International journal of sports physiology and performance最新文献_第8页

Influence of Travel Demands and Match Load on Recovery Following Postmatch Travel in National-Team Footballers. 旅行需求和比赛负荷对国家队运动员赛后旅行后恢复的影响。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-02-25 Print Date: 2025-05-01 DOI: 10.1123/ijspp.2024-0211

Ewan Clements, Fabian Ehrmann, Andrew Clark, Mark Jones, Alan McCall, Rob Duffield

{"title":"Influence of Travel Demands and Match Load on Recovery Following Postmatch Travel in National-Team Footballers.","authors":"Ewan Clements, Fabian Ehrmann, Andrew Clark, Mark Jones, Alan McCall, Rob Duffield","doi":"10.1123/ijspp.2024-0211","DOIUrl":"10.1123/ijspp.2024-0211","url":null,"abstract":"Purpose: This study investigated the relationship between travel demands and match loads on perceptual recovery, fatigue, and sleep following postmatch travel in national football teams. In addition, the influence of travel demands and the time between match kickoff and travel departure on postmatch recovery was examined.Methods: Match-running load (via GPS) and travel data were obtained from 79 male national-team footballers. Postmatch travel duration, direction, context, time-zone difference, and time between kickoff and travel departure were collated. Athletes provided perceptual ratings of fatigue, soreness, sleep, stress, and recovery from 1 day prematch through to 3 days after postmatch travel. Linear mixed models assessed the influence of match load and travel on perceptual ratings for 3 days posttravel. Additional models assessed a standardized postmatch time point of match day + 3 to determine whether timing and extent of travel influenced recovery.Results: Higher match loads were associated with poorer recovery, fatigue, soreness, and sleep (P = .001-.032). Athletes reported poorer fatigue, soreness, and recovery when traveling from national teams back to clubs compared with between national-team matches (P < .001). Traveling eastward was associated with poorer sleep (P = .004). Longer periods between kickoff and travel departure were associated with poorer sleep on match day + 3 (P = .003).Conclusions: Perceptual recovery, fatigue, sleep, and soreness following postmatch travel were affected by both match load and travel demands. Greater match loads and eastward postmatch travel may impair recovery. In addition, departing later after a match was associated with poorer sleep on match day + 3; however, no relationships existed to any other recovery measures.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"629-637"},"PeriodicalIF":3.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143515644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Combined Versus Single Supplementation of Creatine, Beta-Alanine, and L-Citrulline During Short Sprint Interval Training on Basketball Players' Performance: A Double-Blind Randomized Placebo-Controlled Trial. 短跑间歇训练中联合或单独补充肌酸、β -丙氨酸和l -瓜氨酸对篮球运动员成绩的影响：一项双盲随机安慰剂对照试验。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-02-25 Print Date: 2025-04-01 DOI: 10.1123/ijspp.2024-0310

Menghao Li, Mohsen Sheykhlouvand

{"title":"Effects of Combined Versus Single Supplementation of Creatine, Beta-Alanine, and L-Citrulline During Short Sprint Interval Training on Basketball Players' Performance: A Double-Blind Randomized Placebo-Controlled Trial.","authors":"Menghao Li, Mohsen Sheykhlouvand","doi":"10.1123/ijspp.2024-0310","DOIUrl":"10.1123/ijspp.2024-0310","url":null,"abstract":"Purpose: Athletes often use sport supplements to improve their physical and physiological performance. This randomized, double-blind, placebo (PL) -controlled study aimed to investigate the effects of combined versus single supplementation of creatine (Cr), beta-alanine (BA), and L-citrulline (L-Cit) during short sprint interval training (SSIT) on basketball players' physical and physiological performance over a period of 28 days.Methods: Forty-eight basketball players were equally assigned to 6 groups of Cr (0.1 g/kg of Cr monohydrate daily), BA (4.8 g daily), L-Cit (6 g daily), combined supplementation, PL, and an active control group, and each group consisted of 8 participants. The training groups participated in SSIT (3 sets of 10 repetitions of 5-s all-out runs) sessions 3 times a week for 4 weeks. Physical (vertical jump, 20-m sprint, Illinois change of direction) and physiological (Wingate anaerobic power and cardiorespiratory fitness test) performance were evaluated before and after the training period.Results: All training groups (Cr, BA, L-Cit, combined, and PL) showed significant improvements in physical and physiological performance over the 4-week intervention (P < .05). Interestingly, the supplement groups displayed significantly (P = .001) greater changes than the PL group, indicating better outcomes in performance adaptations. However, significant differences in performance variables were observed among the supplement groups.Conclusion: Our findings indicate that short-term supplementation with Cr, BA, and L-Cit, as well as a combination of them during SSIT, can significantly improve the physical and physiological performance of basketball players compared to a PL.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"559-567"},"PeriodicalIF":3.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143515627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Playing Middle and Side Pick-and-Roll Actions With Aggressive and Containing Defensive Strategies on Workload During Small-Sided Games in Male Basketball Players. 男篮球运动员中、侧挡拆配合攻防策略对小面比赛负荷的影响

