International journal of exercise science最新文献_第7页

The Relationship Between Lower-Body Flexibility and Running Performance in a Half Marathon Downhill Running Event. 半程马拉松下坡跑项目下体柔韧性与跑步表现的关系

International journal of exercise science Pub Date : 2025-01-01 DOI: 10.70252/PYPQ3045

Logan Petty, Marcus M Lawrence

{"title":"The Relationship Between Lower-Body Flexibility and Running Performance in a Half Marathon Downhill Running Event.","authors":"Logan Petty, Marcus M Lawrence","doi":"10.70252/PYPQ3045","DOIUrl":"10.70252/PYPQ3045","url":null,"abstract":"Although previous studies examining treadmill or relatively flat overground running events have found relationships for running performance and flexibility, no study has examined these outcomes during downhill events, including between sexes. Therefore, the purpose of this study was to determine if a relationship exists between lower body flexibility and running performance in recreational adult male and female distance runners competing in a downhill half marathon race. Recreational (n=11 male, n=19 female) adult distance runners completed this study. On the day prior to the race, participants performed a standardized warm-up, followed by determining their sit-and-reach flexibility. The next day, individuals ran their race and their performance scores were recorded using the race organizers website. Pearson correlation coefficients (r) were determined between race time and flexibility. Sex differences were determined using independent t-tests, with significance set at p<0.05. A significant relationship was observed across all participants for race performance and flexibility (r=0.42, p=0.01), but was not when separating out male (r=0.53, p=0.10) and female (r=0.32, p=0.19). Sex differences were observed for performance times (male: 6692.0±920.1 vs female: 7613.3±1073.5 sec., p=0.021, d=0.84), but not flexibility (male: 28.1±8.4 vs female: 32.9±10.8 cm, p=0.19, d=0.47). Flexibility is an important component of running performance, but may have less predictive ability by sex in downhill running performance in recreational runners.","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 3","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798549/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364690","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

The Psychometric Performance of State Mindfulness Scales Around Sitting and Walking on Desert Trails: A Pilot Study. 正念状态量表在沙漠步道上坐与走的心理测量表现：一项初步研究。

International journal of exercise science Pub Date : 2025-01-01 DOI: 10.70252/PCSB3043

Dustin W Davis, Elias M Malek, Rob Salatto, Marcus M Lawrence, Jacob W Manning, Mark DeBeliso, Merrill R Landers, Graham R McGinnis, James W Navalta

{"title":"The Psychometric Performance of State Mindfulness Scales Around Sitting and Walking on Desert Trails: A Pilot Study.","authors":"Dustin W Davis, Elias M Malek, Rob Salatto, Marcus M Lawrence, Jacob W Manning, Mark DeBeliso, Merrill R Landers, Graham R McGinnis, James W Navalta","doi":"10.70252/PCSB3043","DOIUrl":"10.70252/PCSB3043","url":null,"abstract":"State mindfulness is a dynamic construct reflecting current mindfulness, or purposeful attention to the present moment with openness, non-judgment, non-reactivity, and acceptance. Despite its popularity and research in psychology and medicine, measuring state mindfulness remains a challenge. Validity and reliability of the State Mindfulness Scale (SMS) and State Mindfulness Scale for Physical Activity (SMS-PA) in applied settings like nature require more data to be established. This pilot study aimed to evaluate these scales and introduce a new, one-item scale, the Visual Analog Scale-Mindfulness (VAS-M), for quicker mindfulness assessment. Participants completed the SMS, SMS-PA, and VAS-M upon arrival at a desert trail, after 10 minutes of sitting, and after 10 minutes of walking. A subset repeated the intervention 24 hours later. The study found that the SMS and SMS-PA could be given before, during, and after nature immersion. The SMS-PA showed evidence of concurrent validity with the SMS (ρ = .89, p < .001). However, the VAS-M did not meet the criteria for concurrent validity with the other scales. None of the scales met the criteria for test-retest reliability. This study underscores the need to validate state mindfulness scales, especially in non-laboratory settings. While the SMS-PA shows promise, further validation and refinement of the VAS-M are needed. The findings enhance our understanding of measuring state mindfulness, particularly in natural environments. While the scales are already in use, our study helps address gaps in evidence and informs future decisions about their application.","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 4","pages":"27-42"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798556/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364347","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

Comparison of Cardiorespiratory Fitness Testing Measures in Children. 儿童心肺功能测试方法的比较。

