Journal of Human Kinetics最新文献_第4页

What Variables Differentiate between Selected and Not Selected High-Performance Adolescent Track and Field Athletes? 优秀青少年田径运动员与非优秀青少年田径运动员有哪些变量差异？

IF 1.9 3区医学

Journal of Human Kinetics Pub Date : 2024-12-19 eCollection Date: 2025-04-01 DOI: 10.5114/jhk/193995

Antonio E Vélez-Alcázar, Juan Alfonso García-Roca, Raquel Vaquero-Cristóbal

{"title":"What Variables Differentiate between Selected and Not Selected High-Performance Adolescent Track and Field Athletes?","authors":"Antonio E Vélez-Alcázar, Juan Alfonso García-Roca, Raquel Vaquero-Cristóbal","doi":"10.5114/jhk/193995","DOIUrl":"10.5114/jhk/193995","url":null,"abstract":"Early detection of young talent and athlete development programs lack reliable and valid indicators that can predict future success. Therefore, the aim of the present study was to analyse the differences between selected and unselected athletes to define the determinant factors, as well as the influence of gender on the variables that could predict athletic success. The research was carried out using a cross-correlational descriptive design involving 95 athletes, of whom 46 were males (average age = 18.31 ± 2.31 years) and 49 were females (averaged age = 17.27 ± 1.44 years), and whose sociodemographic, psychological, physical and anthropometric variables were analysed. Significant differences were observed in maturity (p < 0.001), anthropometric variables related to bone structure, muscle mass, and body mass (p < 0.001 to 0.044), physical condition variations related to strength, power, sprint ability, flexibility, and balance (p < 0.001 to 0.013), as well as athletic experience and training variants (p = 0.003-0.004). These results should be taken into account for the sporting programming of young athletes and in order to be aware of the modulating effect of biological maturity and its influence on athletic performance.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"263-280"},"PeriodicalIF":1.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127913/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","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 Elastic Bands, Kaatsu Cuffs, and Clinical Cuffs on the Brachial Blood Flow during Elbow Flexion Exercise. 松紧带、太极拳袖带和临床袖带对屈肘运动中肱血流量的影响。

IF 1.9 3区医学

Journal of Human Kinetics Pub Date : 2024-12-19 eCollection Date: 2025-04-01 DOI: 10.5114/jhk/193490

Rodrigo Volga Fernandes, Roque Santos de Oliveira, Luciana Diniz Nagem Janot de Matos, Alexandra Passos Gaspar, Gilberto Laurentino

{"title":"Effects of Elastic Bands, Kaatsu Cuffs, and Clinical Cuffs on the Brachial Blood Flow during Elbow Flexion Exercise.","authors":"Rodrigo Volga Fernandes, Roque Santos de Oliveira, Luciana Diniz Nagem Janot de Matos, Alexandra Passos Gaspar, Gilberto Laurentino","doi":"10.5114/jhk/193490","DOIUrl":"10.5114/jhk/193490","url":null,"abstract":"The elastic band (EB) may be an alternative for restricting the blood flow compared to the Kaatsu and clinical cuffs (KA and CC, respectively). However, the impact of the EB, the KA, and the CC on the blood flow during exercise remains uncertain. This study examined the blood flow (BF), the diameter of the brachial artery (DA), and blood flow velocity (BFV) during elbow flexion exercises using the KA, the CC, and the EB. Twenty-six resistance-trained men (age: 30.7 ± 8.7 years, body mass: 80.7 ± 15.5 kg, body height: 175.7 ± 6.5 cm) completed four sets of 15 repetitions of unilateral elbow flexion exercise at 20% 1RM. All protocols were set to the same perceived tightness (PT) based on Kaatsu optimal pressure (KOP). The BF, BFV and the DA were assessed at baseline, at KOP, and during the exercise sets. The BF and BFV were significantly reduced from baseline to KOP when the KA (67%, ES: 1.4, p = 0.0002; 24%, ES: 1.9, p < 0.0001) and the CC (70%, ES: 1.7, p < 0.0001; 31%, ES: 1.6, p < 0.0001) were applied, yet not the EB (49%, ES: 1.1, p = 0.103; 17%, ES: 0.7, p = 0.123). The BF and BFV increased from KOP to the fourth exercise set in all protocols with the KA (409%, ES: 2.4, p < 0.0001; 37.5 %, ES: 1.7, p = 0.007), the CC (377%, ES: 2.0, p < 0.0001; 55%, ES: 1.3, p < 0.0001) and the EB (411%, ES: 2.9, p < 0.0001; 43%, ES: 1.3, p = 0.002), respectively, with no significant difference between them (p > 0.05). The DA remained unchanged after all protocols (p > 0.05). In conclusion, the EB showed similar blood flow behavior compared to pressure-controlled cuffs.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"101-114"},"PeriodicalIF":1.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127937/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acute Impact of Different Reperfusion Duration Following Blood Flow Restriction on Bar Velocity during the Bench Press Exercise. 卧推运动中血流限制后不同再灌注时间对杆速的急性影响。

