Journal of Human Kinetics最新文献_第2页

Performance of Elite Women's Singles Badminton Players: The Influence of Left-Handed Players. 羽毛球女子单打精英选手的表现：左撇子选手的影响。

IF 2.3 3区医学

Journal of Human Kinetics Pub Date : 2023-11-28 eCollection Date: 2024-04-01 DOI: 10.5114/jhk/172783

Yibo Zhang, Bo Leng

引用次数: 0

Physiological Responses to Supramaximal Running Exercise with End-Expiratory Breath Holding up to the Breaking Point. 呼气末憋气达到临界点的超极限跑步运动的生理反应。

IF 2.3 3区医学

Journal of Human Kinetics Pub Date : 2023-11-28 eCollection Date: 2024-01-01 DOI: 10.5114/jhk/174465

Xavier Woorons, Frédéric Daussin, Adrien Combes, Patrick Mucci

{"title":"Physiological Responses to Supramaximal Running Exercise with End-Expiratory Breath Holding up to the Breaking Point.","authors":"Xavier Woorons, Frédéric Daussin, Adrien Combes, Patrick Mucci","doi":"10.5114/jhk/174465","DOIUrl":"10.5114/jhk/174465","url":null,"abstract":"This study aimed to assess the physiological responses to repeated running exercise performed at supramaximal intensity and with end-expiratory breath holding (EEBH) up to the breaking point. Eight male runners participated in two running testing sessions on a motorized treadmill. In the first session, participants performed two sets of 8 repetitions at 125% of maximal aerobic velocity and with maximum EEBH. Each repetition started at the onset of EEBH and ended at its release. In the second session, participants replicated the same procedure, but with unrestricted breathing (URB). The change in cerebral and muscle oxygenation (Δ[Hbdiff]), total haemoglobin concentration (Δ[THb]) and muscle reoxygenation were continuously assessed. End-tidal oxygen (PETO2) and carbon dioxide pressure (PETCO2), arterial oxygen saturation (SpO2) and heart rate (HR) were also measured throughout exercise.On average, EEBH was maintained for 10.1 ± 1 s. At the breaking point of EEBH, PETO2 decreased to 54.1 ± 8 mmHg, whereas PETCO2 increased to 74.8 ± 3.1 mmHg. At the end of repetitions, SpO2 (nadir values 74.9 ± 5.0 vs. 95.7 ± 0.8%) and HR were lower with EEBH than with URB. Cerebral and muscle Δ[Hbdiff] were also lower with EEBH, whereas this condition induced higher cerebral and muscle Δ[THb] and greater muscle reoxygenation. This study showed that performing repeated bouts of supramaximal running exercises with EEBH up to the breaking point induced a fall in arterial, cerebral and muscle oxygenation compared with the URB condition. These phenomena were accompanied by increases in regional blood volume likely resulting from compensatory vasodilation to preserve oxygen delivery to the brain and muscles.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"90 ","pages":"111-123"},"PeriodicalIF":2.3,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10875693/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139912813","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

Can the Entire Function of the Foot Be Concentrated in the Forefoot Area during the Running Stance Phase? A Finite Element Study of Different Shoe Soles. 在跑步站立阶段，足部的全部功能都能集中在前脚掌区域吗？不同鞋底的有限元研究。

IF 2.3 3区医学

Journal of Human Kinetics Pub Date : 2023-11-28 eCollection Date: 2024-04-01 DOI: 10.5114/jhk/174311

Huiyu Zhou, Datao Xu, Wenjing Quan, Ukadike Chris Ugbolue, Zhanyi Zhou, Yaodong Gu

