85 [2.00 to 3.70]). Between group differences highlight a faster recovery of cognitive performance following sleep extension (-1.53 [-2.33 to -0.74]) at POST 14, while autonomic function (-1.00 [-1.85 to -0.16]) and upper-body neuromuscular function (-0.78 [-1.65 to 0.08]) were better in CON. However, no difference in recovery status between groups was observed at POST 36. Conclusion The main finding of this study suggests that sleep extension could affect cognitive function positively but did not improve neuromuscular function the day after a late exercise bout.
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Affiliation(s)
- Cedric Leduc
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom
- * E-mail:
| | - Dan Weaving
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom
- Leeds Rhinos Rugby League Club, Leeds, United Kingdom
| | - Cameron Owen
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom
| | - Carlos Ramirez-Lopez
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom
- England Performance Unit, The Rugby Football League, Leeds, United Kingdom
| | - Sarah Chantler
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom
| | - Anis Aloulou
- French National Institute of Sport (INSEP), Laboratory of Sport, Expertise and Performance (EA 7370), Paris, France
| | - Jason Tee
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Ben Jones
- Carnegie Applied Rugby Research (CARR) Centre, Carnegie School of Sport, Leeds Beckett University, Leeds, United Kingdom
- Leeds Rhinos Rugby League Club, Leeds, United Kingdom
- England Performance Unit, The Rugby Football League, Leeds, United Kingdom
- School of Science and Technology, University of New England, Armidale, NSW, Australia
- Division of Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, the University of Cape Town and the Sports Science Institute of South Africa, Cape Town, South Africa
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Alves Facundo L, Brant VM, Guerreiro RC, Andrade HDA, Louzada FM, Silva A, Mello MTD. Sleep regularity in athletes: Comparing sex, competitive level and sport type. Chronobiol Int 2022; 39:1381-1388. [PMID: 35950541 DOI: 10.1080/07420528.2022.2108716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study aims to describe the athletes' sleep regularity using the Sleep Regularity Index (SRI) and determine whether factors, such as sex, competitive level and sport type, could affect the sleep/wake rhythm. It is a descriptive, cross-sectional study consisting of 172 athletes (25 ± 7 y old; 45 women). Seventy-three competed in team sports and 99 in individual sports. Furthermore, 56 competed in the international level, 95 in the national and 21 in the regional. We recorded the SRI values for at least 5 d via continuous actigraphy. We recorded a mean SRI value of 73 ± 12. We found no significant differences between athletes' sleep parameters in relation to sleep regularity. Furthermore, SRI data showed no correlations (Spearman's ρ) with sleep parameters, bed time and wake time. Female athletes (p = 0.001) and individual sport athletes (p = 0.001) reported better sleep regularity than their counterparts. International-level athletes reported better sleep regularity than those in other competitive levels (national: p = 0.001; regional: p = 0.024). Our study showed that international level athletes, female athletes and individual sport athletes reported better sleep regularity. Additionally, SRI data showed no correlation with athletes' sleep parameters, bed and wake time.
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Affiliation(s)
- Lucas Alves Facundo
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Valdênio Martins Brant
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Renato Carvalho Guerreiro
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Henrique de Araújo Andrade
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Andressa Silva
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Marco Túlio de Mello
- Center for Studies in Psychobiology and Exercise, Federal University of Minas Gerais, Belo Horizonte, Brazil.,Sports Department, Federal University of Minas Gerais, Belo Horizonte, Brazil
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Coel RA, Pujalte GGA, Applewhite AI, Zaslow T, Cooper G, Ton AN, Benjamin HJ. Sleep and the Young Athlete. Sports Health 2022:19417381221108732. [PMID: 35855519 DOI: 10.1177/19417381221108732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
CONTEXT Sleep plays a vital role in cognitive and physical performance. Teenage athletes (ages 13-19 years) are considered especially at risk for disordered sleep and associated negative cognitive, physical, and psychosomatic effects. However, there is a paucity of evidence-based recommendations to promote sleep quality and quantity in athletes who fall within this age range. We performed a review of the literature to reveal evidence-based findings and recommendations to help sports instructors, athletic trainers, physical therapists, physicians, and other team members caring for young athletes provide guidance on sleep optimization for peak sports performance and injury risk reduction. METHODS PubMed, Scopus, and Cochrane CENTRAL were searched on May 11, 2016, and then again on September 1, 2020, for relevant articles published to date. STUDY DESIGN Narrative review. LEVEL OF EVIDENCE Level 4. RESULTS Few studies exist on the effects disordered sleep may have on teenage athletes. By optimizing sleep patterns in young athletes during training and competitions, physical and mental performance, and overall well-being, may be optimized. Adequate sleep has been shown to improve the performance of athletes, although further studies are needed. CONCLUSION Twenty-five percent of total sleep time should be deep sleep, with a recommended sleep time of 8 to 9 hours for most young athletes. Screen and television use during athletes' bedtime should be minimized to improve sleep quality and quantity. For young athletes who travel, jet lag can be minimized by allowing 1 day per time zone crossed for adjustment, limiting caffeine intake, planning meals and onboard sleeping to coincide with destination schedules, timing arrivals in the morning whenever possible, and using noise-canceling headphones and eyeshades. STRENGTH-OF-RECOMMENDATION TAXONOMY (SORT) B.
