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Sebastiá-Rico J, Soriano JM, Sanchis-Chordà J, Alonso-Calvar M, López-Mateu P, Romero-García D, Martínez-Sanz JM. Dietary Habits of Elite Soccer Players: Variations According to Competitive Level, Playing Position and Sex. Nutrients 2023; 15:4323. [PMID: 37892399 PMCID: PMC10609682 DOI: 10.3390/nu15204323] [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: 08/31/2023] [Revised: 09/28/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
Soccer is a sport practiced worldwide by both men and women, where nutrition plays a fundamental role in the performance of soccer players, providing them with the nutrients necessary for energy, muscle recovery and injury prevention. The aim of this study is to describe the dietary habits in elite soccer players and their association with their competitive level, playing position and sex. A descriptive and non-experimental comparative study was conducted during the 2021-2022 competitive season. A total of 105 players belonging to a Spanish elite soccer team completed a food frequency questionnaire (FCFQ). It was observed that male players presented a higher consumption of carbohydrate-rich foods (p < 0.05), fermented foods (p = 0.014), frozen foods (p = 0.049) and red meat (p = 0.012) compared to female players, with the exception of lean meats, which were higher in females (p = 0.012). Furthermore, the U16-15 categories stand out for consuming carbohydrate-rich foods such as pasta (p = 0.000), bread (p = 0.004) and sweets (p = 0.046), as well as frozen foods (p = 0.002). Finally, alcohol consumption is higher in the senior categories (42.9%), where men are more likely to drink mixed drinks (6.2%), and beer and wine by women (10.7%). Practically no differences were found between the playing positions. In conclusion, differences were found in FCFQ according to competitive level and sex.
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Affiliation(s)
- Jaime Sebastiá-Rico
- Area of Nutrition, University Clinic of Nutrition, Physical Activity and Physiotherapy (CUNAFF), Lluís Alcanyís Foundation—University of Valencia, 46020 Valencia, Spain;
- Food and Nutrition Research Group (ALINUT), University of Alicante, 03690 Alicante, Spain
- Food & Health Lab, Institute of Materials Science, University of Valencia, 46980 Paterna, Spain
| | - Jose M. Soriano
- Food & Health Lab, Institute of Materials Science, University of Valencia, 46980 Paterna, Spain
- Joint Research Unit of Endocrinology, Nutrition and Clinical Dietetics, Health Research Institute La Fe—University of Valencia, 46026 Valencia, Spain
| | | | - Miguel Alonso-Calvar
- Area of High Conditional Performance, Academia Valencia CF SAD, 46980 Paterna, Spain
| | - Pedro López-Mateu
- Area of Medical Services, Academia Valencia CF SAD, 46980 Paterna, Spain
| | - David Romero-García
- Food and Nutrition Research Group (ALINUT), University of Alicante, 03690 Alicante, Spain
| | - José Miguel Martínez-Sanz
- Food and Nutrition Research Group (ALINUT), University of Alicante, 03690 Alicante, Spain
- Nursing Department, Faculty of Health Sciences, University of Alicante, 03690 Alicante, Spain
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Yang J, Han Q, Liu Q, Li T, Shao Y, Sui X, Wang Q. Effects of carbohydrate drinks ingestion on executive function in athletes: a systematic review and meta-analysis. Front Psychol 2023; 14:1183460. [PMID: 37637918 PMCID: PMC10448191 DOI: 10.3389/fpsyg.2023.1183460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/31/2023] [Indexed: 08/29/2023] Open
Abstract
Background Carbohydrates are often used as boosters for endurance and high-intensity exercise. However, it is unclear whether carbohydrate drinks intake before or during exercise can affect specific domains of cognitive function, such as Executive Function (EF). Methods Following the guidance of PRISMA 2020, we searched six major databases including PubMed, WOS, SPORTDiscus, Cochrane, Embase, and Scopus. Outcomes were presented in the form of Reaction Time (RT), Accuracy (ACC), and Scores (Score) for performing EF tests. Effect sizes were calculated from the test results of EF and expressed as standardized mean differences (SMDs). After analyzing the overall results, we performed subgroup analyses based on the athletes' program characteristics. Results After retrieving a total of 5,355 articles, ten randomized controlled trials (RCTs) were identified and included in this review. The overall results showed that the intake of carbohydrate drinks before or during exercise did not have a significant effect on the reduction of EF after exercise (ACC (-0.05 [-0.27, 0.18]); RT (-0.18 [-0.45, 0.09]); Score (0.24 [-0.20, 0.68])). The subgroup analyses based on open skill sports and close skill sports also showed invalid results, but the results of RT ended up with different preference (ACC of open skill sports athletes (-0.10 [-0.34, 0.14]); RT of open skill athletes (-0.27 [-0.60, 0.07]); RT of close skill athletes (0.29 [-0.24, 0.82])). Conclusion The intake of 6-12% of single or mixed carbohydrates before or during exercise was not significantly effective in reducing the decline in EF after exercise. Our findings may have been influenced by the type of intervention, dose, mode of administration, or individual variability of the included subjects.