International journal of exercise science Pub Date : 2025-01-01 DOI: 10.70252/XTQW5048

Trey R Naylor, Mariana V Jacobs, Michael C Taylor, Jody L Clasey

{"title":"Comparison of Cardiorespiratory Fitness Testing Measures in Children.","authors":"Trey R Naylor, Mariana V Jacobs, Michael C Taylor, Jody L Clasey","doi":"10.70252/XTQW5048","DOIUrl":"10.70252/XTQW5048","url":null,"abstract":"There is currently an exponential increase in the prevalence of childhood obesity thus warranting the demand to appropriately measure and evaluate cardiorespiratory fitness within educational settings. The aims of this study were to (1) compare measured peak oxygen consumption (VO2peak), heart rate peak (HRpeak), and 1-min heart rate recovery (HRRec) responses obtained using a GXTmax and the PACER test; and (2) compare the VO2peak from the GXTmax and PACER test to a PACER prediction equation (ScottEqua).Methods: This study included 32 (16 boys) children. Despite not having maturational assessments on these children, we limited the subject's age range from 10-11 year old's to decrease the possibility of including additional variability in pubertal status. The participants were classified by body mass index for age and sex percentiles (BMI%) as Healthy-Weight (HW BMI% ≤ 85th percentile) or At-Risk (AR BMI% > 85th percentile). Participants completed the GXTmax and PACER tests while wearing a portable metabolic system to measure VO2peak; and these measures were compared to the estimated VO2peak using the ScottEqua. Group mean differences and correlation analysis were used to compare the testing and predictive procedures.Results: We found no significant differences between the GXTmax and PACER VO2peak; however, the Scott Equa VO2peak was significantly greater than these measures. HRpeak was significantly greater during the GXTmax; but no significant HRRec were found.Conclusions: The PACER and GXTmax provide similar VO2peak measures; however, PACER prediction equations should be used with caution in children 10-11 years.","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 8","pages":"65-78"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798550/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364603","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

Comparison of Virtual Vs. Traditional Cycling Exercise on Perceived Duration and Exercise Enjoyment: A Pilot Study. 虚拟与传统自行车运动对感知持续时间和运动享受的比较：一项试点研究。

International journal of exercise science Pub Date : 2025-01-01 DOI: 10.70252/SIOU8054

Kyle W Reason, Lauren G Killen, T Scott Lyons, Jean Ann Helm Allen, J Matt Green

{"title":"Comparison of Virtual Vs. Traditional Cycling Exercise on Perceived Duration and Exercise Enjoyment: A Pilot Study.","authors":"Kyle W Reason, Lauren G Killen, T Scott Lyons, Jean Ann Helm Allen, J Matt Green","doi":"10.70252/SIOU8054","DOIUrl":"10.70252/SIOU8054","url":null,"abstract":"Participating in regular physical activity has been shown to increases one's quality of life. Individuals may choose not to participate in regular physical activity because of a perceived lack of time and enjoyment. With the potential of these barriers to decrease exercise adherence, the purpose of this study was to compare perceived exercise duration and enjoyment between a virtually interactive stationary bike and a clamped workload on a standard non-interactive stationary bike. Thirteen active participants completed a VO2 peak test and four counterbalanced trials (two 20-min, two 40-min) with one trial at each duration on the interactive ExpressoTM bike (EXP) and a workload matched trial on a Velotron (VEL). Metabolic data (VO2), rating of perceived exertion (RPE) and heart rate (HR) was recorded every 5 minutes throughout the trial. Perceived duration and exercise enjoyment (measured by the PACES questionnaire) was assessed 15-minutes after the trial concluded. No significant differences were found for perceived duration (min) between EXP and VEL trials at both short and long duration. For the long duration ExpressoTM (LDE) trial, RPE-overall (RPE-O) was significantly lower at the 25-, 35-, and 40-min mark and RPE-legs (RPE-L) was significantly lower at the 25 min mark compared to the long duration Velotron (LDV) trial. Exercise enjoyment was significantly higher on both EXP trials (vs. VEL). Despite matched intensities, participants perceived the LDE trial more enjoyable and easier (based on RPE) at timepoints beyond 25-min. Virtually interactive cycling could lead to longer exercise durations and/or greater intensities vs. traditional cycling.","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 2","pages":"147-157"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798555/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364675","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

