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Mediator Effect of Balance Problems on Association Between Grip Strength and Falls in Older Adults: Results From the KORA-Age Study
oleh: Marjan Arvandi MSc, Barbara Strasser ScDD, Konstantinos Volaklis PhD, Karl-Heinz Ladwig PhD, Eva Grill PhD, Raffaella Matteucci Gothe MSc, Alexander Horsch PhD, Michael Laxy PhD, Uwe Siebert MD, Annette Peters PhD, Barbara Thorand PhD, Christa Meisinger MD
| Format: | Article |
|---|---|
| Diterbitkan: | SAGE Publishing 2018-03-01 |
Deskripsi
Objective: To examine the association between grip strength and history of falls among older individuals, and to assess the possible mediating effect of balance problems on this relationship. Method: Data originate from KORA (Cooperative Health Research in the Region of Augsburg)-Age Study of 808 individuals (65 years and above). Follow-up assessment occurred 3 years later. Results: The risk of falls within the last 12 months was reduced on average by 3% (odds ratio [OR] 95% confidence interval [95% CI] = 0.97 [0.94, 0.99]; p value = .026) per 1-kg increase in maximum grip strength after adjusting for age and gender. There was a trend toward an indirect effect of grip strength through the mediator variable balance problems ( p value = .043). Discussion: Increased muscular strength is associated with a reduced risk of falls in older age after adjustment for age and gender. The association is partially mediated by balance problems. Thus, in older adults, muscle-strengthening exercises may decrease the risk of falling.