{"title":"Can the Entire Function of the Foot Be Concentrated in the Forefoot Area during the Running Stance Phase? A Finite Element Study of Different Shoe Soles.","authors":"Huiyu Zhou, Datao Xu, Wenjing Quan, Ukadike Chris Ugbolue, Zhanyi Zhou, Yaodong Gu","doi":"10.5114/jhk/174311","DOIUrl":"10.5114/jhk/174311","url":null,"abstract":"The goal of this study was to use the finite element (FE) method to compare and study the differences between bionic shoes (BS) and normal shoes (NS) forefoot strike patterns when running. In addition, we separated the forefoot area when forefoot running as a way to create a small and independent area of instability. An adult male of Chinese descent was recruited for this investigation (age: 26 years old; body height: 185 cm; body mass: 82 kg) (forefoot strike patterns). We analyzed forefoot running under two different conditions through FE analysis, and used bone stress distribution feature classification and recognition for further analysis. The metatarsal stress values in forefoot strike patterns with BS were less than with NS. Additionally, the bone stress classification of features and the recognition accuracy rate of metatarsal (MT) 2, MT3 and MT5 were higher than other foot bones in the first 5%, 10%, 20% and 50% of nodes. BS forefoot running helped reduce the probability of occurrence of metatarsal stress fractures. In addition, the findings further revealed that BS may have important implications for the prevention of hallux valgus, which may be more effective in adolescent children. Finally, this study presents a post-processing method for FE results, which is of great significance for further understanding and exploration of FE results.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"92 ","pages":"5-17"},"PeriodicalIF":2.3,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11079938/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140912506","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

Is There a Relative Age Effect among the Most Successful Track and Field Athletes? 最成功的田径运动员是否存在相对年龄效应？

IF 2.3 3区医学

Journal of Human Kinetics Pub Date : 2023-11-28 eCollection Date: 2024-04-01 DOI: 10.5114/jhk/174497

Eduard Bezuglov, Nadezhda Semeniuk, Maria Shoshorina, Evgeny Savin, Zbigniew Waśkiewicz, Anton Emanov, Georgiy Malyakin, Danila Telyshev, Ryland Morgans

{"title":"Is There a Relative Age Effect among the Most Successful Track and Field Athletes?","authors":"Eduard Bezuglov, Nadezhda Semeniuk, Maria Shoshorina, Evgeny Savin, Zbigniew Waśkiewicz, Anton Emanov, Georgiy Malyakin, Danila Telyshev, Ryland Morgans","doi":"10.5114/jhk/174497","DOIUrl":"10.5114/jhk/174497","url":null,"abstract":"The prevalence of the Relative Age Effect (RAE) was studied among medalists from the World Athletics Championships at U18, U20 and Senior age groups and from the Olympic Games from 2000 to 2022. The specific events examined were the 100, 200, 400, 800, 1500, and 3000/5000 m, the long jump, the triple jump, the high jump and the pole vault. Dates of birth from 1,858 outdoor track and field athletes were analysed and further divided into four groups according to the quartile of birth. The RAE was found to be widespread among athletes of both sexes in U18 and U20 age groups in all examined disciplines. There was no difference between the most successful U18 and U20 athletes (p = 0.52). Among senior athletes of both sexes, this effect was not detected and the number of \"late-born\" athletes in this age group was higher than athletes born in the first three quarters. The prevalence of the RAE across the four groups of events was found in U18 and U20 age groups. Additionally, within each age group, the difference among events was statistically significant. In most successful track and field athletes, the RAE is only significant in U18 and U20 age groups. In senior athletes, the number of \"late-born\" athletes is significant while RAE disappears. These data may be considered when assessing the athletic potential of an individual athlete.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"92 ","pages":"193-202"},"PeriodicalIF":2.3,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11079924/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140912521","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

Reliability of a Trunk Flexion and Extensor Muscle Strength Test with Hand-Held and Isokinetic Dynamometers in Female Athletes. 使用手持式测功机和等动式测功机对女性运动员进行躯干屈伸肌力测试的可靠性。

IF 2.3 3区医学

Journal of Human Kinetics Pub Date : 2023-11-28 eCollection Date: 2024-04-01 DOI: 10.5114/jhk/172640

Casto Juan-Recio, Amaya Prat-Luri, David Barbado, Francisco J Vera-Garcia, Víctor Moreno-Pérez