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Affiliation(s)
- Rachel A Coel
- Department of Family Medicine, University of Hawaii, Honolulu, Hawaii
| | - George G A Pujalte
- Department of Family Medicine, Mayo Clinic, Jacksonville, Florida.,Division of Sports Medicine, Mayo Clinic, Jacksonville, Florida
| | | | - Tracy Zaslow
- Children's Orthopedic Center, Children's Hospital Los Angeles, Los Angeles, California
| | - George Cooper
- Division of Sports Medicine, Mayo Clinic, Jacksonville, Florida
| | - Angie N Ton
- Department of Family Medicine, Mayo Clinic, Scottsdale, Arizona
| | - Holly J Benjamin
- Department of Orthopaedic Surgery and Rehabilitation Medicine University of Chicago, Chicago, Illinois.,Department of Pediatrics, University of Chicago, Chicago, Illinois
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Romdhani M, Ammar A, Trabelsi K, Chtourou H, Vitale JA, Masmoudi L, Nédélec M, Rae DE, Al Horani RA, Ben Saad H, Bragazzi N, Dönmez G, Dergaa I, Driss T, Farooq A, Hammouda O, Harroum N, Hassanmirzaei B, Khalladi K, Khemila S, Mataruna-Dos-Santos LJ, Moussa-Chamari I, Mujika I, Muñoz Helú H, Norouzi Fashkhami A, Paineiras-Domingos LL, Khaneghah MR, Saita Y, Souabni M, Souissi N, Washif JA, Weber J, Zmijewski P, Taylor L, Garbarino S, Chamari K. Ramadan Observance Exacerbated the Negative Effects of COVID-19 Lockdown on Sleep and Training Behaviors: A International Survey on 1,681 Muslim Athletes. Front Nutr 2022; 9:925092. [PMID: 35845770 PMCID: PMC9283087 DOI: 10.3389/fnut.2022.925092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/30/2022] [Indexed: 01/04/2023] Open
Abstract
Objective Disrupted sleep and training behaviors in athletes have been reported during the COVID-19 pandemic. We aimed at investigating the combined effects of Ramadan observance and COVID-19 related lockdown in Muslim athletes. Methods From an international sample of athletes (n = 3,911), 1,681 Muslim athletes (from 44 countries; 25.1 ± 8.7 years, 38% females, 41% elite, 51% team sport athletes) answered a retrospective, cross-sectional questionnaire relating to their behavioral habits pre- and during- COVID-19 lockdown, including: (i) Pittsburgh sleep quality index (PSQI); (ii) insomnia severity index (ISI); (iii) bespoke questions about training, napping, and eating behaviors, and (iv) questions related to training and sleep behaviors during-lockdown and Ramadan compared to lockdown outside of Ramadan. The survey was disseminated predominately through social media, opening 8 July and closing 30 September 2020. Results The lockdown reduced sleep quality and increased insomnia severity (both p < 0.001). Compared to non-Muslim (n = 2,230), Muslim athletes reported higher PSQI and ISI scores during-lockdown (both p < 0.001), but not pre-lockdown (p > 0.05). Muslim athletes reported longer (p < 0.001; d = 0.29) and later (p < 0.001; d = 0.14) daytime naps, and an increase in late-night meals (p < 0.001; d = 0.49) during- compared to pre-lockdown, associated with lower sleep quality (all p < 0.001). Both sleep quality (χ2 = 222.6; p < 0.001) and training volume (χ2 = 342.4; p < 0.001) were lower during-lockdown and Ramadan compared to lockdown outside of Ramadan in the Muslims athletes. Conclusion Muslim athletes reported lower sleep quality and higher insomnia severity during- compared to pre-lockdown, and this was exacerbated by Ramadan observance. Therefore, further attention to Muslim athletes is warranted when a circadian disrupter (e.g., lockdown) occurs during Ramadan.
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Affiliation(s)
- Mohamed Romdhani
- High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
- Physical Activity, Sport and Health, UR18JS01, National Observatory of Sports, Tunis, Tunisia
| | - Achraf Ammar
- Institute of Sport Science, Otto von Guericke University, Magdeburg, Germany
- Department of Training and Movement Science, Institute of Sport Science, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Khaled Trabelsi
- High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
- Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, University of Sfax, Sfax, Tunisia
| | - Hamdi Chtourou
- High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
- Physical Activity, Sport and Health, UR18JS01, National Observatory of Sports, Tunis, Tunisia
| | | | - Liwa Masmoudi
- High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Mathieu Nédélec
- The French National Institute of Sport (INSEP), Research Unit, Laboratory Sport, Expertise and Performance (EA7370), Paris, France
| | - Dale E. Rae
- Division of Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | | | - Helmi Ben Saad
- Laboratoire de Recherche (LR12SP09) “Insuffisance Cardiaque” Sousse, Faculté de Médecine de Sousse, Hôpital Farhat Hached, Université de Sousse, Sousse, Tunisia
| | - Nicola Bragazzi
- Department of Health Sciences, Postgraduate School of Public Health, University of Genoa, Genoa, Italy
- Laboratory for Industrial and Applied Mathematics, Department of Mathematics and Statistics, York University, Toronto, ON, Canada
| | - Gürhan Dönmez
- Department of Sports Medicine, Hacettepe University School of Medicine, Ankara, Turkey
| | | | - Tarak Driss
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2), UFR STAPS (Faculty of Sport Sciences), UPL, Paris Nanterre University, Nanterre, France
| | - Abdulaziz Farooq
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
| | - Omar Hammouda
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2), UFR STAPS (Faculty of Sport Sciences), UPL, Paris Nanterre University, Nanterre, France
- Research Laboratory, Molecular Bases of Human Pathology, LR19ES13, Faculty of Medicine, University of Sfax, Sfax, Tunisia
| | - Nesrine Harroum
- Faculty of Medicine, School of Kinesiology and Physical Activity Science, University of Montreal, Montreal, QC, Canada
| | - Bahar Hassanmirzaei
- Sports Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Iran Football Medical Assessment and Rehabilitation Center, IFMARC, FIFA Medical Center of Excellence, Tehran, Iran
| | - Karim Khalladi
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
| | - Syrine Khemila
- Physical Activity, Sport and Health, UR18JS01, National Observatory of Sports, Tunis, Tunisia
- High Institute of Sports and Physical Education, Ksar Said, Manouba University, Manouba, Tunisia
| | - Leonardo Jose Mataruna-Dos-Santos
- Department of Sport Management, Faculty of Management, Canadian University Dubai, Dubai, United Arab Emirates
- Coventry University – Centre for Trust, Peace and Social Relation, Coventry, United Kingdom
| | - Imen Moussa-Chamari
- Physical Education Department, College of Education, Qatar University, Doha, Qatar
| | - Iñigo Mujika
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country, Leioa, Spain
- Exercise Science Laboratory, Faculty of Medicine, School of Kinesiology Universidad Finis Terrae, Santiago, Chile
| | - Hussein Muñoz Helú
- Department of Economic-Administrative Sciences, Universidad Autónoma de Occidente, Culiacán, Mexico
| | | | - Laisa Liane Paineiras-Domingos
- Programa de Pós-graduação em Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- Departamento de Fisioterapia, Instituto Multidisciplinar de Reabilitação e Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | | | - Yoshitomo Saita
- Department of Sports and Regenerative Medicine, Juntendo University, Tokyo, Japan
| | - Maher Souabni
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2), UFR STAPS (Faculty of Sport Sciences), UPL, Paris Nanterre University, Nanterre, France
| | - Nizar Souissi
- Physical Activity, Sport and Health, UR18JS01, National Observatory of Sports, Tunis, Tunisia
- High Institute of Sports and Physical Education, Ksar Said, Manouba University, Manouba, Tunisia
| | - Jad Adrian Washif
- Sports Performance Division, National Sports Institute of Malaysia, Kuala Lumpur, Malaysia
| | - Johanna Weber
- Neurocognition and Action – Biomechanics, Bielefeld University, Bielefeld, Germany
- Institute for Sports Science, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Piotr Zmijewski
- Józef Piłsudski University of Physical Education in Warsaw, Warsaw, Poland
| | - Lee Taylor
- National Center for Sport and Exercise Medicine (NCSEM), School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom
- Sport and Exercise Discipline Group, Faculty of Health, University of Technology Sydney (UTS), Sydney, NSW, Australia
| | - Sergio Garbarino
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal-Infantile Sciences, University of Genoa, Genoa, Italy
- Post-graduate School of Occupational Medicine, Università Cattolica del Sacro Cuore, Rome, Italy
- *Correspondence: Sergio Garbarino,
| | - Karim Chamari
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
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Acute Sleep Deprivation Impairs Motor Inhibition in Table Tennis Athletes: An ERP Study. Brain Sci 2022; 12:brainsci12060746. [PMID: 35741631 PMCID: PMC9221109 DOI: 10.3390/brainsci12060746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 12/03/2022] Open
Abstract
Excellent response inhibition is the basis for outstanding competitive athletic performance, and sleep may be an important factor affecting athletes’ response inhibition. This study investigates the effect of sleep deprivation on athletes’ response inhibition, and its differentiating effect on non-athlete controls’ performance, with the aim of helping athletes effectively improve their response inhibition ability through sleep pattern manipulation. Behavioral and event-related potential (ERP) data were collected from 36 participants (16 table tennis athletes and 20 general college students) after 36 h of sleep deprivation using ERP techniques and a stop-signal task. Sleep deprivation’s different effects on response inhibition in the two groups were explored through repeated-measures ANOVA. Behavioral data showed that in a baseline state, stop-signal response time was significantly faster in table tennis athletes than in non-athlete controls, and appeared significantly longer after sleep deprivation in both groups. ERP results showed that at baseline state, N2, ERN, and P3 amplitudes were lower in table tennis athletes than in non-athlete controls, and corresponding significant decreases were observed in non-athlete controls after 36 h of sleep deprivation. Table tennis athletes showed a decrease in P3 amplitude and no significant difference in N2 and ERN amplitudes, after 36 h of sleep deprivation compared to the baseline state. Compared to non-athlete controls, table tennis athletes had better response inhibition, and the adverse effects of sleep deprivation on response inhibition occurred mainly in the later top-down motor inhibition process rather than in earlier automated conflict detection and monitoring.