IF 1.9 3区医学

Journal of Human Kinetics Pub Date : 2024-12-19 eCollection Date: 2025-04-01 DOI: 10.5114/jhk/194471

Dawid Gawel, Robert Trybulski, Marta Bichowska-Paweska, Jakub Jarosz, Maciej Kostrzewa, Michal Wilk

{"title":"Acute Impact of Different Reperfusion Duration Following Blood Flow Restriction on Bar Velocity during the Bench Press Exercise.","authors":"Dawid Gawel, Robert Trybulski, Marta Bichowska-Paweska, Jakub Jarosz, Maciej Kostrzewa, Michal Wilk","doi":"10.5114/jhk/194471","DOIUrl":"10.5114/jhk/194471","url":null,"abstract":"The main goal of this study was to evaluate the effects of different reperfusion duration following intra-conditioning blood flow restriction (BFR) on bar velocity during the bench press exercise and muscle viscoelastic properties of the triceps brachii. Eleven resistance trained males (age: 24.3 ± 4.9 years; body mass: 85.5 ± 13.2 kg; bench press 1RM: 123.6 ± 25.4 kg; training experience: 6.8 ± 5.1 years) volunteered for the study. During the experimental sessions participants performed 5 sets of 3 repetitions of the bench press exercise with a load of 60% 1RM under four different conditions: two BFR (80% AOP) and two control conditions. For the BFR conditions, cuffs were applied before each set for 4.5 min and released 30 or 60 s before the start of the set as reperfusion. Under the control conditions, BFR was not applied and the total duration of rest intervals amounted to 5 min and 5.5 min. Measurements of viscoelastic properties were conducted at baseline and immediately after completion of each set of the bench press exercise. The two-way ANOVA showed no significant condition × set interaction for mean and peak bar velocity (p = 0.93; p = 0.787; accordingly), and no main effect of condition for mean and peak bar velocity (p = 0.57; p = 0.417; accordingly). The Friedman's test showed no differences in oscillation frequency (p = 0.156), stiffness (p = 0.368), and the logarithmic decrement of tissue oscillation (p = 0.644). The results of this study indicate that BFR during rest intervals does not acutely influence mean and peak bar velocity, as well as mechanical properties of the triceps brachii regardless of the duration of reperfusion.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"141-155"},"PeriodicalIF":1.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127942/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","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 Different Post Warm-Up Strategies for Non-Starter Players in Futsal. 不同后热身策略对五人制足球非首发球员的影响。

IF 1.9 3区医学

Journal of Human Kinetics Pub Date : 2024-12-19 eCollection Date: 2025-04-01 DOI: 10.5114/jhk/192789

