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Elghoul Y, Ben Kahla A, Bahri F, Trabelsi K, Chtourou H, Frikha M, Aziz AR. Effects of fasting during Ramadan month on soccer-specific technical performance, cognitive function, and perceptions in soccer players. J Sports Sci 2024; 42:646-654. [PMID: 38771259 DOI: 10.1080/02640414.2024.2357467] [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: 12/29/2023] [Accepted: 05/13/2024] [Indexed: 05/22/2024]
Abstract
We aimed to examine the effects of Ramadan fasting (RF) and high-intensity short-term maximal performance on elite soccer players' shooting accuracy, executive function (EF), and perceptions. Sixteen Muslim elite players fasting during Ramadan underwent assessments before (BR), during (DR), and after Ramadan (AR). Soccer-specific technical performance was evaluated using the Loughborough Soccer Shooting Test (LSST) before and after a 5-metre shuttle run test (5mSRT), conducted at the same time-of-day (17:00 h). Performance metrics recorded included higher distance (HD), total distance (TD), and fatigue index (FI). RPE after a 5-min warm-up and each repetition of the 5mSRT were obtained, and the mean RPE score was calculated. Trail Making Test (TMT Parts A and B) were used after the warm-up and the 5mSRT. Perceived difficulty (PD) was assessed following the LSST. HD, TD, and FI were not affected by RF (p > 0.05). DR, RPE and accuracy scores in the LSST were significantly lower after the 5mSRT compared to BR (1.29 vs. 1.24 AU; 1.29 vs. 1.24, respectively). In conclusion, RF had no adverse effects on physical performance. However, when combined with high-intensity running sessions, RF may impact accuracy and PD, and these adverse effects seem to have been translated into EF.
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Affiliation(s)
- Yousri Elghoul
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia
| | - Ahmed Ben Kahla
- Education, Motor Skills, Sports and Health (EM2S), Sfax, Tunisia
| | - Fatma Bahri
- Education, Motor Skills, Sports and Health (EM2S), Sfax, Tunisia
| | - Khaled Trabelsi
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia
| | - Hamdi Chtourou
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia
| | - Mohamed Frikha
- Department of Physical Education, College of Education, King Faisal University, Al-Hufŭf, Saudi Arabia
| | - Abdul Rashid Aziz
- Sport Science and Medicine, Singapore Sport Institute, Sport Singapore, Singapore
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Özbay S, Ulupınar S, Gençoğlu C, Ouergui I, Öget F, Yılmaz HH, Kishalı NF, Kıyıcı F, Asan S, Uçan İ, Ardigò LP. Effects of Ramadan intermittent fasting on performance, physiological responses, and bioenergetic pathway contributions during repeated sprint exercise. Front Nutr 2024; 11:1322128. [PMID: 38406182 PMCID: PMC10884246 DOI: 10.3389/fnut.2024.1322128] [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: 10/18/2023] [Accepted: 01/17/2024] [Indexed: 02/27/2024] Open
Abstract
Introduction This investigation aims to elucidate the impact of Ramadan intermittent fasting on performance, physiological responses, and bioenergetic pathway contributions during repeated sprints. Methods Fourteen active male Muslim athletes (age = 22.4 ± 1.8 years, body weight = 69.5 ± 3.8 kg, height = 176 ± 5.1 cm) executed a repeated sprint protocol, consisting of ten 20-meter sprints with 15-s passive recovery intervals, during both fasting and non-fasting conditions. The fasting session was conducted after a 12-14 h fast following Sahur (the pre-dawn meal during Ramadan). In contrast, the non-fasting session occurred before the Ramadan fasting period began, during the same hours of the day, at a time when fasting was not yet required for the athletes. Bioenergetic pathway contributions during repeated sprints were quantified using the PCr-LA-O2 method. Results The mean sprint time during fasting sessions was 3.4 ± 0.3 s compared to 3.3 ± 0.2 s in non-fasting sessions, indicating a trend approaching the threshold of significance for slower times in the fasted state (p = 0.052, effect size (ES) = 0.34). In terms of bioenergetic contributions, the total metabolic energy expenditure (TEE) was slightly lower during fasting sessions (236.5 ± 22 kJ) compared to non-fasting sessions (245.2 ± 21.7 kJ), but this difference was not statistically significant (p = 0.102, ES = 0.40). Similarly, metabolic energy expenditure per sprint was 23.7 ± 2.2 kJ in fasting conditions compared to 24.5 ± 2.2 kJ in non-fasting conditions (p = 0.106, ES = 0.35). The oxidative energy contribution did not differ significantly between fasting (34.2 ± 4.1 kJ) and non-fasting conditions (34.2 ± 4.1 vs. 35.5 ± 5.2 kJ; p = 0.238, ES = 0.28). Similarly, lactic (60.4 ± 7.6 vs. 59.2 ± 8.3 kJ; p = 0.484, ES = 0.15); and alactic (149.3 ± 19.9 vs. 143 ± 21.5 kJ; p = 0.137, ES = 0.30) energy contributions showed no significant differences between the fasting and non-fasting sessions. The percentage of performance decrement (Pdec) and the percentage contributions of oxidative, lactic, and alactic pathways to the total energy expenditure did not differ significantly between the fasting and non-fasting conditions, indicating a similar bioenergetic profile across both conditions. Conclusion The present findings indicate no significant differences in performance metrics and metabolic outcomes between fasted and non-fasted states. Future assessments with longer duration and higher intensity protocols may provide further insights.
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Affiliation(s)
- Serhat Özbay
- Faculty of Sports Sciences, Erzurum Technical University, Erzurum, Türkiye
| | - Süleyman Ulupınar
- Faculty of Sports Sciences, Erzurum Technical University, Erzurum, Türkiye
| | - Cebrail Gençoğlu
- Faculty of Sports Sciences, Erzurum Technical University, Erzurum, Türkiye
| | - Ibrahim Ouergui
- High Institute of Sport and Physical Education of Kef, University of Jendouba, El Kef, Tunisia
- Research Unit, Sports Science, Health and Movement, University of Jendouba, El Kef, Tunisia
| | - Furkan Öget
- Faculty of Sports Sciences, Erzurum Technical University, Erzurum, Türkiye
| | | | | | - Fatih Kıyıcı
- Faculty of Sports Sciences, Atatürk University, Erzurum, Türkiye
| | - Selim Asan
- Faculty of Sports Sciences, Erzurum Technical University, Erzurum, Türkiye
| | - İzzet Uçan
- Faculty of Sports Sciences, Atatürk University, Erzurum, Türkiye
| | - Luca Paolo Ardigò
- Department of Teacher Education, NLA University College, Oslo, Norway
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Kuo TS, Chu LC, Kao PL, Shih CL. The Effect of Job Satisfaction on Psychological Well-Being for Taiwanese Home-Care Workers, Mediated by Emotional Labor. Healthcare (Basel) 2023; 11:2514. [PMID: 37761711 PMCID: PMC10530980 DOI: 10.3390/healthcare11182514] [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: 07/31/2023] [Revised: 09/08/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
The objective of this study was to investigate the effect of job satisfaction on psychological well-being through emotional labor for Taiwanese home-care workers. A total of 316 home-care workers who worked in Chiayi, Taiwan, were recruited in this study. Most of the participants were Taiwanese (96.5%). The mean age of the participants was 42.05 ± 12.15 years, and the participants were predominantly female (80%). The mean work experience was 5.64 ± 5.13 years. Job satisfaction, emotional labor, and psychological well-being were measured. Partial least squares structural equation modeling was used to examine the direct and indirect effects on job satisfaction, emotional labor, and psychological well-being. The results demonstrated that the internal factors of job satisfaction had indirect effects on psychological well-being through the mediating effects of surface acting and deep acting. However, it was also observed that the external factors of job satisfaction had indirect effects on psychological well-being through the mediating effect of surface acting but not deep acting. The model explained 57.6% of the variance in psychological well-being. The internal factors of job satisfaction are more important than the external factors affecting psychological well-being through the mediating effect of deep acting. Based on our results, we recommend enhancing the deep acting of emotional labor to improve the psychological well-being of Taiwanese home-care workers.
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Affiliation(s)
- Tung-Sheng Kuo
- Department of Business Administration, Nanhua University, Chiayi County 622301, Taiwan; (T.-S.K.)
| | - Li-Chuan Chu
- Department of Business Administration, Nanhua University, Chiayi County 622301, Taiwan; (T.-S.K.)
| | - Pi-Lien Kao
- Department of Business Administration, Nanhua University, Chiayi County 622301, Taiwan; (T.-S.K.)
- General Affairs Office, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City 60056, Taiwan
| | - Chia-Lung Shih
- Clinical Research Center, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi City 60056, Taiwan
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Ouergui I, Delleli S, Chtourou H, Selmi O, Bouassida A, Bouhlel E, Franchini E. Diurnal Variation of Specific Tests' Performance and Related Psychological Aspects in Young Judo Athletes. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2023; 94:687-697. [PMID: 35499504 DOI: 10.1080/02701367.2022.2043547] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
Purpose: This study investigated the effects of time-of-day on judo athletes' performances and the associated psychological variables and perceived exertion following judo-specific tests. Methods: Twelve male judo athletes (age: 16 ± 1 years) performed in a randomized and counterbalanced order the special judo fitness test (SJFT), the judo physical fitness test (JPFT), the dynamic and isometric judogi chin-up tests in the morning (8:00 a.m), midday (12:00 p.m), and afternoon (5:00 p.m). Oral temperature and psychological variables [profile of mood state (POMS), Hooper questionnaire, total quality of recovery (TQR)] were assessed before and after the tests, and ratings of perceived exertion (RPE) and the physical activity enjoyment scale (PACES) were assessed only after the tests. Results: RPE score was higher in the morning compared to the afternoon after the JPFT (d = 0.38, p = .045). PACES after JPFT was higher in the morning compared to midday (d = 0.85, p < .001). The isometric and dynamic performances during chin-up tests were higher in the afternoon compared to the morning (d = 0.38, p = .048 and 0.047, respectively). Also, oral temperature was higher in the afternoon compared to the morning (d = 0.41, p = .050) and the midday (p = .047) for dynamic test, while TQR, well-being indices, and POMS did not differ according to time-of-day (p > .05). Conclusions: These results suggest that dynamic and isometric judo chin-up tests are time-of-day dependent with higher performance recorded in the afternoon than in the morning. However, performances in the JPFT and SJFT were not time-of-day dependent.
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Affiliation(s)
| | | | - Hamdi Chtourou
- Université de Sfax
- Observatoire National du Sport, Tunisie
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Bougrine H, Nasser N, Abdessalem R, Ammar A, Chtourou H, Souissi N. Pre-Exercise Caffeine Intake Attenuates the Negative Effects of Ramadan Fasting on Several Aspects of High-Intensity Short-Term Maximal Performances in Adolescent Female Handball Players. Nutrients 2023; 15:3432. [PMID: 37571369 PMCID: PMC10421416 DOI: 10.3390/nu15153432] [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: 06/30/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/13/2023] Open
Abstract
The aim of this investigation was to determine whether, after Ramadan, pre-exercise caffeine intake can reduce any possible negative effects of this month on short-term maximal performances in young female handball players. A randomized study involved thirteen young female handball players. Participants performed a squat jump (SJ), Illinois agility test (AG), and 5 m run shuttles test (total (TD) and peak (PD) distances) at 08:00 AM and 06:00 PM on three different occasions: one week before Ramadan (Pre-R), the last week of Ramadan (R), and the week after Ramadan (Post-R). A placebo (Pla) or caffeine (Caff) (6 mg·kg-1) was administered 60 min before exercise test sessions at two distinct times of day (08:00 AM and 06:00 PM) during the two periods: Pre and Post-R. The PSQI and dietary intake were assessed during all testing periods. The results revealed that Pre-R, (SJ, AG, TD, and PD) test performances were greater in the evening (PM) than in the morning (AM) (all p < 0.001). However, compared with Pre-R, PM performances declined significantly during R (all p < 0.001) and Post-R (p < 0.05, p < 0.01, p < 0.01 and p < 0.001, respectively). In addition, Pre-R, AM Caff produced moderate significant improvements compared with AM Pla, with small-to-no beneficial effects observed with PM Caff in SJ (4.8% vs. 1%), AG (1.8% vs. 0.8%), TD (2.8% vs. 0.3%), and PD (6% vs. 0.9%). Nevertheless, Caff produced moderate ergogenic effects during both AM and PM sessions during Post-R in SJ (4.4% vs. 2.4%), AG (1.7% vs. 1.5%), TD (2.9% vs. 1.3%), and PD (5.8% vs. 3%) with values approaching those of Pre-R Pla within the same time of day (p > 0.05, p > 0.05, p < 0.05, and p < 0.05, respectively). In summary, pre-exercise Caff intake with a dose equivalent to 6 mg·kg-1 reduced the negative effects of Ramadan fasting in several aspects of short-term maximal performances in young female handball players at both times of the day.
