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Sex-Based Effects of Branched-Chain Amino Acids on Strength Training Performance and Body Composition. 支链氨基酸对力量训练成绩和身体成分的性别影响
IF 2.2
Sports Pub Date : 2024-10-11 DOI: 10.3390/sports12100275
Antonella Muscella, Maurizio Felline, Santo Marsigliante
{"title":"Sex-Based Effects of Branched-Chain Amino Acids on Strength Training Performance and Body Composition.","authors":"Antonella Muscella, Maurizio Felline, Santo Marsigliante","doi":"10.3390/sports12100275","DOIUrl":"https://doi.org/10.3390/sports12100275","url":null,"abstract":"<p><strong>Background: </strong>Branched-chain amino acids (BCAAs) are widely studied for their effects on muscle recovery and performance.</p><p><strong>Aims: </strong>This study examined the effects of BCAA supplementation on anthropometric data, physical performance, delayed onset muscle soreness (DOMS), and fatigue in recreational weightlifters.</p><p><strong>Methods: </strong>The trial involved 100 participants (50 men and 50 women), randomized into BCAA and placebo groups. Subjects in the BCAA group took five daily capsules of 500 mg L-leucine, 250 mg L-isoleucine, and 250 mg L-valine for six months. A two-way ANOVA was used to analyze the main and interaction effects of sex and treatment.</p><p><strong>Results: </strong>Notable findings include significant improvements in muscle recovery, as indicated by reduced DOMS, particularly in women who showed a decrement of 18.1 ± 9.4 mm compared to 0.8 ± 1.2 mm in the placebo group of a horizontal 100 mm line. Fatigue perception was also significantly lower in the BCAA group, with women reporting a greater decrease (2.6 ± 1.5 scores) compared to the placebo group (0.6 ± 0.7 scores). Strength gains were prominent, especially in men, with a 10% increase in bench press maximum observed in the BCAA group. The interaction between sex and treatment was significant, suggesting sex-specific responses to BCAA supplementation.</p><p><strong>Conclusions: </strong>These results underscore the effectiveness of BCAA supplementation in enhancing muscle recovery, reducing fatigue, and improving strength. This study also highlights sex-specific responses, with women benefiting more in terms of DOMS and fatigue reduction, while men experienced greater strength gains, suggesting a need for tailored supplementation strategies.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"12 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510782/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142512816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Return to Physical Activity in Individuals with Surgical Stomas: A Scoping Review. 手术造口患者恢复体育锻炼:范围审查。
IF 2.2
Sports Pub Date : 2024-10-10 DOI: 10.3390/sports12100273
Andrea-Victoria Mena-Jiménez, Claudio-Alberto Rodríguez-Suárez, Héctor González-de la Torre
{"title":"Return to Physical Activity in Individuals with Surgical Stomas: A Scoping Review.","authors":"Andrea-Victoria Mena-Jiménez, Claudio-Alberto Rodríguez-Suárez, Héctor González-de la Torre","doi":"10.3390/sports12100273","DOIUrl":"https://doi.org/10.3390/sports12100273","url":null,"abstract":"<p><p>In surgically treated individuals with surgical stomas, the return to physical activity is an indicator of quality of life that reflects their well-being. With the aim of synthesizing the available evidence regarding the return to physical activity in individuals with surgical stomas, a scoping review was developed following the methodological approach of the Joanna Briggs Institute and the Preferred Reporting Items for Systematic reviews and Meta-Analyses for Scoping Reviews criteria. Searches were conducted in Medline (PubMed), Scopus, Web of Science, Cinahl, and Lilacs, as well as the meta-search engines TripDatabase and Epistemonikos, using MeSH terms. Included studies were written in Spanish, English, Portuguese, and German, without any limitation on the year of publication. A total of <i>n</i> = 15 studies was included (<i>n</i> = 2 qualitative; <i>n</i> = 2 case reports; <i>n</i> = 1 case series; <i>n</i> = 1 cohort; <i>n</i> = 8 cross-sectional; and <i>n</i> = 1 randomized clinical trial), which showed variability in the quality of the designs. The qualitative studies explored themes such as motivation, beliefs about physical activity, and other lifestyle factors. The case reports described physiological, psychological, and functional implications of returning to physical activity for specific individuals after ostomy surgery. Quantitative studies evaluated the effects of different types of physical activity on quality of life and tolerance to physical activity in these individuals, employing various measurement instruments. In conclusion, the evidence on returning to sports and physical activity after stoma surgery is limited and varied. While studies highlight the importance of social support and self-confidence, they generally lack rigor and primarily focus on adults and oncology patients. There is a need for more research to establish clear guidelines on physical activity type, frequency, and intensity to ensure safe and beneficial outcomes for individuals with stomas.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"12 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511191/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142512815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Specializing When It Counts: Comparing the Dose-Time Effect of Distance Variety between Swimming and Track Running. 在关键时刻发挥专长:比较游泳和田径长跑距离变化的剂量-时间效应。
IF 2.2
Sports Pub Date : 2024-10-09 DOI: 10.3390/sports12100272
Dennis-Peter Born, Jesús J Ruiz-Navarro, Jenny Lorentzen, Glenn Björklund
{"title":"Specializing When It Counts: Comparing the Dose-Time Effect of Distance Variety between Swimming and Track Running.","authors":"Dennis-Peter Born, Jesús J Ruiz-Navarro, Jenny Lorentzen, Glenn Björklund","doi":"10.3390/sports12100272","DOIUrl":"https://doi.org/10.3390/sports12100272","url":null,"abstract":"<p><strong>Objective: </strong>To conduct a longitudinal retrospective analysis, explore the relationship between success at peak performance age and the number of different race distances athletes competed in each year (within-sport distance variety), and compare the dose-time effect of this distance variety throughout the development process between male swimmers and track runners.</p><p><strong>Methodology: </strong>Male swimmers (<i>n</i> = 6033) and track runners (<i>n</i> = 19,278) still competing at peak performance age were ranked, and the number of different race distances was extracted retrospectively for each year until early junior age (13-14-year-old category) from the databases of the European Aquatics and World Athletics federations. Firstly, correlation analysis determined the relationship between ranking at peak performance age and distance variety. Secondly, Poisson distribution provided the probability and dose-time effect of distance variety for becoming an international-class athlete at peak performance age.</p><p><strong>Results: </strong>Generally, correlation analysis revealed low coefficients (<i>r</i> ≤ 0.22) but significant effects (<i>p</i> < 0.001) for larger distance variety and success at peak performance age. Poisson distribution revealed the highest probability of becoming an international-class swimmer when competing in 2-4 race distances at junior age, depending on the primary race distance. The dose-time effect indicated a gradual reduction in the number of race distances as athletes approached peak performance age, narrowing down to 1-2, 2-3, and 3-4 distances for sprint, middle-, and long-distance races, respectively. Track runners exhibited a lower distance variety than swimmers, with a consistent optimum of 1-2 race distances across the age groups.</p><p><strong>Conclusions: </strong>The present findings including data of the most combined race distances for each primary race distance and a comparison between swimming and track running provide new background information to challenge traditional training regimes and help establish new strategies for long-term athlete development.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"12 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511460/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142512817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From Strikers to Keepers: Somatotype of Football Players from Slovakia. 从前锋到守门员:斯洛伐克足球运动员的体型。
