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Helwig J, Diels J, Röll M, Mahler H, Gollhofer A, Roecker K, Willwacher S. Relationships between External, Wearable Sensor-Based, and Internal Parameters: A Systematic Review. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23020827. [PMID: 36679623 PMCID: PMC9864675 DOI: 10.3390/s23020827] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 05/27/2023]
Abstract
Micro electro-mechanical systems (MEMS) are used to record training and match play of intermittent team sport athletes. Paired with estimates of internal responses or adaptations to exercise, practitioners gain insight into players' dose-response relationship which facilitates the prescription of the training stimuli to optimize performance, prevent injuries, and to guide rehabilitation processes. A systematic review on the relationship between external, wearable-based, and internal parameters in team sport athletes, compliant with the PRISMA guidelines, was conducted. The literature research was performed from earliest record to 1 September 2020 using the databases PubMed, Web of Science, CINAHL, and SportDISCUS. A total of 66 full-text articles were reviewed encompassing 1541 athletes. About 109 different relationships between variables have been reviewed. The most investigated relationship across sports was found between (session) rating of perceived exertion ((session-)RPE) and PlayerLoad™ (PL) with, predominantly, moderate to strong associations (r = 0.49-0.84). Relationships between internal parameters and highly dynamic, anaerobic movements were heterogenous. Relationships between average heart rate (HR), Edward's and Banister's training impulse (TRIMP) seem to be reflected in parameters of overall activity such as PL and TD for running-intensive team sports. PL may further be suitable to estimate the overall subjective perception. To identify high fine-structured loading-relative to a certain type of sport-more specific measures and devices are needed. Individualization of parameters could be helpful to enhance practicality.
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Affiliation(s)
- Janina Helwig
- Institute of Sport and Sport Science, Albert-Ludwigs University Freiburg, 79117 Freiburg, Germany
- Institute for Advanced Biomechanics and Motion Studies, Offenburg University, Max-Planck Straße 1, 77656 Offenburg, Germany
| | - Janik Diels
- Institute of Sport and Sport Science, Albert-Ludwigs University Freiburg, 79117 Freiburg, Germany
| | - Mareike Röll
- Institute of Sport and Sport Science, Albert-Ludwigs University Freiburg, 79117 Freiburg, Germany
| | - Hubert Mahler
- Institute of Sport and Sport Science, Albert-Ludwigs University Freiburg, 79117 Freiburg, Germany
- Sport-Club Freiburg e.V., Achim-Stocker-Str. 1, 79108 Freiburg, Germany
| | - Albert Gollhofer
- Institute of Sport and Sport Science, Albert-Ludwigs University Freiburg, 79117 Freiburg, Germany
| | - Kai Roecker
- Institute of Sport and Sport Science, Albert-Ludwigs University Freiburg, 79117 Freiburg, Germany
- Institute for Applied Health Promotion and Exercise Medicine, Furtwangen University, 78120 Furtwangen, Germany
| | - Steffen Willwacher
- Institute for Advanced Biomechanics and Motion Studies, Offenburg University, Max-Planck Straße 1, 77656 Offenburg, Germany
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Evaluation of Water Intake in Spanish Adolescent Soccer Players during a Competition. J Hum Kinet 2022; 83:59-66. [PMID: 36157942 PMCID: PMC9465763 DOI: 10.2478/hukin-2022-0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
An optimal state of hydration is essential to maintaining health. The objective of this cross-sectional study was to evaluate the water intake of adolescents aged 12 to 16 years and their hydration level during an official soccer match. Three hundred and six players participated in the study (N = 306). Their water intake was recorded and the level of hydration was evaluated using the density of urine as an indicator. Weight measurements were made before and after the match. Water intake control, urine collection and analysis, and the recording of minutes played were carried out after the match. The average weight loss was 746.2 g (SD: 474.07; p < 0.001), with 36.5% with less than 1% loss and 23.3% with more than 2% loss. The mean volume of water ingested was 229.35 ml (SD: 211.11) and a significant correlation was observed between minutes of activity (ρ-value = 0.206; p < 0.001), environmental humidity (ρ-value = - 0.281; p < 0.001), and temperature (ρ-value = 0.200; p < 0.001). The sweat rate was 0.69 l/h (SD: 0.56) and it was significantly associated with playing time (ρ-value = -0.276; p < 0.001). The mean urine density was 1.019 (SD: 0.007), with 64.9% of youth athletes showing dehydration (≥ 1.020). An association was observed between dehydration and activity time (U- value = 4.124; p < 0.001). Approximately 10% of the participants stated that they had not drunk any water during the match. In conclusion, it is necessary to establish individual hydration guidelines based on personal, environmental and activity-related factors, as well as establish a minimum volume of fluids to consume.
