International journal of exercise science最新文献

{"title":"The Effects of a Carbohydrate Mouth Rinse on Soccer-Specific Skills Following a Morning High-Intensity Practice.","authors":"Lynnsey R Bowling, Eric M Scudamore, James B Church, Veronika Scudamore","doi":"10.70252/SJXT6980","DOIUrl":"10.70252/SJXT6980","url":null,"abstract":"<p><p>Carbohydrate mouth rinse (CMR) is suggested to improve aerobic, anaerobic, and skill-related performance. The current study examined the influence of CMR on soccer-specific skills in 13 faster collegiate female soccer players. Athletes completed a control (CON) and two counterbalanced, double-blind experimental sessions. Sessions consisted of a warm-up, high-intensity soccer practice, followed by four soccer-specific skill tests. During the experimental sessions participants rinsed with a color-and-taste-matched CMR or placebo (PLA) solution before the skill tests. Thirst sensation (TS), rating of perceived exertion (RPE) and heart rate (HR) were assessed throughout sessions. Performance scores and HR values between sessions were compared with a one-way repeated measurements ANOVA. A Friedman test was used to compare RPE and TS. Post-hoc analyses were implemented when necessary. Agility times were significantly faster (<i>p</i> = .01) during CON session (10.9 ± 0.4 s) compared to PLA session (11.2 ± 0.4 s). There was no significant difference in scores for the other tests (<i>p</i> > .05). Post-practice RPE was lower (<i>p</i> = .01) for CMR session than CON session. TS was lower during PLA and CMR sessions compared to CON session following the warm-up (PLA <i>p</i> = .004; CMR <i>p</i> = .003) and practice (PLA <i>p</i> = .002; CMR <i>p</i> = .001). Average (<i>p</i> = .094) and maximal HR (<i>p</i> = .334) were similar across sessions. While CMR did not hinder soccer skill-related performance, the current study determined the use of CMR may not enhance soccer skill-related performance in fasted collegiate female soccer players.</p>","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 6","pages":"215-224"},"PeriodicalIF":0.0,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11881988/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143567108","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}

{"title":"Effects of a Sprint Post-Activation Performance Enhancement Stimulus on Discus Throw Performance in Collegiate Division I Throwers: A Pilot Study.","authors":"Reagan Hulet, Mark DeBeliso, Marcus M Lawrence","doi":"10.70252/WHLI6641","DOIUrl":"10.70252/WHLI6641","url":null,"abstract":"<p><p>No study has determined the impact a sprinting potentiating stimulus has on discus throwing performance in collegiate throwers. To test the hypothesis, that compared to a dynamic warm-up alone (DyWU), a dynamic warm-up with a multi-set sprinting potentiating stimulus (DyWU+SPR) would enhance discus throw performance. 12 NCAA Division I thrower athletes (18-25 year) randomly completed two sessions separated by at least 48 hours. One session involved a standardized dynamic warm-up (DyWU) and the other session involved a DyWU with multiple sets of a sprinting post-activation performance enhancement (PAPE) stimulus (DyWU+SPR), with both sessions followed by three trials of competition discus throws. A two-way ANOVA (warm-up x timepoint) with repeated measures was used for analyses, p < 0.05. There were no significant (p>0.05) differences between DyWU alone versus DyWU+SPR stimulus for discus throw distances at 8 min. (35.7±5.4 vs 35.0±5.5 meters, respectively; <i>d</i> = -0.12, trivial), 11 min. (34.8±4.5 vs 35.6±5.0 meters, respectively; <i>d</i> = 0.18, trivial), 14 min. (37.5±4.5 vs 36.7±4.9 meters, respectively; <i>d</i> = -0.19, trivial), or best throw attempt (36.2±5.1 vs 36.6±5.0 meters, respectively; <i>d</i> = 0.07, trivial). Within the parameters of this study, there were no differences in discus throw performance with DyWU+SPR compared to a DyWU alone in NCAA Division I throwers. Coaches, athletes, and practitioners should be aware that these results do not support the use of multiple sets of a sprinting PAPE stimulus beyond a dynamic warm-up alone to enhance discus throw performance in collegiate throwers.</p>","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 3","pages":"251-262"},"PeriodicalIF":0.0,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11881986/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143567081","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}