Nuno Silva, Bruno Travassos, Bruno Gonçalves, Fábio Yuzo Nakamura, Eduardo Abade

{"title":"Effects of Different Post Warm-Up Strategies for Non-Starter Players in Futsal.","authors":"Nuno Silva, Bruno Travassos, Bruno Gonçalves, Fábio Yuzo Nakamura, Eduardo Abade","doi":"10.5114/jhk/192789","DOIUrl":"10.5114/jhk/192789","url":null,"abstract":"Futsal warm-ups are crucial pre-match routines designed to enhance players' readiness. However, non-starter players inevitably face longer periods of inactivity. This study aimed to investigate the effects of various post warm-up strategies on physical performance of non-starter players in futsal. Thirteen highly trained male futsal players participated in this study during the in-season period. All players performed three distinct post warm-up strategies over consecutive days: REST, dynamic stretching (DYS), and a combination of plyometrics with change of direction drills (PLY-COD). After performing a standard warm-up, players remained inactive for 10 min, mirroring the traditional time window leading up to the start of the match. Subsequently, post warm-up strategies were implemented. Testing included a countermovement-jump, a reactive strength index, 5- and 10-m sprints, and a 505 COD test. Players were tested 10 min after the conclusion of the warm-up and immediately after the post warm-up strategy. The PLY-COD strategy yielded positive effects across all variables. Running performance improved with small to moderate effect in both sprint (-2.2 ± 1.9%), (-1.6 ± 1.7%), and COD (-2.9 ± 3.5%) tests. Conversely, both DYS and REST strategies had a detrimental impact on running and jumping performances, with this impairment being more pronounced in running following REST strategy, particularly in the 10-m linear sprint (1.4 ± 1.7%). These results suggest that remaining inactive or exerting limited effort after a warm-up may be detrimental to physical performance of futsal non-starter players. On the other hand, PLY-COD drills could be effective strategies to maintain or even enhance physical performance following the warm-up.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"169-181"},"PeriodicalIF":1.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127939/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","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 Whole-Body Vibration on Exercise Performance among Athletes: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. 全身振动对运动员运动表现的影响：随机对照试验的系统回顾和荟萃分析。

IF 1.9 3区医学

Journal of Human Kinetics Pub Date : 2024-12-19 eCollection Date: 2025-04-01 DOI: 10.5114/jhk/193514

Yu-Ching Peng, Yi-Ting Guo, Jeng-Cheng Wu, Wen-Hsuan Hou

{"title":"Effects of Whole-Body Vibration on Exercise Performance among Athletes: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.","authors":"Yu-Ching Peng, Yi-Ting Guo, Jeng-Cheng Wu, Wen-Hsuan Hou","doi":"10.5114/jhk/193514","DOIUrl":"10.5114/jhk/193514","url":null,"abstract":"Whole-body vibration (WBV), an intervention for enhancing athletes' exercise performance (muscle strength and power), is often used either as a supplement or an alternative to conventional training. The current systematic review and meta-analysis assessed the effects of WBV on exercise performance in athletes. PubMed, Embase, and Cochrane Library databases were searched for relevant randomized controlled trials published from database inception to April 2024. We analyzed three key components of exercise performance: muscle power (measured in terms of countermovement jump (CMJ) and squat jump (SJ) height), strength (measured in terms of isometric and concentric torque of the knee extensors and flexors), and aerobic cardiovascular endurance (measured in terms of maximal oxygen uptake (VO2max)). This review included 18 randomized controlled trials. WBV significantly improved concentric torque of the knee extensors and flexors, with effect sizes of 8.86 (95% confidence interval: 6.00 to 11.72; I2 = 0%; p < 0.00001) and 9.56 (95% confidence interval: 7.40 to 11.72; I2 = 0%; p < 0.00001), respectively. However, no significant changes were noted in the indicators of muscle power or cardiovascular endurance. Overall, our findings suggest that WBV interventions can enhance lower-limb strength in athletes. However, the quality of the evidence was low. To provide effective evidence-based guidance for WBV, future studies should consider participants' characteristics as well as intervention frequency, intensity, and duration in their analysis.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"27-50"},"PeriodicalIF":1.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127932/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

External and Internal Loads of Transition Games Are Affected by the Presence of an Opposing Team and Their Initial Positions. 过渡游戏的外部和内部负荷受到对手的存在及其初始位置的影响。

