Effects of muscle quantity, muscle quality, and phase angle on whole-body reaction time in 5164 adults aged 20-91 years.

IF 2.8 3区医学 Q2 PHYSIOLOGY European Journal of Applied Physiology Pub Date : 2024-09-08 DOI:10.1007/s00421-024-05591-3

Wataru Fukuda, Takeshi Yoshihisa, Yosuke Yamada

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引用次数: 0

Abstract

Purpose: Muscle quantity, defined as appendicular lean mass (ALM); muscle quality, defined as the ratio of muscle strength to ALM; and bioelectrical impedance analysis (BIA)-derived phase angle (PhA) are determinants of physical performance. We examined whether muscle quality indices were significant predictors of the whole-body reaction time (WBRT) in healthy female and male adults aged 20-91 years.

Methods: Data from 5164 adults (2869 women and 2295 men; mean age ± standard deviation, 60.9 ± 15.6 years) were analyzed. Height and weight were measured, and body mass index was calculated. ALM was estimated using a previously validated 8-electrode multi-frequency BIA. PhA was measured at 50 kHz using a BIA device. Knee extension strength (KES), leg extension power (LEP), and flexibility were examined. The ALM to weight (ALM/weight), KES to ALM (KES/ALM), and LEP to KES (LEP/KES) ratios were calculated. In the WBRT test, participants were asked to stand on a force plate and jump upright as quickly as possible in response to a light stimulus. The WBRT was divided into the response initiation and motion execution phases.

Results: ALM/weight, KES/ALM, LEP/KES, PhA, and flexibility were significant independent predictors of WBRT and the time of the motion execution phase (p < 0.001). However, PhA was not a significant predictor of the time of response initiation phase.

Conclusion: Muscle quantity (ALM/weight), muscle quality (KES/ALM and LEP/KES), PhA, and flexibility are determinants of WBRT test performance, particularly in the motion execution phase.

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肌肉数量、肌肉质量和相位角对 5164 名 20-91 岁成年人全身反应时间的影响。

目的：肌肉数量（定义为附属瘦体重（ALM））、肌肉质量（定义为肌肉力量与 ALM 之比）和生物电阻抗分析（BIA）得出的相位角（PhA）是体能表现的决定因素。我们研究了肌肉质量指数是否能显著预测 20-91 岁健康女性和男性成年人的全身反应时间（WBRT）：分析了 5164 名成年人（女性 2869 人，男性 2295 人；平均年龄（± 标准差）：60.9 ± 15.6 岁）的数据。测量了身高和体重，并计算了体重指数。使用先前验证的 8 个电极多频率 BIA 估算 ALM。使用 BIA 设备在 50 kHz 频率下测量 PhA。对膝关节伸展力量（KES）、腿部伸展力量（LEP）和柔韧性进行了检查。计算了 ALM 与体重（ALM/体重）、KES 与 ALM（KES/ALM）以及 LEP 与 KES（LEP/KES）的比率。在 WBRT 测试中，参与者被要求站在受力板上，并在轻微刺激下尽快直立跳起。WBRT 测试分为反应开始阶段和动作执行阶段：结果：ALM/重量、KES/ALM、LEP/KES、PhA 和柔韧性对 WBRT 和动作执行阶段的时间有显著的独立预测作用（P肌肉数量（ALM/重量）、肌肉质量（KES/ALM 和 LEP/KES）、PhA 和柔韧性是 WBRT 测试成绩的决定因素，尤其是在动作执行阶段。

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来源期刊

European Journal of Applied Physiology 医学-生理学

CiteScore

6.00

自引率

6.70%

发文量

227

审稿时长

3 months

期刊介绍： The European Journal of Applied Physiology (EJAP) aims to promote mechanistic advances in human integrative and translational physiology. Physiology is viewed broadly, having overlapping context with related disciplines such as biomechanics, biochemistry, endocrinology, ergonomics, immunology, motor control, and nutrition. EJAP welcomes studies dealing with physical exercise, training and performance. Studies addressing physiological mechanisms are preferred over descriptive studies. Papers dealing with animal models or pathophysiological conditions are not excluded from consideration, but must be clearly relevant to human physiology.