{"title":"Force and Gait Mechanics at Reduced Body Weight on a Lower Body Positive Pressure Treadmill.","authors":"Julia P Phillips, Eesha Gudiseva, Silvio Polly Da Costa Valladao, Thomas Andre","doi":"10.70252/IKKP6306","DOIUrl":"10.70252/IKKP6306","url":null,"abstract":"<p><p>Lower body positive pressure treadmills (LBPPT) have gained increasing attention due to their potential applications in sports training, rehabilitation, and biomechanics research. However, there is limited understanding of how differing body weight percentages influence gait and force production. This study aimed to investigate the relationship between force and gait parameters at different body weight percentages on a LBPPT. Twenty-seven healthy participants completed a series of walking, jogging, and running trials at three different body weight conditions: 100%, 90%, and 75%. Gait parameters, including cadence, stride length, stance time, and ground reaction force, were measured using the Digitsole Pro foot insoles and analyzed across the different conditions. Repeated measures ANOVA and pairwise comparisons were used to examine the effects of body weight percentage on the gait parameters. The results showed significant effects of BW on cadence, stride length, stance time, and impact force during running condition (p < 0.001). Jogging condition was significantly different across all % BW for all variables except ground reaction force (GRF). For walking, the only significant differences presented were for stride length on the right limb between 100% and 90% BW (p = 0.004) and 100% and 75% BW (p = 0.04) and time in stance on the left and right (p < 0.05). Pairwise comparisons revealed significant differences between the 100%, 90%, and 75% BW conditions for most gait parameters during jogging and running. These findings suggest that lower body weight percentages substantially influence gait mechanics and force production, especially as speed increases.</p>","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 7","pages":"239-250"},"PeriodicalIF":0.0,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11881985/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143567109","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}

{"title":"Strength Training can Modulate Urinary Adipokine Levels in Healthy Young Males.","authors":"Marcelo Henrique Salviano de Faria, Lucélia Scarabeli Silva Barroso, Antonio Felipe Souza-Gomes, João Luís Vieira Monteiro de Barros, Adriana Maria Kakehasi, Erica Leandro Marciano Vieira, Ana Cristina Simões E Silva, Albená Nunes-Silva","doi":"10.70252/FXQY9475","DOIUrl":"10.70252/FXQY9475","url":null,"abstract":"<p><p>Adipose tissue stores energy in fat-rich adipocytes, which can produce and release several adipokines and modulate body metabolism. Exercise may induce adipokine production in adipocytes; however, the relationship between the two remains unclear. Few studies have shown the relationship between adipokines and strength training. Thus, we aimed to evaluate the acute and chronic effects of strength training (ST) on urinary adiponectin, leptin, and resistin levels. Twelve untrained young men (23.42 ± 2.67 years) were included in this study. Body composition was evaluated at baseline and after completing of the training protocol using densitometry. Training protocol consisted of three exercises with three sets of 65% of one-repetition maximum (1MR) with a pause of 90 s between sets, each exercise lasting 5 s (2 s concentric / 3 s eccentric). The sessions were carried out three times a week for 10 weeks. Urine was collected during the pre- and post-training in the first and 30th session. Adipokine levels were determined by ELISA. Urinary levels of leptin acutely increased after the first ST session, and after the last ST session. Chronic changes in the leptin levels were also found when comparing the values before the last ST and before the first ST session. Urinary adiponectin levels changed in the comparison of values before and after the last session. There was a significant increase in the adiponectin levels when comparing values after the first and last ST sessions. The levels of resistin chronically increased. Strength training can induce acute and chronic changes in urinary levels of adipokines.</p>","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 2","pages":"107-118"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798553/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364688","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}