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Affiliation(s)
- Houda Bougrine
- Physical Activity Research Unit, Sport and Health (UR18JS01), National Observatory of Sports, Tunis 1003, Tunisia; (H.B.); (N.N.); (R.A.); (H.C.); (N.S.)
- High Institute of Sport and Physical Education Ksar-Saïd, Manouba University, Mannouba 2010, Tunisia
| | - Nidhal Nasser
- Physical Activity Research Unit, Sport and Health (UR18JS01), National Observatory of Sports, Tunis 1003, Tunisia; (H.B.); (N.N.); (R.A.); (H.C.); (N.S.)
- High Institute of Sport and Physical Education Sfax, University of Sfax, Sfax 3000, Tunisia
| | - Raouf Abdessalem
- Physical Activity Research Unit, Sport and Health (UR18JS01), National Observatory of Sports, Tunis 1003, Tunisia; (H.B.); (N.N.); (R.A.); (H.C.); (N.S.)
- High Institute of Sport and Physical Education Sfax, University of Sfax, Sfax 3000, Tunisia
| | - Achraf Ammar
- High Institute of Sport and Physical Education Sfax, University of Sfax, Sfax 3000, Tunisia
- Department of Training and Movement Science, Institute of Sport Science, Johannes Gutenberg-University Mainz, 55099 Mainz, Germany
- Research Laboratory, Molecular Bases of Human Pathology, LR19ES13, Faculty of Medicine of Sfax, University of Sfax, Sfax 3029, Tunisia
| | - Hamdi Chtourou
- Physical Activity Research Unit, Sport and Health (UR18JS01), National Observatory of Sports, Tunis 1003, Tunisia; (H.B.); (N.N.); (R.A.); (H.C.); (N.S.)
- High Institute of Sport and Physical Education Sfax, University of Sfax, Sfax 3000, Tunisia
| | - Nizar Souissi
- Physical Activity Research Unit, Sport and Health (UR18JS01), National Observatory of Sports, Tunis 1003, Tunisia; (H.B.); (N.N.); (R.A.); (H.C.); (N.S.)
- High Institute of Sport and Physical Education Ksar-Saïd, Manouba University, Mannouba 2010, Tunisia
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Hajji J, Sabah A, Aljaberi MA, Lin CY, Huang LY. The Effect of Ramadan Fasting on the Coping Strategies Used by Male Footballers Affiliated with the Tunisian First Professional League. Healthcare (Basel) 2023; 11:healthcare11071053. [PMID: 37046980 PMCID: PMC10094225 DOI: 10.3390/healthcare11071053] [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: 02/18/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/14/2023] Open
Abstract
This study aimed to discover coping strategies among professional male Tunisian footballers during the Ramadan 2021 fast. One hundred and eighty footballers who belong to twelve Tunisian professional clubs (age: 25.54 ± 4.41 years, weight: 77.19 ± 5.99 kg; height: 180.54 ± 7.28 cm; BMI: 23.67 ± 0.58) were tested during three sessions: one week before Ramadan, during the last week of Ramadan, and one week after Ramadan 2021. The footballers completed the Arabic version of the Inventory of Coping Strategies for Competitive Sport (ICSCS) scale in each session. Responses were recorded retrospectively one hour after a competition. The analysis of variance revealed a significant effect of Ramadan fasting on the adaptation profile of footballers (F = 3.51; p-value = 0.0001). Before and after Ramadan fasting, active coping dominates the adaptation profile of Tunisian professional footballers. During Ramadan, footballers use an irregular and unbalanced coping profile. The lifestyle change induced by the Ramadan fast significantly and negatively affected the adaptation profile of Tunisian professional footballers. Under the effect of the month of Ramadan, footballers developed a different coping profile from that of normal months.
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Affiliation(s)
- Jamel Hajji
- Higher Institute of Sport and Physical Education of Gafsa, Gafsa University, Gafsa 2100, Tunisia
- Faculty of Human and Social Sciences, Tunis University, Gafsa 2100, Tunisia
| | - Aiche Sabah
- Faculty of Human and Social Sciences, Hassiba Benbouali University of Chlef, Chlef 02076, Algeria
| | - Musheer A Aljaberi
- Faculty of Medicine and Health Sciences, Taiz University, Taiz 6803, Yemen
| | - Chung-Ying Lin
- Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Lin-Yi Huang
- Department of Pediatrics, E-Da Cancer Hospital, I-Shou University, Kaohsiung 824, Taiwan
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Martínez-Rodríguez A, Miralles-Amorós L, Vicente-Martínez M, Asencio-Mas N, Yáñez-Sepúlveda R, Martínez-Olcina M. Ramadan Nutritional Strategy: Professional Soccer Player Case Study. Nutrients 2022; 14:nu14030465. [PMID: 35276823 PMCID: PMC8838374 DOI: 10.3390/nu14030465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/16/2022] [Accepted: 01/18/2022] [Indexed: 01/27/2023] Open
Abstract
The period of Ramadan induces changes in the usual eating patterns of individuals. During this period, Muslims must abstain from drinking and eating from dawn to dusk. Therefore, some research conducted on professional soccer players has observed that during and/or after Ramadan, performance, running speed, agility, dribbling speed, and endurance and/or skill performance in athletic events may be negatively affected by Ramadan intermittent fasting (RIF). The objective of this study was to analyze the influence of a dietary plan during RIF on performance and body composition in a professional soccer player. A 20-year-old elite player (86.0 kg, 188.5 cm) followed a dietary-nutritional plan with an isocaloric diet and was supplemented with glycerol. The athlete's strength and power in the lower limbs was assessed by performing a countermovement jump (CMJ) and Abalakov vertical jump (ABK) before and after Ramadan. After nutritional planning, the patient's body composition improved in terms of fat loss (6.61 to 5.70%) and muscle mass gain (50.26 to 51.50%). In addition, this translated into improvements in performance tests, both in the CMJ (36.72 to 40.00 cm) and ABK (39.16 to 49.34 cm). In conclusion, during a period of fasting, personalised nutritional planning and an appropriate supplementation and rest protocol can improve the body composition and performance of soccer players.
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Affiliation(s)
- Alejandro Martínez-Rodríguez
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Sciences, University of Alicante, 03690 Alicante, Spain; (L.M.-A.); (N.A.-M.); (M.M.-O.)
- Alicante Institute for Health and Biomedical Research (ISABIAL Foundation), 03010 Alicante, Spain
- Correspondence:
| | - Laura Miralles-Amorós
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Sciences, University of Alicante, 03690 Alicante, Spain; (L.M.-A.); (N.A.-M.); (M.M.-O.)
| | - Manuel Vicente-Martínez
- Faculty of Health Science, Miguel de Cervantes European University, 47012 Valladolid, Spain;
| | - Nuria Asencio-Mas
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Sciences, University of Alicante, 03690 Alicante, Spain; (L.M.-A.); (N.A.-M.); (M.M.-O.)
| | - Rodrigo Yáñez-Sepúlveda
- Escuela de Educación, Pedagogía en Educación Física, Universidad Viña del Mar, Viña del Mar 7055, Chile;
| | - María Martínez-Olcina
- Department of Analytical Chemistry, Nutrition and Food Science, Faculty of Sciences, University of Alicante, 03690 Alicante, Spain; (L.M.-A.); (N.A.-M.); (M.M.-O.)
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Fekih S, Zguira MS, Koubaa A, Bettaieb A, Hajji J, Bragazzi NL, Jarraya M. Effects of Mental Training Through Imagery on the Competitive Anxiety of Adolescent Tennis Players Fasting During Ramadan: A Randomized, Controlled Experimental Study. Front Nutr 2021; 8:713296. [PMID: 34869512 PMCID: PMC8633113 DOI: 10.3389/fnut.2021.713296] [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: 05/22/2021] [Accepted: 10/08/2021] [Indexed: 11/13/2022] Open
Abstract
This study aimed to analyze the effects of mental training through imagery on the competitive anxiety of adolescent tennis players fasting during Ramadan. This is an experimental study conducted with 38 male tennis players, randomly allocated to two groups: an experimental group (EG, n = 18), aged 16.9 ± 0.6 years, and a control group (CG, n = 20), aged 16.7 ± 0.8 years. The study was designed as a randomized, controlled experimental trial (registration code PACTR 202006847771700). CG watched historical videos of the Olympics, while EG performed mental training. The competitive anxiety state assessment was recorded four times. The first measurement was carried out 1 week before Ramadan, the second measurement during the first week of the month, the third measurement at the end of the second week, and, finally, the fourth measurement during the fourth week of Ramadan. Our results revealed a significant interaction (time × groups) for all competitive anxiety subscales. Higher intensity and direction scores for the cognitive and somatic anxiety subscales during Ramadan compared with before Ramadan for both groups could be reported at P < 0.001. Higher intensity and direction scores for the cognitive and somatic anxiety subscales during Ramadan compared with pre-Ramadan for both groups could be found at P < 0.01. This increase in scores was greater for the CG than for the EG in the middle and at the end of Ramadan at P < 0.001. Finally, for the self-confidence subscale score, results revealed that intensity and direction scores were lower during Ramadan compared with pre-Ramadan for the two groups at P < 0.01. The score for the intensity of self-confidence was higher for the EG compared with the CG at the end of Ramadan at P < 0.001. It was concluded that mental imagery training was effective in reducing anxiety (cognitive and somatic) and increasing self-confidence in the intensity dimension of adolescent tennis players who fast during Ramadan.
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Affiliation(s)
- Sofien Fekih
- Higher Institute of Sport and Physical Education of Gafsa, Gafsa, Tunisia.,Institute of Sport and Physical Education of Ksar Said, University of Manouba, Manouba, Tunisia.,Higher Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia
| | - Mohamed Sami Zguira
- Higher Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia.,Department of Physiology and Lung Function Testing, Faculty of Medicine Ibn-El-Jazzar, University of Sousse, Sousse, Tunisia
| | - Abdessalem Koubaa
- Higher Institute of Sport and Physical Education of Gafsa, Gafsa, Tunisia.,Laboratory of Pharmacology, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
| | - Anouar Bettaieb
- Higher Institute of Applied Studies in Humanity of Mahdia, University of Monastir, Mahdia, Tunisia
| | - Jamel Hajji
- Higher Institute of Sport and Physical Education of Gafsa, Gafsa, Tunisia
| | - Nicola Luigi Bragazzi
- Postgraduate School of Public Health, Department of Health Sciences (DISSAL), Genoa University, Genoa, Italy.,Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), Section of Psychiatry, Genoa University, Genoa, Italy.,Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON, Canada
| | - Mohamed Jarraya
- Higher Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia.,Laboratory of Pharmacology, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia
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The Effects of Ramadan Intermittent Fasting on Football Players and Implications for Domestic Football Leagues Over the Next Decade: A Systematic Review. Sports Med 2021; 52:585-600. [PMID: 34757593 DOI: 10.1007/s40279-021-01586-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND The month of Ramadan will intersect with many football leagues' schedules over the next decade. Understanding the effects of Ramadan intermittent fasting (RIF) on physical performance is necessary to guide considerations for football players. OBJECTIVE The aim of this systematic review was to investigate the effects of RIF on physical factors in football players, and secondarily to consider the impact this may have on domestic club football leagues. DESIGN We conducted a systematic review using PRISMA guidelines. DATA SOURCES The online literature search utilized CINAHL (EBSCO), Cochrane Library, Embase.com, PubMed, and Scopus databases, and grey literature (all from database inception to May 2020). STUDY SELECTION CRITERIA Inclusion criteria consisted of studies of football (soccer) players, data collected during and/or around Ramadan, with injury and/or performance data provided. RESULTS The search yielded 11,226 studies. Twenty-two studies were included following a review of titles, abstracts, and full texts. Studies included some iteration of before-Ramadan, during-Ramadan, and after-Ramadan data. Common measures observed included ratings of perceived exertion (n = 8), sprinting (n = 7), sleep (n = 7), peak heart rate (n = 6), jumping (n = 5), Yo-Yo intermittent recovery tests (n = 4), Wingate anaerobic test (n = 3), field-specific tests (n = 3), and injury rates (n = 2). Decreased physical performance was commonly observed during late afternoon/evening testing (before breaking the fast) and with high-intensity exercise. CONCLUSION There appears to be a performance deficit related to RIF in Muslim football players. Studies should explore the effects of RIF on actual match demands. Due to the month of Ramadan emerging into league calendars, considerations should be made to accommodate Muslim football players who are intermittently fasting.
