| Summary: | 碩士 === 國立成功大學 === 體育健康與休閒研究所 === 105 === Purpose: To examine the effects on cognitive ability, reaction ability, and functional fitness after 12 weeks of two different types of exercise intervention in community-dwelling elderly adults with mild cognitive impairment.
Methods: Seventy-two participants aged over 60 years old were classified as having probable mild cognitive impairment (MCI) using the Saint Louis University Mental Status (SLUMS) examination. Participants were assigned to three groups (CG, n=22, 74.58±5.78 years; RTG, n=24, 72.00±7.15 years; MEG, n=26, 72.77±5.65 years). The exercise groups performed twice-weekly resistance training or multicomponent exercise training for 1.5 hours led by certified fitness instructors, and the control groups attended twice-weekly tablet computers course for 12 weeks. The primary outcome measure were the simple reaction time and simple movement time, as measured by the Vienna-test system (VTS), the total body reaction time was measured with both feet on a measuring instrument (HELMAS NH-3000I), while functional fitness was measured with The Senior Functional Fitness Test (SFFT).
Results: O the 72 participants, a total of 53 completed the 12-week trial after the training period (18 in the MEG group, 18 in the RT group, 17 in the CG group). There were no significant changes in body composition between the groups at both pre- andpost-study periods. Although both MEG and RTG increased their SLUMS scores, there was no significant difference in cognitive ability (MEG:+6.7%; RTG:+12.45%; CG:-0.76%) after 12 weeks .The total body reaction time for the MEG (-21.93%) and RTG (-9.04%) decreased significantly compared to the that seen for the CG (+1.13%)(p 〈.05), and the simple movement time for the MEG (-7.41%) and RTG (-0.81%) decreased significantly compared to the CG (+27.58% )(p 〈.05). RTG (+18.48%) saw a significant increase in upper limb strength compared to MEG (+6.58%) and CG (-4.74%). With regard to lower limb strength and grip, RTG and MEG saw significant increases compared to CG (p 〈.05). Both MET (-13.82%) and RTG (-10.47%) improved more significantly than CG (+7.58%) in the 8-foot-up-and-go (p 〈.05), and one leg standing tests (right side: RTG: +13.51%; MEG: +151.74%; CG: -21.40%; left side: RTG: +54.30%; MEG: +169.39%; CG: +7.86%) (p 〈.05).
Conclusion: These findings indicate that participating in a multicomponent exercise and resistance exercise program to promote health can improve the reaction time, muscle strength, agility and dynamic balance in community-based elderly subjects with cognitive impairment. These findings suggest that short, twice-weekly MET and RTG are promising and effective community-based health promotion activities for elderly people with mild cognitive impairment.
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