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Affiliation(s)
- Jingye Yang
- College of Exercise Science, Beijing Sport University, Beijing, China
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing, China
| | - Qi Han
- College of Exercise Science, Beijing Sport University, Beijing, China
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing, China
| | - Qi Liu
- College of Exercise Science, Beijing Sport University, Beijing, China
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing, China
| | - Tieying Li
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing, China
| | - Yongcong Shao
- School of Psychology, Beijing Sport University, Beijing, China
| | - Xuemei Sui
- Arnold School of Public Health, Department of Exercise Science, University of South Carolina, Columbia, SC, United States
| | - Qirong Wang
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing, China
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Wang J, Liu Q, Kim K, Wang Y. STRENGTH TRAINING ON SOCCER PLAYERS’ KICKING STABILITY. REV BRAS MED ESPORTE 2023. [DOI: 10.1590/1517-8692202329012022_0586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
ABSTRACT Introduction: The physical condition of soccer players in sports competitions has improved over the years. The optimal performance of their professional skills in competitive conditions has become essential for victory in soccer matches. Objective: This paper explores the effects of different methods employing strength training on soccer kicking techniques aiming at the set that best enables the accuracy of hits through its stability. Methods: 36 soccer players were randomly divided into the experimental and control groups, with no statistical difference in fitness and the comprehensive ability characteristics of the players. Both subjects were trained for 12 weeks; only the experimental group received the special strength training intervention for stability. The passing score of the curve ball in 20-meter dribbling was measured before and after training. The data were statistically treated. Results: The kicking accuracy of soccer players in the experimental group differed from before the test (P<0.01). There was also a significant difference in kicking accuracy in the control group (P<0.05). The 20-meter arc dribbling scores in the experimental group were statistically significant compared to those before the test (P<0.05). There was no significant difference between the control group and the test scores on curve ball passing scores in 20-meter dribbling (P>0.05). Conclusion: Functional strength methods to achieve the goal of improving kicking accuracy in athletes have been developed. Coaches should pay attention to physical training, an attitude that encourages players to achieve sufficient physical strength for soccer games with their kicking skills. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
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Zhu Y, Sun F, Tao S, Cooper SB, Gao TY. Association between nutritional status, physical fitness and executive functions in preadolescents: A person-centered approach. Front Pediatr 2022; 10:966510. [PMID: 36324818 PMCID: PMC9618937 DOI: 10.3389/fped.2022.966510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
Objective In the current study, a person-centered approach was adopted to investigate the relationship between nutritional status and physical fitness profiles and executive functions (EF) in preadolescents. Methods Participants (M age = 10.8 years; Male = 50.8%) were recruited from two primary schools in Hong Kong. Nutritional status [body mass index (BMI)], physical fitness including cardiorespiratory fitness (CRF, predicted VO2max, multi-stage fitness test) and speed-agility (20-m sprint) were measured on school days. EF performance was measured using the Flanker task (inhibition) and the Sternberg task (working memory). Results Data from 120 preadolescents were considered valid. Three distinct profiles were identified by a person-centered approach. Profile 1 was featured by high BMI (21.61 ± 3.38 kg/m2), poor VO2max (33.29 ± 23.96 ml/kg/min), and slow 20-m sprint (4.51 ± 0.13 s). Profile 2 was featured by low BMI (15.99 ± 3.38), fair VO2max (44.98 ± 23.96) and fast 20-m sprint (3.97 ± 0.13). Profile 3 was featured by low BMI (15.63 ± 3.38), poor VO2max (32.37 ± 23.96), and slow 20-m sprint (4.48 ± 0.13). Wald chi-square test revealed preadolescents in profile 1 and profile 2 performed better than profile 3 in accuracy of Flanker task (1 vs. 3: χ 2 = 12.23, P < 0.001; 2 vs. 3: χ 2 = 10.86, P = 0.001). That is, for normal weight preadolescents with poor CRF and speed-agility, those with superior nutritional status performed better in inhibition. For normal weight preadolescents with poor nutritional status, those with superior CRF and speed-agility had better inhibitory capacity. Conclusion Compared to the commonly used variable-centered approach, this person-centered approach is a valuable addition that expands the understanding of the association between nutritional status, physical fitness and EF in preadolescents. Results are discussed with regards to maximizing health behaviors and implications for educational policy.
