Cross-sectional study on muscular endurance and blood flow of the human forearm with the male and female subjects aged 19 to 75 years / 体力科学

ABSTRACT

Muscular endurance and blood flow of the forearm were measured in 65 healthy male and 53 healthy female subjects, all aged 19-75 years. Muscular endurance was measured using a hand-ergometer with a load equal to 1/3 of the maximum grip-strength of the subject. The blood flow in the forearm was determined before and immediately after exercise using mercury-in-rubber strain-gauge venous occlusion plethysmography.<BR>The following results were obtained<BR>1) The muscular endurance of both the male and female subjects was observed to increase with age (p<0.05) .<BR>2) The forearm blood flow before exercise by the male and female participants was did not change with age (p>0.05) . However, the forearm blood flow immediately after exercise showed a tendency to increase with age in both groups (p<0.05) .<BR>3) A close relationship was found between muscular endurance and forearm blood flow immediately after exercise in both the male group (r=0.584, p<0.001) and the female group (r=0.776, p<0.001) .<BR>4) In forearm blood flow (both before and immediately after exercise) and muscular endurance, differences between male and female subjects in the same age group were not significant (p>0.05) .<BR>5) These results agree with some of the changes seen in the morphorogical muscle characteristics with aging.