IF 2.2
Sports Pub Date : 2024-10-09 DOI: 10.3390/sports12100271
Branislav Kolena, Barbora Šviríková, Mária Vondráková
{"title":"From Strikers to Keepers: Somatotype of Football Players from Slovakia.","authors":"Branislav Kolena, Barbora Šviríková, Mária Vondráková","doi":"10.3390/sports12100271","DOIUrl":"https://doi.org/10.3390/sports12100271","url":null,"abstract":"<p><strong>Background/objectives: </strong>This study aims to analyze and compare the somatotypes of professional football players from Slovakia with a non-athletic population.</p><p><strong>Methods: </strong>Comparative analysis of professional soccer players by their positions, goalkeepers (n = 4; 8%), defenders (n = 16; 32%), strikers (n = 15; 30%), and midfielders (n = 15; 30%), in average age 16.88 ± 1.29 years, based on selected anthropometric parameters, somatotype components, and the resultant somatotype using the Heath-Carter method.</p><p><strong>Results: </strong>The average somatotype of the soccer players was categorized as an ectomorphic mesomorph (40%). Goalkeepers showed significantly greater body height (BH 187.98 ± 3.166 cm) and weight (BW 82.33 ± 4.922 kg) than midfielders (BH 179.25 ± 6.126 cm; <i>p</i> = 0.03; BW 68 ± 6.304 kg; <i>p</i> = 0.014) and strikers (BH 176.04 ± 4.998 cm; <i>p</i> = 0.026; BW 68.93 ± 6.591 kg; <i>p</i> = 0.026). Defenders had significantly greater BH (182.14 ± 4.853 cm; <i>p</i> = 0.026) than strikers. Goalkeepers also had a significantly higher BMI than midfielders (23.28 ± 0.698 vs. 21.14 ± 1.282 kg/m<sup>2</sup>; <i>p</i> = 0.02) and greater epicondylar width of the humerus (EWH 7.36 ± 0.14 cm) compared to strikers (EWH 6.79 ± 0.308 cm; <i>p</i> = 0.014). The average somatotype values identified goalkeepers [2.0-4.1-3.1], defenders [1.6-3.9-3.2], and strikers [1.7-4.2-2.9] as ectomorphic mesomorphs, while midfielders were identified as mesomorph-ectomorphs [1.6-3.7-3.6].</p><p><strong>Conclusions: </strong>The results highlight the importance of somatotype in player position suitability and its impact on physical attributes in football.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"12 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511079/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142512805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Health-Related Quality of Life in Rugby Athletes: The Role of Dietary Supplements and Their Consumption. 橄榄球运动员与健康相关的生活质量:膳食补充剂及其消费的作用。
IF 2.2
Sports Pub Date : 2024-10-08 DOI: 10.3390/sports12100270
Walter Sapuppo, Antonietta Monda, Davide Giacconi, Regina Gregori Grgič, Daniele Saccenti, Claudia Maria Mineo, Vincenzo Monda, Salvatore Allocca, Maria Casillo, Marcellino Monda, Girolamo Di Maio, Marco La Marra
{"title":"Health-Related Quality of Life in Rugby Athletes: The Role of Dietary Supplements and Their Consumption.","authors":"Walter Sapuppo, Antonietta Monda, Davide Giacconi, Regina Gregori Grgič, Daniele Saccenti, Claudia Maria Mineo, Vincenzo Monda, Salvatore Allocca, Maria Casillo, Marcellino Monda, Girolamo Di Maio, Marco La Marra","doi":"10.3390/sports12100270","DOIUrl":"https://doi.org/10.3390/sports12100270","url":null,"abstract":"<p><p>This study investigates dietary supplement use among rugby players and their general health, focusing on prevalence and underlying motivations. Involving 92 athletes, it examines the relationship between supplement usage, motivations, and health outcomes using the 36-item Short Form Health Survey and a 24-item ad hoc questionnaire. Findings reveal a high frequency of supplement usage, motivated by desires to enhance performance, appearance, and mood. Significant differences in health-related quality of life are found between users and non-users, particularly in mental health, social functioning, and emotional stability. Motivations like performance enhancement and body shape manipulation were linked to altered health