Stepping Task Requiring Memory and Mimic and Cognitive Function

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  • 記憶と再生を要するステッピング課題と認知機能との関連性
  • キオク ト サイセイ オ ヨウスル ステッピング カダイ ト ニンチ キノウ ト ノ カンレンセイ

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Screening older adults with mild cognitive impairment (MCI) is significant because MCI is often considered to be a transition stage between normal cognition and dementia. Some screening methods have been developed; however, these methods require a lot of human resources and time. Square-Stepping Exercise (SSE) is a novel form of exercise, which requires both attention and memory (i.e., watching, remembering, and then executing stepping patterns) and could improve cognitive function in older adults. The purpose of this study was to test relationships between stepping task performance and cognitive function. In total, 170 community-dwelling adults aged 65 years or older participated. If participants scored less than 26 on the Montreal Cognitive Assessment, they were considered to have probable MCI. Ten different SSE patterns were selected based on previous experiences and examined whether or not participants could correctly execute the stepping patterns. 43 (25%) in the 170 participants were defined as having MCI. Reliability in each pattern was significantly high. There were significant differences in the success ratios in three SSE patterns between MCI and non-MCI participants. The patterns also showed significant differences in sex and the number of trials. In conclusion, the SSE patterns may discriminate among older adults with and without MCI. Future research should develop a screening method for MCI, including information on the SSE patterns, sex, and a trial number.

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