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Associations between Training Load and Well-Being in Elite Beach Soccer Players: A Case Report. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19106209. [PMID: 35627748 PMCID: PMC9140563 DOI: 10.3390/ijerph19106209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 05/14/2022] [Accepted: 05/18/2022] [Indexed: 02/06/2023]
Abstract
The current case study aimed to quantify within-subjects correlations between training load and well-being in elite male beach soccer players. Data were obtained over three consecutive days during the preparation camp for the FIFA Beach Soccer World Cup Russia 2021. The session rating of perceived exertion (s-RPE) and external training load metrics using global positioning system (GPS) were recorded. Eleven players reported perceived well-being (sleep quality, fatigue, muscle soreness and stress) using a Likert scale (Hooper Index) before breakfast. Within-subjects correlation coefficients between workload and well-being were calculated. Workload metrics and perceived well-being indices were significantly lower on day three than on days one and two. The Hooper Index presented a very large positive correlation with s-RPE (r = 0.86 [0.67, 0.94], 95% confidence interval, CI), exposure time (r = 0.88 [0.71, 0.95]), total distance (r = 0.83 [0.60, 0.93]), high-speed distance (r = 0.77 [0.50, 0.91]), and number of sprints (r = 0.75 [0.47, 0.90]). Sleep quality presented a moderate to large positive correlation with s-RPE (r = 0.51 [0.11, 0.77]), exposure time (r = 0.50 [0.10, 0.76]), high-speed distance (r = 0.53 [0.15, 0.78]), number of sprints (r = 0.62 [0.28, 0.83]) and total distance (r = 0.41 [0.18, 0.78]). Fatigue presented a large to very large positive correlation with s-RPE (r = 0.85 [0.66, 0.94]), exposure time (r = 0.90 [0.78, 0.96]), total distance (r = 0.86 [0.68, 0.94]), high-speed distance (r = 0.65 [0.31, 0.84]) and number of sprints (r = 0.56 [0.18, 0.79]). Muscle soreness presented a large to very large positive correlation with s-RPE (r = 0.79 [0.56, 0.91]), exposure time (r = 0.83 [0.62, 0.93]), total distance (r = 0.81 [0.59, 0.92]), high-speed distance (r = 0.75 [0.47, 0.89]) and number of sprints (r = 0.59 [0.22, 0.81]). Overall, workload presented a meaningful correlation with perceived well-being indices in elite male beach soccer players during a training camp. These findings suggest that workload metrics and perceived well-being indices can be implemented into the daily routine of an elite beach soccer team, which may assist coaches, sports scientists, and practitioners in better preparing players for beach soccer competitions.
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Evidence‐Based Recovery in Soccer – Low‐Effort Approaches for Practitioners. J Hum Kinet 2022; 82:75-99. [PMID: 36196351 PMCID: PMC9465732 DOI: 10.2478/hukin-2022-0082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Strategies to improve recovery are widely used among soccer players at both amateur and professional levels. Sometimes, however, recovery strategies are ineffective, improperly timed or even harmful to players. This highlights the need to educate practitioners and athletes about the scientific evidence of recovery strategies as well as to provide practical approaches to address this issue. Therefore, recent surveys among soccer athletes and practitioners were reviewed to identify the recovery modalities currently in use. Each strategy was then outlined with its rationale, its physiological mechanisms and the scientific evidence followed by practical approaches to implement the modality. For each intervention, practical and particularly low-effort strategies are provided to ensure that practitioners at all levels are able to implement them. We identified numerous interventions regularly used in soccer, i.e., sleep, rehydration, nutrition, psychological recovery, active recovery, foam-rolling/massage, stretching, cold-water immersion, and compression garments. Nutrition and rehydration were classified with the best evidence, while cold-water immersion, compression garments, foam-rolling/massage and sleep were rated with moderate evidence to enhance recovery. The remaining strategies (active recovery, psychological recovery, stretching) should be applied on an individual basis due to weak evidence observed. Finally, a guide is provided, helping practitioners to decide which intervention to implement. Here, practitioners should rely on the evidence, but also on their own experience and preference of the players.
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Nédélec M, Chauvineau M, Guilhem G. On the Road to Camarón: The Sleep of an Ultra-Endurance Athlete Cycling 10,000 km in 24 Days. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19084543. [PMID: 35457410 PMCID: PMC9025025 DOI: 10.3390/ijerph19084543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/01/2022] [Accepted: 04/08/2022] [Indexed: 12/10/2022]
Abstract
The impact of sleep on performance is fundamental for ultra-endurance athletes, but studies on this issue are rare. The current investigation examined the sleep and performance of a cyclist engaged in a simulated 10,000 km tour. The sleep behavior of the athlete (age, 57; height, 1.85 m; mass, 81 kg) before, during (i.e., 23 nights), and after the tour was monitored using a reduced-montage dry-electroencephalographic (EEG) device. The daily performance (i.e., number of kms) was recorded throughout the race. The cyclist set a new world record, completing 10,358 km in 24 days with a mean daily distance of ≈432 km in approximately 16 h, i.e., an average speed of ≈27 km/h. Sleep duration throughout the tour (5:13 ± 0:30) was reduced compared to the baseline sleep duration (7:00 ± 1:00), with a very large difference (ES = 2.3). The proportion of N3 during the tour (46 ± 7%) was compared to the measured N3 proportion during the baseline (27 ± 5%) and was found to be systematically outside the intra-individual variability (mean ± 1 SD), with a very large difference (ES = 3.1). This ultra-endurance event had a major influence on sleep-duration reduction and a notable modification in sleep architecture. The increase in slow-wave sleep during the race may be linked to the role of slow-wave sleep in physiological recovery.
