Effects Of O2O Multi-model Training On Depression, Aerobic Fitness And Lower Limb Strength In Older

PURPOSE: Chronic somatic disease is the main cause of depression in the older, and depression and muscular dystrophy are risk factors for frailty in the older. Multi-model training (MMT) could improve the physical and mental health of the older extensively, especially in physical function, cognitive ability, quality of life and preventing falls. However, the overall effect of MMT on depression, aerobic fitness and lower limb strength in the older are unclear. To explore the effect of 12 weeks online and offline MMT on depression, aerobic fitness and lower limb strength in the older. METHODS: 82 subjects were recruited through communities and network propagandas, after qualification assessments, finally 60 subjects participated in the experiment, the average age was 67.34 ± 6.16. All subjects were randomly divided into the Control Group (CG) and the Intervention Group (IG). The depression symptoms, aerobic fitness and lower limb strength were evaluated by the Geriatric Depression Scale-15 (GDS -15), the Six-Minute Walk Test (SMWT), the 30-Second Sit-Stand Test (30SSST) before and after the experiment. IG no only participated in the off-line exercise intervention which consisted of aerobic exercise, resistance training and yoga 3 times a week and 60-70 minutes a time, but also got the on-line feedback guidance and exercise reminder by WECHAT; CG maintained their original life style and did not accept any intervention. MMT comparisons were made using two-way ANOVA with repeated measures. Results: GDS -15 increased very significantly in CG (7.15 ± 1.93 vs. 8.08 ± 2.28, p > 0.01), but stayed the same in IG (6.59 ± 1.60 vs. 6.59 ± 1.34, p > 0.05). There was no significant difference in GDS -15 between two groups before the experiment (p > 0.05), but after the experiment GDS -15 in IG was significantly lower than that in CG (p < 0.01). SMWT and 30SSST increased significantly in IG (585.19 ± 62.03 vs 646.44 ± 67.83; 17.56 ± 4.21 vs. 21.22 ± 4.23, p < 0.01), but did not change significantly in CG (543.85 ± 46.9 vs. 533.62 ± 49.76; 14.04 ± 3.03 vs. 13.81 ± 3.10, p > 0.05), before and after the experiment SMWT and 30SSST in IG were both significantly higher than in CG. CONCLUSION: In the post-epidemic era, O2O MTM can buffer the aggravation of depression and improve the aerobic fitness and lower limb strength in the older. The Wuhan University of Technology Innovation Research Fund:201441002