期刊
HEALTHCARE
卷 10, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/healthcare10101937
关键词
muscle quality; muscle strength; phase angle; echo intensity
资金
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [491466077]
This review investigates the relationship between phase angle, echo intensity, muscular adipose tissue, muscle fiber type, fascicle pennation angle, fascicle length, muscle oxidative capacity, insulin sensitivity, neuromuscular activation, and motor unit to muscle strength, and has identified several correlations.
Muscle quality defined as the ratio of muscle strength to muscle mass disregards underlying factors which influence muscle strength. The aim of this review was to investigate the relationship of phase angle (PhA), echo intensity (EI), muscular adipose tissue (MAT), muscle fiber type, fascicle pennation angle (theta f), fascicle length (lf), muscle oxidative capacity, insulin sensitivity (IS), neuromuscular activation, and motor unit to muscle strength. PubMed search was performed in 2021. The inclusion criteria were: (i) original research, (ii) human participants, (iii) adults (>= 18 years). Exclusion criteria were: (i) no full-text, (ii) non-English or -German language, (iii) pathologies. Forty-one studies were identified. Nine studies found a weak-moderate negative (range r: [-0.26]-[-0.656], p < 0.05) correlation between muscle strength and EI. Four studies found a weak-moderate positive correlation (range r: 0.177-0.696, p < 0.05) between muscle strength and PhA. Two studies found a moderate-strong negative correlation (range r: [-0.446]-[-0.87], p < 0.05) between muscle strength and MAT. Two studies found a weak-strong positive correlation (range r: 0.28-0.907, p < 0.05) between theta f and muscle strength. Muscle oxidative capacity was found to be a predictor of muscle strength. This review highlights that the current definition of muscle quality should be expanded upon as to encompass all possible factors of muscle quality.
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