{"title":"Reliability of a Trunk Flexion and Extensor Muscle Strength Test with Hand-Held and Isokinetic Dynamometers in Female Athletes.","authors":"Casto Juan-Recio, Amaya Prat-Luri, David Barbado, Francisco J Vera-Garcia, Víctor Moreno-Pérez","doi":"10.5114/jhk/172640","DOIUrl":"10.5114/jhk/172640","url":null,"abstract":"An accurate trunk muscle strength assessment seems very important to design and individualize training and rehabilitation programs in clinical and sport settings. Hand-held dynamometers (HHDs) are interesting alternatives to isokinetic dynamometers for assessing trunk isometric muscle strength because they are inexpensive instruments and easy to use. This cross-sectional observational study aimed to examine the reliability of two novel sitting tests for assessing trunk flexion and extension isometric strength using an HHD and their relationship with two other novel isometric tests that use an isokinetic dynamometer. Twenty-four female amateur athletes (age: 24.5 ± 2.64 years; body height: 164.45 ± 6.33 cm; body mass: 63.17 ± 10.35 kg) participated in this study. A test-retest design was carried out one-week apart to examine the reliability. The relationship and the degree of agreement between the HHD and the isokinetic dynamometer measurements were analysed using Pearson correlation and Bland-Altman analysis, respectively. In general, the reliability of all isometric strength tests was good, with ICCs ranging from 0.65 to 0.87 and typical error < 15%. Pearson correlations were moderate, with values of r = 0.47 (R2 = 0.22) and r = 0.42 (R2 = 0.18) for flexion and extension strength, respectively. Bland-Altman plots showed no agreement between HHDs and isokinetic measurements. All trunk isometric tests using both, an isokinetic dynamometer and HHDs, provide reliable measurements for assessing trunk flexion and extension strength. According to the comparative analysis, both measurement types are different and cannot be used interchangeably. Health and sport professionals should choose the test that best suits the biomechanical characteristics required for functional goals or success in a given sport.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"92 ","pages":"43-52"},"PeriodicalIF":2.3,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11079922/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140912462","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

Contribution of Trunk Rotation and Abdominal Muscles to Sprint Kayak Performance. 躯干旋转和腹部肌肉对皮划艇短跑成绩的贡献。

IF 2.3 3区医学

Journal of Human Kinetics Pub Date : 2023-11-28 eCollection Date: 2024-01-01 DOI: 10.5114/jhk/169939

Mathew B Brown, Russell Peters, Lauder Mike A

{"title":"Contribution of Trunk Rotation and Abdominal Muscles to Sprint Kayak Performance.","authors":"Mathew B Brown, Russell Peters, Lauder Mike A","doi":"10.5114/jhk/169939","DOIUrl":"10.5114/jhk/169939","url":null,"abstract":"Over the past two decades the importance of trunk contribution to sporting performance has been highlighted through the expanse of literature concerning core stability and strength. However, the role of trunk motion and the abdominal muscles are yet to be established during sprint kayak performance. The purpose of this study was to determine the associations among trunk rotation, kayak velocity, and abdominal muscle activity during on-water sprint kayaking. Eight international paddlers completed five 150 m sprint trials. During each trial peak muscle activation (peak root-mean-squared electromyogram) of the latissimus dorsi, rectus abdominus, external obliques and rectus femoris for ipsilateral (stroke side) and contralateral (opposite side) were recorded as the paddler passed through a 5-m calibrated volume, in conjunction with upper and lower trunk rotation and kayak velocity. Results indicated a significant strong negative relationship between lower trunk rotation and peak velocity (r = -0.684, p < 0.05). Furthermore, a significant strong positive relationship (p < 0.05) with mean velocity was identified for the contralateral rectus abdominus and multiple significant associations between the rectus femoris, rectus abdominus and external obliques during the paddle stroke. Findings indicate that limiting the rotation of the lower trunk will increase both the peak and the mean velocity, with the rectus abdominus, external oblique and rectus femoris combining to assist in this process. Training should therefore focus on developing the strength of these muscle groups to enhance performance.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"90 ","pages":"5-15"},"PeriodicalIF":2.3,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10875689/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139912811","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

Understanding the Importance of Drag Coefficient Assessment for a Deeper Insight into the Hydrodynamic Profile of Swimmers. 了解阻力系数评估对深入了解游泳者水动力特征的重要性。

IF 2.3 3区医学

Journal of Human Kinetics Pub Date : 2023-11-28 eCollection Date: 2024-04-01 DOI: 10.5114/jhk/172492

