Park Wonil, Kim Bokbeom, Lee Jaesung, Hong Gyuseog, Park Jonghoon
Exercise Nutrition and Biochemistry Laboratory, Department of Physical Education, Korea University, Seoul, Republic of Korea.
Industry Academic Cooperation Foundation, Chung-Ang University, Seoul, Republic of Korea.
Phys Act Nutr. 2022 Mar;26(1):14-19. doi: 10.20463/pan.2022.0003. Epub 2022 Mar 31.
This study aimed to compare the physiological tremor, grip strength, and cognitive function of sedentary and physically active older adults.
Twenty-four older adults aged ≥65 years participated in this study and were divided into the sedentary (76.5±4.4 years, n=12) and physically active (73.5±3.3 years, n=12) groups. Each group completed the Mini-Mental State Examination (MMSE) for cognitive function assessment. Physiological tremor was measured using an accelerometer for both hands at rest and the left/right hand with a 1,000 g dumbbell on the palm in neutral positions and the elbow flexed at 90°. Physical fitness was measured by grip strength and completion of the Short Physical Performance Battery (SPPB) and the 6-min walk test.
The physically active group showed a significantly lower level of physiological tremor in both hands at rest and the left/right hand with a 1,000 g dumbbell on the palm (P<0.05) than that in the sedentary group. For cognitive function, the physically active group showed significantly higher scores than those in the sedentary group (P<0.001). No significant correlation was found between cognitive function and left/right grip strength (left: r = 0.117, P = 0.585; right: r = 0.230, P = 0.279), physiological tremor in both hands at rest (left: r = -0.524, P < 0.001; right: r = -0.508, P < 0.05), and the left/right hand with a 1,000 g dumbbell on the palm (left: r = -0.505, P < 0.05; right: r = -0.458, P < 0.05).
Physiological tremor of the hands has the potential to be a useful predictor of cognitive function in older adults.
本研究旨在比较久坐不动和积极运动的老年人的生理性震颤、握力和认知功能。
24名年龄≥65岁的老年人参与了本研究，被分为久坐组（76.5±4.4岁，n = 12）和积极运动组（73.5±3.3岁，n = 12）。每组都完成了简易精神状态检查表（MMSE）以进行认知功能评估。使用加速度计测量双手在休息时以及手掌中握有1000克哑铃、肘部弯曲90°处于中立位置时左手/右手的生理性震颤。通过握力以及完成简短体能状况量表（SPPB）和6分钟步行测试来测量身体素质。
积极运动组在双手休息时以及手掌中握有1000克哑铃时左手/右手的生理性震颤水平显著低于久坐组（P < 0.05）。对于认知功能，积极运动组的得分显著高于久坐组（P < 0.001）。未发现认知功能与左手/右手握力（左手：r = 0.117，P = 0.585；右手：r = 0.230，P = 0.279）、双手休息时的生理性震颤（左手：r = –0.524，P < 0.001；右手：r = –0.508，P < 0.05）以及手掌中握有1000克哑铃时的左手/右手（左手：r = –0.505，P < 0.05；右手：r = –0.458，P < 0.05）之间存在显著相关性。
手部的生理性震颤有可能成为老年人认知功能的有用预测指标。
