决定登山者成绩的因素是区域身体成分和力量,而非总体身体成分。

IF 2.6 Q1 SPORT SCIENCES
Fernando Carrasco, Maria Jose Arias-Tellez, Ignacio Solar-Altamirano, Jorge Inostroza, Gabriela Carrasco
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引用次数: 0

摘要

目的比较不同成绩水平的智利攀岩运动员的身体成分,并分别确定前臂和上躯干瘦体重与手握力量和上肢牵引力量之间的关系。研究方法对 30 名智利成年男性攀岩运动员(26.1 ± 4.9 岁)进行了横断面研究,其中 9 人属于中级水平(L1),11 人属于高级水平(L2),10 人属于精英水平(L3)。通过双能量 X 射线吸收测量法(DXA;Lunar Prodigy®),测量了脂肪质量百分比(FM%)、总瘦肉质量(LM)、前臂瘦肉质量(FLM)和上躯干瘦肉质量(UTLM)。此外,还估算了肌肉总质量(TMM)。使用 Jamar® 测力计测量了手握力(HGS)。最大上身牵引力(UBTS)通过标准化动作进行评估。攀爬水平根据 IRCRA 规则进行评估。结果显示各组之间的FM%、总LM、UTLM或TMM均无差异。L3 组的左侧和辅助 FLM 明显更高(p = 0.047 和 0.041)。HGS的绝对值、相对值和根据FLM调整的值在组间没有差异。FLM 与所有节段的 HGS 都相关(p ≤ 0.001)。L3 的 UBTS 绝对值和经 TMM 调整后的 UBTS 绝对值显著较高(分别为 p = 0.047 和 p = 0.049)。结论精英攀岩运动员左前臂和非优势前臂的瘦体重明显更高。精英攀岩运动员的手握力量并没有明显增加;但是,精英攀岩运动员的上半身牵引力量明显增加,这与总肌肉量或区域肌肉量无关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Regional Body Composition and Strength, Not Total Body Composition, Are Determinants of Performance in Climbers.

Objective: To compare the body composition of Chilean climbers of different performance levels and to determine the relation between the forearm and upper-trunk lean mass and the handgrip and upper-body traction strength, respectively. Methods: A cross-sectional study was carried out on thirty Chilean male adult climbers (26.1 ± 4.9 y.): nine of intermediate level (L1), eleven advanced (L2), and ten elite (L3). Through dual-energy X-Ray absorptiometry (DXA; Lunar Prodigy®), fat mass percentage (FM%), total lean mass (LM), forearm lean mass (FLM), and upper-trunk lean mass (UTLM) were measured. Total muscle mass (TMM) was also estimated. Handgrip strength (HGS) was measured with a Jamar® dynamometer. Maximum upper-body traction strength (UBTS) was evaluated with a standardized movement. The level of climbing was assessed according to IRCRA rules. Results: No differences in FM%, total LM, UTLM, or TMM between the groups were found. Left and assistant FLM were significantly higher in L3 (p = 0.047 and 0.041, respectively). HGS absolute, relative, and adjusted by FLM were not different between groups. FLM was associated with HGS in all segments (p ≤ 0.001). UBTS absolute values, and as adjusted by TMM, were significantly higher in L3 (p = 0.047 and p = 0.049, respectively). Conclusions: Left and non-dominant forearm lean mass were significantly higher in elite climbers. Handgrip strength was not significantly higher in elite climbers; however, the upper-body traction strength was significantly higher in elite climbers, independent of total or regional muscle mass.

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来源期刊
Journal of Functional Morphology and Kinesiology
Journal of Functional Morphology and Kinesiology Health Professions-Physical Therapy, Sports Therapy and Rehabilitation
CiteScore
4.20
自引率
0.00%
发文量
94
审稿时长
12 weeks
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