{"title":"Longitudinal Analysis of Subsequent Musculoskeletal Injuries and Predictive Value of Index Injuries in Collegiate Women's Field Hockey.","authors":"Blake O'Neil, Paul Mentele, Xavier Smith, Katherine Pohlgeers, Ernest Rimer, Andreas Stamatis","doi":"10.70252/ODDM9341","DOIUrl":"10.70252/ODDM9341","url":null,"abstract":"<p><p>This study investigates the longitudinal patterns of musculoskeletal injuries in an NCAA field hockey team, emphasizing the predictive value of index injuries on subsequent injury rates. Analyzing a dataset from a women's collegiate field hockey team, this research monitored 810 injuries across 124 athletes from 2008 to 2024. The study categorized injuries as local, nonlocal, and recurrent, employing a negative binomial regression to assess the impact of index injuries on the total number of career injuries. Results indicated that ankle sprains, hamstring strains, and back strains significantly predicted the total number of career injuries. Furthermore, the analysis revealed that the majority of subsequent injuries occurred within 69 days of the index injury, suggesting a critical window for targeted interventions. The findings underscore the need for robust longitudinal data and standardized reporting to enhance injury prevention strategies in field hockey.</p>","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 5","pages":"182-192"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798561/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364492","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}

{"title":"A Flexible Training Approach to Improving Concurrent Training Outcomes in Remote Trainees.","authors":"Christopher P Bonilla, Justin R Kilian, Robert L Herron","doi":"10.70252/UXRY5820","DOIUrl":"10.70252/UXRY5820","url":null,"abstract":"<p><p>This study aimed to evaluate the effectiveness of a flexible, trainee-driven training program in improving concurrent training outcomes for individuals training remotely. The study employed a repeated-measures, parallel group design with 18 participants randomized into either a control group with fixed workouts or an experimental group with flexible workout selection based on perceived readiness. Participants were recreationally trained at baseline. Over a 16-week period, both groups completed assessments of strength and endurance, including deadlift, push-ups, and a two-mile run. The results indicated no significant difference in overall fitness improvements between the two groups, with both showing meaningful progress in strength and endurance measures. However, adherence rates were notably lower in the flexible group as the study progressed, potentially due to decision fatigue. Statistical significance was set at ρ ≤ 0.05, with main effects of time showing significant improvement in fitness scores across all groups. The findings suggest that while flexible programming offers similar benefits to traditional fixed programs, it may require strategies to maintain adherence over longer periods. Practical applications include the potential for flexible training to be used effectively in remote settings, particularly for populations like military personnel with varying access to fitness resources.</p>","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 8","pages":"43-55"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798545/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364600","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}

{"title":"Erratum.","authors":"","doi":"10.70252/EZLJ6736","DOIUrl":"https://doi.org/10.70252/EZLJ6736","url":null,"abstract":"<p><p>[This corrects the article on p. 1191 in vol. 16, PMID: 38287936.].</p>","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 2","pages":"225"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11800889/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364677","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}

{"title":"Compressive Pantyhose Mitigates Muscle Fatigue in Ballet-Specific Test: A Pilot Study.","authors":"Gustavo R Mota, Jeffer E Sasaki, Mirelly R Rocha, Pedro Augusto Bianchi Da Fonseca, Bernardo N Ide, Kazushige Goto, Donizete Cicero X De Oliveira, Moacir Marocolo","doi":"10.70252/WDGS4753","DOIUrl":"10.70252/WDGS4753","url":null,"abstract":"<p><p>Compression garments, utilized in sports and exercise for performance enhancement and recovery, lack sufficient well-controlled studies to overcome any potential placebo effect. Therefore, we tested whether wearing compressive pantyhose (CP) during the Ballet-specific aerobic fitness test (BAFT) would influence performance, recovery, physiological, and perceptual indicators. Additionally, this pilot study tested the feasibility of the research procedures and informed adjustments for the main study. Nine young classical ballerinas attended two sessions on different days: a) wearing CP (pressure of 20-30 mmHg) or b) wearing a placebo pantyhose ([PLA] no compression, containing an illusory effect) during the BAFT. We assessed heart rate (HR) and rating of perceived exertion (RPE) during the BAFT, perceived recovery (PRS), lower-limb delayed onset muscle soreness (DOMS) at Pre and 24 h Post, and standing heel-rise test performance at Pre, 30 min, and 24 h Post. No variables differed (p>0.05) between CP and PLA (e.g., HR mean over 5 BAFT phases: 178±14 bpm vs. 179±17 bpm, p=0.63; RPE 30 min post: 9.1±0.8 vs. 9.1±0.8 arbitrary units, p=0.94). However, wearing CP promoted attenuation in acute fatigue, while PLA showed a performance decrement (p<0.05) 30 min Post in the standing heel-rise test: CP 30.2±6.0 to 22.8±7.5 repetitions and PLA 36.2±11.7 to 22.9±6.3 repetitions. We conclude that CP may mitigate acute fatigue in the triceps <i>surae</i> muscle of amateur classical ballet dancers, making it relevant for their acute recovery, particularly in cases involving multiple daily performances. Additionally, this pilot study confirmed the feasibility of the procedures.</p>","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 2","pages":"92-106"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798547/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364676","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}