Randomized Pilot Study Examining an Online Diet Intervention to Increase Intake of Fruits and Vegetables Among Healthy Adults. 随机试验研究检查在线饮食干预，以增加健康成年人的水果和蔬菜摄入量。

International journal of exercise science Pub Date : 2024-12-01 eCollection Date: 2024-01-01 DOI: 10.70252/SAET2553

Diana E Kolb, Sarah E Deemer, Evaclaire Synkowski, Stephanie L Silveira

{"title":"Randomized Pilot Study Examining an Online Diet Intervention to Increase Intake of Fruits and Vegetables Among Healthy Adults.","authors":"Diana E Kolb, Sarah E Deemer, Evaclaire Synkowski, Stephanie L Silveira","doi":"10.70252/SAET2553","DOIUrl":"10.70252/SAET2553","url":null,"abstract":"Intake of fruits and vegetables (F&V) is related to health outcomes. The purpose of the study was to test an online diet program promoting F&V intake among healthy adults. Twenty-three participants were randomly assigned to complete an 8-week intervention condition (#800gChallenge®) or wait-list control condition. In weeks 1-4, intervention participants were asked to interact with an application reporting (a) whether they met their daily 800g F&V goal, (b) if their 800g of F&V was from a variety of sources, and (c) reading of daily educational material. Weeks 1-4 included weekly Zoom check-in meetings. Weeks 5-8 were autonomous, wherein participants reported in the application information regarding their 800g F&V goal. At baseline, 4-weeks, and 8-weeks, the participants were prompted to complete three Automated Self-Administered Dietary Assessment tool (ASA24) 24-hour diet recalls for generating Healthy Eating Index (HEI) scores indicating diet quality. A two-way ANOVA was used to examine differences between the intervention and control groups in HEI total score, total vegetable, total fruit, and whole fruit component scores at baseline, 4-weeks, and 8-weeks. While no statistically significant differences in HEI scores were observed between groups, the intervention group showed promising improvements over the 8-week period. Notably, the intervention group increased their mean HEI total score, along with substantial gains in their total vegetable and total fruit consumption, indicating the intervention's potential for promoting healthier dietary patterns. These findings underscore the need for ongoing research to develop eHealth interventions of optimal duration and intensity that can drive meaningful improvements in the health of adults with poor diet quality.","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"17 2","pages":"1618-1628"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11728567/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142978501","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

Effects of Lactate on Corticospinal Excitability: A Scoping Review. 乳酸对皮质脊髓兴奋性的影响：范围综述。

International journal of exercise science Pub Date : 2024-12-01 eCollection Date: 2024-01-01 DOI: 10.70252/QMEY1068

Jess T Gibson, Hudson J Barr, Shaun G Boe

{"title":"Effects of Lactate on Corticospinal Excitability: A Scoping Review.","authors":"Jess T Gibson, Hudson J Barr, Shaun G Boe","doi":"10.70252/QMEY1068","DOIUrl":"10.70252/QMEY1068","url":null,"abstract":"Aerobic exercise has been shown to impact corticospinal excitability (CSE), however the mechanism(s) by which this occurs is unclear. Some evidence suggests an increase in blood lactate concentration resulting from exercise may be what is driving these changes in corticospinal excitability. The extent of literature examining this effect and whether it is consistent across the literature is unknown. As such, the objective of this scoping review was to summarize the existing literature examining the effect of lactate on corticospinal excitability and to determine any trend(s) in the effect. Embase, CINAHL, Medline, SPORTDiscus, and PsycInfo were systematically searched to retrieve original research reporting on blood lactate concentration and measures of corticospinal excitability associated with aerobic or high intensity interval exercise. Two reviewers independently determined study eligibility, and one reviewer extracted data from all eligible studies. The database search yielded 717 papers of which 9 were determined eligible. Multiple studies in which participants completed high intensity and/or exhaustive exercise showed a correlation between large increases in blood lactate concentration and increased corticospinal excitability, however several other studies noted no difference in corticospinal excitability following an increase in blood lactate concentration. This review showed that the existing body of literature is small and highly variable in both methods and results, therefore we can draw limited conclusions about the role of lactate, however based on the evidence available lactate does not appear to be the key player in the modulation of CSE. In addition, evidence from other literature supports moderate intensity aerobic exercise as a modulator of neuroplasticity, suggesting that there may be other key factors contributing to the changes in the brain following exercise.","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"17 2","pages":"1429-1443"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11728589/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142978523","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