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Cheah JW, Danilkowicz R, Hutyra C, Lewis B, Olson S, Poehlein E, Green CL, Mather R. High Prevalence of Sleep Disturbance Is Associated with Femoroacetabular Impingement Syndrome. Arthrosc Sports Med Rehabil 2022; 4:e495-e501. [PMID: 35494310 PMCID: PMC9042751 DOI: 10.1016/j.asmr.2021.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 11/01/2021] [Indexed: 10/24/2022] Open
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The Effect of Rugby Union Match Play on Sleep Patterns and Subsequent Impact on Postmatch Fatigue Responses. Int J Sports Physiol Perform 2022; 17:852-861. [PMID: 35235907 DOI: 10.1123/ijspp.2021-0421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 11/18/2022]
Abstract
PURPOSE Sleep is recognized as an important recovery strategy, yet little is known regarding its impact on postmatch fatigue. The aims of this study were to (1) describe sleep and postmatch fatigue, (2) understand how sleep is affected by contextual and match factors, and (3) assess how changes in sleep can affect postmatch fatigue. METHODS Twenty-three male rugby union players were monitored across 1 season (N = 71 player-match observations). Actigraphy was used during preseason to establish baseline sleep quality and quantity. Sleep was then measured 1 and 2 days after each match day (MD + 1 and MD + 2). Global positioning systems, notational analysis, and rating of perceived exertion represented external and internal load from matches. Subjective wellness and a standardized run were used to characterize postmatch fatigue 2 days prior (baseline) and at MD + 1 and MD + 2. Linear mixed models established the magnitude of change (effect size [ES]) between baseline, MD + 1, and MD + 2 for sleep and postmatch fatigue. Stepwise forward selection analysis ascertained the effect of match load on sleep and the effect of sleep on postmatch fatigue. Each analysis was combined with magnitude-based decisions. RESULTS Sleep characteristics and neuromuscular and perceptual postmatch fatigue were negatively affected at MD + 1 and MD + 2 (ES = small to very large). Kickoff and travel time had the greatest effect on sleep (ES = small). Wellness and soreness were influenced by sleep (fall-asleep time and fragmentation index) and collisions, respectively (ES = small). CONCLUSION Sleep quality and quantity were affected independently of the match load (ie, running activity) sustained, and changes in sleep marginally affected postmatch fatigue.
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Postmatch Recovery Practices Carried Out in Professional Football: A Survey of 56 Portuguese Professional Football Teams. Int J Sports Physiol Perform 2022; 17:748-754. [PMID: 35203052 DOI: 10.1123/ijspp.2021-0343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND In football (ie, soccer), the effectiveness of recovery practices is critical to maintain high levels of performance, prevent residual fatigue, and reduce injury risk. However, the recovery methods that professional football teams put in place up to 72 hours postmatch are widely unknown. PURPOSE This study aimed to characterize the postmatch recovery practices in Portuguese football teams in different postmatch periods and match locations. METHODS Portuguese football teams (total, N = 56; male: first league [n = 17], second league [n = 16], under-23 league [n = 12]; female: first league, n = 11) participated in the study. The practitioners in charge of recovery strategies in each team filled out the online questionnaire in the middle of the 2019-20 season. The questions focused on the type of recovery methods to be used at different times after home and away matches. RESULTS After home matches, stretching, electrostimulation, active recovery, and massage were used with higher frequency (P < .017) in later postmatch periods (ie, 12-24, and 24-72 h) compared with immediately postmatch. After away matches, several differences were found (P < .017) for the stretching, electrostimulation, active recovery, cold-water immersion, massage, nutrition, and sleep between postmatch periods. Regarding match location, stretching (r = .19), active recovery (r = .39), cold-water immersion (r = .46), and massage (r = .29) showed a higher frequency of use immediately after home matches. Conversely, the use of compression garments (r = .27) was higher immediately after away matches. CONCLUSIONS It was concluded that in professional football, recovery methods are not applied uniformly along postmatch periods and differ depending on the match location.
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Sleep during travel balances individual sleep needs. Nat Hum Behav 2022; 6:691-699. [PMID: 35210591 DOI: 10.1038/s41562-022-01291-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 01/06/2022] [Indexed: 11/08/2022]
Abstract
Travel is expected to have a deleterious effect on sleep, but an epidemiological-scale understanding of sleep changes associated with travel has been limited by a lack of large-scale data. Our global dataset of ~20,000 individuals and 3.17 million nights (~218,000 travel nights), while focused mainly on short, non-time-zone-crossing trips, reveals that travel has a balancing effect on sleep. Underslept individuals typically sleep more during travel than when at home, while individuals who average more than 7.5 hours of sleep at home typically sleep less when travelling. The difference in travel sleep quantity depends linearly on home sleep quantity and decreases as median sleep duration increases. On average, travel wake time advances to later hours on weekdays but earlier hours on weekends. Our study emphasizes the potential for consumer-grade wearable device data to explore how environment and behaviour affect sleep.
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Assessment of sleep disturbances with the athlete sleep screening Questionnaire in Chinese athletes. SPORTS MEDICINE AND HEALTH SCIENCE 2022; 4:133-139. [PMID: 35782277 PMCID: PMC9219323 DOI: 10.1016/j.smhs.2022.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/26/2022] [Accepted: 02/02/2022] [Indexed: 11/04/2022] Open
Abstract
This study investigated the factors that are associated with sleep disturbances among Chinese athletes. Sleep quality and associated factors were assessed by the Athlete Sleep Screening Questionnaire (ASSQ, n = 394, aged 18–32 years, 47.6% female). Sleep difficulty score (SDS) and level of sleep problem (none, mild, moderate, or severe) were used to classify participants' sleep quality. Categorical variables were analyzed by Chi-square or fisher's exact tests. An ordinal logistic regression analysis was used to explore factors with poor sleep (SDS ≥8). Approximately 14.2% of participants had moderate to severe sleep problem (SDS ≥8). Fifty-nine percent of the athletes reported sleep disturbance during travel, while 43.3% experienced daytime dysfunction when travelling for competition. No significant difference was found in the SDS category between gender, sports level and events. Athletes with evening chronotype were more likely to report worse sleep than athletes with morning and intermediate chronotype (OR, 2.25; 95%CI, 1.44–3.52; p < 0.001). For each additional year of age, there was an increase of odds ratio for poor sleep quality (OR, 1.15; 95%CI, 1.04–1.26; p = 0.004), while each additional year of training reduced the odds ratio (OR, 0.95; 95%CI, 0.91–0.99; p = 0.044). To improve sleep health in athletes, chronotype, travel-related issues, age and years of training should be taken into consideration. Sleep problems in athletes have been noticed in recent years. By using the clinically validated questionnaire (ASSQ) in Chinese athletes, we found that 14.2% of Chinese athletes had sleep disturbance. By using a multivariate ordinal logistic regression model, we were able to detect chronotype, travel-related issues, age and years of training were important influencing factors on poor sleep quality in Chinese athletes. The novel findings observed in this study shed new light on the current sleep health and possible factors affecting sleep disturbances of Chinese athletes and provide a new perspective for Chinese athletes to optimize their sleep strategies that improve sleep quality.