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Affiliation(s)
- Yuxin Zhu
- Syns Institute of Educational Research, Hong Kong, Hong Kong SAR, China
| | - Fenghua Sun
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Sisi Tao
- Centre for Information Technology in Education, Faculty of Education, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Simon B. Cooper
- Exercise / Health Research Group, Sport, Health and Performance Enhancement (SHAPE) Research Centre, Department of Sport Science, Nottingham Trent University, Nottingham, United Kingdom
| | - Tian-Yu Gao
- School of Physical Education, Jinan University, Guangzhou, China
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Associations of Device-Measured Physical Activity, Sedentary Behavior, and Executive Function in Preadolescents: A Latent Profile Approach. Pediatr Exerc Sci 2022; 35:77-83. [PMID: 35894896 DOI: 10.1123/pes.2022-0016] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 04/29/2022] [Accepted: 06/08/2022] [Indexed: 11/18/2022]
Abstract
PURPOSE This study investigated the associations between physical activity (PA), sedentary behavior, and executive function in preadolescents. METHODS One hundred and twenty preadolescents were recruited from 2 Hong Kong primary schools. PA and sedentary behavior were recorded for 7 consecutive days by accelerometer. Executive function performance, including inhibition (Stroop task and Flanker task) and working memory (Sternberg paradigm task), were measured. Body mass index and cardiorespiratory fitness (multistage fitness test) were tested. Latent profile analysis explored the profiles of PA and sedentary behavior in preadolescents. RESULTS Three distinct profiles were identified: low activity, average activity, and high activity. Participants in low activity performed worse in the accuracy of Stroop task (vs average activity, P = .03; vs high activity, P < .01), Flanker task (vs average activity, P = .02; vs high activity, P < .001), and Sternberg paradigm task (vs average activity, P < .01; vs high activity, P < .01). No significant difference was observed between participants with average and high activities. No significant association was observed for profiles on body mass index and cardiorespiratory fitness. CONCLUSION Supplementing the consensus of the literature that moderate to vigorous PA benefits cognition, the authors conclude that light PA may also enhance preadolescents' executive functioning.
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Zhu Y, Sun F, Li C, Huang J, Hu M, Wang K, He S, Wu J. Acute effects of mindfulness-based intervention on athlete cognitive function: An fNIRS investigation. J Exerc Sci Fit 2022; 20:90-99. [PMID: 35154333 PMCID: PMC8804186 DOI: 10.1016/j.jesf.2022.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Mindfulness-based intervention (MBI) as a psychological treatment is adopted in the sports field, but its effect during competition has not been explored. This study investigated the acute effect of a brief MBI on athletes' cognitive function after a 45-min, lab-based soccer protocol. METHODS In a single-blind randomized counter-balanced crossover design, 17 male soccer players completed two main trials-an MBI trial and a control trial. The MBI trial was provided with a brief MBI after 45-min exercise; the control trial was instead assigned a travel-related audio to listen to at that time. In each main trial, cognitive function (i.e., Stroop task for inhibition; Corsi-block tapping task for working memory), salivary cortisol, blood lactate and mental fatigue were measured at baseline (pretest) and after the intervention (posttest). The cerebral oxygenation status was recorded using functional near-infrared spectroscopy during the cognitive function test. RESULTS The brief MBI improved working memory performance in terms of both reaction time (pre vs. post, P = 0.02, d = 0.71) and accuracy (pre vs. post, P = 0.009, d = 0.58), supported by eliciting increased oxyhemoglobin concentration in the prefrontal cortex of the brain. Whereas a slightly better cognitive performance for MBI trial than control trial at posttest (P = 0.37, d = 0.32) accompanied by a lower oxyhemoglobin concentration. A lower mental fatigue level (P = 0.05, d = 0.6) and lower cortisol concentration (P = 0.04, d = 0.65) were observed in the MBI trial than in the control trial after the intervention at posttest. The decreased cortisol concentration correlated with increased inhibition performance in the MBI trial. CONCLUSION The acute effect of MBI on athletes' mental fatigue and cortisol concentration was detected, and the beneficial effect on working memory was preliminarily supported. In general, MBI is recommended to be adopted at half-time of a soccer game.