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Mhenni T, Souissi A, Tayech A, Yousfi N, Mejri MA, Chamari K, Souissi N, Khlifa R, Haddad M. The effect of Ramadan fasting on the morning-evening difference in team-handball-related short-term maximal physical performances in elite female team-handball players. Chronobiol Int 2021; 38:1488-1499. [PMID: 34112026 DOI: 10.1080/07420528.2021.1932994] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The combined effect of Ramadan fasting and the time of theday on the physical performance of team-handball players has not yet been fully investigated. This study investigated the effects of Ramadan fasting on the morning-evening difference in team-handball-related short-term maximal physical performance. With acounterbalanced study design, 15 elite female team-handball players underwent the hand grip (HG), ball throwing velocity (BTV), modified agility T-test (MAT), and repeated shuttle-sprint and jump ability (RSSJA) tests at 07:00 h and 17:00 h, one week before Ramadan (BR), and during thesecond (SWR) and fourth week of Ramadan (4WR). The oral temperature (OT) was monitored prior to exercise and the ratings of perceived exertion (RPE) scale were obtained after RSSJA. The results showed that the time of theday had an effect on OT under all conditions. The HG, BTV, and MAT test performances were higher in the evening than in the morning BR (P< .001, P< .05, and P< .001, respectively). However, the diurnal variation noted in the HG and MAT tests was reversed during the SWR and 4WR, while the BTV variation was blunted during the SWR and reversed during the 4WR. The best RSSJA performance was observed in the evening BR. However, for the best and mean sprint times, areversal of this diurnal variation was observed, which was blunted for the mean jump height and sprint time decrement during Ramadan. Moreover, RPE were influenced by the time of theday and the month of Ramadan. These findings suggest that the diurnal variation of team-handball-related short-term maximal physical performance may be reversed and/or blunted during Ramadan fasting.
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Affiliation(s)
- Thouraya Mhenni
- Tunisian Research Laboratory ''Sports Performance Optimization'', National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia.,High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University, Tunis, Tunisia
| | - Amine Souissi
- High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University, Tunis, Tunisia.,Physical Activity, Sport and Health, UR18JS01, National Observatory of Sport, Tunis, Tunisia
| | - Amel Tayech
- Tunisian Research Laboratory ''Sports Performance Optimization'', National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia.,High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University, Tunis, Tunisia
| | - Narimen Yousfi
- Tunisian Research Laboratory ''Sports Performance Optimization'', National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia.,High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University, Tunis, Tunisia
| | - Mohamed Arbi Mejri
- Tunisian Research Laboratory ''Sports Performance Optimization'', National Center of Medicine and Science in Sports (CNMSS), Tunis, Tunisia.,High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University, Tunis, Tunisia
| | - Karim Chamari
- Research and Scientific Support, Aspetar, Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Nizar Souissi
- Physical Activity, Sport and Health, UR18JS01, National Observatory of Sport, Tunis, Tunisia
| | - Riadh Khlifa
- Research Unit (UR17JS01) "Sport Performance, Health & Society", High Institute of Sport and Physical Education of Ksar-Saïd, Tunis, Tunisia
| | - Monoem Haddad
- Sport Science Program, College of Arts and Sciences, Qatar University, Doha, Qatar
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11
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Effects of Ramadan Fasting on Physical Performance: A Systematic Review with Meta-analysis. Sports Med 2021; 50:1009-1026. [PMID: 31960369 DOI: 10.1007/s40279-020-01257-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND It is common that several athletes will fast while training or competing during Ramadan. There is currently no consensus on if or how this might affect physical performance. OBJECTIVE The aim was to conduct a systematic review combined with a meta-analysis to determine what are the effects of fasting during the month of Ramadan on physical performance. METHODS Three electronic databases were searched: PubMed, ScienceDirect, and Web of Science between from the earliest available date to May 2019. Two authors identified studies that evaluated the effects of Ramadan fasting on physical performance. Risk of bias was assessed using the Downs and Black methodological quality checklist. Pooled effects were reported as standardized mean differences (MDs) and 95% confidence intervals (CIs) using a random effects model. RESULTS A total of 11 studies met the inclusion criteria. Results revealed that Ramadan fasting had a deleterious effect on mean power and peak power during a Wingate and/or a repeated sprint test. In the morning, sprint performance was negatively affected by Ramadan fasting. Aerobic performance, strength, jump height, fatigue index, and total work were not affected by the intermittent fasting during the month of Ramadan. CONCLUSIONS The majority of physical performance parameters were not influenced by Ramadan fasting when tested either in the morning or in the afternoon. Athletes appear able to participate in competition in a fasted state with little impact on physical performance. Sleep and nutrition opportunities should be optimized to minimize likelihood of accumulating fatigue.
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Belkhir Y, Rekik G, Chtourou H, Souissi N. Does warming up with different music tempos affect physical and psychological responses? The evidence from a chronobiological study. J Sports Med Phys Fitness 2021; 62:149-156. [PMID: 33555672 DOI: 10.23736/s0022-4707.21.12093-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND This study examined the effects of listening to different music tempos during warm-up on short-term maximal performance and psychological responses, as a function of Times of Day (TOD). METHODS Fifteen well trained subjects (93.75% were semi-professional soccer players) randomly performed the 30-s Continuous Jump test (CJ30) during three morning sessions (07h00) and three evening sessions (17h00), separated by 48h of recovery, each after a warmup under three different conditions: without music (NO-M), with music at 60 bpm (LOW-M), and with music at 120-140 bpm (HIGH-M). The maximal jump height (Hmax), mean jump height of all jumps (Hmean), and fatigue index (FI %) were measured during CJ30. Feeling states (FS) were determined after warm-up, and body temperature was controlled before/after warm-up, as well as after CJ30. RESULTS Data analysis showed that Hmax, Hmean, and body temperature were higher at 17h00 than 07h00 in all experimental conditions. Moreover, Hmax, Hmean and FS were better after warm-ups with LOW-M and HIGH-M compared to NO-M condition at both TOD, with a higher gain at 07h00. More importantly, Hmax, Hmean and FS were better after warm-up with HIGH-M than with LOW-M at both TOD, with a higher gain at 07h00. CONCLUSIONS Although both music tempos were beneficial, warming-up with high music tempo (120-140 bpm) is better than warming-up with low music tempo (60 bpm) for improving short-term maximal performance and psychological responses whatever the TOD, especially in the morning hours.
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Affiliation(s)
- Yosra Belkhir
- High Institute of Sport and Physical Education of Ksar-said, Manouba University, Tunis, Tunisia.,Research Laboratory, Education, Motricity, Sport and Health (LR19JS01), High Institute of Sport and Physical Education of Sfax, Sfax University, Sfax, Tunisia.,Al-Udhailiyah Primary School for Girls, Department of Physical Education, Al-Farwaniyah, Kuwait
| | - Ghazi Rekik
- Research Laboratory, Education, Motricity, Sport and Health (LR19JS01), High Institute of Sport and Physical Education of Sfax, Sfax University, Sfax, Tunisia - .,Tanyu Research Laboratory, Taipei, Taiwan
| | - Hamdi Chtourou
- High Institute of Sport and Physical Education of Sfax, Sfax University, Sfax, Tunisia.,Research Unit, Physical Activity, Sport and Health (UR18JS01), National Sport Observatory, Tunis, Tunisia
| | - Nizar Souissi
- High Institute of Sport and Physical Education of Ksar-said, Manouba University, Tunis, Tunisia.,Research Unit, Physical Activity, Sport and Health (UR18JS01), National Sport Observatory, Tunis, Tunisia
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13
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Correia JM, Santos I, Pezarat-Correia P, Silva AM, Mendonca GV. Effects of Ramadan and Non-ramadan Intermittent Fasting on Body Composition: A Systematic Review and Meta-Analysis. Front Nutr 2021; 7:625240. [PMID: 33575269 PMCID: PMC7870696 DOI: 10.3389/fnut.2020.625240] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 12/23/2020] [Indexed: 01/01/2023] Open
Abstract
Intermittent fasting (IF) has gained popularity for body-composition improvement purposes. The aim of this systematic review and meta-analysis was to summarize the effects of Ramadan vs. non-Ramadan IF on parameters of body composition. We conducted a comprehensive search of peer-reviewed articles in three electronic databases: PubMed, Scopus, and Web of Science (published until May 2020). Studies were selected if they included samples of adults (≥18 years), had an experimental or observational design, investigated any type of IF and included body composition outcomes. Meta-analytical procedures were conducted when feasible. Sixty-six articles met the eligibility criteria. We found that non-Ramadan IF is effective for decreasing body weight (−0.341 (95% CI [−0.584, −0.098], p = 0.006), body mass index (−0.699, 95% CI [−1.05, −0.347], p < 0.001), and absolute fat mass (−0.447, 95% CI [−0.673, −0.221], p < 0.001). When contrasting pre- post-intervention data on fat-free mass between treatments and controls, group-differences were non-significant (p > 0.05). Conversely, we observed a significant increase in fat-free mass when comparing pre- to post-intervention in a within design fashion (0.306, 95% CI [0.133, 0.48], p = 0.001). Finally, despite being accompanied by dehydration, Ramadan IF is effective in decreasing body weight (−0.353; 95% CI [−0.651, −0.054], p = 0.02) and relative fat mass (−0.533; 95% CI [−1.025, −0.04], p = 0.034). Ramadan IF seems to implicate some beneficial adaptations in weight management, although non-Ramadan IF appears to be more effective in improving overall body composition.
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Affiliation(s)
- Joana M Correia
- Neuromuscular Research Lab, Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal.,Centro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal
| | - Inês Santos
- Centro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal.,Centro de Investigação em Desporto, Educação Física, Exercício e Saúde (CIDEFES), Lusófona University, Lisbon, Portugal.,Nutrition Lab, Faculty of Medicine, University of Lisbon, Lisbon, Portugal
| | - Pedro Pezarat-Correia
- Neuromuscular Research Lab, Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal.,Centro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal
| | - Analiza M Silva
- Centro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal.,Exercise and Health Laboratory, Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal
| | - Goncalo V Mendonca
- Neuromuscular Research Lab, Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal.,Centro Interdisciplinar para o Estudo da Performance Humana (CIPER), Faculty of Human Kinetics, University of Lisbon, Lisbon, Portugal
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14
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Graja A, Ghattassi K, Boudhina N, Bouzid MA, Chahed H, Ferchichi S, Driss T, Souissi N, Hammouda O. Effect of Ramadan intermittent fasting on cognitive, physical and biochemical responses to strenuous short-term exercises in elite young female handball players. Physiol Behav 2020; 229:113241. [PMID: 33157076 DOI: 10.1016/j.physbeh.2020.113241] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 10/08/2020] [Accepted: 10/31/2020] [Indexed: 02/02/2023]
Abstract
The present study aimed to assess the effect of Ramadan intermittent fasting (RF) on cognitive and physical performance and biochemical responses to specific exercises in elite young female handball players. Twelve athletes participated in three experimental sessions: one week before Ramadan (BR), during the first week of Ramadan (FWR) and during the last week of Ramadan (LWR). The present crossover study was carried out in Tunisia during the 2013 Ramadan month lasting from 9 July to 7 august. During each session, a battery of tests was performed as follow: Hooper index, vigilance test (VT), Epworth sleepiness scale (ESS), five jump test (5-JT), modified agility T-test (MAT), maximal standing ball-throw velocity test (MSBVT) and Running-based Anaerobic Sprint (RAST) Test. Rating of perceived exertion (RPE) was recorded immediately after the RAST. Blood samples were collected before and after exercises during each session. The results showed that ESS scores were higher during LWR than BR (p < 0.05). Moreover, MSBVT time decreased (p < 0.05) during LWR, therefore performance enhanced. The power of three final sprints from the RAST decreased significantly only during LWR compared to BR (p < 0.05). RAST fatigue index and RPE scores were higher during LWR more than BR (p < 0.05). The results showed also that hematological measures (i.e., red blood cells, hemoglobin and hematocrit), plasma osmolarity and energetic markers were unaffected by RF. Biomarkers of muscle damage were higher after the RAST only during LWR compared to BR (p < 0.01 for all). In conclusion, RF increased ESS and decreased RAST performances associated with higher muscle damage and fatigue, especially at LWR. These previous alterations could be attributed to disturbances of sleep and circadian rhythms rather than nutritional deficiency or dehydratation.