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-02-25 Print Date: 2025-04-01 DOI: 10.1123/ijspp.2024-0325

Abdelaziz Qarouach, Kęstutis Matulaitis, Ramunas Butautas, Daniele Conte

{"title":"Impact of Playing Middle and Side Pick-and-Roll Actions With Aggressive and Containing Defensive Strategies on Workload During Small-Sided Games in Male Basketball Players.","authors":"Abdelaziz Qarouach, Kęstutis Matulaitis, Ramunas Butautas, Daniele Conte","doi":"10.1123/ijspp.2024-0325","DOIUrl":"10.1123/ijspp.2024-0325","url":null,"abstract":"Purpose: This study aimed to evaluate the effect of executing different pick-and-roll (PnR) actions and performing different defensive strategies on workloads during basketball small-sided games.Methods: Twelve male basketball players (age: 21 [3] y; stature: 192 [5] cm; body mass: 84 [9] kg) completed 4 randomized small-sided games including PnRs executed on 2 court positions (ie, middle and side PnR) and 2 defensive strategies (ie, aggressive [ie, trap] and containing [ie, drop and ice for middle and side PnR, respectively] strategy). PlayerLoad and number of accelerations, decelerations, and changes of direction are classified as low (<2.5 m·s-2), medium (between 2.5 and 3.5 m·s-2), and high (>3.5 m·s-2), and jumps categorized as low (<40 cm) and high (≥40 cm) were used as external-load measures, while rating of perceived exertion was used as an internal-load measure.Results: Higher PlayerLoad values were found when playing middle PnR compared with side PnR (P = .046; effect size [ES] = 0.6; 95% CI, 0.0-1.2; moderate). Furthermore, trap defense showed moderately higher values of PlayerLoad (P < .001; ES = 1.1; 95% CI, 0.5-1.7), high accelerations (P = .006; ES = 0.8; 95% CI, 0.3-1.4), medium changes of direction (P = .047; ES = 0.6; 95% CI, 0.0-1.2), and high changes of direction (P = .050; ES = 0.6; 95% CI, 0.0-1.2) compared with drop and/or ice defense. No effects of court position and defensive strategy were found in rating of perceived exertion (P > .05).Conclusions: When planning small-sided games with tactical target, basketball coaches are advised to use middle PnR and aggressive defensive strategies to increase player's external load compared with side PnR and containing defensive strategies.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"575-581"},"PeriodicalIF":3.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143515643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Additional Benefits of Repeated-Sprint Training With Prolonged End-Expiratory Breath Holding for Improving Repeated-Sprint Ability in Semiprofessional Soccer Players. 延长呼气末屏气对提高半职业足球运动员重复冲刺能力的额外好处。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-02-24 Print Date: 2025-04-01 DOI: 10.1123/ijspp.2024-0444

