Abstract
Time Lag Between Perceived Decreased Confidence and Actual Physical Function Following 16 Weeks Vibration Training in Frail Elderly
Sport and Exercise Science New Zealand Annual Conference Book of Abstracts, pp.35-35
Sport and Exercise Science New Zealand (SESNZ) Annual Conference: Changing Perspectives on Active Health and Human Performance, 2016 (Cambridge, New Zealand, 28-Oct-2016 - 29-Oct-2016)
2016
Abstract
Background: Vibration exercise has shown to elicit gains in lower-limb strength in frail elderly, who cannot exercise conventionally. These gains can manifest as improved physical function, confidence and quality of life (QoL). However, it is unknown how long effects last after vibration exercise training ceases.
Aim: Investigate the time line of detraining from whole body vibration (WBV) exercise in frail elderly.
Methods: An RCT 16-week intervention with 1-year follow-up tracking the detraining profile. Rest-home residents (70+ years) were assigned to a WBV-exercise group (WBV), a simulatedWBV-exercise group (SIM), or a control group (CON). WBV- and SIM-participants exercised thrice-weekly (20-min, 1:1 exercise:rest ratio), whilst CON-participants received only normal care. WBV-exercise started with 5∗1-minute at 6 Hz/2mm amplitude, progressing to 10∗1-minute when Hz/amplitude were increased ad libitum. Approximately 20° knee flexion was maintained during exercise for WBV (dampening effect) and SIM participants. Variables were measured at baseline, 8-weeks and 16-weeks of intervention, and 3-, 6- and 12-months post-intervention. Functionality and balance were assessed using the Timed Up-and-Go and Parallel Walk tests, complemented by the Barthel Index Questionnaire. Lower-limb strength was inferred using the 10-metre timed walk. The Activities-specific Balance Confidence scale measured falls-related confidence, and the EuroQol EQ-5D-3L health questionnaire assessed participant’s QoL.
Results: Preliminary results reveal WBV increased physical function, lower-limb strength and balance during and at least 3-months post-intervention, while falls-related confidence and QoL increased during and at least 6-months post-intervention. The control group declined in all measures, as did the simulated-WBV group except for QoL, which may be indicative of the psychological impact of study participation.
Conclusions: Upon completing the 16-week training, all benefits were lost after 6 months. However, the psychological benefits of WBV exercise appeared to last longer than physical ones, leading to a mismatch between confidence and physical ability. This could potentially increase falls risk if not managed correctly.
Details
- Title
- Time Lag Between Perceived Decreased Confidence and Actual Physical Function Following 16 Weeks Vibration Training in Frail Elderly
- Authors
- Sally Lark (Author) - Massey UniversityDaniel Wadsworth (Author) - University of the Sunshine Coast, QueenslandJane Coad (Author) - Massey UniversityJanet Turnbull (Author)
- Publication details
- Sport and Exercise Science New Zealand Annual Conference Book of Abstracts, pp.35-35
- Conference details
- Sport and Exercise Science New Zealand (SESNZ) Annual Conference: Changing Perspectives on Active Health and Human Performance, 2016 (Cambridge, New Zealand, 28-Oct-2016 - 29-Oct-2016)
- Publisher
- Sport and Exercise Science New Zealand
- Organisation Unit
- School of Nursing, Midwifery and Paramedicine - Legacy; University of the Sunshine Coast, Queensland; School of Health - Nursing
- Language
- English
- Record Identifier
- 99620608402621
- Output Type
- Abstract
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