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Affiliation(s)
- Ahmed Graja
- Research Laboratory, Molecular Bases of Human Pathology, LR19ES13, Faculty of Medicine, University of Sfax, Sfax, Tunisia; High institute of sport and physical education, Ksar-Said, Manouba University, Manouba, Tunisia.
| | - Kais Ghattassi
- Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia
| | - Nahla Boudhina
- High institute of sport and physical education, Ksar-Said, Manouba University, Manouba, Tunisia
| | - Mohamed Amine Bouzid
- Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia
| | - Henda Chahed
- Biochemistry Laboratory, CHU Farhat Hached, Sousse, Tunisia
| | | | - Tarak Driss
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and learning (LINP2), UPL, UFR STAPS, Paris Nanterre University, Nanterre, France
| | - Nizar Souissi
- Research Unit Physical Activity, Sport and Health, UR18JS01, National Observatory of Sport, Tunis, Tunisia
| | - Omar Hammouda
- Research Laboratory, Molecular Bases of Human Pathology, LR19ES13, Faculty of Medicine, University of Sfax, Sfax, Tunisia; Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and learning (LINP2), UPL, UFR STAPS, Paris Nanterre University, Nanterre, France
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15
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The Impact of a Motor Imagery-Based Training Program on Agility, Speed, and Reaction Time in a Sample of Young Tennis Athletes during Ramadan Fasting: Insights and Implications from a Randomized, Controlled Experimental Trial. Nutrients 2020; 12:nu12113306. [PMID: 33137868 PMCID: PMC7692860 DOI: 10.3390/nu12113306] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/15/2020] [Accepted: 10/20/2020] [Indexed: 11/17/2022] Open
Abstract
The objective of this study was to explore whether a training program incorporating motor imagery could have an effect on physical performance outcomes in terms of agility, speed, and reaction time in a sample of tennis athletes who fasted during the month of Ramadan. Recruited subjects were 27 young male tennis players, randomly allocated to two groups: the imaging training group (n = 13) and a control group (n = 14). The study was designed as a randomized, controlled experimental study. The control group was engaged in watching videos concerning the history of the Olympic Games, whereas the motor imagery group followed a motor imagery-based training program. Physical performance outcomes were assessed during four sessions (one before Ramadan and three during Ramadan) by means of field tests. Our results revealed a drop in all performance outcomes measured in the middle and at the end of Ramadan for both groups (p < 0.01). The effect of the group × time interaction (p < 0.01) was reported for all physical performance outcomes measured for the two groups. This drop in performance was greater for the control group compared to the motor imagery group in the middle and at the end of Ramadan. This study showed that fasting during Ramadan reduced agility, speed, and reaction time performance for tennis players. A motor imagery-based training program could be an effective approach to reduce the effect of fasting during Ramadan and stabilize physical performance outcomes in terms of agility, speed, and reaction time for male tennis players.
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16
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Belkhir Y, Rekik G, Chtourou H, Souissi N. Effect of listening to synchronous versus motivational music during warm-up on the diurnal variation of short-term maximal performance and subjective experiences. Chronobiol Int 2020; 37:1611-1620. [PMID: 32741226 DOI: 10.1080/07420528.2020.1797764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Which type of music is better for improving short-term maximal performance (STMP) and subjective experiences, and under what conditions? The present study was designed to address this issue by investigating the effects of listening to synchronous versus motivational music during warm-up, as a function of time of day, on exercise performance. In a random order, 16 highly trained physical education students (male) performed the 30-s Continuous Jump (CJ30) during six sessions separated at minimum by 48 h of recovery: after two warm-ups with synchronous music (WUSM), after two warm-ups with motivational music (WUMM), and after two warm-ups without music (WUWM), at 07:00 and 17:00 h. The maximal jump height (Hmax), mean jump height of all jumps (Hmean), and fatigue index (F %) were measured during the test. Body temperature was collected before and after the warm-up, and at the end of the CJ30 test. The rated perceived exertion (RPE) and the feelings states (FS) were obtained immediately after the warm-up and the test. The results revealed that Hmean, Hmax, and temperature were higher at 17:00 than 07:00 h in all experimental conditions. Moreover, Hmean and Hmax were higher with WUSM and WUMM than WUWM at both times of day, with greater improvement in the morning. After performing the CJ30 test, RPE scores were higher with WUMM than WUWM at both times of day. Moreover, FS scores were more positive with WUMM than WUWM in the morning. Furthermore, WUMM resulted in better Hmax and Hmean at both times of day than WUSM. However, FS and RPE were independent of types of music. Findings suggested the use of music during warm-up to increase STMP, RPE, and FS at both times of day, and reduce the morning-afternoon difference in the CJ30 test. More importantly, a warm-up with motivational music is more beneficial than a warm-up with synchronous music for improving STMP, either in the morning or in the afternoon.
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Affiliation(s)
- Yosra Belkhir
- Research Laboratory: Education, Motricité, Sport Et Santé, EM2S, LR19JS01, Sfax University , Sfax, Tunisia.,High Institute of Sport and Physical Education of Ksar-said, Manouba University , Tunis, Tunisia
| | - Ghazi Rekik
- Research Laboratory: Education, Motricité, Sport Et Santé, EM2S, LR19JS01, Sfax University , Sfax, Tunisia
| | - Hamdi Chtourou
- High Institute of Sport and Physical Education of Sfax, Sfax University , Sfax, Tunisia.,Activité Physique: Sport Et Santé, UR18JS01, Observatoire National Du Sport , Tunis, Tunisie
| | - Nizar Souissi
- High Institute of Sport and Physical Education of Ksar-said, Manouba University , Tunis, Tunisia.,Activité Physique: Sport Et Santé, UR18JS01, Observatoire National Du Sport , Tunis, Tunisie
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17
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Mirizio GG, Nunes RSM, Vargas DA, Foster C, Vieira E. Time-of-Day Effects on Short-Duration Maximal Exercise Performance. Sci Rep 2020; 10:9485. [PMID: 32528038 PMCID: PMC7289891 DOI: 10.1038/s41598-020-66342-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 04/29/2020] [Indexed: 01/22/2023] Open
Abstract
Time-of-day dependent fluctuations in exercise performance have been documented across different sports and seem to affect both endurance and resistance modes of exercise. Most of the studies published to date have shown that the performance in short-duration maximal exercises (i.e. less than 1 min - e.g. sprints, jumps, isometric contractions) exhibits diurnal fluctuations, peaking between 16:00 and 20:00 h. However, the time-of-day effects on short duration exercise performance may be minimized by the following factors: (1) short exposures to moderately warm and humid environments; (2) active warm-up protocols; (3) intermittent fasting conditions; (4) warming-up while listening to music; or (5) prolonged periods of training at a specific time of day. This suggests that short-duration maximal exercise performance throughout the day is controlled not only by body temperature, hormone levels, motivation and mood state but also by a versatile circadian system within skeletal muscle. The time of day at which short-duration maximal exercise is conducted represents an important variable for training prescription. However, the literature available to date lacks a specific review on this subject. Therefore, the present review aims to (1) elucidate time-of-day specific effects on short-duration maximal exercise performance and (2) discuss strategies to promote better performance in short-duration maximal exercises at different times of the day.
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Affiliation(s)
- Gerardo Gabriel Mirizio
- Muscle Cell Physiology Laboratory, Center of Molecular Studies of the Cell, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | | | - Douglas Araujo Vargas
- Graduate Program on Physical Education, Universidade Católica de Brasília, Brasília, DF, Brazil
| | - Carl Foster
- University of Wisconsin - La Crosse, Department of Exercise and Sport Science, La Crosse, USA
| | - Elaine Vieira
- Postgraduate Program on Physical Education, Universidade Católica de Brasília, Brasília, DF, Brazil.
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18
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Miladi A, Ben Fraj S, Latiri I, Ben Saad H. Does Ramadan Observance Affect Cardiorespiratory Capacity of Healthy Boys? Am J Mens Health 2020; 14:1557988320917587. [PMID: 32475293 PMCID: PMC7263136 DOI: 10.1177/1557988320917587] [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] [Indexed: 01/07/2023] Open
Abstract
Studies raising the issue of the effects of Ramadan observance (RO) on boys' 6-min walk test (6MWT) data are rare. The studies, which did not include control groups of non-fasters, presented contradictory results. This study aimed to compare the 6MWT data (6-min walk distance [6MWD; m, %predicted], heart rate [HR; bpm, % of maximal predicted HR]), oxy-hemoglobin saturation (Oxy-sat; %), systolic and diastolic blood pressures (SBP and DBP, respectively; mmHg) determined at rest (Rest and at the end End of the test) of a group of 22 healthy fasting boys (age: 12 to 15 years) with an age-matched non-fasting group (n = 10). The 6MWTs were performed during three experimental conditions (ECs): Pre-Ramadan, Mid-Ramadan, and Post-Ramadan. The two groups' 6MWT data for each EC were compared, and repeated factorial analysis of variance (2 groups vs. 3 ECs) was performed. Both groups had similar values of 6MWD (m, %predicted), HRRest or HREnd (bpm, % of maximal predicted HR), Oxy-satRest, Oxy-satEnd, SBPRest, and DBPRest during the three ECs. Compared to the non-fasting group, the fasting group had significantly higher SBPEnd (121 ± 10 vs. 130 ± 11) and DBPEnd (72 ± 6 vs. 78 ± 7) determined during the Mid-Ramadan EC. No significant interactive effects of the groups (2) vs. ECs (3) was found for the 6MWD (%predicted; p = .809), HRRest (%, p = .555), HREnd (%, p = .964), Oxy-satRest (p = .336), Oxy-satEnd (p = .389), SBPRest (p = .708), SBPEnd (p = .548), DBPRest (p = .277), and DBPEnd (p = .096). To conclude, in boys, RO does not impact the 6MWD, HR, or Oxy-sat, but it has minimal impact on the SBPEnd and DBPEnd.
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Affiliation(s)
- Amira Miladi
- Université de Sousse, Faculté de Médecine de Sousse, Laboratoire de Physiologie et Explorations Fonctionnelles, Sousse, Tunisia
| | - Selma Ben Fraj
- Université de Sousse, Faculté de Médecine de Sousse, Laboratoire de Physiologie et Explorations Fonctionnelles, Sousse, Tunisia
| | - Imed Latiri
- Université de Sousse, Faculté de Médecine de Sousse, Laboratoire de Physiologie et Explorations Fonctionnelles, Sousse, Tunisia,Heart Failure (LR12SP09) Research Laboratory, Farhat HACHED University Hospital, Sousse, Tunisia
| | - Helmi Ben Saad
- Université de Sousse, Faculté de Médecine de Sousse, Laboratoire de Physiologie et Explorations Fonctionnelles, Sousse, Tunisia,Heart Failure (LR12SP09) Research Laboratory, Farhat HACHED University Hospital, Sousse, Tunisia,Helmi Ben Saad, MD, PhD, Laboratory of Physiology, Faculty of Medicine of Sousse, Rue Mohamed KAROUI, Sousse, Tunisia.
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Effects of 25-Min Nap Opportunity during Ramadan Observance on the 5-m Shuttle Run Performance and the Perception of Fatigue in Physically Active Men. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17093135. [PMID: 32365914 PMCID: PMC7246774 DOI: 10.3390/ijerph17093135] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 04/24/2020] [Accepted: 04/29/2020] [Indexed: 01/10/2023]
Abstract
We aimed to investigate the effects of a 25-min nap opportunity on physical performance during the 5-m shuttle run test (5mSRT), feelings (i.e., evaluated by the feeling scale), attention (i.e., evaluated by the digit cancellation test) and the perception of fatigue (i.e., recorded by the rating of perceived exertion (RPE)) during Ramadan observance. Twelve physically active men (age: 21.1 ± 3.2 yrs, height: 1.76 ± 0.05 m, body-mass: 71.2 ± 9.3 kg) voluntarily participated in five test sessions: 15 days before Ramadan (BR), the first 10 days of Ramadan (FR), the last 10 days of Ramadan (ER), 10 days after Ramadan (10AR) and 20 days after Ramadan (20AR). During each test session, participants performed the digit cancellation test, a 5-min standard warm-up, the 5mSRT (6 × 30-s with 35-s intervals-between) and the rating of perceived exertion (RPE) after no-nap (N0) and 25-min nap opportunity (N25) conditions. Participants also completed the Pittsburgh Sleep Quality Index (PSQI) during each period. The total distance covered during the 5mSRT did not differ significantly before, during or after Ramadan, but was significantly greater after N25 compared to N0 at 10AR (687.5 ± 23.0 m vs. 725.6 ± 41.1 m; p = 0.018) and 20AR (698.3 ± 19.8 m vs. 742.6 ± 58.3 m; p = 0.003). The attention scores were higher after N25 in comparison with N0 at 10AR (p = 0.04) and 20AR (p = 0.02). RPE scores were not significantly different between N25 and N0 conditions. Feelings scores were higher after N25 compared to N0 during both FR (p = 0.007) and 20AR (p = 0.04). A significant deterioration of sleep quality was recorded during Ramadan (i.e., PSQI scores were significantly higher during and after compared to BR (p < 0.0005)). A 25-min nap opportunity was beneficial for physical and cognitive performance after Ramadan observance; however, any effect is insufficient to show significant beneficial impacts during Ramadan.
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Fekih S, Zguira MS, Koubaa A, Masmoudi L, Bragazzi NL, Jarraya M. Effects of Motor Mental Imagery Training on Tennis Service Performance during the Ramadan Fasting: a Randomized, Controlled Trial. Nutrients 2020; 12:nu12041035. [PMID: 32283820 PMCID: PMC7231086 DOI: 10.3390/nu12041035] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/17/2020] [Accepted: 03/30/2020] [Indexed: 12/23/2022] Open
Abstract
The objective of the present study is to analyze the effects of motor mental imagery training on tennis service performance among tennis athletes who fast during Ramadan. Participants were 38 young male tennis players, randomly divided into two groups: Imaging Training (IMG, n = 18) and control group (CG, n = 20). The CG has watched videos on the history of the Olympic Games, while IMG has followed a training program in motor imagery. The performance of the tennis service was obtained by the product between accuracy and speed of typing (accuracy × average speed of all shots (km/h)). The effect of group/time interaction (p < 0.01) was identified for all performance indicators (accuracy, running speed and performance (speed × precision)), with improvement only in IMG (p = 0.01). The results showed that motor imagery training could be an effective strategy for mitigating/counteracting the negative effects of Ramadan on the tennis service performance.