Jorge E Morais, Daniel A Marinho, Raul F Bartolomeu, Tiago M Barbosa

{"title":"Understanding the Importance of Drag Coefficient Assessment for a Deeper Insight into the Hydrodynamic Profile of Swimmers.","authors":"Jorge E Morais, Daniel A Marinho, Raul F Bartolomeu, Tiago M Barbosa","doi":"10.5114/jhk/172492","DOIUrl":"10.5114/jhk/172492","url":null,"abstract":"The main objective of this study was to confirm that the passive drag coefficient is less dependent on swimming speed than the passive drag, Froude, and Reynolds numbers, even as swimming speed increases. The sample consisted of 12 young proficient non-competitive swimmers (seven males and five females: 20.4 ± 1.9 years). Passive drag was measured with a low-voltage isokinetic engine at 1.2, 1.4, 1.6 and 1.8 m/s. The frontal surface area was measured using digital photogrammetry. Passive drag showed significant differences with a strong effect size over the four towing speeds measured (F = 116.84, p < 0.001, η2 = 0.91) with a quadratic relationship with speed. The Froude and Reynolds numbers had similar trends, but with linear relationships. Conversely, the passive drag coefficient showed non-significant differences across the four towing speeds (F = 3.50, p = 0.062, η2 = 0.33). This strongly suggests that the passive drag coefficient should be the variable of choice for monitoring the hydrodynamic profile of swimmers rather than the absolute value of passive drag.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"92 ","pages":"19-27"},"PeriodicalIF":2.3,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11079927/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140913690","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

Nonlinear Analysis of the Hand and Foot Force-Time Profiles in the Four Competitive Swimming Strokes. 四种竞技泳姿的手脚力-时间曲线非线性分析

IF 2.3 3区医学

Journal of Human Kinetics Pub Date : 2023-11-28 eCollection Date: 2024-01-01 DOI: 10.5114/jhk/172616

Raul Filipe Bartolomeu, Pedro Rodrigues, Kamil Sokołowski, Marek Strzała, Catarina Costa Santos, Mário Jorge Costa, Tiago Manuel Barbosa

{"title":"Nonlinear Analysis of the Hand and Foot Force-Time Profiles in the Four Competitive Swimming Strokes.","authors":"Raul Filipe Bartolomeu, Pedro Rodrigues, Kamil Sokołowski, Marek Strzała, Catarina Costa Santos, Mário Jorge Costa, Tiago Manuel Barbosa","doi":"10.5114/jhk/172616","DOIUrl":"10.5114/jhk/172616","url":null,"abstract":"Human locomotion on water depends on the force produced by the swimmer to propel the body forward. Performance of highly complex motor tasks like swimming can yield minor variations that only nonlinear analysis can be sensitive enough to detect. The purpose of the present study was to examine the nonlinear properties of the hand/feet forces and describe their variations across the four competitive swimming strokes performing segmental and full-body swimming. Swimmers performed all-out bouts of 25 m in the four swimming strokes, swimming the full-body stroke, with the arm-pull only and with the leg kicking only. Hand/foot force and swimming velocity were measured. The Higuchi's fractal dimension (HFD) and sample entropy (SampEn) were used for the nonlinear analysis of force and velocity. Both the arm-pull and leg kicking alone were found to produce similar peak and mean hand/foot forces as swimming the full-body stroke. Hand force was more complex in breaststroke and butterfly stroke; conversely, kicking conditions were more complex in front crawl and backstroke. Moreover, the arm-pull and kicking alone tended to be more complex (higher HFD) but more predictable (lower SampEn) than while swimming the full-body stroke. There was no loss of force production from segmental swimming to the full-body counterpart. In conclusion, the number of segments in action influences the nonlinear behavior of the force produced and, when combining the four limbs, the complexity of the hand/foot force tends to decrease.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"90 ","pages":"71-88"},"PeriodicalIF":2.3,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10875684/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139912812","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

Weekly Training Load Differences between Starting and Non-Starting Soccer Players. 首发和非首发足球运动员每周训练负荷的差异。

IF 2.3 3区医学

Journal of Human Kinetics Pub Date : 2023-11-28 eCollection Date: 2024-01-01 DOI: 10.5114/jhk/171449

Matej Varjan, Mikulas Hank, Maros Kalata, Paweł Chmura, Lucia Mala, Frantisek Zahalka