František Lörinczi, Miroslav Vavák, Xavier Woorons

{"title":"Additional Benefits of Repeated-Sprint Training With Prolonged End-Expiratory Breath Holding for Improving Repeated-Sprint Ability in Semiprofessional Soccer Players.","authors":"František Lörinczi, Miroslav Vavák, Xavier Woorons","doi":"10.1123/ijspp.2024-0444","DOIUrl":"10.1123/ijspp.2024-0444","url":null,"abstract":"Purpose: To investigate the effects of running repeated-sprint training with voluntary hypoventilation at low lung volume (RSH-VHL) including prolonged end-expiratory breath holding (EEBH) on running repeated-sprint ability (RSA).Methods: Twenty semiprofessional male soccer players completed 12 sessions of repeated 50-m running sprints over a 6-week period either with EEBH (RSH-VHL, n = 10) or with normal breathing (RSN, n = 10). Before (Pre) and after (Post) training, a running RSA test consisting of performing maximum 30-m \"all-out\" sprints until task failure, with a minimum of 10 sprints, was implemented.Results: The maximum number of sprints was increased at Post compared to Pre in RSH-VHL only (13.5 [4.4] vs 7.7 [2.3], P < .01) and was greater in RSH-VHL than in RSN at Post (P < .01). The mean velocity for sprints 1 to 10 and sprints 6 to 10 was increased in both groups at Post (P < .01) but was greater in RSH-VHL than in RSN after the training period (P < .01). There was no change in the reference velocity (P = .80) or in the maximal velocity reached during the RSA test (P = .52) in either group. The mean minimal arterial oxygen saturation recorded during training at the end of the sprints was lower in RSH-VHL (78.5% [1.4%]) than in RSN (97.3% [0.1%]).Conclusions: This study shows that an RSH-VHL intervention including prolonged EEBH can provide an additional benefit for improving RSA in male semiprofessional soccer players. This result may be due in large part to the strong hypoxic effect induced by the prolonged EEBH.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"568-574"},"PeriodicalIF":3.5,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143491953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Analysis of U17, U20, and Senior Football Team Performances in the FIFA World Cup: From Youth to Senior Level. 国际足联世界杯U17、U20和成年队表现对比分析：从青年到成年。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-02-21 Print Date: 2025-04-01 DOI: 10.1123/ijspp.2024-0343

Wonwoo Ju, Ryland Morgans, Jordan Webb, Rick Cost, José M Oliva-Lozano

{"title":"Comparative Analysis of U17, U20, and Senior Football Team Performances in the FIFA World Cup: From Youth to Senior Level.","authors":"Wonwoo Ju, Ryland Morgans, Jordan Webb, Rick Cost, José M Oliva-Lozano","doi":"10.1123/ijspp.2024-0343","DOIUrl":"10.1123/ijspp.2024-0343","url":null,"abstract":"Purpose: This study aimed to investigate differences in match physical and technical/tactical performance of teams across different competitive levels in international soccer: FIFA Men's World Cup Qatar 2022 (MWC), FIFA U20 World Cup Argentina 2023 (U20WC), and FIFA U17 World Cup Indonesia 2023 (U17WC).Methods: From a total of 168 games, 138 games were analyzed (N = 276 game observations) using an optical tracking system.Results: On average, the U17WC teams exhibited reduced total running (3% less), high-intensity running (14%-16% less), and sprinting (18%-26% less) distance than the MWC and U20WC teams (P ≤ .0023; effect size [ES]: 0.8-1.5). The MWC teams displayed 4% to 5% higher accuracy in passing and executing line breaks (P ≤ .0188; ES: 0.6-0.7), along with increased offers to receive the ball (53%-118% more) and movements to receive the ball (44%-101% more), and received the ball (61%-137%) more often than the U20WC and U17WC teams (P < .001; ES: 1.1-2.1). Moreover, notable decreases in defensive pressure (-18% to -32%) and forced turnovers (-26% to -32%) were observed in the U17WC than other competitions (P ≤ .0001; ES: 0.8-2.2). Greater variability was observed among the U17WC teams in several metrics, including high-intensity/sprinting distances, attempts at goal, and receptions in the final third.Conclusions: These findings demonstrate that as the competitive level increases, so do the physical demands, advanced technical skills, and tactical fluidity/adaptability. However, caution should be exercised when interpreting match performance of younger age groups, as higher variability was evident in both physical and technical/tactical performance in matches.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"549-558"},"PeriodicalIF":3.5,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143472464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Menstrual Phase and Postmatch Perceptual Recovery Responses for Naturally Menstruating Football Players. 自然月经期足球运动员的经期和赛后知觉恢复反应。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-02-21 Print Date: 2025-04-01 DOI: 10.1123/ijspp.2024-0295