IF 1.9 3区医学

Journal of Human Kinetics Pub Date : 2024-12-19 eCollection Date: 2025-04-01 DOI: 10.5114/jhk/191850

Jose A Asian-Clemente, Iván Asín-Izquierdo, Bernardo Requena, Carlos Galiano

{"title":"External and Internal Loads of Transition Games Are Affected by the Presence of an Opposing Team and Their Initial Positions.","authors":"Jose A Asian-Clemente, Iván Asín-Izquierdo, Bernardo Requena, Carlos Galiano","doi":"10.5114/jhk/191850","DOIUrl":"10.5114/jhk/191850","url":null,"abstract":"The objectives of this study were to compare the external and internal loads of transition games (TGs) without the opposition and TGs with different types of the opposition, and to assess their impact on a series of speed and strength tests. The external and internal loads of 18 young professional players (age: 14.79 ± 0.18 years; body height: 171.9 ± 6.5 cm; body mass: 62.1 ± 7.5 kg) were monitored in three TGs: 1 vs. 0 (no opposition; striker vs. goalkeeper), 1 vs. 1Front (defender between the goal and the striker), and 1 vs. 1Behind (defender behind the striker). Peak velocity (PeakV), distance covered (DC) above 24.0 km•h-1, 21.0-23.9 km•h-1, 18.0-20.9 km•h-1, 13.0-17.9 km•h-1, accelerations and decelerations above 2.5 m•s-2 and below -2.5 m•s-2 as well as the rate of perceived exertion (RPE) were obtained. Before and after each TG, vertical jump performance and sprint ability were assessed. PeakV and DC ≥24 km•h-1 differed among drills, showing superior outcomes in the 1 vs. 1Behind format. DC 21-23.9 km•h-1 showed significant differences among drills, with larger distances covered in the 1 vs. 0 format. The number of accelerations-decelerations was significantly different among drills. RPE response differed among drills, with larger values for 1 vs. 1Behind and 1 vs. 1Front formats. All post tests showed an effect on time response without significant group interaction. The 1 vs. 1Behind and 1 vs. 0 formats induce higher values for high speed, sprint and accelerations than the 1 vs. 1Front format, which shows better performance in decelerations.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"115-126"},"PeriodicalIF":1.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127936/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Weekly Session of Jumping Interval Training Effectively Enhances Aerobic, Anaerobic, and Jumping Performance in Aerobic Gymnastics. 每周一次的间歇跳跃训练有效地提高有氧体操的有氧、无氧和跳跃表现。

IF 1.9 3区医学

Journal of Human Kinetics Pub Date : 2024-12-19 eCollection Date: 2025-04-01 DOI: 10.5114/jhk/193536

Dong Ma, Ke Wang, Rui Miguel Silva, Qi Xu, Zijian Zhao

{"title":"A Weekly Session of Jumping Interval Training Effectively Enhances Aerobic, Anaerobic, and Jumping Performance in Aerobic Gymnastics.","authors":"Dong Ma, Ke Wang, Rui Miguel Silva, Qi Xu, Zijian Zhao","doi":"10.5114/jhk/193536","DOIUrl":"10.5114/jhk/193536","url":null,"abstract":"This study aimed to compare the impact of varying weekly frequencies of jumping interval training (JIT) on aerobic and anaerobic fitness, as well as jumping abilities of youth female athletes specialized in aerobic gymnastics. A randomized controlled study design was conducted spanning 8-week duration, involving 69 youth female athletes (16.3 ± 1.2 years) specialized in aerobic gymnastics. Participants were allocated into two experimental groups: JITw1 (comprising individuals subjected to JIT once a week), and JITw2 (encompassing individuals undergoing JIT twice a week), alongside a control group. Prior to and post the intervention period, athletes underwent evaluations of their performance through the countermovement jump test (CMJ), a specialized anaerobic assessment personalized for aerobic gymnasts (SAGAT), and a 20-m multistage fitness test. A mixed ANOVA was conducted for statistical analysis. Significant time (baseline and post-intervention) x group (JITw1, JITw2 and control) interactions were found in the SAGAT (p < 0.001), the CMJ (p < 0.001) and the 20-m multistage fitness test (p < 0.001). Post-intervention analysis revealed significantly lower scores in the SAGAT for the control group compared to the JITw2 group (p = 0.003). Significantly higher scores were observed for the JITw2 group in the CMJ test compared to the control group (p = 0.001). Significantly lower scores in the 20-m multistage fitness test were found in the control group compared to the JITw2 and JITw1 groups (both p < 0.001). As conclusion, while additional JIT training once a week may suit for minimal effective training and positive adaptations, training twice a week is advisable when significant improvements are desired.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"197-211"},"PeriodicalIF":1.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127922/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Road to Paris-2024: The Path of Brazilian Volleyball Athletes Goes Through the Youth National Teams. 通往巴黎-2024之路：巴西排球运动员走过的青年国家队之路。

