MUSCLE ARCHITECTURE AND STRENGTH: ADAPTATIONS TO SHORT- TERM RESISTANCE TRAINING IN OLDER ADULTS

被引：112

作者：

Scanlon, Tyler C. ^{[1
]}

Fragala, Maren S. ^{[1
]}

Stout, Jeffrey R. ^{[1
]}

Emerson, Nadia S. ^{[1
]}

Beyer, Kyle S. ^{[1
]}

Oliveira, Leonardo P. ^{[2
]}

Hoffman, Jay R. ^{[1
]}

机构：

[1] Univ Cent Florida, Inst Exercise Physiol & Wellness, Orlando, FL 32816 USA

[2] Univ Cent Florida, Coll Med, Orlando, FL 32816 USA

来源：

MUSCLE & NERVE | 2014年 / 49卷 / 04期

关键词：

echo intensity; exercise; muscle quality; sarcopenia; ultrasonography; HUMAN SKELETAL-MUSCLE; MEN; HYPERTROPHY; PERFORMANCE; SARCOPENIA; EXERCISE; FORCE; POWER;

D O I：

10.1002/mus.23969

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

Introduction: Muscle morphology and architecture changes in response to 6 weeks of progressive resistance training were examined in healthy older adults. Methods: In this randomized, controlled design, muscle strength, quality, and architecture were evaluated with knee extension, DEXA, and ultrasound, respectively, in 25 older adults. Results: Resistance training resulted in significant increases in strength and muscle quality of 32% and 31%, respectively. Cross-sectional area of the vastus lateralis increased by 7.4% (p0.05). Physiological cross-sectional area (PCSA) of the thigh, a composite measure of muscle architecture, was related significantly to strength (r=0.57; p0.01) and demonstrated a significant interaction after training (p0.05). Change in PCSA of the vastus lateralis was associated with change in strength independent of any other measure. Conclusions: Six weeks of resistance training was effective at increasing strength, muscle quality, and muscle morphology in older adult men and women. Muscle Nerve 49:584-592, 2014

引用

页码：584 / 592

页数：9

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