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Biochemical Markers and Wellness Status During a Congested Match Play Period in Elite Soccer Players. Int J Sports Physiol Perform 2022; 17:605-620. [PMID: 35038677 DOI: 10.1123/ijspp.2020-0914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 06/29/2021] [Accepted: 09/04/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To analyze biochemical markers, wellness status, and physical fitness in elite soccer players in relation to changes in training and match exposure during a congested period of match play. METHODS Fourteen elite soccer players were evaluated 3 times (T1, T2, and T3) over 12 weeks (T1-T2: 6-wk regular period of match play and T2-T3: 6-wk congested period of match play). Players performed vertical jump tests, repeated shuttle sprint ability test, and the Yo-Yo Intermittent Recovery Test at T1, T2, and T3. Plasma C-reactive protein, creatinine, and creatine kinase were analyzed at T1, T2, and T3. Wellness status was measured daily using the Hopper questionnaire (delayed onset of muscle soreness, stress, fatigue, and sleep quality). Training session rating of perceived exertion was also recorded on a daily basis. RESULTS A significant increase was found in stress, fatigue, delayed onset of muscle soreness scores, and Hopper index during the congested period (between T2 and T3) compared with the regular period (between T1 and T2) (.001 < P < .008, 0.8 < ES < 2.3). Between T2 and T3, significant relationships were found between the percentage variations (Δ%) of C-reactive protein, and Δ% of creatine kinase with the Hopper Index, and the Δ% of fatigue score. In addition, the Δ% of fatigue score and Δ% of delayed onset of muscle soreness score correlated with Δ% Yo-Yo Intermittent Recovery Test and Δ% best of repeated shuttle sprint ability test (.49 < r < P < .01). CONCLUSIONS An intensive period of congested match play significantly compromised elite soccer players' physical fitness and wellness status. Elite soccer players' wellness status reflects declines in physical fitness during this period while biochemical changes do not.
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Moen F, Vatn M, Olsen M, Haugan JA, Skalicka V. Sleep Characteristics in Esport Players and Associations With Game Performance: Residual Dynamic Structural Equation Modeling. Front Sports Act Living 2022; 3:697535. [PMID: 35098116 PMCID: PMC8794592 DOI: 10.3389/fspor.2021.697535] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 12/20/2021] [Indexed: 11/13/2022] Open
Abstract
The current study aimed to examine sleep characteristics of esport players and the stipulated effects of game performance on consecutive sleep characteristics using residual dynamic structural equation modeling (RDSEM). A sample of 27 Counterstrike players with a mean age of 18½ years participated in the current study. Sleep was detected over a period of 56 days with a Somnofy sleep monitor that utilizes an impulse radio ultra-wideband puls radar and Dopler technology, and weekly game performance was reported by the players. The results showed that esport players' sleep characteristics were in the lower levels of recommended guidelines and that sleep onset started later and sleep offset ended later in the morning compared with athletes from other traditional sports. The esport players displayed stable patterns in sleep onset, sleep offset, time in bed, sleep efficiency and non-REM respiration rates per minute (NREM RPM). On the between-person level, esport players with better game performance spent more time sleeping (r = 0.55) and scored lower on NREM RPM (r = -0.44). Unstandardized within-person cross-lagged paths showed that better game performance predicted subsequent earlier sleep offset. The within-level standardized estimates of the cross-lagged paths revealed that participants with better game performance spent subsequently more time in deep sleep (0.20), less time in light sleep (-0.14), less time in bed (-0.16), and displayed lower NREM RPM (-0.21), earlier sleep offset (-0.21), and onset (-0.09). The findings of better game performance being related to better sleep are discussed in terms of existing knowledge on how stress responses elicitated by poor performance might impact on non-REM respiration rates and sleep.
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Affiliation(s)
- Frode Moen
- Department of Education and Lifelong Learning, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science, Centre for Elite Sports Research, Norwegian University of Science and Technology, Trondheim, Norway
| | - Marte Vatn
- Department of Sociology and Political Science, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Maja Olsen
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science, Centre for Elite Sports Research, Norwegian University of Science and Technology, Trondheim, Norway
| | - Jan Arvid Haugan
- Department of Education and Lifelong Learning, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, Trondheim, Norway
| | - Vera Skalicka
- Department of Psychology, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, Trondheim, Norway
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The Sleep Behaviors of Elite Australian Rules Footballers Before and After Games During an Entire Season. Int J Sports Physiol Perform 2022; 17:932-942. [DOI: 10.1123/ijspp.2021-0417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/23/2021] [Accepted: 12/20/2021] [Indexed: 11/18/2022]
Abstract
Purpose: Most athletes sleep poorly around competition. The aim of this study was to examine sleep before/after games during an entire season in elite Australian Rules footballers (N = 37) from the same team. Methods: Sleep was monitored using activity monitors for 4 consecutive nights (beginning 2 nights before games) during 19 rounds of a season. Differences in sleep on the nights before/after games, and differences in sleep before/after games as a function of game time (day vs evening), location (local vs interstate), and outcome (win vs loss), were examined using linear mixed effects models. Results: Players fell asleep earlier (+1.9 h; P < .001), and woke up later (+1 h; P < .001) on the night before games compared with the night of games. Players obtained less sleep on the night of games than on the night before games (5.2 h vs 7.7 h; P < .001), and this reduction was exacerbated when games were played in the evening—after evening games, players obtained approximately 40 minutes less sleep than after day games (P < .001). Sleep duration on the nights before and after games was not affected by game location or game outcome, but players had later sleep onset (P < .001) and offset times (P < .001) on most nights when sleeping away from home. Conclusions: Elite footballers obtain good sleep on the night before games but obtain approximately 30% less sleep on the night of games. Given the role of sleep in recovery, it will be important to determine whether a reduction in sleep duration of this magnitude impairs recovery on the days following games.