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Affiliation(s)
- Sofien Fekih
- Higher Institute of Sport and Physical Education of Gafsa, Gafsa 2100, Tunisia; (S.F.); (M.S.Z.); (A.K.)
- Institute of Sport and Physical Education of Ksar Said, University of Manouba, Manouba 2010, Tunisia
- Research Unit: Education, Motricity, Sports and Health, (EM2S, UR15JS01), Higher Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3100, Tunisia; (L.M.); (M.J.)
| | - Mohamed Sami Zguira
- Higher Institute of Sport and Physical Education of Gafsa, Gafsa 2100, Tunisia; (S.F.); (M.S.Z.); (A.K.)
- Department of Physiology and Lung Function Testing, Faculty of Medicine Ibn-El-Jazzar, University of Sousse, Sousse 4000, Tunisia
| | - Abdessalem Koubaa
- Higher Institute of Sport and Physical Education of Gafsa, Gafsa 2100, Tunisia; (S.F.); (M.S.Z.); (A.K.)
- Laboratory of Pharmacology, Faculty of Medicine of Sfax, University of Sfax, Sfax 3100, Tunisia
| | - Liwa Masmoudi
- Research Unit: Education, Motricity, Sports and Health, (EM2S, UR15JS01), Higher Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3100, Tunisia; (L.M.); (M.J.)
| | - Nicola Luigi Bragazzi
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), Section of Psychiatry, Genoa University, 16132 Genoa, Italy
- Postgraduate School of Public Health, Department of Health Sciences (DISSAL), Genoa University, 16132 Genoa, Italy
- Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON M3J1P3, Canada
- Correspondence:
| | - Mohamed Jarraya
- Research Unit: Education, Motricity, Sports and Health, (EM2S, UR15JS01), Higher Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3100, Tunisia; (L.M.); (M.J.)
- Research Laboratory Sport Performance Optimization, National Centre of Medicine and Sciences in Sport (CNMSS), Tunis 2000, Tunisia
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Pullinger SA, Cocking S, Robertson CM, Tod D, Doran DA, Burniston JG, Varamenti E, Edwards BJ. Time-of-day variation on performance measures in repeated-sprint tests: a systematic review. Chronobiol Int 2019; 37:451-468. [DOI: 10.1080/07420528.2019.1703732] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Samuel A. Pullinger
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
- Sports Science Department, Aspire Academy,
Doha, Qatar
| | - Scott Cocking
- Sports Science Department, Aspire Academy,
Doha, Qatar
| | - Colin M. Robertson
- School for Sport and Biological Sciences, University of Bolton, Bolton, UK
| | - David Tod
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Dominic A. Doran
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Jatin G. Burniston
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | | | - Ben J Edwards
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
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Attia A, Baaziz H, Néji Z, Rajab N, Petrova LG, Chortana SEG, Khalifa R. Diurnal variation in drop jump performance and associated electromyographic parameters. BIOL RHYTHM RES 2019. [DOI: 10.1080/09291016.2019.1594121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ahmed Attia
- Research Unit (UR17JS01), “Sport Performance, Health & Society,” Higher Institute of Sports and Physical Education of Ksar Said, Tunis, Tunisia
| | - Haroun Baaziz
- Research Unit (UR17JS01), “Sport Performance, Health & Society,” Higher Institute of Sports and Physical Education of Ksar Said, Tunis, Tunisia
| | - Ziède Néji
- Research Unit (UR17JS01), “Sport Performance, Health & Society,” Higher Institute of Sports and Physical Education of Ksar Said, Tunis, Tunisia
| | | | - Lilliya G. Petrova
- The National Research University “Belgorod State University”/“BelSU”, Russia
| | - Sabri El Guéied Chortana
- Laboratoire de Physiologie de l’Exercice et Physiopathologie: de l’intégré au moléculaire « Biologie, Médecine et Santé » Faculté de Médecine, Université de Sousse Ibn Jazzar Sousse, Tunisie
| | - Riadh Khalifa
- Research Unit (UR17JS01), “Sport Performance, Health & Society,” Higher Institute of Sports and Physical Education of Ksar Said, Tunis, Tunisia
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Hsouna H, Abdessalem R, Boukhris O, Trabelsi K, Chtourou L, Tahri N, Engel FA, Shephard RJ, Chtourou H. Short-term maximal performance, alertness, dietary intake, sleep pattern and mood states of physically active young men before, during and after Ramadan observance. PLoS One 2019; 14:e0217851. [PMID: 31163075 PMCID: PMC6548427 DOI: 10.1371/journal.pone.0217851] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 05/19/2019] [Indexed: 01/10/2023] Open
Abstract
Purpose To assess changes in short-term maximal performance, alertness, dietary intake, sleep pattern and mood states of physically active young men before (BR), during and after Ramadan observance. Methods Twelve physically-active men (age: 21.9±2.4yrs, height:1.77±0.09m, body-mass: 72.6±7.8kg, exercising: ≥3h/week) performed the 5-jump and the digit-cancellation (alertness) tests 15-days BR, on the first (FR) and last 10-days of Ramadan (ER) and 10-days (AR10) and 20-days (AR20) after Ramadan. During each period, sleep pattern (Pittsburgh-Sleep-Quality-Index (PSQI)), mood states (Profile-of-Mood-States (POMS)) and dietary intake were recorded. Results No significant changes in the 5-jump, digit-cancellation test and POMS parameters appeared during and after Ramadan relative to BR. However, the PSQI total score was lower during FR compared to AR10 (p<0.001). Specifically, the subjective sleep quality was lower (i) at BR compared to FR (p<0.05), AR10 (p<0.01) and AR20 (p<0.01) and (ii) at ER and AR20 compared to FR (p<0.05). The sleep duration (i) increased at FR (p<0.05) and (ii) decreased at AR10 (p<0.01) and AR20 (p<0.05) compared to BR. Sleep disturbances were significantly greater (i) at BR compared to FR (p<0.01), ER (p<0.01), AR10 (p<0.05) and AR20 (p<0.05) and (ii) at AR10 and AR20 compared to FR and ER (p<0.05). In terms of diet, the fractional contribution of carbohydrate (%) was lower and the dietary fat content (g) was higher during ER than AR10 and AR20 (p<0.05). Further, the dietary protein (in %) was significantly lower during FR compared to BR (p<0.01), ER (p<0.05), AR10 (p<0.05) and AR20 (p<0.05). Conclusion Ramadan had no-adverse effects on the 5-jump performance, alertness, or mood states in physically active young men. However, the sleep duration was shorter and the sleep quality was improved following compared to during Ramadan. The fractional intake of fat also increased at the expense of carbohydrate during Ramadan, and the protein intake was lower at the beginning of Ramadan than before, at the end of and after Ramadan.
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Affiliation(s)
- Hsen Hsouna
- UR15JS01: Education, Motricité, Sport et Santé (EM2S), High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Raouf Abdessalem
- UR15JS01: Education, Motricité, Sport et Santé (EM2S), High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Omar Boukhris
- UR15JS01: Education, Motricité, Sport et Santé (EM2S), High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Khaled Trabelsi
- UR15JS01: Education, Motricité, Sport et Santé (EM2S), High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Lassaad Chtourou
- Department of Gastroenterology and Hepatology, Hedi Chaker Hospital, Sfax, Tunisia
| | - Nabil Tahri
- Department of Gastroenterology and Hepatology, Hedi Chaker Hospital, Sfax, Tunisia
| | - Florian A. Engel
- Institute of Sport and Sport Science, Department Movement and Training, Heidelberg University, Heidelberg, Germany
- * E-mail:
| | - Roy J. Shephard
- Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, ON, Canada
| | - Hamdi Chtourou
- Institut Supérieur du Sport et de l’Education Physique de Sfax, Université de Sfax, Sfax, Tunisia
- Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport, Tunis, Tunisia
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Gueldich H, Zghal F, Borji R, Chtourou H, Sahli S, Rebai H. The effects of Ramadan intermittent fasting on the underlying mechanisms of force production capacity during maximal isometric voluntary contraction. Chronobiol Int 2019; 36:698-708. [PMID: 30889992 DOI: 10.1080/07420528.2019.1592183] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The aim of the present study was to investigate the effects of Ramadan intermittent fasting (RIF) on the underlying mechanisms of force production capacity during maximal voluntary isometric contraction (MVIC) using the superimposed twitch technique. Ten healthy male physical education students performed three MVIC of the knee extensor superimposed with nerve electrical stimulation during four testing phases: one week before Ramadan (BR), at the end of the first week of Ramadan (R-1), during the fourth week of Ramadan (R-4) and two weeks after Ramadan (AR). This study was performed during Ramadan 2016. MVIC values, voluntary activation level (VAL), potentiated resting twitch and electromyography signals were recorded during each MVIC. The French version of the Profile of Mood States questionnaire (POMS-f) was used to evaluate the subjective mood states in each testing session. The results showed that MVIC values (890.57 ± 67.90 vs. 816.46 ± 54.72 N) and VAL (87.73 ± 3.27 vs. 77.32 ± 7.87%) decreased at R-1 compared to BR (p < 0.001). However, the neuromuscular efficiency and the potentiated resting twitch remained unchanged during Ramadan (R). Results showed that depression (p < 0.01; 6.3 ± 1.57 vs. 4.7 ± 1.25), fatigue (p < 0.001; 9.2 ± 1.93 vs. 4.6 ± 2.01) and anxiety (p < 0.001; 6.4 ± 1.51 vs. 11.8 ± 1.23) scores of POMS-f were higher during R-1 compared to BR. In conclusion, RIF-related impairment of maximal muscle force seems to be related to nervous alterations of the VAL, whereas the RIF did not adversely affect peripheral mechanisms. Abbreviations' List: ANOVA: Analysis of variance; AR: After Ramadan; BMI: Body-mass index; BR: Before Ramadan; EMG: Electromyography; ER: End of Ramadan; MF: Mean frequency; Mmax: Peak-to-peak M-wave amplitudes; MVIV: Maximal voluntary isometric contraction; NES: Nerve electrical stimulation; NME: Neuromuscular efficiency; POMS-f: French version of the Profile of Mood States questionnaire; R: Ramadan; R-1: First week of Ramadan; R-4: Fourth week of Ramadan; RF: Rectus femoris; RIF: Ramadan intermittent fasting; RMS: Root mean square; VAL: Voluntary activation level; VL: Vastus lateralis; VM: Vastus medialis.
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Affiliation(s)
- Helmy Gueldich
- a Research Unit: Education, Motricité, Sports et Santé (UR UR15JS01) , High Institute of Sports and Physical Activity of Sfax , Sfax , Tunisia
| | - Firas Zghal
- a Research Unit: Education, Motricité, Sports et Santé (UR UR15JS01) , High Institute of Sports and Physical Activity of Sfax , Sfax , Tunisia.,b Université Côte d'Azur , LAMHESS , France
| | - Rihab Borji
- a Research Unit: Education, Motricité, Sports et Santé (UR UR15JS01) , High Institute of Sports and Physical Activity of Sfax , Sfax , Tunisia
| | - Hamdi Chtourou
- c Institut Supérieur du Sport et de l'éducation physique de Sfax , Université de Sfax , Sfax , Tunisie.,d Activité Physique , Sport et Santé, UR18JS01, Observatoire National du Sport , Tunis , Tunisie
| | - Sonia Sahli
- a Research Unit: Education, Motricité, Sports et Santé (UR UR15JS01) , High Institute of Sports and Physical Activity of Sfax , Sfax , Tunisia
| | - Haithem Rebai
- a Research Unit: Education, Motricité, Sports et Santé (UR UR15JS01) , High Institute of Sports and Physical Activity of Sfax , Sfax , Tunisia
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Giles GE, Mahoney CR, Caruso C, Bukhari AS, Smith TJ, Pasiakos SM, McClung JP, Lieberman HR. Two days of calorie deprivation impairs high level cognitive processes, mood, and self-reported exertion during aerobic exercise: A randomized double-blind, placebo-controlled study. Brain Cogn 2019; 132:33-40. [PMID: 30831453 DOI: 10.1016/j.bandc.2019.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/14/2019] [Accepted: 02/18/2019] [Indexed: 02/07/2023]
Abstract
Military personnel and emergency responders perform cognitively-demanding tasks during periods of sustained physical exertion and limited caloric intake. Cognitive function is preserved during short-term caloric restriction, but it is unclear if preservation extends to combined caloric restriction and physical exertion. According to the "reticular-activating hypofrontality" model, vigorous exertion impairs prefrontal cortex activity and associated functions. This double-blind, placebo-controlled, crossover study examined cognitive function during sustained exertion while volunteers were calorically-deprived. Twenty-three volunteers were calorie-depleted for two days on one occasion and fully-fed on another. They completed intermittent bouts of exercise at 40-65% VO2peak while prefrontal cortex-dependent tasks of cognitive control, mood, and perceived exertion were assessed. Calorie deprivation impaired accuracy on the task-switching task of set-shifting (p < .01) and decreased sensitivity on the go/no-go task of response inhibition (p < .05). Calorie deprivation did not affect risk taking on the Rogers risk task. During exercise, calorie deprivation, particularly on day 2, increased perceived exertion (p < .05) and impaired mood states of tension, depression, anger, vigor, fatigue, and confusion (all p < .01). Physical exertion during severe calorie deprivation impairs cognitive control, mood, and self-rated exertion. Reallocation of cerebral metabolic resources from the prefrontal cortex to structures supporting movement may explain these deficits.