IF 1.9 3区医学

Journal of Human Kinetics Pub Date : 2024-12-19 eCollection Date: 2025-04-01 DOI: 10.5114/jhk/191099

Elisa Dell'Antonio, Jean Marlon Machado, Felipe G Mendes, Gabriel Henrique Treter Gonçalves

{"title":"Road to Paris-2024: The Path of Brazilian Volleyball Athletes Goes Through the Youth National Teams.","authors":"Elisa Dell'Antonio, Jean Marlon Machado, Felipe G Mendes, Gabriel Henrique Treter Gonçalves","doi":"10.5114/jhk/191099","DOIUrl":"10.5114/jhk/191099","url":null,"abstract":"This study analyzed the transition of Brazilian volleyball athletes from youth national teams to adult national teams, and examined the relative age effect in the selection of athletes for youth categories and their transition to the adult category. In youth categories, 326 athletes participating in the U18 and U20 women's and U19 and U21 men's world championships between 2001 and 2021 were prospectively analyzed. In the adult category, a retrospective analysis was conducted on 55 athletes who participated in the Olympic Games or World Championships between 2004 and 2022. Our results showed that approximately 20% of athletes participating in youth categories advanced to the adult national team. However, around 80% of adult teams comprised athletes who were part of youth categories. An athlete who progressed through both youth categories was 35 times more likely to be selected to the adult national teams compared to an athlete who only participated in the U18/U19 youth team. In youth national teams, there was a higher call-up rate for athletes born earlier. Despite this, athletes born later were more likely to advance to the adult national team.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"225-235"},"PeriodicalIF":1.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127925/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

VO₂FITTING Software: New Insights and Practical Applications (VO₂FITTING Software Update). VO2FITTING软件：新见解与实际应用（VO2FITTING软件更新）。

IF 1.9 3区医学

Journal of Human Kinetics Pub Date : 2024-12-19 eCollection Date: 2025-04-01 DOI: 10.5114/jhk/194124

Ana Sofia Monteiro, Rui M S Azevedo, Rodrigo Zacca, Anna Ogonowska-Slodownik, Cosme F Buzzachera, João Paulo Vilas-Boas, Ricardo J Fernandes

