Relationship Between Hand Grip Strength, Cognition, And Hand Dexterity In Older Adults: A Pilot Study
Indian Journal of Physiotherapy and Occupational Therapy
and Objective: In older adults most important two factor is cognition and hand motor functions, most noticeable in requiring much skill in fine motor activities. The normal process of aging involves declines in cognitive and sensorimotor functions that affect performance of activities of daily living. Dexterity measures help to detects early decline of hand function and it is necessary to quantify manual dexterity of older adults not only design for work but also for the product and system
... activities by older adults. Force control is necessary for grip because most daily object required acquired force for movement not maximum force. While using large grip forces can lead to changes in the aging neuromotor system other than impaired tactile afferent functioning. Some older adults may produce less stable isometric forces with hand and arm muscles because of peripheral reorganization of their muscles. There is greater connection between hand grip strength and cognition, the deterioration of cognitive function is a high risk of AD. Therefore, handgrip strength considers as an early marker of cognitive decline and incident dementia. Objective is to find relationship between hand grip strength, cognition, and hand dexterity in older adults. Methodology: 16 subjects were recruited on the basis of selection criteria. Subjects evaluated cognition, grip strength, and hand dexterity using outcome measures are MoCA, hand held dynamometer, and 9-hole peg test respectively. Results: Karl Pearson correlation were used for the statistical analysis. The result showed that moderate correlation between cognition and grip strength for right and left side with p value 0.031 and r value 0.540, and p = 0.40 and r = 0.517 respectively and weak correlation between cognition and hand dexterity for both right and left with p value 0.162 and r = -.367 and p = .180, r= -.353 respectively. Conclusion: the study shows moderate association between cognition and grip strength and weak correlation between cognition and hand dexterity for both right and left side.