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Affiliation(s)
- Grace E Giles
- Cognitive Science and Applications Team, Combat Capabilities Development Command (CCDC) Soldier Center, Natick, MA, USA; Center for Applied Brain and Cognitive Sciences, Tufts University and CCDC Soldier Center, Medford, MA, USA.
| | - Caroline R Mahoney
- Cognitive Science and Applications Team, Combat Capabilities Development Command (CCDC) Soldier Center, Natick, MA, USA; Center for Applied Brain and Cognitive Sciences, Tufts University and CCDC Soldier Center, Medford, MA, USA.
| | - Christina Caruso
- Cognitive Science and Applications Team, Combat Capabilities Development Command (CCDC) Soldier Center, Natick, MA, USA; Center for Applied Brain and Cognitive Sciences, Tufts University and CCDC Soldier Center, Medford, MA, USA.
| | - Asma S Bukhari
- Military Nutrition Division, US Army Research Institute of Environmental Medicine, Natick, MA, USA; Walter Reed National Military Medical Center, Bethesda, MD, USA.
| | - Tracey J Smith
- Military Nutrition Division, US Army Research Institute of Environmental Medicine, Natick, MA, USA.
| | - Stefan M Pasiakos
- Military Nutrition Division, US Army Research Institute of Environmental Medicine, Natick, MA, USA.
| | - James P McClung
- Military Nutrition Division, US Army Research Institute of Environmental Medicine, Natick, MA, USA.
| | - Harris R Lieberman
- Military Nutrition Division, US Army Research Institute of Environmental Medicine, Natick, MA, USA
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Effects of caffeine ingestion on the diurnal variation of cognitive and repeated high-intensity performances. Pharmacol Biochem Behav 2019; 177:69-74. [PMID: 30611752 DOI: 10.1016/j.pbb.2019.01.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 12/21/2018] [Accepted: 01/02/2019] [Indexed: 11/22/2022]
Abstract
The purpose of this study was to evaluate the effects of caffeine ingestion on the daily variation of cognitive (i.e., reaction time (RT), attention) and repeated high-intensity exercise performances. Fifteen active males (age: 20 ± 1 years, height: 174.3 ± 4.3 cm, body-mass: 70.8 ± 3.5 kg) performed cognitive and physical tasks under two different circumstances [after a placebo or caffeine ingestion (6 mg/kg of body-mass)] at six different time-of-day (07 h00, 09 h00, 11 h00, 13 h00, 15 h00 and 17 h00) in a randomized double-blind balanced crossover design. During each session, RT, attention and 5-m multiple shuttles run test' performances were recorded. During both the placebo and the caffeine conditions, a significant diurnal variation was found with improvement of cognitive performances recorded at 11 h00 (e.g., RT: 0.37 ± 0.02-s and 0.36 ± 0.02-s for placebo and caffeine respectively) and 17 h00 (e.g., RT: 0.37 ± 0.02-s and 0.35 ± 0.03-s for placebo and caffeine respectively) compared to (i.e., worst performances) 07 h00 (e.g., RT: 0.41 ± 0.02-s and 0.38 ± 0.02-s for placebo and caffeine respectively) and 13 h00 (e.g., RT: 0.41 ± 0.02-s and 0.38 ± 0.02-s for placebo and caffeine respectively) (p < 0.05). For physical performance, improved values were recorded at 17 h00 (e.g., total distance: 730.00 ± 43.92-m and 733.93 ± 43.08-m for placebo and caffeine respectively) compared to 07 h00 (e.g., total distance: 698.14 ± 45.39-m and 709.21 ± 43.78-m for placebo and caffeine respectively) (p < 0.05). Compared to placebo, cognitive (e.g., RT: by 6.4% at 07 h00, 4.1% at 09 h00, 3.4% at 11 h00, 6.0% at 13 h00, 3.8% at 15 h00 and 3.8% at 17 h00) and physical (e.g., total distance: 1.6% at 07 h00, 0.9% at 09 h00, 0.1% at 11 h00 (p > 0.05), 0.5% at 13 h00, 1.0% at 15 h00 and 0.5% at 17 h00) performances increased at all time-of-day (p < 0.05). In conclusion, cognitive and physical performances are time-of-day dependent and caffeine is an effective ergogenic aid to improves both cognitive and physical performances especially at the moment of their lowest values.
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Boukhris O, Hsouna H, Chtourou L, Abdesalem R, BenSalem S, Tahri N, Trabelsi K, Stannard SR, Chtourou H. Effect of Ramadan fasting on feelings, dietary intake, rating of perceived exertion and repeated high intensity short-term maximal performance. Chronobiol Int 2018; 36:1-10. [PMID: 30207750 DOI: 10.1080/07420528.2018.1513943] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The present study was designed to investigate the effect of Ramadan fasting on feelings, dietary intake, rating of perceived exertion (RPE) and repeated high-intensity short-term maximal performance. Thirteen physically active men (age: 21.2 ± 2.9 years, height: 175.6 ± 5.6 cm, body-mass: 72.4 ± 8.6 kg) performed a 5-m shuttle run test (6 × 30-s + 35-s of recovery in-between) during five experimental periods: fifteen days before Ramadan (BR), the first ten days of Ramadan (FR), the last ten days of Ramadan (ER), ten days after Ramadan (AR10) and 20 days after Ramadan (AR20). The study was carried out in Tunisia during the 2016 Ramadan month. During the 5-m shuttle run test, higher distance (HD), total distance (TD) and fatigue index (FI) were recorded. RPE was determined after a 5-min warm-up and after each repetition of the 5-m shuttle run test (the mean RPE score during the test was calculated). Moreover, a feelings scale (FS) was used after the warm-up and after the end of the 5-m shuttle run test. During the five experimental periods, dietary intake was assessed. The results showed that HD, TD and FI during the 5-m shuttle run test were not affected by Ramadan observance (p > 0.05). Likewise, FS scores recorded after the warm-up and the 5-m shuttle run test were not affected by Ramadan fasting (p > 0.05). However, mean RPE scores during the 5-m shuttle run test were significantly lower at ER (4.06 UA), AR10 (3.86 UA) and AR20 (3.71 UA) in comparison to BR (4.51 UA) (p < 0.05). The results showed also that Ramadan fasting has no adverse effect on energy intake, protein (g and %), fat (g and %) and carbohydrate (g). However, the fractional contribution of carbohydrate was significantly higher AR10 than FR (53.1% vs. 45.8%) and ER (53.1% vs. 46.5%) and AR20 than FR (5.92% vs. 45.8%) (p < 0.05). In conclusion, Ramadan fasting has no adverse effect on feelings, dietary intake, and short-term maximal performance. However, the RPE during repeated high intensity short-term maximal exercise was reduced AR20 in comparison to ER. Abbreviations: AR: After Ramadan; AR10: Ten days after Ramadan; AR20: Twenty days after Ramadan; BR: Fifteen days before Ramadan; ER: Last ten days of Ramadan; FI: Fatigue index; FR: First ten days of Ramadan; FS: Feelings scale; HD: Higher distance; PSQI: The Pittsburgh Sleep Quality Index; RPE: Rating of Perceived Exertion Scale; TD: Total distance.
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Affiliation(s)
- Omar Boukhris
- a UR15JS01: Education, Motricité, Sport et Santé (EM2S), High Institute of Sport and Physical Education , University of Sfax , Tunisia
| | - Hsen Hsouna
- a UR15JS01: Education, Motricité, Sport et Santé (EM2S), High Institute of Sport and Physical Education , University of Sfax , Tunisia
| | - Lassaad Chtourou
- b Department of Gastroenterology and Hepatology , Hedi Chaker Hospital , Sfax , Tunisia
| | - Raouf Abdesalem
- a UR15JS01: Education, Motricité, Sport et Santé (EM2S), High Institute of Sport and Physical Education , University of Sfax , Tunisia
| | - Sahar BenSalem
- a UR15JS01: Education, Motricité, Sport et Santé (EM2S), High Institute of Sport and Physical Education , University of Sfax , Tunisia
| | - Nabil Tahri
- b Department of Gastroenterology and Hepatology , Hedi Chaker Hospital , Sfax , Tunisia
| | - Khaled Trabelsi
- a UR15JS01: Education, Motricité, Sport et Santé (EM2S), High Institute of Sport and Physical Education , University of Sfax , Tunisia
| | - Stephen R Stannard
- c School of Sport and Exercise , Massey University , Palmerston North , New Zealand
| | - Hamdi Chtourou
- a UR15JS01: Education, Motricité, Sport et Santé (EM2S), High Institute of Sport and Physical Education , University of Sfax , Tunisia
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28
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Trabelsi K, Stannard SR, Chtourou H, Moalla W, Ghozzi H, Jamoussi K, Hakim A. Monitoring athletes’ hydration status and sleep patterns during Ramadan observance: methodological and practical considerations. BIOL RHYTHM RES 2017. [DOI: 10.1080/09291016.2017.1368214] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Khaled Trabelsi
- Laboratory of Pharmacology, Faculty of Medicine, University of Sfax, Sfax, Tunisia
| | - Stephen R. Stannard
- School of Sport and Exercise, Massey University, Palmerston North, New Zealand
| | - Hamdi Chtourou
- UR15JS01: Education, Motricity, Sport and Health, High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Wacim Moalla
- UR15JS01: Education, Motricity, Sport and Health, High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Hanène Ghozzi
- Laboratory of Pharmacology, Faculty of Medicine, University of Sfax, Sfax, Tunisia
| | - Kamel Jamoussi
- Department of Biochemistry, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Ahmed Hakim
- Laboratory of Pharmacology, Faculty of Medicine, University of Sfax, Sfax, Tunisia
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29
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Chtourou H, Chtourou L, Trabelsi K, Tahri N, Souissi N. Possible gastrointestinal disorders for athletes during Ramadan: an overview. BIOL RHYTHM RES 2017. [DOI: 10.1080/09291016.2017.1333196] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hamdi Chtourou
- Research Unit: Education, Motricité, Sport et Santé, UR15JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Tunisia
| | - Lassaad Chtourou
- Department of Gastroenterology and Hepatology, Hedi Chaker Hospital, Faculty of Medicine, University of Sfax, Tunisia
| | - Khaled Trabelsi
- Laboratory of Pharmacology, Faculty of Medicine, University of Sfax, Tunisia
| | - Nabil Tahri
- Department of Gastroenterology and Hepatology, Hedi Chaker Hospital, Faculty of Medicine, University of Sfax, Tunisia
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30
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Bouguerra L, Ben Abderrahman A, Chtourou H, Zouhal H, Tabka Z, Prioux J. The effect of time-of-day of training during Ramadan on physiological parameters in highly trained endurance athletes. BIOL RHYTHM RES 2017. [DOI: 10.1080/09291016.2016.1276271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- L. Bouguerra
- Laboratory of Physiology and Functional of Explorations, Faculty of Medicine “IBN EL JAZZAR” Sousse, University of Sousse, Sousse, Tunisia
- Laboratory of biomonitoring of the environment (LR01/ES14), Faculty of Science of Bizerta, University of Carthage, Bizerta, Tunisia
| | - A. Ben Abderrahman
- Laboratory of biomonitoring of the environment (LR01/ES14), Faculty of Science of Bizerta, University of Carthage, Bizerta, Tunisia
- High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University, Tunis, Tunisia
| | - H. Chtourou
- Education, Motricité, Sport et Santé, UR15JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Tunisia
| | - H. Zouhal
- Movement, Sport, and Health Sciences Laboratory, University of Rennes 2, Rennes, France
| | - Z. Tabka
- Laboratory of Physiology and Functional of Explorations, Faculty of Medicine “IBN EL JAZZAR” Sousse, University of Sousse, Sousse, Tunisia
| | - J. Prioux
- Movement, Sport, and Health Sciences Laboratory, University of Rennes 2, Rennes, France
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Aloui A, Chtourou H, Briki W, Tabben M, Chaouachi A, Souissi N, Shephard RJ, Chamari K. Rapid weight loss in the context of Ramadan observance: recommendations for judokas. Biol Sport 2017; 33:407-413. [PMID: 28090146 PMCID: PMC5143776 DOI: 10.5604/20831862.1224098] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 08/27/2015] [Accepted: 10/26/2016] [Indexed: 11/13/2022] Open
Abstract
Judo is a weight-classified combat sport, and many athletes seek to compete at the lightest possible weight category to gain an advantage from competing against shorter/smaller, and supposedly weaker opponents. To achieve a desired weight, most judokas opt for rapid weight loss techniques. Short-duration maximal efforts are not greatly affected by “making weight”, but prolonged and/or repeated exercise is significantly impaired. Negative effects on mood, ratings of perceived exertion, and cognitive function are also reported. Moreover, rapid weight loss reduces maximal cardiac output and glycogen stores, and impairs thermo-regulation. Limited empirical data suggest that Ramadan reduces judokas’ performance, and this is likely to be exacerbated by attempts at rapid weight loss. Weight reduction during Ramadan tends to be counterproductive, and judokas who aim for a lower weight category are advised to attempt any desired reduction of body mass during the weeks leading up to Ramadan, rather than during the holy month.