Georgia A Brown, Hugh H K Fullagar, Rob Duffield

{"title":"Menstrual Phase and Postmatch Perceptual Recovery Responses for Naturally Menstruating Football Players.","authors":"Georgia A Brown, Hugh H K Fullagar, Rob Duffield","doi":"10.1123/ijspp.2024-0295","DOIUrl":"10.1123/ijspp.2024-0295","url":null,"abstract":"Purpose: To explore the influence of menstrual phase on postmatch perceptual responses and the time course of recovery for professional footballers.Methods: Thirteen naturally menstruating footballers tracked their menstrual cycle and reported perceptual responses for up to 4 cycles. Menstrual phases were determined by calendar-based tracking and urinary hormone tests and classified as menstruation, follicular, or luteal. On match days (MDs) and the following 2 days (MD+1 and MD+2), players completed perceptual questionnaires on fatigue, soreness, stress, sleep, and perceived recovery status (PRS). Total high-speed running distance during matches was recorded using GPS devices to represent load. Data were analyzed using linear mixed models.Results: Day × total high-speed running distance affected PRS (P < .001), total wellness (P < .001), fatigue (P = .047), soreness (P < .001), and stress (P = .044). Significant main effects were found for menstrual phase on PRS (P = .038), Day on stress (P = .034), and total high-speed running distance on soreness (P = .045). During the menstruation phase, moderate effect sizes (ES) existed for worse PRS on MD and MD+2 (P = .07-.28, ES > 0.51) and better sleep quality on MD+2 (P = .13, ES = 0.56). No significant differences between menstrual phases existed (P > .05), and all other ESs were trivial to small (ES < 0.50). All perceptual measures, except stress, differed significantly between days (P < .05), with differences based on match load and, to a lesser extent, menstrual phase.Conclusion: PRS may be worse during menstruation, although menstrual phase has limited association with postmatch perceptual responses. Variability in the recovery time course for perceptual measures exists between menstrual phases, but evidence for consistently impaired recovery time course in any phase was not evident.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"540-548"},"PeriodicalIF":3.5,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143472471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

What It Takes to Win: Examining Predicted Versus Actual Swimming Performances at the Paris 2024 Olympic Games, and What Comes Next. 获胜的条件：2024年巴黎奥运会游泳选手的预测与实际表现对比，以及接下来会发生什么。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-02-13 Print Date: 2025-04-01 DOI: 10.1123/ijspp.2024-0409

Cormac Powell, David B Pyne, Emmet Crowley, Iñigo Mujika

{"title":"What It Takes to Win: Examining Predicted Versus Actual Swimming Performances at the Paris 2024 Olympic Games, and What Comes Next.","authors":"Cormac Powell, David B Pyne, Emmet Crowley, Iñigo Mujika","doi":"10.1123/ijspp.2024-0409","DOIUrl":"10.1123/ijspp.2024-0409","url":null,"abstract":"Predictions of performances should be evaluated to confirm their accuracy. Work by this group has resulted in 3 sets of predictions being generated for swimming events at the Paris 2024 Olympic Games, using the same statistical approach for each set.Purpose: To examine the accuracy of swimming predictions for the Paris 2024 Olympic Games and generate updated predictions for both the Singapore 2025 World Aquatics Championships and Los Angeles 2028 Olympic Games.Methods: A linear regression and forecasting function was used to generate predictions for the Paris 2024 Olympic Games across 3 performance categories (rank 1st-3rd, 4th-8th, and 9th-16th). Mean absolute error was used to assess the accuracy of the predicted versus actual Paris 2024 Olympic Games times for all events across the 3 performance categories. New predictions for the 2028 Olympic cycle were subsequently generated using results from the World Championships and Olympic Games between 2011 and 2024.Results: Across all events, a mean absolute error value of 0.84% was observed between the Paris 2024 Olympic Games predicted and actual times. Predicted times were highly correlated with actual times (r2 = .99). Across the 3 sets of predictions (created in 2022, 2023, and 2024), the 2023 set of predictions had the lowest overall mean absolute error value (0.55%).Conclusions: The methods used to create predictions for swimming performances at the Paris 2024 Olympic Games were deemed accurate. These methods enable national swimming federations to create a series of predictions for a given major championship, inform athlete identification and development pathways, and allocate appropriate resources, including sport-science provision.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"504-514"},"PeriodicalIF":3.5,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143413711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Immediate Effects of Overnight Long-Haul Travel on Physical and Cognitive Performance and Sleep in Professional Male Rugby Union Players (a 2-Part Study). 夜间长途旅行对职业橄榄球联盟男子运动员身体和认知表现以及睡眠的直接影响（一项两部分研究）。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-02-13 Print Date: 2025-04-01 DOI: 10.1123/ijspp.2024-0328