Ankle Stability and Single-Leg Balance Control in Collegiate Female Soccer Players versus Non-Soccer Players. 女大学生足球运动员与非足球运动员踝关节稳定性和单腿平衡控制的比较。

International journal of exercise science Pub Date : 2024-12-01 eCollection Date: 2024-01-01 DOI: 10.70252/CQMP3296

Jesus R Aguilar, Courtnie Cano, Matthew Cunningham, You-Jou Hung

{"title":"Ankle Stability and Single-Leg Balance Control in Collegiate Female Soccer Players versus Non-Soccer Players.","authors":"Jesus R Aguilar, Courtnie Cano, Matthew Cunningham, You-Jou Hung","doi":"10.70252/CQMP3296","DOIUrl":"10.70252/CQMP3296","url":null,"abstract":"Ankle sprains are common in female soccer players. Ankle injuries have the potential to impact balance control, which can further contribute to recurrent injuries. This study aimed to examine if female collegiate soccer players exhibited worse ankle stability and single-leg balance than female non-soccer players, and whether there was a correlation between ankle stability and single-leg balance. Eighteen female collegiate soccer players and 22 female non-soccer players participated in the study. The Cumberland Ankle Instability Tool (CAIT) was used to evaluate ankle stability. The Athletic Single Leg Stability Test (ASLST) of the Biodex Balance System was used to examine static single-leg balance, and the Y-Balance Test (YBT) was used to examine dynamic single-leg balance. Results show that 55.56% of soccer players and 9.09% of non-soccer players exhibited chronic ankle instability. The CAIT score of soccer players was significantly lower than non-soccer players (p = .031). There were no significant differences between the two groups in the ASLST and the YBT. Very low correlations were found between the CAIT score and any static or dynamic balance measures (r < .094). Female soccer players who exhibited worsened ankle stability did not exhibit compromised static or dynamic single-leg balance. Future studies should examine if soccer players have established better motor control of single-leg standing through years of training to compensate for worse ankle stability. In addition, the CAIT score alone might not accurately represent static or dynamic balance control in female collegiate soccer players.","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"17 6","pages":"1406-1415"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11728582/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142978603","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

Influence of Fatigue on the Modification of Biomechanical Parameters in Endurance Running: A Systematic Review. 疲劳对耐力跑中生物力学参数改变的影响：系统综述。

International journal of exercise science Pub Date : 2024-12-01 eCollection Date: 2024-01-01 DOI: 10.70252/LLLT3293

Javier Olaya-Cuartero, Berta Lopez-Arbues, Jose Manuel Jimenezolmedo, Lamberto Villalon-Gasch

{"title":"Influence of Fatigue on the Modification of Biomechanical Parameters in Endurance Running: A Systematic Review.","authors":"Javier Olaya-Cuartero, Berta Lopez-Arbues, Jose Manuel Jimenezolmedo, Lamberto Villalon-Gasch","doi":"10.70252/LLLT3293","DOIUrl":"10.70252/LLLT3293","url":null,"abstract":"Fatigue accumulated during the practice of endurance running can be understood as the decrease in sports performance caused by physical exertion. Since fatigue can manifest itself in multiple ways, its influence is difficult to understand, and many authors propose different studies with the aim of obtaining firm conclusions. Thus, the aim of this systematic review was to analyze the effect of fatigue on the modification of biomechanical parameters to mitigate adverse effects and optimize positive adaptations to training. A systematic review was carried out using scientific research papers from specific sport science databases in advanced search dated 02/2023. This systematic review was performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Eligibility criteria were established according to the PICO (Participants, Intervention, Comparison, Outcome) strategy. The PEDro scale was used to evaluate the methodological quality of the publications. Twelve papers were analyzed, with a median PEDro score of 8.0, including 375 participants. The main results show that fatigue affects biomechanical parameters in endurance running, especially untrained athletes. Fatigue affects the biomechanical parameters of running and consequently triggers a decrease in sports performance. There is controversy among authors on the modification of some biomechanical parameters. The proposal of new measurement sensors can be a success to monitor the evolution of fatigue. The dominant mechanism for the perception of fatigue is neuromuscular fatigue. There are differences between trained and untrained runners.","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"17 1","pages":"1377-1391"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11728577/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142978587","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

