Regterschot, G.R.H. (2010) The acute effects of passive WBS on cognition and physiological parameters in healthy young adults. thesis, Human Movement Sciences.
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Abstract
Background Immobile elderly cannot fully benefit from the positive effects of exercise on cognition and fitness. Passive Whole Body Stimulation (WBS) may be an alternative. The main goals were to investigate the acute effects of passive WBS using a vibrating chair on oxygen uptake, heart rate and executive functioning and to identify the optimal frequency and amplitude of the vibrations. Also comfort of the vibrating chair was investigated. Methods Subjects were 12 healthy young adults ( 4 females, 8 males; age: 22.8± 1.5 yrs ). The design was a balanced, randomized, placebo controlled cross-over design with 10 WBS conditions (frequency 20 Hz, 30 Hz, 40 Hz, 50 Hz, 60 Hz x amplitude 2 mm and 4 mm) and 1 placebo condition. Oxygen uptake, heart rate, performance on the color-word condition of the Stroop test and perceived comfort were measured. Results Passive WBS leaded to a significant increase in oxygen uptake (16.4%), heart rate (8%) and Stroop test perfonnance (4.8%). Oxygen uptake increased most in the 20 Hz/4 mm (22.2%) and 60 Hz/4 mm (21.9%) condition. Heart rate increased most (10.0%) in the 60 Hz/4 mm condition. The 30 Hz/4 mm condition leaded to the greatest increase (8%) in Stroop test performance. Passive WBS was less comfortable than sitting on the vibrating chair without WBS. 60 Hz and high amplitude were most unpleasant, 30Hz, 40Hz and low amplitude were most pleasant. Conclusion It can be concluded that passive WBS can increase oxygen uptake, heart rate and Stroop test performance. For stimulating oxygen uptake 20 Hz/4 mm was optimal, for heart rate 60 Hz/4 mm and for executive functioning 30 Hz/4 mm. Passive WBS was less comfortable than sitting on the vibrating chair without WBS. Oxygen uptake and heart rate values elicited by passive WBS are probably too low for a training effect in elderly. Therefore, passive WBS can probably not stimulate aerobic fitness in immobile elderly, but it may stimulate cognitive functioning in this group.
| Item Type: | Thesis (Thesis) |
|---|---|
| Supervisor name: | Zee, prof. dr. E.A. van der and Molecular Neurobiology and Heuvelen, dr. M.J.G. van and Human Movement Sciences |
| Faculty: | Medical Sciences |
| Date Deposited: | 25 Jun 2020 11:01 |
| Last Modified: | 25 Jun 2020 11:01 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/2170 |
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