perceptions, indicating the psychosocial impacts of supplementation. This study emphasizes the need to consider the holistic effects of supplements on athlete well-being, advocating for a balanced approach prioritizing both physical and mental health. It calls for increased awareness among athletes, coaches, and sports professionals about the potential risks and benefits of supplement use and the importance of informed decision-making. Additionally, it highlights the need for further research to understand the mechanisms of supplement use and its impact on athlete health, aiming to enhance sports science and promote overall athlete well-being in competitive environments.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"12 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511494/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142512806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Low Energy Availability Risk Is Associated with Anxiety in Female Collegiate Athletes. 低能量可用性风险与女大学生运动员的焦虑有关。
IF 2.2
Sports Pub Date : 2024-10-08 DOI: 10.3390/sports12100269
Jennifer L Scheid, Sabrina Basile, Sarah L West
{"title":"Low Energy Availability Risk Is Associated with Anxiety in Female Collegiate Athletes.","authors":"Jennifer L Scheid, Sabrina Basile, Sarah L West","doi":"10.3390/sports12100269","DOIUrl":"https://doi.org/10.3390/sports12100269","url":null,"abstract":"<p><p>This study investigated the association between the risk of low energy availability, disordered eating, and anxiety in collegiate female athletes. Female athletes (<i>n</i> = 115) completed questionnaires that assessed disordered eating (Disordered Eating Screen for Athletes, DESA-6; and the Eating Disorder Examination Questionnaire Short, EDE-QS), anxiety (Generalized Anxiety Disorder-7) and the risk of low energy availability (Low Energy Availability in Females Questionnaire; LEAF-Q). The athletes were 19.9 ± 0.1 years old and presented with no anxiety (14.8%), mild (33.0%), moderate (24.3%), and severe (27.8%) anxiety. The EDE-QS scores revealed that 22.6% of the participants had a high risk of an eating disorder, while the DESA-6 scores revealed that 31.3% of the participants scored positive for a risk of disordered eating. The LEAF-Q total scores revealed that 68.7% of the participants were at risk of low energy availability. Increased GAD-7 scores were associated (<i>p</i> < 0.001) with measures of disordered eating (EDE-QS and DESA-6) and the risk of low energy availability (LEAF-Q total score). Non-parametric partial correlations demonstrated that anxiety (increased GAD-7 scores) correlated with the risk of low energy availability (increased LEAF-Q total scores) while controlling for eating disorder scores (EDE-QS) (r (112) = 0.353, <i>p</i> < 0.001), or while controlling for the risk of disordered eating (DESA-6 scores) (r (112) = 0.349, <i>p</i> < 0.001). In female collegiate athletes, both disordered eating and the risk of low energy availability were positively associated with increased anxiety.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"12 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510784/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142516748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Isometric Force-Time Curve Assessment: Accuracy, Precision, and Repeatability of a Mobile Application and Portable and Lightweight Device. 等长力-时间曲线评估:移动应用程序和便携轻便设备的准确性、精确性和可重复性。
IF 2.2
Sports Pub Date : 2024-10-07 DOI: 10.3390/sports12100268
Dario Santos, Alfredo Bravo-Sánchez, Leonardo Alexandre Peyré-Tartaruga, Franco Simini, Rodrigo Zacca