Kanon Uchiyama, Peter Peeling, Shona L Halson, Machar Reid, Karen Wallman, Jennifer Walsh, Suzanna Russell, Simon Thomas, Olivier Girard

{"title":"Immediate Effects of Overnight Long-Haul Travel on Physical and Cognitive Performance and Sleep in Professional Male Rugby Union Players (a 2-Part Study).","authors":"Kanon Uchiyama, Peter Peeling, Shona L Halson, Machar Reid, Karen Wallman, Jennifer Walsh, Suzanna Russell, Simon Thomas, Olivier Girard","doi":"10.1123/ijspp.2024-0328","DOIUrl":"10.1123/ijspp.2024-0328","url":null,"abstract":"Background: Travel can disrupt sleep and reduce perceived recovery in athletes. While the impact of travel on physical performance has been studied, its effect on cognitive performance remains unexplored.Purpose: This study investigated the consequences of overnight long-haul travel on physical (part I) and cognitive performance (part II) in professional rugby players traveling overseas for competition.Methods: In part I (n = 24), vertical-jump performance was assessed across 5 mornings surrounding travel (HOME, TRAVEL, and AWAY 1, 2, and 3). In part II (n = 24), mental fatigue and psychomotor vigilance (defined as the ability to respond to stimuli effectively) were assessed across 3 days (HOME, TRAVEL, and AWAY 1). Sleep was monitored on all nights preceding performance assessment using activity monitoring.Results: Compared with HOME, TRAVEL reduced sleep quantity (part I. -219 [112] min; part II, -334 [233] min; both P < .001) and elevated in-flight mental fatigue (part II, +12 [18]; P < .05). Psychomotor vigilance was impaired during TRAVEL (+8% [6%] in valid response latencies ≤500 milliseconds; P < .001), and reactive jump strength was reduced at AWAY 1 (-7% [10%] in drop jump; P < .001). While psychomotor vigilance was restored by AWAY 1 (after hotel sleep), reactive jump strength remained diminished until AWAY 3 (-12% [9%] in drop jump compared with HOME; P < .001) after travel.Conclusion: For teams traveling on long-haul journeys overnight for competition, it is recommended to arrive more than 3 days before matches to enable sufficient physical and cognitive recovery at the new destination to optimize performance away from home.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"530-539"},"PeriodicalIF":3.5,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143413225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Association Between Reactive Strength Index and Metabolic Cost of Running in Male Master Athletes. 男性运动健将反应性力量指数与跑步代谢消耗的关系

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-02-12 Print Date: 2025-04-01 DOI: 10.1123/ijspp.2024-0291

Maxence Tanneau, Nicolas Berryman, Iñigo Mujika, Anh P Nguyen, Darío Cappa, Jeanne Barraud, Laurent Bosquet