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Affiliation(s)
- A Aloui
- High Institute of Sport and Physical Education, University of Gafsa, Gafsa, Tunisia
| | - H Chtourou
- Research Unit: Education, Motricité, Sport et Santé, UR15JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Tunisia
| | - W Briki
- Qatar University, College of Arts and Sciences, Sport Science Program, Doha, Qatar
| | - M Tabben
- CETAPS, University of Rouen, Mont Saint Aignan, France
| | - A Chaouachi
- Research Laboratory "Sport Performance Optimization", National Centre of Medicine and Sciences in Sport, Tunis, Tunisia
| | - N Souissi
- National Observatory on Sport, Tunis, Tunisia
| | - R J Shephard
- Faculty of Kinesiology & Physical Education, University of Toronto, Toronto, Canada
| | - K Chamari
- Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Qatar
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Soori M, Mohaghegh S, Hajain M, Moraadi B. Effects of Ramadan Fasting on Inspiratory Muscle Function. Asian J Sports Med 2016; 7:e35201. [PMID: 27826401 PMCID: PMC5098160 DOI: 10.5812/asjsm.35201] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 01/19/2016] [Accepted: 02/07/2016] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Ramadan fasting is a major challenge for exercising Muslims especially in warm seasons. There is some evidence to indicate that Ramadan fasting causes higher subjective ratings of perceived exertion (RPE) in fasting Muslims. The mechanisms of this phenomenon are not known exactly. The role of respiratory muscle strength in this regard has not been studied yet. OBJECTIVES The aim of this study was investigation of the effects of Ramadan fasting on respiratory muscle strength. PATIENTS AND METHODS In a before-after study, from 35 fasting, apparently healthy, male adults who had fasted from the beginning of Ramadan, maximal inspiratory muscle pressure (MIP) and peak inspiratory flow (PIF) were measured in the last week of Ramadan month in summer. At the time of test, there was not any sleep problem in participants and all of them had good cooperation. Three months later, after exclusion of incompatible persons mainly because of change in their physical activity level, smoking behavior or drug consumption, the measurements were repeated in 12 individuals. RESULTS Weight, MIP and PIF data had normal distribution (Kolmogorov-Smirnov Test). There was a significant increase in MIP (mean 8.3 cm H2O with 95% confidence interval of 2.2 - 14.3) and PIF (mean 0.55 lit/s with 95% confidence interval of 0.02 - 1.07) and weight (mean 3.4 Kg with 95% confidence interval of 2.2 - 4.5) after Ramadan (Paired t test with P < 0.05). When weight difference was used as a covariate in repeated measure ANOVA test, there was no further significant difference between MIP and PIF measurements. CONCLUSIONS Ramadan fasting may cause reduction of respiratory muscle strength through reduction of body weight.
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Affiliation(s)
- Mohsen Soori
- Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
| | - Shahram Mohaghegh
- Shahid Beheshti University of Medical Sciences, Tehran, IR Iran
- Corresponding author: Shahram Mohaghegh, Shahid Beheshti University of Medical Sciences, Tehran, IR Iran. Tel: +98-55419005, Fax: +98-55418914, E-mail:
| | - Maryam Hajain
- Ministry of Health of Iran, Community Medicine Specialist, Tehran, IR Iran
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Mhenni T, Michalsik LB, Mejri MA, Yousfi N, Chaouachi A, Souissi N, Chamari K. Morning–evening difference of team-handball-related short-term maximal physical performances in female team handball players. J Sports Sci 2016; 35:912-920. [DOI: 10.1080/02640414.2016.1201212] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Thouraya Mhenni
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport (CNMSS), Tunis, Tunisia
- Faculty of Science, Carthage University, Bizerte, Tunisia
| | - Lars Bojsen Michalsik
- Institute of Sport Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
| | - Mohamed Arbi Mejri
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport (CNMSS), Tunis, Tunisia
- Faculty of Science, Carthage University, Bizerte, Tunisia
- High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University, Tunis, Tunisia
| | - Narimen Yousfi
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport (CNMSS), Tunis, Tunisia
- High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University, Tunis, Tunisia
| | - Anis Chaouachi
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport (CNMSS), Tunis, Tunisia
| | - Nizar Souissi
- Department of Youth and Sports, National Observatory of Sports, Tunis, Tunisia
| | - Karim Chamari
- Athlete Health and Performance Research Center, Aspetar-Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
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Chamari K, Briki W, Farooq A, Patrick T, Belfekih T, Herrera CP. Impact of Ramadan intermittent fasting on cognitive function in trained cyclists: a pilot study. Biol Sport 2015; 33:49-56. [PMID: 26985134 PMCID: PMC4786586 DOI: 10.5604/20831862.1185888] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 04/20/2015] [Accepted: 04/23/2015] [Indexed: 02/05/2023] Open
Abstract
This study assessed selected measures of cognitive function in trained cyclists who observed daylight fasting during Ramadan. Eleven cyclists volunteered to participate (age: 21.6±4.8 years, VO2max: 57.7±5.6 ml kg(-1)·min(-1)) and were followed for 2 months. Cognitive function (Cambridge Neuropsychological Test Automated Battery (CANTAB), Reaction Time index (RTI) and Rapid Visual Information Processing (RVP) tests) and sleep architecture (ambulatory EEG) were assessed: before Ramadan (BR), in the 1st week (RA1) and 4th week of Ramadan (RA4), and 2 weeks post-Ramadan (PR). Both cognitive tests were performed twice per day: before and after Ramadan at 8-10 a.m. and 4-6 p.m., and during Ramadan at 4-6 p.m. and 0-2 a.m., respectively. Training load (TL) by the rating of perceived exertion (RPE) method and wellness (Hooper index) were measured daily. If the TL increased over the study period, this variable was stable during Ramadan. The perceived fatigue and delayed onset muscle soreness (DOMS) increased at RA4. Sleep patterns and architecture showed clear disturbances, with significant increases in the number of awakenings and light sleep durations during Ramadan (RA1 and RA4), together with decreased durations of deep and REM sleep stages at PR. RTI (simple and multiple reaction index) reaction and movement times did not vary over the study period. The RVP test showed reduced false alarms during Ramadan, suggesting reduced impulsivity. Overall accuracy significantly increased at RA1, RA4 and PR compared to baseline. At RA4, the accuracy was higher at 0-2 a.m. compared to 4-6 p.m. Despite the observed disturbances in sleep architecture, Ramadan fasting did not negatively impact the cognitive performance of trained cyclists from the Middle East.
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Affiliation(s)
- K Chamari
- Athletes Health and Performance Research Center (AHP), Aspetar, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - W Briki
- University of French West Indies and Guyana, Department of Sport Sciences, (ACTES) Laboratory, Pointe-à-Pitre, Guadeloupe, France
| | - A Farooq
- Athletes Health and Performance Research Center (AHP), Aspetar, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - T Patrick
- National Sports Medicine Program (NSMP), Aspetar, Doha, Qatar; Sport Performance Research Institute of New Zealand (SPRINZ)
| | - T Belfekih
- National Sports Medicine Program (NSMP), Aspetar, Doha, Qatar
| | - C P Herrera
- Athletes Health and Performance Research Center (AHP), Aspetar, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
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Effects of Intermittent Fasting, Caloric Restriction, and Ramadan Intermittent Fasting on Cognitive Performance at Rest and During Exercise in Adults. Sports Med 2015; 46:35-47. [DOI: 10.1007/s40279-015-0408-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Aloui A, Briki W, Baklouti H, Chtourou H, Driss T, Chaouachi A, Chamari K, Souissi N. Listening to Music during Warming-Up Counteracts the Negative Effects of Ramadan Observance on Short-Term Maximal Performance. PLoS One 2015; 10:e0136400. [PMID: 26301508 PMCID: PMC4547754 DOI: 10.1371/journal.pone.0136400] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 08/03/2015] [Indexed: 11/30/2022] Open
Abstract
Aim The aim of the present study was to examine whether listening to music during warming-up might influence short-term maximal performance (STMP), cognitive anxiety, self-confidence, and enjoyment during Ramadan, and whether these affects might predict STMP. Methods Nine male physical education students (age: 21 ± 1.1 years; height: 1.8 ± 0.04 m; body mass: 83 ± 5 kg) volunteered to participate in the present study. A within-subjects design consisted of four experimental sessions: Two sessions occurred one week before Ramadan and two others took place during Ramadan. They were scheduled at 5 p.m. and were conducted as follows: After a 10-minute warm-up either with or without listening to music, each participant performed a 5-m multiple shuttle run test, after which he was asked to answer items intended to assess his affective state during the experimental task. Results Our findings revealed that STMP was lower during Ramadan than before Ramadan in the no-music condition. Additionally, it was found that STMP was higher in the music condition than in the no-music condition during Ramadan, and that STMP measured before Ramadan did not differ from that measured during Ramadan in the music condition. Regarding affects, the findings revealed that enjoyment was lower during Ramadan than before Ramadan in the music condition, and that cognitive anxiety was lower in the music condition than in the no-music condition before Ramadan. Self-confidence was not influenced by the experimental conditions. Conclusion This study showed that listening to music during warming-up not only would be beneficial for STMP in Ramadan fasters, but also would counteract the negative effects of Ramadan observance on STMP.
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Affiliation(s)
- Asma Aloui
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport, Tunis, Tunisia
- High Institute of Sport and Physical Education of Gafsa, University of Gafsa, Gafsa, Tunisia
| | - Walid Briki
- Qatar University, College of Arts and Sciences, Sport Science Program, Doha, Qatar
- * E-mail:
| | - Hana Baklouti
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport, Tunis, Tunisia
| | - Hamdi Chtourou
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport, Tunis, Tunisia
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia
| | - Tarak Driss
- Laboratoire CeRSM (EA 2931), Equipe de Physiologie, Biomécanique et Imagerie du Mouvement, UFR STAPS, Université Paris Ouest Nanterre La Défense, Nanterre, France
| | - Anis Chaouachi
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport, Tunis, Tunisia
| | - Karim Chamari
- Athlete Health and Performance Research Center, ASPETAR, Qatar Orthopedic and Sports Medicine Hospital, Qatar
| | - Nizar Souissi
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport, Tunis, Tunisia
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Masmoudi L, Gharbi A, Chtourou H, Souissi N. Effect of time of day on soccer specific skills in children: psychological and physiological responses. BIOL RHYTHM RES 2015. [DOI: 10.1080/09291016.2015.1073888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Chaâri N, Frikha M, Mezghanni N, Ayadi J, Chaouachi A, Souissi N. Does post-warm-up rest interval affect the diurnal variation of 30-s Wingate cycle ergometry? BIOL RHYTHM RES 2015. [DOI: 10.1080/09291016.2015.1073477] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Chtourou H, Ammar A, Nikolaidis PT, Abdel Karim O, Souissi N, Chamari K, Chaouachi A. Post-resistance training detraining: time-of-day effects on training and testing outcomes. BIOL RHYTHM RES 2015. [DOI: 10.1080/09291016.2015.1063204] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Chtourou H, Briki W, Aloui A, Driss T, Souissi N, Chaouachi A. Relation entre musique et performance sportive : vers une perspective complexe et dynamique. Sci Sports 2015. [DOI: 10.1016/j.scispo.2014.11.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Baklouti H, Chtourou H, Aloui A, Chaouachi A, Souissi N. Effect of active warm-up duration on morning short-term maximal performance during Ramadan. Libyan J Med 2015; 10:26229. [PMID: 25676856 PMCID: PMC4326401 DOI: 10.3402/ljm.v10.26229] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 01/05/2015] [Indexed: 11/14/2022] Open
Abstract
PURPOSE To examine the effect of active warm-up duration on short-term maximal performance assessed during Ramadan in the morning. METHODS Twelve healthy active men performed four Wingate tests for measurement of peak power and mean power before and during Ramadan at 09:00 a.m. The tests were performed on separate days, after either a 5-min or a 15-min warm-up. The warm-up consisted in pedaling at 50% of the power output obtained at the last stage of a submaximal multistage cycling test. Oral temperature was measured at rest and after warming-up. Furthermore, ratings of perceived exertion were obtained immediately after the Wingate test. RESULTS Oral temperature was higher after the 15-min warm-up than the 5-min warm-up throughout the study. Moreover, peak power and mean power were higher after the 15-min warm-up than the 5-min warm-up before Ramadan. However, during Ramadan, there was no significant difference between the two warm-up durations. In addition, ratings of perceived exertion were higher after the 15-min warm-up than the 5-min warm-up only during Ramadan. CONCLUSIONS There is no need to prolong the warm-up period before short-term maximal exercise performed during Ramadan in the morning.