{"title":"Isometric Force-Time Curve Assessment: Accuracy, Precision, and Repeatability of a Mobile Application and Portable and Lightweight Device.","authors":"Dario Santos, Alfredo Bravo-Sánchez, Leonardo Alexandre Peyré-Tartaruga, Franco Simini, Rodrigo Zacca","doi":"10.3390/sports12100268","DOIUrl":"https://doi.org/10.3390/sports12100268","url":null,"abstract":"<p><p>Strength assessment is one of the main fields in sports performance, physical rehabilitation, physical activity, and health. We aimed to compare maximal voluntary isometric contractions (MVICs) and paired voluntary isometric contractions (VICs) of knee extensors between an isokinetic dynamometer (BIODEX) and a portable and lightweight device (DINABANG). From 19 volunteers (age: 28.7 ± 7 years; body mass: 72 ± 10 kg; and height: 173 ± 7 cm) we obtained 114 paired MVIC measures and, from the force-time curves of these repetitions, 22,507 paired VIC measures of knee extensors. We observed \"excellent\" repeatability for MVICs (ICC:1.00; <i>p</i> < 0.001) between BIODEX (247 ± 79.5 Nm) and DINABANG (247 ± 74.8 Nm), with \"trivial\" effect (mean difference: 0.12 Nm (0.02%); 95%CI: -0.13 to 0.23 Nm; <i>p</i> = 0.606; d = 0.048). Bland-Altman plots revealed high accuracy for MVIC (bias: 0.12 Nm) and consistent distribution (precision) inside the limits of agreement (-4.81 to 5.06 Nm) and respective 95%CI. \"Excellent\" repeatability was also observed for VICs (ICC:1.00; <i>p</i> < 0.001) between BIODEX (219 ± 84.1 Nm) and DINABANG (218 ± 84.0 Nm), with \"trivial\" effect (0.24 Nm (0.11%); 0.08 to 0.11 Nm; <i>p</i> < 0.001; d = 0.100). Bland-Altman plots revealed high accuracy for VICs (bias: 0.24 Nm) and consistent distribution (precision) inside the limits of agreement (-4.5 to 4.9 Nm) and respective 95%CI. DINABANG is accurate, precise, and reliable in torque measurement.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"12 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511426/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142512808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Emotional Intelligence and Burnout among Adolescent Basketball Players: The Mediating Effect of Emotional Labor. 青少年篮球运动员的情商与职业倦怠:情感劳动的中介效应。
IF 2.2
Sports Pub Date : 2024-09-29 DOI: 10.3390/sports12100266
Wenjun Xue, Yiming Tao, Yangyi Huang, Guannan Liu, Huiru Wang
{"title":"Emotional Intelligence and Burnout among Adolescent Basketball Players: The Mediating Effect of Emotional Labor.","authors":"Wenjun Xue, Yiming Tao, Yangyi Huang, Guannan Liu, Huiru Wang","doi":"10.3390/sports12100266","DOIUrl":"https://doi.org/10.3390/sports12100266","url":null,"abstract":"<p><p>Burnout, characterized by emotional and physical exhaustion, poses a significant challenge to adolescent athletes, particularly in high-intensity sports like basketball. Emotional Intelligence (EI) is the ability to manage emotions, which is negatively associated with burnout. Emotional labor, including strategies of surface acting (SA), deep acting (DA), and genuine expression (GE), plays a potentially key role in emotion management between EI and burnout for athletes. This study aims to investigate the relationship between EI and burnout, as well as the mediating role of emotional labor strategies among adolescent basketball players. Our cross-sectional study, conducted in youth sports schools in four different places in China, involved 260 basketball players. Results indicate a negative association between EI and burnout, with SA and GE emerging as significant mediators. SA was positively linked to burnout, while GE showed a negative association. These findings suggest that enhancing EI and managing emotional labor strategies are crucial for mitigating burnout and improving the well-being and performance of young athletes.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"12 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511296/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142512804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Association of Competitive Adolescent Athletes from Lean and Non-Lean Sports Physical, Social and Psychological Characteristics with Adherence to Mediterranean Diet. 精益和非精益运动青少年竞技运动员的生理、社会和心理特征与坚持地中海饮食的关系。
IF 2.2
Sports Pub Date : 2024-09-29 DOI: 10.3390/sports12100267
Fani Thoma, Eirini Koidou, Christina Dolopikou, Vassilis Barkoukis, Constantinos Giaginis, Sousana K Papadopoulou