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Silva AC, Amaral AS, Guerreiro R, Silva A, deMello MT, daSilva SG, Rechenchosky L, Rinaldi W. Elite soccer athlete's sleep: A literature review. APUNTS SPORTS MEDICINE 2022. [DOI: 10.1016/j.apunsm.2021.100373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Palucci Vieira LH, Lastella M, da Silva JP, Cesário T, Santinelli FB, Moretto GF, Santiago PRP, Barbieri FA. Low sleep quality and morningness-eveningness scale score may impair ball placement but not kicking velocity in youth academy soccer players. SCI MED FOOTBALL 2021; 6:528-538. [DOI: 10.1080/24733938.2021.2014550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Luiz H Palucci Vieira
- Human Movement Research Laboratory (MOVI-LAB), School of Sciences, Graduate Program in Movement Sciences, Department of Physical Education, São Paulo State University (UNESP), Bauru, Brazil
| | - Michele Lastella
- Appleton Institute for Behavioural Science, Central Queensland University, Adelaide, Australia
| | - João Pedro da Silva
- Human Movement Research Laboratory (MOVI-LAB), School of Sciences, Graduate Program in Movement Sciences, Department of Physical Education, São Paulo State University (UNESP), Bauru, Brazil
| | - Tiago Cesário
- Human Movement Research Laboratory (MOVI-LAB), School of Sciences, Graduate Program in Movement Sciences, Department of Physical Education, São Paulo State University (UNESP), Bauru, Brazil
| | - Felipe B Santinelli
- Human Movement Research Laboratory (MOVI-LAB), School of Sciences, Graduate Program in Movement Sciences, Department of Physical Education, São Paulo State University (UNESP), Bauru, Brazil
| | - Gabriel F Moretto
- Human Movement Research Laboratory (MOVI-LAB), School of Sciences, Graduate Program in Movement Sciences, Department of Physical Education, São Paulo State University (UNESP), Bauru, Brazil
| | - Paulo R. P. Santiago
- LaBioCoM Biomechanics and Motor Control Laboratory, EEFERP School of Physical Education and Sport of Ribeirão Preto, USP University of São Paulo, Campus Ribeirão Preto, Brazil
| | - Fabio A Barbieri
- Human Movement Research Laboratory (MOVI-LAB), School of Sciences, Graduate Program in Movement Sciences, Department of Physical Education, São Paulo State University (UNESP), Bauru, Brazil
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A Practical Approach to Monitoring Biomarkers of Inflammation and Muscle Damage in Youth Soccer Players During a 6-Month Training Cycle. J Hum Kinet 2021; 80:185-197. [PMID: 34868428 PMCID: PMC8607760 DOI: 10.2478/hukin-2021-0093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of the study was to determine the effects of a 6-month training cycle on muscle damage and inflammatory markers in youth male soccer players. Twenty-one soccer players were tested four times: at the beginning (T1) and immediately after the pre-season period (T2), in the middle (T3) and at the end of the competitive period (T4). Muscle damage and inflammatory markers were determined in blood taken 36 hours after the match. Throughout the training cycle significant increases (p < 0.05) of creatine kinase (T1: 254.4 U·L-1; T4: 304.2 U·L-1) and lactate dehydrogenase (T1: 382.8 U·L-1; T4: 453.2 U·L-1) activities were observed. Significant changes (p < 0.05) in platelet count (T1: 210.5·109·L-1; T4: 234.2·109·L-1), percentage of lymphocyte (T1: 39.80%; T4: 42.97%), monocyte (T1: 6.88%; T4: 9.99%) and granulocyte (T1: 53.32%; T4: 47.05%) as well as in granulocyte-to-lymphocyte (T1: 1.41; T4: 1.17) and lymphocyte-to-monocyte (T1: 6.21; T4: 4.46) ratios were noted. The correlation analysis revealed statistically significant relationships (p < 0.05) between: myoglobin and the percentage of leukocyte subpopulations and the granulocyte to lymphocyte ratio; lactate dehydrogenase and the percentage of monocyte; lactate and leukocyte count. In conclusion, the reported muscle damage and inflammatory markers in T3 and T4 indicate the need for fatigue status monitoring in youth soccer players, especially in the competitive period. Moreover granulocyte to lymphocyte and lymphocyte to monocyte ratios proved to be sensitive to fatigue changes and therefore can provide coaches and sport scientists with a broader perspective on the biochemical monitoring of training status in soccer players.
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Fernandes R, Brito JP, Vieira LHP, Martins AD, Clemente FM, Nobari H, Reis VM, Oliveira R. In-Season Internal Load and Wellness Variations in Professional Women Soccer Players: Comparisons between Playing Positions and Status. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:12817. [PMID: 34886543 PMCID: PMC8657164 DOI: 10.3390/ijerph182312817] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/29/2021] [Accepted: 12/02/2021] [Indexed: 11/16/2022]
Abstract
The internal intensity monitoring in soccer has been used more in recent years in men's football; however, in women's soccer, the existing literature is still scarce. The aims of this study were threefold: (a) to describe the weekly variations of training monotony, training strain and acute: chronic workload ratio through session Rated Perceived Exertion (s-RPE); (b) to describe weekly variations of Hooper Index [stress, fatigue, Delayed Onset Muscle Soreness (DOMS) and sleep]; and (c) to compare those variations between playing positions and player status. Nineteen players (24.1 ± 2.7 years) from a Portuguese BPI League professional team participated in this study. All variables were collected in a 10-week in-season period with three training sessions and one match per week during the 2019/20 season. Considering the overall team, the results showed that there were some associations between Hooper Index categories and s-RPE like stress or fatigue (0.693, p < 0.01), stress or DOMS (0.593, p < 0.01), stress or s-RPE (-0.516, p < 0.05) and fatigue or DOMS (0.688, p < 0.01). There were no differences between all parameters in playing positions or player status. In conclusion, the study revealed that higher levels of fatigue and DOMS occur concurrently with better nights of sleep. Moreover, any in-season variations concerning internal load and perceived wellness seems independent of position or status in outfield players. The data also showed that the higher the players' reported stress, the lower the observed s-RPE, thus possibly indicating a mutual interference of experienced stress levels on the assimilation of training intensity by elite women soccer players.
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Affiliation(s)
- Renato Fernandes
- Sports Science School of Rio Maior–Polytechnic Institute of Santarém, 2040-413 Rio Maior, Portugal; (J.P.B.); (A.D.M.)
- Life Quality Research Centre, 2040-413 Rio Maior, Portugal
- University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
| | - João Paulo Brito
- Sports Science School of Rio Maior–Polytechnic Institute of Santarém, 2040-413 Rio Maior, Portugal; (J.P.B.); (A.D.M.)
- Life Quality Research Centre, 2040-413 Rio Maior, Portugal
- Research Centre in Sport Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal
| | - Luiz H. Palucci Vieira
- Graduate Program in Movement Sciences, MOVI-LAB Human Movement Research Laboratory, Physical Education Department, School of Sciences, UNESP São Paulo State University, Bauru 17033-360, Brazil;
| | - Alexandre Duarte Martins
- Sports Science School of Rio Maior–Polytechnic Institute of Santarém, 2040-413 Rio Maior, Portugal; (J.P.B.); (A.D.M.)
