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Association of Skeletal Muscle Strength and Body Fat Distribution on Pulmonary Functions

Objectives: The body's muscle strength and fat distribution are essential for a normal, healthy life.  This study aimed to assess a link between pulmonary function tests, upper and lower extremity muscular strength, and body fat distribution in Saudi males.
Methodology: This cross-sectional study was conducted in the department of physiology at the College of Medicine, King Saud University, Riyadh, Saudi Arabia. A total of 106 participants were invited, ranging from 20-47 years old. The participants were divided into three groups, with ages ranging from 20-29 years old, 30-39 years old, and 40–47 years old. The handgrip and thigh muscle strength was assessed using isometric dynamometry. Pulmonary function tests were performed according to the American Thoracic Society's guidelines and recommendations.
Results: There was no significant difference between the three age groups in upper and lower limb muscle strength. The handgrip strength was stable from 20 to 47 years, ranging from 37 to 39. The thigh muscle strength was not affected by age among the three age groups. Skinfold measurement of the upper body showed no significant differences in biceps and triceps. However, skinfold measurements of subscapular and supra iliac were different significantly.
Conclusion: There was no association between the age groups in upper and lower limbs muscle strength. It’s suggested that further large studies will be conducted to explore the findings and reach better conclusions.