Effects of Strength Exercise Combined with KAATSU on Muscle Mass and Muscle Strength in the Elderly with Sarcopenia
Objective:To explore the effect of lower extremity muscle strength exercise com-bined with KAATSU exercise on enhancing muscle mass,muscle strength.Methods:Forty-eight elderly sarcopenia subjects who met the experimental conditions were screened and ran-domly divided into three groups:the quiet control group(C,n=16),maintained the original sta-tus of life without intervention;the lower extremity muscle strength training group(ST,n=16),performed special lower limb muscle strength exercises in six action modes in turn;the lower extremity compression muscle strength training group(KT,n=16),the proximal thigh was bound and pressurized by professional compression instrument,and the exercise method was the same as that of ST group.Two-factor analysis of variance was used to compare the changes of muscle mass and muscle strength before and after ten weeks of exercise intervention.Re-sults:1)The cross-sectional area and muscle thickness of tibialis anterior in KT group were sig-nificantly increased(P＜0.05),and there were significant differences between the two groups(P＜0.05).2)Calf circumference of KT group increased significantly(P＜0.05),and there was a significant difference between the two groups(P＜0.05).3)Lower limb muscle mass of KT group was significantly increased(P＜0.05),and the difference was significant compared with C group(P＜0.05),and the muscle mass index was also significantly different from C group(P＜0.05).4)The relative peak torque of plantar flexion in ST group was significantly higher than that in C group(P＜0.05).In KT group,the peak torque and relative peak torque of dorsum flexion increased significantly(P＜0.05),and there was a significant difference between groups(P＜0.05).The peak torque and relative peak torque of plantar flexion increased significantly(P＜0.01),and there was also a significant difference between groups(P＜0.01).5)Gastrocne-mius muscle strength in ST group was significantly increased(P＜0.05)and there was a significant difference compared with C group(P＜0.05),and the muscle strength of gastrocnemius in KT group increased significantly(P＜0.01),and there was a significant difference with C group and KT group(P＜0.01).6)In KT group,the muscle strength of quadriceps femoris and tibialis anterior increased significantly(P＜0.05),and there was a significant difference with C group and ST group(P＜0.05).7)In KT group,the number of sitting-ups within 30 s increased significantly(P＜0.01),and there was also a significant difference between groups(P＜0.01).Conclusions:1)Single lower extremity muscle strength exercise can significantly enhance the gastrocnemius muscle strength,lower extremity compression muscle strength exercise has a significant effect on increasing tibialis anterior mass and total muscle mass of lower limbs,and improving lower limb muscle strength except posterior thigh muscles.2)Compared with single lower limb mus-cle strength exercise,lower extremity compression muscle strength has a more significant gain effect on gastrocnemius muscle strength in elderly patients with sarcopenia.
elder peoplesarcopeniamuscle strength exerciseKAATSU training
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