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Habitual Total Drinking Fluid Intake Did Not Affect Plasma Hydration Biomarkers among Young Male Athletes in Beijing, China: A Cross-Sectional Study. Nutrients 2022; 14:nu14112311. [PMID: 35684112 PMCID: PMC9182946 DOI: 10.3390/nu14112311] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/26/2022] [Accepted: 05/28/2022] [Indexed: 11/17/2022] Open
Abstract
The purposes of this study were to explore the drinking patterns, and urinary and plasma hydration biomarkers of young adults with different levels of habitual total drinking fluid intake. A cross-sectional study was conducted among 111 young male athletes in Beijing, China. Total drinking fluids and water from food were assessed by a 7-day, 24-h fluid intake questionnaire and the duplicate portion method, respectively. The osmolality and electrolyte concentrations of the 24-h urine and fasting blood samples were tested. Differences in groups LD1 (low drinker), LD2, HD1, and HD2 (high drinker), divided according to the quartiles of total drinking fluids, were compared using one-way ANOVA, Kruskal−Wallis H-tests, and chi-squared tests. A total of 109 subjects completed the study. The HD2 group had greater amounts of TWI (total water intake) and higher and lower contributions of total drinking fluids and water from food to TWI, respectively, than the LD1, LD2, and HD1 groups (p < 0.05), but the amounts of water from food did not differ significantly among the four groups (all p > 0.05). Participants in the HD2 group had higher amounts of water than participants in the LD1, LD2, and HD1 groups (p < 0.05); SSBs were the second top contributor of total drinking fluids, ranging from 24.0% to 31.8%. The percentage of subjects in optimal hydration status increased from 11.8% in the LD1 group to 58.8% in the HD2 group (p < 0.05). The HD2 and HD1 groups had 212−227 higher volumes of urine than the LD1 and LD2 groups (p < 0.05). No significant differences were found in the plasma biomarkers (p > 0.05), with the exception of higher concentrations of K in the HD1 group than in the LD1 group (p < 0.05). Subjects with higher amounts of total drinking fluids had better hydration status than those with lower total drinking fluids, but not better drinking patterns. Habitual total drinking fluids did not affect the plasma biomarkers.
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Fernandes H. Hydration analysis and recommendations for elite soccer players. Sci Sports 2022. [DOI: 10.1016/j.scispo.2021.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Martín-Payo R, Fernández-Álvarez MDM, Zabaleta-del-Olmo E, García-García R, González-Méndez X, Carrasco-Santos S. Feasibility Study of an Educational Intervention to Improve Water Intake in Adolescent Soccer Players: A Two-Arm, Non-Randomized Controlled Cluster Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031339. [PMID: 33540715 PMCID: PMC7908608 DOI: 10.3390/ijerph18031339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/29/2021] [Accepted: 01/30/2021] [Indexed: 11/16/2022]
Abstract
This study aimed to assess the feasibility of an educational intervention on hydration behavior in adolescent soccer players. A pilot study of a two-arm, non-randomized controlled cluster trial was conducted. A total of 316 players aged 13-16 agreed to participate. The response variables were the players' participation in the intervention, their perception of the knowledge acquired, the usefulness and the overall assessment of the intervention. Hydration patterns and acquisition of knowledge on hydration behavior were also assessed. The intervention involved two elements: posters and a web app. A total of 259 adolescents completed the study (intervention group (IG) = 131; control group (CG) = 128). 80.6% of the players responded to the survey assessing the feasibility of the intervention. The mean number of correct answers regarding behavior was significantly higher in the IG (3.54; SD = 1.162) than in the CG (2.64; SD = 1.174) (p < 0.001). The water consumption pattern at all the clubs was ad libitum. Of the players, 10% did not drink any water at all during the game. In conclusion, this intervention has been shown to be feasible for implementation with adolescent soccer players. It suggests that hydration guidelines should be informed by personal factors and that ad libitum water consumption should be avoided.