Differences in Physiological Responses Between Two Repeated Sprint Protocols in Female Soccer Players. 两种重复冲刺方案对女子足球运动员生理反应的差异。

International journal of exercise science Pub Date : 2024-12-01 eCollection Date: 2024-01-01 DOI: 10.70252/AIPW3683

Emma Hörnlund, Spyridon Hadjispyrou, Apostolos Theos

{"title":"Differences in Physiological Responses Between Two Repeated Sprint Protocols in Female Soccer Players.","authors":"Emma Hörnlund, Spyridon Hadjispyrou, Apostolos Theos","doi":"10.70252/AIPW3683","DOIUrl":"10.70252/AIPW3683","url":null,"abstract":"Soccer is a team sport characterized by repeated high-intensity sprints followed by brief periods of recovery. Repeated sprints with (RCOD) and without (RSA) change-of-direction has therefore been recognized as an important fitness component. The purpose of the present study was to examine the differences in physiological responses between RSA and RCOD, and the relationship with Yo-Yo intermittent recovery test (YYIR1), as an estimate of aerobic capacity, in female soccer players. Thirteen female soccer players (age: 20.8 ± 2.6 years) participated. All players performed an RSA and RCOD test, as well as a YYIR1 test. Total time, fatigue (dec%), lactate ([La]b), rating of perceived exertion (RPE) and heart rate were recorded for each sprint test along with total distance covered in the YYIR1. RSA induced significant higher dec% (8.0 ± 3.0% vs. 5.0 ± 2.4%, p = 0.008, ES = 0.89), [La]b (13.5 ± 3.1mml/L vs. 9.9 ± 3.0mml/L, p = <0.001, ES = 2,25) and RPE (8 vs. 7, p = 0.003, ES = 1.0) compared to RCOD. The heart rate recovery was significantly faster for RCOD compared to RSA (173 ± 11 bpm vs. 178 ± 8 bpm, p = 0.02, ES = 0.89). No significant correlation could be found between aerobic capacity and RSA and RCOD variables. RSA was a more physiological taxing test compared to RCOD when the protocols were matched for sprint duration. This information can help athletes and coaches that are involved in women's soccer to design and adapt training strategies in the future.","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"17 6","pages":"1605-1617"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11728590/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142978604","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

Effect of Sex and Age on Knee Strength in Young Athletes: A Systematic Review and Meta-analysis. 性别和年龄对年轻运动员膝关节力量的影响：系统回顾与元分析》。

International journal of exercise science Pub Date : 2024-12-01 eCollection Date: 2024-01-01 DOI: 10.70252/FZQN6769

Hui Gao, Xiaoquan Luo

{"title":"Effect of Sex and Age on Knee Strength in Young Athletes: A Systematic Review and Meta-analysis.","authors":"Hui Gao, Xiaoquan Luo","doi":"10.70252/FZQN6769","DOIUrl":"10.70252/FZQN6769","url":null,"abstract":"The purpose was to summarize the studies examining knee strength in young athletes and provide valuable insights into the magnitude of changes in knee flexion and extension strength during the transition from pre-puberty to puberty among male and female athletes. The literature search was conducted through Cochrane Library, Embase, PubMed, Web of Science. Cohen's effect size (ES) and 95% confidence intervals (CIs) were computed using a random effects model. While comparing males and females, as well as pre-puberty and puberty stages, we conducted subgroup analyses for pre-puberty versus puberty and for males versus females respectively. Thirteen studies published between 2003 and 2021 were included in the analysis. In the pre-puberty stage, no statistical difference was observed on knee extensors or flexors between male athletes and female athletes (p=0.695, 0.138); In the puberty stage, males exhibited higher strength relative to weight compared to females for both knee extensors and flexors (SMD=1.36, 1.25). From pre-puberty to puberty, the strength of knee extensors and flexors relative to weight vastly increased for males (SMD=-1.71, -1.86), while no significant change was found for females (p=0.436, 0.071). There were no discernible sex- or age-related differences in the hamstring-quadricep (HQ) ratio (p=0.590, 0.834). The validity of the HQ ratio as a parameter for predicting injury risks was brought into question by the findings of this study. Strength of male athletes started to grow in puberty while the increase in strength for female athletes was not significant, which indicated that more sex-specific training and injury reduction program should be accomplished.","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"17 6","pages":"1461-1477"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11728586/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142977746","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