The overlooked risk in drop jump protocols: higher body weight as a catalyst for increased muscle damage.

IF 2.8 3区 医学 Q1 REHABILITATION
Batuhan Yeniyol, Serkan Pancar, Yusuf Soylu, Yakup Zühtü Bırıncı, Melike Nur Eroğlu, Valentín E Fernández-Elías
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Abstract

Background: The aim of this study was to determine whether muscle damage induced by a drop jump (DJ) protocol differs based on individuals' body weight and body mass index (BMI) levels.

Methods: 50 participants were categorized into two groups: normal weight (BMI: 20.50 ± 1.84) and overweight (BMI: 26.34 ± 2.59). DJ protocol was implemented. Group comparisons were performed using the Mann-Whitney U test, and associations between variables were assessed via Spearman correlation.

Results: No significant difference was found in LDH-pre values between groups (p = .058). However, Lactate Dehydrogenase (LDH) levels were significantly higher in the overweight group both immediately post-exercise (p = .044) and at 24 h post-exercise (p = .010). As significant baseline differences in Creatine Kinase-pre (CK) values were identified, group comparisons were based on percentage changes. CK change ratios were significantly greater in the overweight group across all comparisons: pre/post (p < .001), 24 h/post (p = .013), and 24 h/pre (p < .001). Body weight correlated positively with CK levels at all time points (pre: p = .001; post and 24 h: p < .001), as did BMI (pre: p = .037; post and 24 h: p < .001). Similar positive correlations were observed between body weight and LDH (pre: p = .009; post: p = .001; 24 h: p = .037), and between BMI and LDH (pre: p = .031; post: p < .001; 24 h: p = .022).

Conclusions: DJ protocol does not produce a uniform muscle damage response across individuals with different body weights and BMIs. Participants with higher body weight exhibited significantly greater enzymatic markers of muscle damage, suggesting that increased body weight and BMI may amplify mechanical load and physiological stress during plyometric activity.

Trial registration number: The study was approved by the institutional ethics committee and registered at ClinicalTrials.gov (Registration Date: 2025-06-23, Identifier: NCT07046598).

跳高方案中被忽视的风险:体重增加是肌肉损伤增加的催化剂。
背景:本研究的目的是确定跳降(DJ)方案引起的肌肉损伤是否因个体体重和体重指数(BMI)水平而异。方法:50例受试者分为体重正常组(BMI: 20.50±1.84)和超重组(BMI: 26.34±2.59)。DJ协议实现。采用Mann-Whitney U检验进行组间比较,通过Spearman相关评估变量之间的关联。结果:两组间ldl -pre值差异无统计学意义(p = 0.058)。然而,超重组的乳酸脱氢酶(LDH)水平在运动后立即(p = 0.044)和运动后24小时(p = 0.010)均显著升高。由于确定了肌酸激酶前(CK)值的显著基线差异,各组比较基于百分比变化。在所有的比较中,超重组的CK变化比显著更大:前/后(p)结论:DJ方案不能在不同体重和bmi的个体中产生统一的肌肉损伤反应。体重较高的参与者表现出更大的肌肉损伤酶标记物,这表明体重和BMI的增加可能会增加增强运动期间的机械负荷和生理压力。试验注册号:该研究已获机构伦理委员会批准,并在ClinicalTrials.gov上注册(注册日期:2025-06-23,标识符:NCT07046598)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
BMC Sports Science Medicine and Rehabilitation
BMC Sports Science Medicine and Rehabilitation Medicine-Orthopedics and Sports Medicine
CiteScore
3.00
自引率
5.30%
发文量
196
审稿时长
26 weeks
期刊介绍: BMC Sports Science, Medicine and Rehabilitation is an open access, peer reviewed journal that considers articles on all aspects of sports medicine and the exercise sciences, including rehabilitation, traumatology, cardiology, physiology, and nutrition.
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