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Affiliation(s)
- Yuxin Zhu
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong SAR, China
| | - Fenghua Sun
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong SAR, China
| | - Chunxiao Li
- School of Physical Education and Sports Science, South China Normal University, Guangzhou, China
| | - Junhao Huang
- Guangdong Provincial Key Laboratory of Sports and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
| | - Min Hu
- Guangdong Provincial Key Laboratory of Sports and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
| | - Kangle Wang
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong SAR, China
| | - Shan He
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong SAR, China
| | - Jiarui Wu
- Guangdong Provincial Key Laboratory of Sports and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
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Zhu Y, Sun F, Li C, Chow DHK. Acute Effects of Brief Mindfulness Intervention Coupled with Carbohydrate Ingestion to Re-Energize Soccer Players: A Randomized Crossover Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E9037. [PMID: 33291535 PMCID: PMC7731386 DOI: 10.3390/ijerph17239037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/01/2020] [Accepted: 12/01/2020] [Indexed: 12/17/2022]
Abstract
Background: This field experiment investigated the acute effects of brief mindfulness-based intervention (MBI) coupled with carbohydrate (CHO) intake on players' recovery from half-time break in a simulated soccer competition. Methods: In a single-blinded randomized crossover experiment, 14 male players received 3 treatments (Control: non-carbohydrate solution + travelling introduction audio; CHO: CHO-electrolyte solution + travelling introduction audio; and CHO_M: CHO-electrolyte solution + MBI) during simulated half-time breaks. Vertical jump, sprint performance, mindfulness level, rate of perceived exertion, muscle pain, mental fatigue, blood glucose, and lactate were measured immediately before, during, and after the exercise. Results: (1) MBI significantly increased participants' mindfulness level (Control vs. CHO_M, p < 0.01; CHO vs. CHO_M, p < 0.01) and decreased mental fatigue for CHO_M condition (pre vs. post, p < 0.01); (2) participants in the CHO_M condition performed better in the repeated sprint tests than in the Control and CHO condition (Control vs. CHO_M, p = 0.02; CHO vs. CHO_M, p = 0.02). Conclusion: Findings of this study provide preliminary evidence of the positive effect of MBI coupled with CHO ingestion on athletes' recovery from fatigue in the early stage of the second half of a game.
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Affiliation(s)
- Yuxin Zhu
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong, China; (Y.Z.); (D.H.K.C.)
| | - Fenghua Sun
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong, China; (Y.Z.); (D.H.K.C.)
| | - Chunxiao Li
- School of Physical Education & Sports Science, South China Normal University, Guangzhou 510631, China;
| | - Daniel Hung Kay Chow
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong, China; (Y.Z.); (D.H.K.C.)
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Zhu Y, Sun F, Li C, Chow DHK, Wang K. Acute Effect of Brief Mindfulness-Based Intervention Coupled with Fluid Intake on Athletes' Cognitive Function. J Sports Sci Med 2020; 19:753-760. [PMID: 33239950 PMCID: PMC7675633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 11/10/2020] [Indexed: 06/11/2023]
Abstract
During the half time of intermittent team sports, substantial physiological changes relating to acid-base balance and glycemic response affect the second-half performance. Refuel and rehydrate strategy is therefore necessary to be investigated. This field experiment assessed the acute effect of a brief mindfulness-based intervention (MBI) coupled with fluid intake on players' cognitive function in a simulated soccer game. In a single-blinded, randomized, cross-over experiment, 14 male players received three treatments [Control: noncarbohydrate solution + traveling introduction audio; CHO: Carbohydrate (CHO)-electrolyte solution + traveling introduction audio; and CHO-M: CHO-electrolyte solution + MBI] during a simulated half-time break of a soccer game. Participants' mindfulness level, blood glucose and lactate, rating of perceived exertion, and cognitive function performance assessed by the Stroop effect task (ST), Corsi block-tapping test (CBT), and rapid visual information processing task (RVIPT) were immediately measured before, during, and after the trial. Repeated measure ANOVA was used for statistical analysis. The results revealed that: (1) in ST, the CHO_M group performed better than the Control group and marginally better than the CHO group; (2) in CBT, both the Control group and CHO-M group responded faster in the posttest than in the pretest; however, the performance of the CHO group remained the same; (3) the CHO group spent less time on missing numbers in post RVIPT compared with the other two groups. In conclusion, findings of this study provided a preliminary evidence of the positive effect of MBI coupled with CHO intake on athletes' cognitive function, with both positive and negative effect of CHO ingestion.
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Affiliation(s)
- Yuxin Zhu
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong, China
| | - Fenghua Sun
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong, China
| | - Chunxiao Li
- School of Physical Education & Sports Science, South China Normal University, Guangzhou, China
| | - Daniel H K Chow
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong, China
| | - Kangle Wang
- Department of Health and Physical Education, The Education University of Hong Kong, Hong Kong, China
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