{"title":"Association Between Reactive Strength Index and Metabolic Cost of Running in Male Master Athletes.","authors":"Maxence Tanneau, Nicolas Berryman, Iñigo Mujika, Anh P Nguyen, Darío Cappa, Jeanne Barraud, Laurent Bosquet","doi":"10.1123/ijspp.2024-0291","DOIUrl":"10.1123/ijspp.2024-0291","url":null,"abstract":"Purpose: To examine the association between reactive strength index (RSI) and metabolic cost of running (MCr) in master athletes. We hypothesized that individuals with a higher RSI would exhibit a lower MCr, that both variables would be associated, and that age would moderate this relationship.Methods: Forty-five male master athletes participated to this study. A median split was performed to constitute 2 age groups (group 1, 47.7 [1.7] y old; group 2, 56.3 [4.6] y old). Participants underwent a single 45-minute session during which RSI was assessed with drop jumps, and MCr, during a continuous exercise of submaximal intensity performed on a treadmill.Results: A small negative association was found between net MCr and RSI in the overall sample (RSI mean r = -.38, P < .05; RSI max r = -.38, P < .05). Group 1 exhibited a lower net MCr (P < .01, d = -0.84) and higher RSI (P < .01, d > 0.82) than group 2. However, the association between the 2 measures was verified specifically in group 2 (RSI from a 20-cm drop jump, r = -.53, P < .01; RSI mean, r = -.50, P < .05; RSI maximum, r = -.57, P < .01).Conclusions: RSI is associated with net MCR in master athletes, particularly in older participants. Additional intervention studies are now required to further explore this association.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"524-529"},"PeriodicalIF":3.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143412841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of Optimal Drop Heights in 2 Drop-Jump Exercises for Basketball Athletes With Differing Strength Levels. 不同力量水平篮球运动员两种起落练习最佳落点高度的比较。

IF 3.5 2区医学

International journal of sports physiology and performance Pub Date : 2025-02-07 Print Date: 2025-04-01 DOI: 10.1123/ijspp.2024-0353

Leijiao Yue, Zhitao Liu, Shanwei Wang, Tianqi Lin, Cheng Liang, Jun Yin, Chenglin Liu

{"title":"Comparison of Optimal Drop Heights in 2 Drop-Jump Exercises for Basketball Athletes With Differing Strength Levels.","authors":"Leijiao Yue, Zhitao Liu, Shanwei Wang, Tianqi Lin, Cheng Liang, Jun Yin, Chenglin Liu","doi":"10.1123/ijspp.2024-0353","DOIUrl":"10.1123/ijspp.2024-0353","url":null,"abstract":"Purpose: Previous research has primarily focused on bounce drop jump (BDJ) rather than countermovement drop jump (CDJ) in studying optimal drop heights for drop jump. This study explored the biomechanic parameters of both BDJ and CDJ and their relationship with performance across varying drop heights based on the percentage of squat-jump height (SJH).Methods: Twenty-four college basketball athletes were recruited and divided into low- and high-strength groups. Participants performed BDJ and CDJ at 50%, 75%, 100%, 125%, 150%, and 175% of SJH. The point or zone with the largest reactive strength index (RSI) corresponds to the optimal drop height for a drop jump.Results: Optimal drop heights were determined to be 84.7% of SJH for BDJ low strength and 84.1% of SJH for BDJ high strength, with no significant difference between groups (P = .213). For CDJ, relative optimal drop heights were 104.6% of SJH for CDJ low strength and 106.1% of SJH for CDJ high strength, also with no significant difference (P = .717). Mechanical power with RSI exhibited a coefficient close to 1 (r = .98-.99), while average propulsive force demonstrated a very strong positive correlation with RSI (r = .72-.77).Conclusions: It is recommended that basketball athletes incorporate particular percentages of SJH into drop jump, with 75% to 100% of SJH for BDJ and 100% to 125% of SJH for CDJ, as these heights are associated with achieving an optimal RSI and mechanical power. Tailoring the inclusion of BDJ or CDJ in training should account for the specific demands of on-court positions and task objectives for basketball players.","PeriodicalId":14295,"journal":{"name":"International journal of sports physiology and performance","volume":" ","pages":"488-496"},"PeriodicalIF":3.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143370578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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