Medical Department, Guangxi University of Science and Technology, Liuzhou, Guangxi, China.
Guangxi Medical University, Nanning, Guangxi, China.
Comput Methods Biomech Biomed Engin. 2022 May;25(7):707-720. doi: 10.1080/10255842.2021.1974848. Epub 2021 Sep 16.
At present, available research on the relationship between muscle distribution and respiratory function in healthy people is limited.
To study the relationship between muscle distribution and lung function in healthy young adults.
A total of 612 male and 1561 Female Chinese college students were recruited. visceral fat tissue (VAT), subcutaneous fat tissue (SAT), total body muscle mass (TMM), trunk muscle mass (TKMM), upper limb muscle mass (ULMM) and lower limb muscle mass (LLMM) was measured by body composition. Vital capacity (VC) was measured by spirometry instrument. Obesity classification was defined by muscle mass ratio (MMR), body mass index (BMI), body fat percentage (BFP), waist-to-hip ratio (WHR).
Among these positive correlation parameters, male VC had a high positive correlation with TMM and LLMM, while female VC had a high positive correlation with TMM and TKMM. After the population was divided into MMR, BMI, BFP, and WHR, further analysis showed that VC was positively correlated with TMM for males with MMR-low muscle ( = 0.483; < 0.05), BMI-underweight ( = 0.265; < 0.05), BMI-overweight + obesity ( = 0.272; < 0.05), BFP-low fat ( = 0.306; < 0.05), and WHR-normal subgroups ( = 0.316; < 0.05), while LLMM was positively correlated with VC in the MMR-normal muscle ( = 0.285; < 0.05), BMI-normal ( = 0.305; < 0.05), BFP-normal fat ( = 0.304; < 0.05), and WHR obesity subgroups ( = 0.266; < 0.05). VC was positively correlated with TMM for females with MMR-low muscle ( = 0.169; < 0.05), MMR-normal muscle ( = 0.241; < 0.05), BMI-underweight ( = 0.241; < 0.05), BMI-normal ( = 0.288; < 0.05), WHR normal ( = 0.275; < 0.05), and BFP-low fat subgroups ( = 0.255; < 0.05), while TKMM was positively correlated with VC in the BMI-overweight + obesity ( = 0.342; < 0.05), WHR-obesity ( = 0.227; < 0.05), and BFP-normal subgroups ( = 0.256; < 0.05).
Muscle distribution in young adults is highly correlated with VC, and this relationship is affected by gender and body types. In general, for thin, VC is more positively correlated with TMM, and for normal weight or obese, VC is more positively correlated with LLMM for males but with TKMM for females, respectively, in comparison with other tested indices. Further studies will be required to evaluate the relationship between muscle distribution and vital capacity in young adults.
目前，关于健康人群肌肉分布与呼吸功能之间关系的研究有限。
研究健康年轻成年人的肌肉分布与肺功能之间的关系。
共招募了 612 名男性和 1561 名女性中国大学生。使用体成分仪测量内脏脂肪组织（VAT）、皮下脂肪组织（SAT）、全身肌肉量（TMM）、躯干肌肉量（TKMM）、上肢肌肉量（ULMM）和下肢肌肉量（LLMM）。肺活量（VC）由肺活量计测量。采用肌肉质量比（MMR）、体重指数（BMI）、体脂肪百分比（BFP）、腰臀比（WHR）对肥胖进行分类。
在这些正相关参数中，男性 VC 与 TMM 和 LLMM 呈高度正相关，而女性 VC 与 TMM 和 TKMM 呈高度正相关。在将人群分为 MMR、BMI、BFP 和 WHR 后，进一步分析表明，对于 MMR-低肌肉的男性（ = 0.483； < 0.05）、BMI-体重不足（ = 0.265； < 0.05）、BMI-超重+肥胖（ = 0.272； < 0.05）、BFP-低脂肪（ = 0.306； < 0.05）和 WHR-正常亚组，VC 与 TMM 呈正相关，而对于 MMR-正常肌肉的男性（ = 0.285； < 0.05）、BMI-正常（ = 0.305； < 0.05）、BFP-正常脂肪（ = 0.304； < 0.05）和 WHR-肥胖亚组，LLMM 与 VC 呈正相关。对于 MMR-低肌肉的女性（ = 0.169； < 0.05）、MMR-正常肌肉的女性（ = 0.241； < 0.05）、BMI-体重不足的女性（ = 0.241； < 0.05）、BMI-正常的女性（ = 0.288； < 0.05）、WHR-正常的女性（ = 0.275； < 0.05）和 BFP-低脂肪亚组，VC 与 TMM 呈正相关，而对于 BMI-超重+肥胖的女性（ = 0.342； < 0.05）、WHR-肥胖的女性（ = 0.227； < 0.05）和 BFP-正常亚组，TKMM 与 VC 呈正相关。
年轻成年人的肌肉分布与 VC 高度相关，这种关系受性别和体型的影响。一般来说，对于瘦的人，VC 与 TMM 的相关性更高，对于正常体重或肥胖的人，VC 与 LLMM 的相关性更高，而男性与其他测试指标相比，与 TKMM 的相关性更高，而女性则与其他测试指标相比，与 TKMM 的相关性更高。需要进一步的研究来评估年轻成年人的肌肉分布与肺活量之间的关系。