- Life Quality Research Centre, 2040-413 Rio Maior, Portugal
- Comprehensive Health Research Centre (CHRC), Departamento de Desporto e Saúde, Escola de Saúde e Desenvolvimento Humano, Universidade de Évora, Largo dos Colegiais, 7004-516 Évora, Portugal
| | - Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal;
- Instituto de Telecomunicações, Delegação da Covilhã, 1049-001 Lisboa, Portugal
| | - Hadi Nobari
- Department of Physical Education and Sports, University of Granada, 18010 Granada, Spain;
- HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil 56199-11367, Iran
- Sports Scientist, Sepahan Football Club, Isfahan 81887-78473, Iran
| | - Victor Machado Reis
- University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal;
- Research Centre in Sport Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal
| | - Rafael Oliveira
- Sports Science School of Rio Maior–Polytechnic Institute of Santarém, 2040-413 Rio Maior, Portugal; (J.P.B.); (A.D.M.)
- Life Quality Research Centre, 2040-413 Rio Maior, Portugal
- Research Centre in Sport Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal
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Biggins M, Purtill H, Fowler P, Bender A, Sullivan KO, Samuels C, Cahalan R. Sleep, health, and well-being in elite athletes from different sports, before, during, and after international competition. PHYSICIAN SPORTSMED 2021; 49:429-437. [PMID: 33251907 DOI: 10.1080/00913847.2020.1850149] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objectives: Limited research has been conducted on sleep problems in elite athletes at international competition, and how this relates to their general health and well-being. Methods: Sixty-five elite international athletes (37 males, 28 females, 21.8 ± 2.1 years) from different sports completed validated sleep (Athlete Sleep Screening Questionnaire), health (Subjective Health Complaints Inventory) and well-being (Sports Profile of Mood States) questionnaires; 1 month pre-competition, at the end of international competition, and 1 month post-competition. Results: Twenty-three percent of the elite athletes were identified as having a moderate or severe clinically significant sleep problem during competition, with 82% reporting less than 8 h of sleep per night. Athletes with a moderate or severe clinically significant sleep problem during competition had significantly greater general health complaints (p = 0.002), mood disturbance (p = 0.001) and poorer sleep hygiene (p = 0.002). Swimmers had more sleep difficulty pre and during competition compared to athletics and soccer (p = 0.009). Conclusion: Sleep disturbance during international competition is common and associated with poorer health and lower mood. Swimmers may be more at risk of sleep difficulty pre and during competition compared to those competing in athletics and soccer. Sleep services may be required to support elite athletes at international competition.
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Affiliation(s)
- Michelle Biggins
- School of Allied Health, University of Limerick, Limerick, Ireland.,Health Research Institute, University of Limerick, Limerick, Ireland
| | - Helen Purtill
- Health Research Institute, University of Limerick, Limerick, Ireland.,Department of Mathematics and Statistics, University of Limerick, Ireland, Sports Spine Centre, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Peter Fowler
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
| | - Amy Bender
- Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - Kieran O Sullivan
- School of Allied Health, University of Limerick, Limerick, Ireland.,Health Research Institute, University of Limerick, Limerick, Ireland
| | - Charles Samuels
- Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada.,Cummings School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Roisin Cahalan
- School of Allied Health, University of Limerick, Limerick, Ireland.,Health Research Institute, University of Limerick, Limerick, Ireland
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Nobari H, Mainer-Pardos E, Denche Zamorano A, Bowman TG, Clemente FM, Pérez-Gómez J. Sprint Variables Are Associated with the Odds Ratios of Non-Contact Injuries in Professional Soccer Players. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph181910417. [PMID: 34639719 PMCID: PMC8508411 DOI: 10.3390/ijerph181910417] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 11/16/2022]
Abstract
Significant evidence has emerged that a high volume of sprinting during training is associated with an increased risk of non-contact injuries in professional soccer players. Training load has been reported as a modifiable risk factor for successive injury in soccer. Sprint workload measures and non-contact injuries were recorded weekly in twenty-one professional soccer players over a one season period. Odds ratio (OR) and relative risk (RR) were calculated based on the weeks of high and low load of total distance (TD), high-speed distance (HSD), sprint distance (SPD). and repeated sprints (RS). The Poisson distribution estimated the interval time between the last injury and the new injury. The weeks with high-load levels increased the risk of non-contact injury associated with TD (OR: 4.1; RR: 2.4), HSD (OR: 4.6; RR: 2.6), SPD (OR: 6.9; RR: 3.7), and RS (OR: 4.3; RR: 2.7). The time between injuries was significantly longer in weeks of low-load in TD (rate ratio time (RRT) 1.5 vs. 4.2), HSD (RRT: 1.6 vs. 4.6), and SPD (RRT: 1.7 vs. 7.7) compared to weeks of high-load. The findings highlight an increased risk of non-contact injuries during high weekly sprint workloads. Possibly, TD, HSD, and SPD measured via a wearable inertial measurement unit could be modeled to track training and to reduce non-contact injuries. Finally, the interval time between the last injury and the new injury at the high-load is shorter than the low-load.
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Affiliation(s)
- Hadi Nobari
- Department of Physical Education and Sports, University of Granada, 18010 Granada, Spain
- HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain; (A.D.Z.); (J.P.-G.)
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil 56199-11367, Iran
- Sports Scientist, Sepahan Football Club, Isfahan 81887-78473, Iran
- Correspondence: (H.N.); (E.M.-P.)
| | - Elena Mainer-Pardos
- Health Sciences Faculty, Universidad San Jorge, Autov A23 km 299, 50830 Villanueva de Gállego, Spain
- Correspondence: (H.N.); (E.M.-P.)
| | - Angel Denche Zamorano
- HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain; (A.D.Z.); (J.P.-G.)
| | - Thomas G. Bowman
- Department of Athletic Training, College of Health Sciences, University of Lynchburg, Lynchburg, VA 24501, USA;
| | - Filipe Manuel Clemente
- Escola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal;
- Instituto de Telecomunicações, Delegação da Covilhã, 1049-001 Lisboa, Portugal
| | - Jorge Pérez-Gómez
- HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain; (A.D.Z.); (J.P.-G.)