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Affiliation(s)
- Rubén Martín-Payo
- Faculty of Medicine and Health Sciences, University of Oviedo, Campus del Cristo s/n, 33006 Oviedo, Spain;
- PRECAM Research Team, Health Research Institute of the Principality of Asturias, Avenida Roma s/n, 33011 Oviedo, Spain; (R.G.-G.); (X.G.-M.); (S.C.-S.)
| | - María del Mar Fernández-Álvarez
- Faculty of Medicine and Health Sciences, University of Oviedo, Campus del Cristo s/n, 33006 Oviedo, Spain;
- PRECAM Research Team, Health Research Institute of the Principality of Asturias, Avenida Roma s/n, 33011 Oviedo, Spain; (R.G.-G.); (X.G.-M.); (S.C.-S.)
- Correspondence:
| | - Edurne Zabaleta-del-Olmo
- Fundació Institut Universitari per a la recerca a l’Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), 08007 Barcelona, Spain;
- Gerència Territorial de Barcelona, Institut Català de la Salut, 08007 Barcelona, Spain
- Nursing Department, Nursing Faculty, Universitat de Girona, 17004 Girona, Spain
- Campus Bellaterra, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain
| | - Rebeca García-García
- PRECAM Research Team, Health Research Institute of the Principality of Asturias, Avenida Roma s/n, 33011 Oviedo, Spain; (R.G.-G.); (X.G.-M.); (S.C.-S.)
- Hospital Universitario Central de Asturias, Avenida Roma s/n, 33011 Oviedo, Spain
| | - Xana González-Méndez
- PRECAM Research Team, Health Research Institute of the Principality of Asturias, Avenida Roma s/n, 33011 Oviedo, Spain; (R.G.-G.); (X.G.-M.); (S.C.-S.)
- Hospital Universitario San Agustín de Avilés, Camino de Heros 6, 33401 Avilés, Spain
| | - Sergio Carrasco-Santos
- PRECAM Research Team, Health Research Institute of the Principality of Asturias, Avenida Roma s/n, 33011 Oviedo, Spain; (R.G.-G.); (X.G.-M.); (S.C.-S.)
- Hospital Universitario San Agustín de Avilés, Camino de Heros 6, 33401 Avilés, Spain
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Effects of Field Position on Fluid Balance and Electrolyte Losses in Collegiate Women's Soccer Players. ACTA ACUST UNITED AC 2020; 56:medicina56100502. [PMID: 32987967 PMCID: PMC7601799 DOI: 10.3390/medicina56100502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 11/17/2022]
Abstract
Background and objectives: Research investigating hydration strategies specialized for women’s soccer players is limited, despite the growth in the sport. The purpose of this study was to determine the effects of fluid balance and electrolyte losses in collegiate women’s soccer players. Materials and Methods: Eighteen NCAA Division I women’s soccer players were recruited (age: 19.2 ± 1.0 yr; weight: 68.5 ± 9.0 kg, and height: 168.4 ± 6.7 cm; mean ± SD), including: 3 forwards (FW), 7 mid-fielders (MD), 5 defenders (DF), and 3 goalkeepers (GK). Players practiced outdoor during spring off-season training camp for a total 14 practices (WBGT: 18.3 ± 3.1 °C). The main outcome measures included body mass change (BMC), sweat rate, urine and sweat electrolyte concentrations, and fluid intake. Results: Results were analyzed for comparison between low (LOW; 16.2 ± 2.6° C, n = 7) and moderate risk environments for hyperthermia (MOD; 20.5 ± 1.5 °C, n = 7) as well as by field position. The majority (54%) of players were in a hypohydrated state prior to practice. Overall, 26.7% of players had a %BMC greater than 0%, 71.4% of players had a %BMC less than −2%, and 1.9% of players had a %BMC greater than −2% (all MD position). Mean %BMC and sweat rate in all environmental conditions were −0.4 ± 0.4 kg (−0.5 ± 0.6% body mass) and 1.03 ± 0.21 mg·cm−2·min−1, respectively. In the MOD environment, players exhibited a greater sweat rate (1.07 ± 0.22 mg·cm−2·min−1) compared to LOW (0.99 ± 0.22 mg·cm−2·min−1; p = 0.02). By position, DF had a greater total fluid intake and a lower %BMC compared to FW, MD, and GK (all p < 0.001). FW had a greater sweat sodium (Na+) (51.4 ± 9.8 mmol·L−1), whereas GK had the lowest sweat sodium (Na+) (30.9 ± 3.9 mmol·L−1). Conclusions: Hydration strategies should target pre-practice to ensure players are adequately hydrated. Environments deemed to be of moderate risk of hyperthermia significantly elevated the sweat rate but did not influence fluid intake and hydration status compared to low-risk environments. Given the differences in fluid balance and sweat responses, recommendations should be issued relative to soccer position.