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Affiliation(s)
- Hana Baklouti
- Research Laboratory 'Sport Performance Optimization', National Center of Medicine and Sciences in Sport, Tunis, Tunisia.,Faculty of Sciences of Bizerte, University of Carthage, Bizerte, Tunisia
| | - Hamdi Chtourou
- Research Laboratory 'Sport Performance Optimization', National Center of Medicine and Sciences in Sport, Tunis, Tunisia.,High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia
| | - Asma Aloui
- Research Laboratory 'Sport Performance Optimization', National Center of Medicine and Sciences in Sport, Tunis, Tunisia.,High Institute of Sport and Physical Education of Gafsa, University of Gafsa, Gafsa, Tunisia;
| | - Anis Chaouachi
- Research Laboratory 'Sport Performance Optimization', National Center of Medicine and Sciences in Sport, Tunis, Tunisia
| | - Nizar Souissi
- Research Laboratory 'Sport Performance Optimization', National Center of Medicine and Sciences in Sport, Tunis, Tunisia
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Baklouti H, Aloui A, Chtourou H, Briki W, Chaouachi A, Souissi N. Does increasing active warm-up duration affect afternoon short-term maximal performance during Ramadan? PLoS One 2015; 10:e0116809. [PMID: 25646955 PMCID: PMC4315438 DOI: 10.1371/journal.pone.0116809] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Accepted: 12/15/2014] [Indexed: 11/19/2022] Open
Abstract
AIM The purpose of this study was to examine the effect of active warm-up duration on short-term maximal performance assessed during Ramadan in the afternoon. METHODS Twelve healthy active men took part in the study. The experimental design consisted of four test sessions conducted at 5 p.m., before and during Ramadan, either with a 5-minute or a 15-minute warm-up. The warm-up consisted in pedaling at 50% of the power output obtained at the last stage of a submaximal multistage cycling test. During each session, the subjects performed two vertical jump tests (squat jump and counter movement jump) for measurement of vertical jump height followed by a 30-second Wingate test for measurement of peak and mean power. Oral temperature was recorded at rest and after warming-up. Moreover, ratings of perceived exertion were obtained immediately after the Wingate test. RESULTS Oral temperature was higher before Ramadan than during Ramadan at rest, and was higher after the 15-minute warm-up than the 5-minute warm-up both before and during Ramadan. In addition, vertical jump heights were not significantly different between the two warm-up conditions before and during Ramadan, and were lower during Ramadan than before Ramadan after both warm-up conditions. Peak and mean power were not significantly different between the two warm-up durations before Ramadan, but were significantly higher after the 5-minute warm-up than the 15-minute warm-up during Ramadan. Moreover, peak and mean power were lower during Ramadan than before Ramadan after both warm-up conditions. Furthermore, ratings of perceived exertion were higher after the 15-minute warm-up than the 5-minute warm-up only during Ramadan. CONCLUSION The prolonged active warm-up has no effect on vertical jump height but impairs anaerobic power assessed during Ramadan in the afternoon.
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Affiliation(s)
- Hana Baklouti
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport, Tunis, Tunisia
| | - Asma Aloui
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport, Tunis, Tunisia
- High Institute of Sport and Physical Education of Gafsa, University of Gafsa, Gafsa, Tunisia
| | - Hamdi Chtourou
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport, Tunis, Tunisia
- High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax, Tunisia
| | - Walid Briki
- University of French West Indies and Guyana, ACTES Laboratory, Pointe-à-Pitre, Guadeloupe, France
| | - Anis Chaouachi
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport, Tunis, Tunisia
| | - Nizar Souissi
- Research Laboratory “Sport Performance Optimization”, National Center of Medicine and Sciences in Sport, Tunis, Tunisia
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Effect of aerobic training on insulin resistance and C-reactive protein (CRP) levels and subcutaneous abdominal in obese women. SPORT SCIENCES FOR HEALTH 2014. [DOI: 10.1007/s11332-014-0181-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Chtourou H, Aloui A, Hammouda O, Souissi N, Chaouachi A. Diurnal variation in long- and short-duration exercise performance and mood states in boys. SPORT SCIENCES FOR HEALTH 2014. [DOI: 10.1007/s11332-014-0190-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chtourou H, Briki W, Hammouda O, Aloui A, Souissi N, Chaouachi A. The effect of the time-of-day of training during Ramadan on soccer players’ chronotype and mood states. SPORT SCIENCES FOR HEALTH 2014. [DOI: 10.1007/s11332-014-0185-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pullinger SA, Brocklehurst EL, Iveson RP, Burniston JG, Doran DA, Waterhouse JM, Edwards BJ. Is there a diurnal variation in repeated sprint ability on a non-motorised treadmill? Chronobiol Int 2013; 31:421-32. [PMID: 24328815 DOI: 10.3109/07420528.2013.865643] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In active males, muscle force production and short-term (<6 s) anaerobic performance are significantly greater in the evening compared with the morning. This diurnal variation is attributed to motivational, peripheral and central factors, and possibly the higher core and muscle temperatures observed in the evening. However, little is known regarding whether diurnal variation on a treadmill also exists in team-sport specific tests of repeated sprint ability (RSA), as would be relevant to football, for example. A controlled laboratory protocol using a non-motorised treadmill has been used to investigate whether daily variation in RSA is present in highly motivated athletes. Twenty active males (mean ± SD: age, 21.0 ± 2.2 yrs; maximal oxygen uptake ([Formula: see text] max), 60.8 ± 4.8 ml kg min(-1); body mass, 77.02 ± 10.5 kg and height, 1.79 ± 0.07 m) volunteered and completed two sessions counterbalanced in order of administration (separated by >48 h): a morning (M, 07:30 h) and evening (E, 17:30 h) session. Both sessions included a 5-min active warm-up on a motorised treadmill at 10 km h(-1) followed by three task-specific warm-up sprints at 50%, 70% and 80%, respectively, on a non-motorised treadmill. During each trial, 10 × 3 s repeated sprints with 30 s recoveries were performed on the non-motorised treadmill. Rectal (Trec) and muscle temperature measurements (Tm) were taken after subjects had reclined for 30 min at the start of the protocol, and again after the active warm-up. Values of heart rate, thermal comfort (TC), rating of perceived exertion (RPE) and effort were measured throughout. Blood samples were taken at rest, after the sprints and 5-min post sprints. Data were analysed using a GLM with repeated measures. Trec and Tm values were higher at rest in the evening than the morning (0.46 °C and 0.57 °C, respectively, p < 0.05). Distance covered, peak power, average power, peak velocity and average velocity all showed significantly higher values in the evening compared with the morning (a range of 3.3-8.3%, p < 0.05), with peak power displaying a statistical trend (0.10 > p > 0.05). All subjects reported maximal values for "effort" for each sprint. There were significant positive correlations between Trec and Tm, Trec and RPE, TC and all measures of RSA performance. However, there was no correlation between fatigue index for peak power output or peak velocity and Trec. In summary, in this population of motivated subjects, time-of-day effects were seen in resting Trec and Tm values and all performance measures of RSA, in partial agreement with past research. The diurnal variation in Trec and Tm cannot fully explain time-of-day oscillations in RSA on a non-motorised treadmill. Although central temperature may provide some endogenous rhythm to human performance, the causal link seems to be due to a multiplicity of components and mechanisms.
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Affiliation(s)
- Samuel A Pullinger
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University , Liverpool , UK
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Chaâri N, Frikha M, Mezghanni N, Masmoudi L, Souissi N. Time-of-day and warm-up durations effects on thermoregulation and anaerobic performance in moderate conditions. BIOL RHYTHM RES 2013. [DOI: 10.1080/09291016.2013.851904] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Effect of static and dynamic stretching on the diurnal variations of jump performance in soccer players. PLoS One 2013. [PMID: 23940589 DOI: 10.1371/journal.pone.0070534.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
PURPOSE The present study addressed the lack of data on the effect of different types of stretching on diurnal variations in vertical jump height - i.e., squat-jump (SJ) and countermovement-jump (CMJ). We hypothesized that dynamic stretching could affect the diurnal variations of jump height by producing a greater increase in short-term maximal performance in the morning than the evening through increasing core temperature at this time-of-day. METHODS Twenty male soccer players (age, 18.6±1.3 yrs; height, 174.6±3.8 cm; body-mass, 71.1±8.6 kg; mean ± SD) completed the SJ and CMJ tests either after static stretching, dynamic stretching or no-stretching protocols at two times of day, 07:00 h and 17:00 h, with a minimum of 48 hours between testing sessions. One minute after warming-up for 5 minutes by light jogging and performing one of the three stretching protocols (i.e., static stretching, dynamic stretching or no-stretching) for 8 minutes, each subject completed the SJ and CMJ tests. Jumping heights were recorded and analyzed using a two-way analysis of variance with repeated measures (3 [stretching]×2 [time-of-day]). RESULTS The SJ and CMJ heights were significantly higher at 17:00 than 07:00 h (p<0.01) after the no-stretching protocol. These daily variations disappeared (i.e., the diurnal gain decreased from 4.2±2.81% (p<0.01) to 1.81±4.39% (not-significant) for SJ and from 3.99±3.43% (p<0.01) to 1.51±3.83% (not-significant) for CMJ) after dynamic stretching due to greater increases in SJ and CMJ heights in the morning than the evening (8.4±6.36% vs. 4.4±2.64%, p<0.05 for SJ and 10.61±5.49% vs. 6.03±3.14%, p<0.05 for CMJ). However, no significant effect of static stretching on the diurnal variations of SJ and CMJ heights was observed. CONCLUSION Dynamic stretching affects the typical diurnal variations of SJ and CMJ and helps to counteract the lower morning values in vertical jump height.
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Jarraya S, Jarraya M, Chtourou H, Souissi N. Diurnal variations on cognitive performances in handball goalkeepers. BIOL RHYTHM RES 2013. [DOI: 10.1080/09291016.2013.811032] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chtourou H, Aloui A, Hammouda O, Chaouachi A, Chamari K, Souissi N. Effect of static and dynamic stretching on the diurnal variations of jump performance in soccer players. PLoS One 2013; 8:e70534. [PMID: 23940589 PMCID: PMC3734300 DOI: 10.1371/journal.pone.0070534] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 06/24/2013] [Indexed: 11/18/2022] Open
Abstract
PURPOSE The present study addressed the lack of data on the effect of different types of stretching on diurnal variations in vertical jump height - i.e., squat-jump (SJ) and countermovement-jump (CMJ). We hypothesized that dynamic stretching could affect the diurnal variations of jump height by producing a greater increase in short-term maximal performance in the morning than the evening through increasing core temperature at this time-of-day. METHODS Twenty male soccer players (age, 18.6±1.3 yrs; height, 174.6±3.8 cm; body-mass, 71.1±8.6 kg; mean ± SD) completed the SJ and CMJ tests either after static stretching, dynamic stretching or no-stretching protocols at two times of day, 07:00 h and 17:00 h, with a minimum of 48 hours between testing sessions. One minute after warming-up for 5 minutes by light jogging and performing one of the three stretching protocols (i.e., static stretching, dynamic stretching or no-stretching) for 8 minutes, each subject completed the SJ and CMJ tests. Jumping heights were recorded and analyzed using a two-way analysis of variance with repeated measures (3 [stretching]×2 [time-of-day]). RESULTS The SJ and CMJ heights were significantly higher at 17:00 than 07:00 h (p<0.01) after the no-stretching protocol. These daily variations disappeared (i.e., the diurnal gain decreased from 4.2±2.81% (p<0.01) to 1.81±4.39% (not-significant) for SJ and from 3.99±3.43% (p<0.01) to 1.51±3.83% (not-significant) for CMJ) after dynamic stretching due to greater increases in SJ and CMJ heights in the morning than the evening (8.4±6.36% vs. 4.4±2.64%, p<0.05 for SJ and 10.61±5.49% vs. 6.03±3.14%, p<0.05 for CMJ). However, no significant effect of static stretching on the diurnal variations of SJ and CMJ heights was observed. CONCLUSION Dynamic stretching affects the typical diurnal variations of SJ and CMJ and helps to counteract the lower morning values in vertical jump height.
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Affiliation(s)
- Hamdi Chtourou
- Research Laboratory Sport Performance Optimization National Center of Medicine and Sciences in Sport (CNMSS), Tunis, Tunisia.
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