TY  - JOUR
PY  - 2014//
TI  - The effects of strength and power training on single-step balance recovery in older adults: a preliminary study
JO  - Clinical interventions in aging
A1  - Pamukoff, Derek N.
A1  - Haakonssen, Eric C.
A1  - Zaccaria, Joseph A.
A1  - Madigan, Michael L.
A1  - Miller, Michael E.
A1  - Marsh, Anthony P.
SP  - 697
EP  - 704
VL  - 9
IS  - 
N2  - Improving muscle strength and power may mitigate the effects of sarcopenia, but it is unknown if this improves an older adult's ability to recover from a large postural perturbation. Forward tripping is prevalent in older adults and lateral falls are important due to risk of hip fracture. We used a forward and a lateral single-step balance recovery task to examine the effects of strength training (ST) or power (PT) training on single-step balance recovery in older adults. Twenty older adults (70.8±4.4 years, eleven male) were randomly assigned to either a 6-week (three times/week) lower extremity ST or PT intervention. Maximum forward (FLeanmax) and lateral (LLeanmax) lean angle and strength and power in knee extension and leg press were assessed at baseline and follow-up. Fifteen participants completed the study (ST =7, PT =8). Least squares means (95% CI) for ΔFLeanmax (ST: +4.1° [0.7, 7.5]; PT: +0.6° [-2.5, 3.8]) and ΔLLeanmax (ST: +2.2° [0.4, 4.1]; PT: +2.6° [0.9, 4.4]) indicated no differences between groups following training. In exploratory post hoc analyses collapsed by group, ΔFLeanmax was +2.4° (0.1, 4.7) and ΔLLeanmax was +2.4° (1.2, 3.6). These improvements on the balance recovery tasks ranged from ~15%-30%. The results of this preliminary study suggest that resistance training may improve balance recovery performance, and that, in this small sample, PT did not lead to larger improvements in single-step balance recovery compared to ST.<p />  <p>Language: en</p>
LA  - en
SN  - 1176-9092
UR  - http://dx.doi.org/10.2147/CIA.S59310
ID  - ref1
ER  -