{"title":"VO2FITTING Software: New Insights and Practical Applications (VO2FITTING Software Update).","authors":"Ana Sofia Monteiro, Rui M S Azevedo, Rodrigo Zacca, Anna Ogonowska-Slodownik, Cosme F Buzzachera, João Paulo Vilas-Boas, Ricardo J Fernandes","doi":"10.5114/jhk/194124","DOIUrl":"10.5114/jhk/194124","url":null,"abstract":"This study aimed to present an updated version of VO2FITTING software, where it is possible to dynamically edit, process, filter and model <math><mover><mi>V</mi> <mo>˙</mo></mover> </math> O2 post-exercise data and to characterize the <math><mover><mi>V</mi> <mo>˙</mo></mover> </math> O2 on/off symmetry along different exercise intensity domains. Validation datasets were developed and applied to four widely used models for describing low, moderate, heavy and severe intensity transitions. Perfect fits were observed and parameter estimates perfectly matched the known inputted values for all available models (standard error = 0; p < 0.001). In addition, an experiment with 10 trained swimmers performing a 5 x 200 m front crawl protocol (with 0.05 m•s-1 velocity step increments and 3-min passive rest intervals) was conducted. The on- and off-transient phases were symmetrical in their shape since they were both adequately fitted by a mono-exponential regression model and no slow component was observed independently of the intensity domain. Furthermore, the mono-exponential model without time delay best fitted the <math><mover><mi>V</mi> <mo>˙</mo></mover> </math> O2 off-transient data. The mean time constant of the on-transient period value was lower than the respective off-transient for all the intensities (15.8 ± 11.4 vs. 30.8 ± 10.4, 11.3 ± 2.3 vs. 29.7 ± 8.4, 13.9 ± 7.0 vs. 28.7 ± 10.8 and 10.3 ± 4.6 vs. 37.0 ± 9.2 s; p < 0.05). VO2FITTING is valid, free and open-source software for characterizing <math><mover><mi>V</mi> <mo>˙</mo></mover> </math> O2 kinetics during both the exercise and recovery periods, helping researchers to give rapid feedback also about the off-transient kinetic parameters.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"97 ","pages":"89-100"},"PeriodicalIF":1.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12127917/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144216075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predicting Throwing Performance with Force-Velocity Mechanical Properties of the Upper Limb in Experienced Handball Players. 用经验手球运动员上肢力-速度力学特性预测投掷成绩。

IF 1.9 3区医学

Journal of Human Kinetics Pub Date : 2024-12-06 eCollection Date: 2025-01-01 DOI: 10.5114/jhk/190224

Qingshan Zhang, Robin Gassier, Noémie Eymard, Félicie Pommel, Philippe Berthier, Abderrahmane Rahmani, Christophe A Hautier

{"title":"Predicting Throwing Performance with Force-Velocity Mechanical Properties of the Upper Limb in Experienced Handball Players.","authors":"Qingshan Zhang, Robin Gassier, Noémie Eymard, Félicie Pommel, Philippe Berthier, Abderrahmane Rahmani, Christophe A Hautier","doi":"10.5114/jhk/190224","DOIUrl":"10.5114/jhk/190224","url":null,"abstract":"This study investigated the relationship between force-power-velocity (F-P-V) mechanical variables measured during the ballistic bench press throw (BPT), shoulder isokinetic rotation strength, and the throwing velocity in handball players. Twenty-seven experienced male handball players (age: 20.0 ± 3.2 yrs, body height: 180.5 ± 6.3 cm, body mass: 73.9 ± 7.9 kg) volunteered for the investigation. F-P-V mechanical variables (i.e., theoretical maximal force [F0], velocity [V0], power [Pmax]) were obtained during the single-arm BPT and an isokinetic shoulder isokinetic internal rotation test. Throwing performance was assessed for the standing and 3-step throwing velocity. Participants were divided into a \"High/Fast\" and a \"Low/Slow\" group considering their throwing performance based on a median split analysis. A strong correlation was found between V0 obtained from the BPT and maximal throwing velocity for standing throwing (r2 = 0.51, f2 = 1.04) and three-step throwing (r2 = 0.46, f2 = 0.85). At the same time, Pmax obtained from the BPT had a weak association with three-step throwing performance (r2 = 0.18, f2 = 0.22). Furthermore, no significant correlation was found between all the mechanical variables obtained from the isokinetic rotation and throwing performance (all p-values > 0.05). The High/Fast group showed that only V0 and Pmax obtained from the ballistic BPT had a small to moderate effect size (ES [0.06 0.23]) compared to the Low/Slow group. This finding indicates the importance of measuring the upper limb F-P-V profile obtained from the BPT in predicting throwing performance. Thus, training programs should focus on F-P-V mechanical properties to design specific training methods to optimize throwing performance in handball players.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"95 ","pages":"43-53"},"PeriodicalIF":1.9,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11812159/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143408529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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