{"title":"No Differences in Lactate Threshold Across the Menstrual Cycle in Untrained Females.","authors":"Bianca A R Galletti, Grant A Chesbro, Rebecca D Larson","doi":"10.70252/JKXM8836","DOIUrl":"10.70252/JKXM8836","url":null,"abstract":"<p><p>In addition to maximal oxygen consumption (VO2max), the Lactate Threshold (LT) is the other major determinant of aerobic exercise performance. This study examined the effects of the menstrual cycle (MC) phase on the LT in untrained females. Eight females and 8 males completed a LT test on a cycle ergometer. The tests were performed across three MC phases: early follicular (EF; menses), ovulatory (O), and mid-luteal (ML). The male participants (control group) were randomly assigned visits at similar time intervals as a regular 28-day cycle. Blood lactate was obtained during the last minute of each 3-minute stage of the LT test. The LT was determined by visual method (LT_vis), and fixed blood lactate concentrations of 2.0 mmol/L (LT_2.0mmol) and 4.0 mmol/L (LT_4.0mmol). There were no statistically significant differences in power at LT for any of the determination methods across the MC for the female participants (p>0.05) or across the time intervals for the male participants (p>0.05). The male participants tended to have higher power at LT for all three methods LT_vis (41.91W), LT_2.0mmol (44.68W), and LT_4.0mmol (55.94W). These findings support that the MC does not seem to influence power at LT in untrained naturally menstruating females.</p>","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 8","pages":"193-205"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798560/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364692","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}

{"title":"Yoga vs. Static Stretching: Recovery Impact on Male Athletes' Post-HIIT Heart Rate, Respiratory Rate, Blood Pressure, and Heart Rate Variability Analysis.","authors":"Haruthai Petviset, Sasima Pakulanon, Suppalerk Rusmeeroj, Buris Rukdang","doi":"10.70252/SPMN2268","DOIUrl":"10.70252/SPMN2268","url":null,"abstract":"<p><p>Heart rate and heart rate variability indicate an athlete's cardiovascular recovery and autonomic balance after intense exercise. While stretching aids recovery, its effects on autonomic balance are inconsistent. Yoga's combination of postures, breathing, and relaxation may further activate the parasympathetic system, making it a promising tool for sports recovery. This study employed a crossover design to examine the effects of yoga and stretching on post 30-min session of high-intensity interval training (HIIT) recovery in male athletes. Twenty athletes of Mae Fah Luang University (Age 20.95±0.99 years old, VO2max 42.53±4.79 ml/kg/min) were given recovery methods, 15-min stretching and 15-min yoga following HIIT. Heart rate, blood pressure, respiratory rate, and heart rate variability were evaluated immediately after HIIT, 5-min, 10- min, 15-min of the recovery period, and at 24-hour after recovery. A Two-way repeated-measures analysis of variance (ANOVA) was employed to examine the interaction effects between different methods and time of recovery. A significance level of 0.05 indicated a statistically significant difference. The findings indicated a statistically significant interaction between the group and time of heart rate variability and respiratory rate (p<0.05, effect size [ES] medium). Post-hoc analysis indicated that performing yoga showed a significantly lower respiratory rate at 5-min, 10-min, and 15-min compared to stretching (p<0.05, ES large). Yoga demonstrated a noteworthy enhancement in heart rate variability during the 5-min and 10-min recovery periods in comparison to stretching. In summary, this study provides empirical evidence supporting the efficacy of yoga as a post-exercise recovery strategy following high-intensity interval training. The role of breathing, rhythmic muscle contractions, and deep relaxation in yoga appears to facilitate the recovery phase more effectively than stretching alone. This suggests incorporating yoga as an active recovery regimen.</p>","PeriodicalId":14171,"journal":{"name":"International journal of exercise science","volume":"18 6","pages":"79-91"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11798559/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364455","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}