{"title":"Association of Competitive Adolescent Athletes from Lean and Non-Lean Sports Physical, Social and Psychological Characteristics with Adherence to Mediterranean Diet.","authors":"Fani Thoma, Eirini Koidou, Christina Dolopikou, Vassilis Barkoukis, Constantinos Giaginis, Sousana K Papadopoulou","doi":"10.3390/sports12100267","DOIUrl":"https://doi.org/10.3390/sports12100267","url":null,"abstract":"<p><p>Mediterranean diet (MD) is regarded as one of the healthier dietary patterns which is recommended for athletes. This study aims to investigate the adherence to the Mediterranean diet (AMD) and associated beliefs in a large, diverse sample of competitive adolescent athletes from various sports, including both lean and non-lean sports. Additionally, the study examines factors important regarding intention to AMD within the Theory of Planned Behavior (TPB). In the study took part 711 adolescents (357 male, aged = 14.93 ± 1.38, and 354 female, aged = 14.85 ± 1.35) athletes. The level of AMD was not a significant different between lean (mean = 4.98, SD = ±3.90) and non-lean (mean = 4.77, SD = ±3.68) sport. According to the sport type the 35% of lean sport athletes demonstrated low AMD, 34.1% moderate adherence and 30.9% a high degree. The non lean athletes demonstrated low AMD in 36.3%, moderate adherence 33% and high degree in 30.7%. The results of the mediation analysis indicated a significant mediation effect of intention in the relationship between TPB variables and MD. Based on the results of the study the type of sport does not play a role in the AMD, which, as in the general population, is low. Also validate the TPB and underscore the significance of targeting individuals' intentions to promote positive dietary behaviors.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"12 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11511499/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142512802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Update of the Promise of Glycine Supplementation for Enhancing Physical Performance and Recovery. 补充甘氨酸以提高运动表现和恢复能力的最新进展。
IF 2.2
Sports Pub Date : 2024-09-25 DOI: 10.3390/sports12100265
Arnulfo Ramos-Jiménez, Rosa Patricia Hernández-Torres, David Alfredo Hernández-Ontiveros, Melinna Ortiz-Ortiz, Reymond Josué López-Fregoso, José Miguel Martínez-Sanz, Genaro Rodríguez-Uribe, Marco Antonio Hernández-Lepe
{"title":"An Update of the Promise of Glycine Supplementation for Enhancing Physical Performance and Recovery.","authors":"Arnulfo Ramos-Jiménez, Rosa Patricia Hernández-Torres, David Alfredo Hernández-Ontiveros, Melinna Ortiz-Ortiz, Reymond Josué López-Fregoso, José Miguel Martínez-Sanz, Genaro Rodríguez-Uribe, Marco Antonio Hernández-Lepe","doi":"10.3390/sports12100265","DOIUrl":"https://doi.org/10.3390/sports12100265","url":null,"abstract":"<p><p>Glycine, the simple amino acid, is a key component of muscle metabolism with proven cytoprotective effects and hypothetical benefits as a therapeutic nutrient. Cell, in vitro, and animal studies suggest that glycine enhances protection against muscle wasting by activating anabolic pathways and inhibiting proteolytic gene expression. Some evidence indicates that glycine supplementation may enhance peak power output, reduce lactic acid accumulation during high-intensity exercise, and improve sleep quality and recovery. This literature review critically explores glycine's potential as an ergogenic aid and its relevance to muscle regeneration, muscle strength, endurance exercise performance, and sleep quality. It also underscores key areas for future research. It is concluded that more randomized controlled clinical trials in humans are needed to confirm glycine's potential as a dietary supplement to support muscle function, recovery, and overall athletic performance as an ergogenic aid and to establish nutritional recommendations for athletic performance. Also, it is essential to consider that high doses (>500 mg/kg of body mass) could induce cytotoxic effects and contribute to acute glutamate toxicity.</p>","PeriodicalId":53303,"journal":{"name":"Sports","volume":"12 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11510825/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142516747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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