EFFECT OF COMPREHENSIVE STRENGTH TRAINING INTERVENTION ON MIDDLE-AGED AND ELDERLY MCI PATIENTS OF MIAO NATIONALITY AND ITS MECHANISM

Liu Fengbin^*

School of Physical Education, Dalian University, Dalian, 116622, China

Objective: To explore the intervention effect of comprehensive strength training on middle-aged and elderly MCI patients of Miao nationality and its possible mechanism of action. 

Methods: Forty middle-aged and elderly MCI patients (56±4 years old, 65±3 years old) were selected from Miao ethnic group, who were randomly divided into control group and intervention group. The control group received routine health education. The intervention group received exercise intervention of comprehensive strength training for 6 months. The subjects’ changes in indicators like cognitive function, biochemistry, strength were tested. 

Results: After 6 months’ exercise intervention, compared with the control group, the intervention group had increased MoCA score, showing a significant increase in T6 period (P<0.05). Compared with the control group, the intervention group had increased HDL-C content, but decreased TG, TC, and LDL-C contents. TG content showed a significant decrease at T6 period (P<0.05). Compared with the control group, the intervention group had significantly increased average electromyogram amplitude in rectus abdominis at T6 period (P<0.05), but latissimus dorsi showed an increasing trend without statistical difference (P>0.05). 

Conclusion: 6 months’ comprehensive strength training can effectively improve cognitive function of middle-aged and elderly MCI patients of Miao nationality; improve blood lipid levels, especially in the middle-aged group; help improve core muscle strength to some extent. In particular, rectus abdominis had the most obviously increased average electromyogram amplitude, which was especially true in the middle-aged group.