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Background <p>An excessively sedentary lifestyle is associated with many negative health consequences, including musculoskeletal diseases. Dietary branched-chain amino acids (BCAAs) play an important role in muscle metabolism and function.</p> Aim <p>The aim of this study was to evaluate the relationship between dietary BCAA intake and triceps and biceps brachii upper extremity muscle tone, stiffness, and elasticity measured by hand grip strength (HGS) and MyotonPro.</p> Method <p>In this cross-sectional study, data collected from 76 young women aged 18–24&#xa0;years were analyzed. To collect the data, the Descriptive Information Form, International Physical Activity Questionnaire-Short Form (IPAQ-SF), and food frequency questionnaire (FFQ) were used. The participants’ height, body weight, HGS, and muscle viscoelastic properties were measured. In data analysis,&#xa0;descriptive statistics&#xa0;and both simple and multiple linear regression analyses were performed.</p> Results <p>The mean total BCAA intake of the participants was 11.2 ± 3.6&#xa0;g/day. The dietary BCAAs intake was significantly positively related to HGS (Model 1 (<i>β</i>, 0.286; <i>p</i> &lt; 0.05), Model 2 (<i>β</i>, 0.444;<i> p</i> &lt; 0.05)). The dietary total BCAAs intake was significantly positively related to biceps brachii tone (Model 1 (<i>β</i>, 0.304; <i>p</i> &lt; 0.05), Model 2 (<i>β</i>, 0.457; <i>p</i> &lt; 0.05)), biceps brachii stiffness (Model 1 (<i>β</i>, 0.293; <i>p</i> &lt; 0.05), Model 2 (<i>β</i>, 0.525; <i>p</i> &lt; 0.05)), and triceps brachii stiffness (Model 1 (<i>β</i>, 0.345; <i>p</i> &lt; 0.05), Model 2 (<i>β</i>, 0.363; <i>p</i> &lt; 0.05)), whereas dietary BCAAs were not related to biceps brachii elasticity, triceps brachii tone, and elasticity (<i>p</i> &gt; 0.05).</p> Conclusion <p>The results of the study support the potential effects of dietary BCAA intake on HGS, muscle tone, and stiffness characteristics in sedentary young women.</p>

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The association of dietary branched-chain amino acid intake with hand grip strength and muscular viscoelastic properties in sedentary young women: a cross-sectional study

  • 期刊论文

  • 发表日期：

    2025年8月8日

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  • Ramazan Mert Atan,
  • Derya Azim

摘要

Background

An excessively sedentary lifestyle is associated with many negative health consequences, including musculoskeletal diseases. Dietary branched-chain amino acids (BCAAs) play an important role in muscle metabolism and function.

Aim

The aim of this study was to evaluate the relationship between dietary BCAA intake and triceps and biceps brachii upper extremity muscle tone, stiffness, and elasticity measured by hand grip strength (HGS) and MyotonPro.

Method

In this cross-sectional study, data collected from 76 young women aged 18–24 years were analyzed. To collect the data, the Descriptive Information Form, International Physical Activity Questionnaire-Short Form (IPAQ-SF), and food frequency questionnaire (FFQ) were used. The participants’ height, body weight, HGS, and muscle viscoelastic properties were measured. In data analysis, descriptive statistics and both simple and multiple linear regression analyses were performed.

Results

The mean total BCAA intake of the participants was 11.2 ± 3.6 g/day. The dietary BCAAs intake was significantly positively related to HGS (Model 1 (β, 0.286; p < 0.05), Model 2 (β, 0.444; p < 0.05)). The dietary total BCAAs intake was significantly positively related to biceps brachii tone (Model 1 (β, 0.304; p < 0.05), Model 2 (β, 0.457; p < 0.05)), biceps brachii stiffness (Model 1 (β, 0.293; p < 0.05), Model 2 (β, 0.525; p < 0.05)), and triceps brachii stiffness (Model 1 (β, 0.345; p < 0.05), Model 2 (β, 0.363; p < 0.05)), whereas dietary BCAAs were not related to biceps brachii elasticity, triceps brachii tone, and elasticity (p > 0.05).

Conclusion

The results of the study support the potential effects of dietary BCAA intake on HGS, muscle tone, and stiffness characteristics in sedentary young women.