{"title":"Weekly Training Load Differences between Starting and Non-Starting Soccer Players.","authors":"Matej Varjan, Mikulas Hank, Maros Kalata, Paweł Chmura, Lucia Mala, Frantisek Zahalka","doi":"10.5114/jhk/171449","DOIUrl":"10.5114/jhk/171449","url":null,"abstract":"The aim of this study was to examine the differences in the weekly training load between starters and non-starters classified based on the match starting line-up, with respect to the playing position and a training day. Notably, 31 young adult soccer players (age: 18.79 ± 1.04 years) competing in the 3rd Czech division were monitored across the season. The weekly training load was measured using a GPS system as follows: total distance covered (TD), high-speed running distance (HSR), sprint running distance (SR), and acceleration and deceleration distance (ACDC). We found higher values in three out of four observed variables (HSR, SR, and ACDC, excluding TD) for starters compared to non-starters (p < 0.05), with small to moderate effect sizes (d = 0.40-0.49). Differences were observed especially in players who were fullbacks, offensive midfielders, and forwards. Moreover, the largest differences were found in training prior to a match day for HSR, SR, and ACDC (p < 0.05). Non-starters experienced lower weekly external loads in offensive player positions, predominantly in high-intensity variables, which are essential for their physical performance. It seems that non-starters may experience potential under-loading in the training process. Coaches and practitioners should be aware of this potential risk and find an appropriate method to compensate for load discrepancies, particularly in terms of high-intensity activities.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"90 ","pages":"125-135"},"PeriodicalIF":2.3,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10875698/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139912815","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 Effects of Loaded and Unloaded Whole-Body Vibration on Vertical Jump Performance in Karate Athletes. 有载和无载全身振动对空手道运动员垂直跳跃成绩的急性影响

IF 2.3 3区医学

Journal of Human Kinetics Pub Date : 2023-11-28 eCollection Date: 2024-04-01 DOI: 10.5114/jhk/172637

Haris Pojskic, Željko Zombra, Jad Adrian Washif, Jeffrey Pagaduan

{"title":"Acute Effects of Loaded and Unloaded Whole-Body Vibration on Vertical Jump Performance in Karate Athletes.","authors":"Haris Pojskic, Željko Zombra, Jad Adrian Washif, Jeffrey Pagaduan","doi":"10.5114/jhk/172637","DOIUrl":"10.5114/jhk/172637","url":null,"abstract":"We investigated the acute effects of different whole-body vibration (WBV) interventions on the jump height of highly trained karate practitioners. Fifteen male karate club athletes (age: 20.0 ± 3.8 years; stature: 177.3 ± 4.7 cm; body mass: 76.9 ± 11.2 kg; % body fat: 9.2 ± 4.3) performed six randomized interventions: [a] static half-squat (SHS); [b] SHS with external loads at 30% of the body weight (SHS + 30%BW); [c] WBV at frequency (f) 25 Hz, and 2 mm amplitude (A) (WBV 25/2); [d] WBV 25/2 with external loads of 30% of the body weight (WBV 25/2 + 30% BW); [e] WBV at f = 50 Hz, and A = 4 mm (WBV 50/4), and [f] WBV 50/4 with external loads of 30% of the body weight (WBV 50/4 + 30% BW). Each intervention was performed for 5 sets at 60 s/set, with a rest interval of 30 s between sets. Countermovement jump (CMJ) data were collected at 2, 4, 6, 8 and 10 min after each preconditioning intervention. Two-way repeated-measures ANOVA revealed a non-significant main effect of intervention [F(5, 10) = 1.44, η2 = 0.42, p = 0.29)] and a significant main effect of the rest interval [F(4, 11) = 3.51, η2 = 0.56, p = 0.04)] on CMJ height. A rest interval of 4 min resulted in significantly higher CMJ values than a rest interval of 2 min (p = 0.031). In conclusion, utilizing a 4-min rest interval irrespective of the intervention schemes may have potential for enhancing jumping performance among highly trained karate athletes.","PeriodicalId":16055,"journal":{"name":"Journal of Human Kinetics","volume":"92 ","pages":"203-212"},"PeriodicalIF":2.3,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11079925/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140912461","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