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Moen F, Olsen M, Halmøy G, Hrozanova M. Variations in Elite Female Soccer Players' Sleep, and Associations With Perceived Fatigue and Soccer Games. Front Sports Act Living 2021; 3:694537. [PMID: 34514385 PMCID: PMC8424084 DOI: 10.3389/fspor.2021.694537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/30/2021] [Indexed: 11/24/2022] Open
Abstract
The current study investigated the associations between female perceived fatigue of elite soccer players and their sleep, and the associations between the sleep of players and soccer games. The sample included 29 female elite soccer players from the Norwegian national soccer team with a mean age of ~26 years. Perceived fatigue and sleep were monitored over a period of 124 consecutive days. In this period, 12.8 ± 3.9 soccer games per player took place. Sleep was monitored with an unobtrusive impulse radio ultra-wideband Doppler radar (Somnofy). Perceived fatigue was based on a self-report mobile phone application that detected daily experienced fatigue. Multilevel analyses of day-to-day associations showed that, first, increased perceived fatigue was associated with increased time in bed (3.6 ± 1.8 min, p = 0.037) and deep sleep (1.2 ± 0.6 min, p = 0.007). Increased rapid eye movement (REM) sleep was associated with subsequently decreased perceived fatigue (−0.21 ± 0.08 arbitrary units [AU], p = 0.008), and increased respiration rate in non-REM sleep was associated with subsequently increased fatigue (0.27 ± 0.09 AU, p = 0.002). Second, game night was associated with reduced time in bed (−1.0 h ± 8.4 min, p = <0.001), total sleep time (−55.2 ± 6.6 min, p = <0.001), time in sleep stages (light: −27.0 ± 5.4 min, p = <0.001; deep: −3.6 ± 1.2 min, p = 0.001; REM: −21.0 ± 3.0 min, p = <0.001), longer sleep-onset latency (3.0 ± 1.2 min, p = 0.013), and increased respiration rate in non-REM sleep (0.32 ± 0.08 respirations per min, p = <0.001), compared to the night before the game. The present findings show that deep and REM sleep and respiration rate in non-REM sleep are the key indicators of perceived fatigue in female elite soccer players. Moreover, sleep is disrupted during game night, likely due to the high physical and mental loads experienced during soccer games. Sleep normalizes during the first and second night after soccer games, likely preventing further negative performance-related consequences.
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Affiliation(s)
- Frode Moen
- Department of Education and Lifelong Learning, Faculty of Social and Educational Sciences, Norwegian University of Science and Technology, Trondheim, Norway.,Centre for Elite Sports Research, Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science, Norwegian University of Science and Technology, Trondheim, Norway
| | - Maja Olsen
- Centre for Elite Sports Research, Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science, Norwegian University of Science and Technology, Trondheim, Norway
| | | | - Maria Hrozanova
- Centre for Elite Sports Research, Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science, Norwegian University of Science and Technology, Trondheim, Norway
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How injury registration and preseason assessment are being delivered: An international survey of sports physical therapists. Phys Ther Sport 2021; 53:151-157. [PMID: 34521585 DOI: 10.1016/j.ptsp.2021.08.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 08/26/2021] [Accepted: 08/31/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To identify the role of sports physical therapists (PT) in the organization of injury registration and preseason assessment, applied in athletic organizations and sports teams of different gender and level world-wide. DESIGN cross-sectional study. SETTING LimeSurvey platform. PARTICIPANTS Sports PTs working with athletes invited through International Federation of Sports Physical Therapy. MAIN OUTCOME MEASURES injury registration and athlete's screening. RESULTS 414 sports PTs participated in this international survey (mean age of 37.66 (SD = 9.38) years). 340 participants indicated that the PT as the responsible for injury registration. Barriers to properly register injury throughout the season were indicated by 157 sports PT and 86 (54.77%) indicated a lack of time on their routine as the main factor. 93 participants (30.09%) indicated that they customize the prevention program based on the preseason assessment. Sports PTs who reported not performing a preseason assessment (92 participants - 22.22%) mainly indicated this to be consequence of lack of structure in the organization (44 participants - 47.82%). CONCLUSION The majority of the sports PTs participate on injury registration and perform preseason assessment in athletes. However, lack of time in their routine and structure in the organization were recognized as the most important barriers to organize these properly.
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de Blasiis K, Joncheray H, Elefteriou J, Lesenne C, Nedelec M. Sleep-Wake Behavior in Elite Athletes: A Mixed-Method Approach. Front Psychol 2021; 12:658427. [PMID: 34413808 PMCID: PMC8368439 DOI: 10.3389/fpsyg.2021.658427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 07/14/2021] [Indexed: 11/25/2022] Open
Abstract
Purpose Using a mixed-method approach, this investigation aimed to examine athletes’ sleeping patterns along with the socio-physiological acute and chronic stressors affecting their sleep. Methods Fifteen elite athletes (Mage = 21.7 years; SD = 2.2) were monitored daily during a typical in-season training period (20 ± 1 days) and completed individual semi-structured interviews. Their sleep was analyzed using actigraphy and sleep diaries. A content analysis method was used to assess qualitative interviews. Results Three factors influencing sleep emerged from the qualitative interview analyses, i.e., sleep environment, training and study requirements. Half the athletes (8/15) complained about their sleeping environment with noise and/or bedroom temperature and/or mattress quality and/or light exposure presented as an issue. “Complainers” notably exhibited impaired (p < 0.05) sleep efficiency and wake after sleep onset compared with “non-complainers.” Daily training load showed correlations (p < 0.05) with wake after sleep onset and sleep onset latency. “Student athletes” exhibited later bedtime and earlier wake-up time compared with “non-student athletes,” leading to a reduced total sleep time (6:50 ± 1:13 vs. 7:06 ± 0:53; p < 0.05; d = 0.20). Conclusion An individualized assessment of sleep using actigraphy and interviews, with consideration to various socio-physiological factors, is recommended. Individualized sleep interventions with consideration to physiological (e.g., training load), behavioral (e.g., screen use) and environmental factors (e.g., room temperature, noise, mattress), can then be provided to each athlete.
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Affiliation(s)
- Kévin de Blasiis
- Laboratory Sport, Expertise and Performance (EA 7370), French National Institute of Sport (INSEP), Paris, France
| | - Hélène Joncheray
- Laboratory Sport, Expertise and Performance (EA 7370), French National Institute of Sport (INSEP), Paris, France
| | - Julia Elefteriou
- Laboratory Sport, Expertise and Performance (EA 7370), French National Institute of Sport (INSEP), Paris, France
| | - Chloé Lesenne
- Laboratory Sport, Expertise and Performance (EA 7370), French National Institute of Sport (INSEP), Paris, France
| | - Mathieu Nedelec
- Laboratory Sport, Expertise and Performance (EA 7370), French National Institute of Sport (INSEP), Paris, France
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Chu Y, Lee K, Kim EI. Why Victimized Employees Become Less Engaged at Work: An Integrated Model for Testing the Mediating Role of Sleep Quality. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18168468. [PMID: 34444217 PMCID: PMC8393796 DOI: 10.3390/ijerph18168468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/07/2021] [Accepted: 08/08/2021] [Indexed: 11/16/2022]
Abstract
Recent studies have shown that workplace victimization is negatively related to work engagement. The explanations for the underlying mechanisms, however, are still in a nascent stage. Drawing on the limited resource theory of self-regulation and research on workplace aggression and sleep, we develop and test an integrated model, which explains that victimized employees may have impaired sleep quality and thus have less energy and be less likely to be engaged in their work. The results of logistic regression and structural equation modeling analyses of large-scale survey data collected from 90,272 employees across the years 2010, 2011, 2014, and 2017, indicate that workplace victimization is negatively related to sleep quality and subsequent workplace engagement, even controlling for alternative explanations-job insecurity and basic psychological needs for competence, autonomy, and relatedness. Our findings advance our knowledge on the detrimental consequences of workplace victimization and suggest that, while unmet basic psychological needs matter, impaired sleep quality is one reason why victimized employees find it difficult to engage at work.
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