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Stojanović E, Stojiljković N, Stanković R, Scanlan AT, Dalbo VJ, Milanović Z. Game format alters the physiological and activity demands encountered during small-sided football games in recreational players. J Exerc Sci Fit 2020; 19:40-46. [PMID: 32922462 PMCID: PMC7475126 DOI: 10.1016/j.jesf.2020.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 02/06/2023] Open
Abstract
Background Conditioning in the form of football small-sided games (SSG) is being increasingly utilized as a health-promoting and performance-enhancing activity. Objective The aim of this study was to quantify and compare the physiological responses and activity demands encountered during 3-a-side, 4-a-side, and 5-a-side football SSG in recreational players. Method Heart rate, blood lactate (BLa), rating of perceived exertion (RPE) and activity demands were measured across 2 × 20-min football sessions played on a 40 × 20-m pitch in 12 recreationally active college students. Data were collected over a period of two weeks using a repeated-measures crossover design. Results Mean heart rate was higher (moderate) during 5-a-side than 4-a-side (p = 0.02) and 3-a-side SSG (p < 0.001). BLa tended to be higher (small) in 3-a-side compared to 4-a-side (p = 0.12) and 5-a-side SSG (p = 0.46). The total distance covered was lower (large) during 5-a-side than 4-a-side SSG (p = 0.02), while the total number of accelerations (p = 0.01) and decelerations (p = 0.02) were higher (large) during 5-a-side than 4-a-side SSG. Conclusion These data suggest: 1) 5-a-side SSG require a greater intermittent workload and exacerbated HR responses; 2) 4-a-side SSG require more sustained activity (distance); and 3) 3-a-side SSG result in higher BLa compared to other SSG formats. The observed intermittent workload and exacerbated HR response in 5-a-side SSG were likely due to greater turnover rates with more frequent interceptions. Sustained activity in 4-a-side SSG might be underpinned by format-specific structures permitting optimal team work, while isolated guarding of players in 3-a-side SSG may have exacerbated BLa responses.
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Affiliation(s)
- Emilija Stojanović
- Faculty of Sport and Physical Education, University of Niš, Niš, Serbia.,Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | | | - Ratko Stanković
- Faculty of Sport and Physical Education, University of Niš, Niš, Serbia
| | - Aaron T Scanlan
- Human Exercise and Training Laboratory, School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Australia
| | - Vincent J Dalbo
- Human Exercise and Training Laboratory, School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, Australia
| | - Zoran Milanović
- Faculty of Sport and Physical Education, University of Niš, Niš, Serbia.,Science and Research Centre Koper, Institute for Kinesiology Research, Koper, Slovenia
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Physiological responses and activity demands remain consistent irrespective of team size in recreational handball. Biol Sport 2020; 37:69-78. [PMID: 32205912 PMCID: PMC7075223 DOI: 10.5114/biolsport.2020.92516] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/09/2019] [Accepted: 01/02/2020] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was to examine the impact of team size on acute physiological, perceptual, and activity demands of recreational handball to provide a better understanding for the potential prescription of recreational handball to achieve health benefits. Active, male college students (N=22) completed 3-, 4-, and 5-a-side handball game formats across three separate sessions following a repeated-measures, crossover design. Heart rate (HR), blood lactate concentration (BLa), rating of perceived exertion (RPE), distance covered, and frequency of accelerations/decelerations were monitored during games. Each game format elicited vigorous intensities with a mean HR in the range 82-85%HRmax and post-game BLa in the range 3.9-4.4 mmol·L-1. No significant differences (P>0.05) in absolute (ηp2=0.40), relative mean HR (ηp2=0.43), BLa (ηp2=0.16), total distance (ηp2=0.32), total accelerations (ηp2=0.23), or total decelerations (ηp2=0.23) were observed between game formats. A significant effect was observed for RPE (ηp2=0.51), where 3-a-side games elicited a higher RPE than 5-a-side games (P=0.03, large). Modifying player number has a negligible effect on the physiological and activity demands encountered during recreational handball games. Recreational handball consisting of 3-5 players imposes similar intermittent workloads, resulting in vigorous physiological responses concomitant with those recommended for overall health improvements as part of regular training.
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Klimešová I, Krejčí J, Botek M, Neuls F, Sládečková B, Valenta M, Panská S. Hydration status and the differences between perceived beverage consumption and objective hydration status indicator in the Czech elite deaf athletes. ACTA GYMNICA 2019. [DOI: 10.5507/ag.2019.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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