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| Study on the correlation and influencing factors of manual function in elderly people |
| HOU Xue1 WEN Xiaoni2 |
1.Department of Graduate, Xi’an Physical Education University, Shaanxi Province, Xi’an 710068, China;
2.Department of Sports Medicine, College of Sports and Health Sciences, Xi’an Physical Education University, Shaanxi Province, Xi’an 710068, China |
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Abstract Objective To explore the correlation and influencing factors of elderly people’s hand function. Methods A total of 100 elderly residents of Yijun County, Tongchuan City, Shaanxi Province meeting the inclusion criteria from June to Sep- tember 2022 were selected by simple random sampling method. The participants were tested for grip strength, hand flexibility (box and block test [BBT test]), coordination ability, functional extension, timed stand up, and walk, static balance, 30 s sitting and standing, 6 min walking distance, shoulder joint flexibility, lumbar motion and other functional tasks. After excluding invalid data, the test data of 88 elderly people were finally included in this study. Then the correlation and influencing factors were analyzed and studied. Results The BBT values of the left hand and the right hand were (38±8) number/min and (39±8) number/min respectively. The grip strength of the dominant hand was (166.8±75.0) N. The correlation results showed that BBT left hand test was positively correlated with BBT right hand test, grip strength, Schober test, 30 s sitting and standing test, functional extension test, right back scratching test, left back scratching test, static balance and coordination function, and was negatively correlated with age and timing standing and walking test (P＜0.05). BBT right hand test was positively correlated with grip strength, Schober test, 30 s sitting and standing test, functional extension test, right back scratching test, left back scratching test, static balance and coordination function, but was negatively correlated with age and timing standing and walking test (P＜0.05). Grip strength was positively correlated with 6 min walking test, Schober test, 30 s sitting and standing test, functional stretching test, static balance and coordination function, and was negatively correlated with timed standing and walking test (P＜0.05). 6min walking test, timed standing up and walking test, and functional stretching test were all influencing factors of grip strength, among which the test value of timed standing up and walking test has the greatest influence on grip strength (B=-14.916, P=0.030). The regression equation was as follows: grip strength =73.31+0.26×6 min walking test -14.91× timed stand up and walk test +3.61× functional stretching test. Factors affecting hand flexibility included 30 s sitting and standing test, functional extension test, and Schober test, among which Schober test value (B=1.140, P=0.029) had the greatest influence on hand flexibility. Regression equation: hand flexibility =2.58+0.70×30 s sitting and standing +0.25× functional stretching test +1.14×Schober test. Conclusion The manual flexibility and grip strength of the elderly are correlated with functional tasks that reflect postural control, such as standing up and walking, sitting and standing for 30 s, functional extension, static balance, coordination and lumbar motion, among which functional extension test is a common factor affecting grip strength and hand flexibility. It is speculated that hand function assessment may be one of the important methods to indirectly reflect functional extension test.
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