Is 20 Hz Whole-Body Vibration Training Better for Older Individuals than 40 Hz?

Shiuan-Yu Tseng, Chung-Po Ko, Chin-Yen Tseng, Wei-Ching Huang, Chung-Liang Lai and Chun-Hou Wang
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Shiuan-Yu Tseng: Graduate Institute of Service Industries and Management, Minghsin University of Science and Technology, Hsinchu 30401, Taiwan
Chung-Po Ko: Department of Neurosurgery, Tungs’ Taichung MetroHarbor Hospital, Taichung 43503, Taiwan
Chin-Yen Tseng: Department of Physical Therapy, Upright Come Scoliosis Clinic, Hsinchu 30286, Taiwan
Wei-Ching Huang: Department of Physical Medicine and Rehabilitation, Taichung Hospital, Ministry of Health and Welfare, Taichung 40343, Taiwan
Chung-Liang Lai: Department of Occupational Therapy, College of Medical and Health Science, Asia University, Taichung 41354, Taiwan
Chun-Hou Wang: Department of Physical Therapy, Chung Shan Medical University, Taichung 40201, Taiwan

IJERPH, 2021, vol. 18, issue 22, 1-9

Abstract: In recent years, whole-body vibration (WBV) training has been used as a training method in health promotion. This study attempted to use WBV at three different frequencies (20, 30, and 40 Hz) with subjects from different age groups to analyze the activation of the rectus femoris muscle. The subjects included 47 females and 51 males with an average age of 45.1 ± 15.2 years. Results indicated significant differences in subjects from different age groups at 20 Hz WBV. Muscle contraction was greater in the subjects who were older (F (4,93) = 82.448, p < 0.001). However, at 30 Hz WBV, the difference was not significant (F (4,93) = 2.373, p = 0.058). At 40 Hz WBV, muscle contraction was less in the older subjects than in the younger subjects (F (4,93) = 18.025, p < 0.001). The spectrum analysis also indicated that at 40 Hz there was less muscle activity during WBV in the older subjects than in the younger ones. Therefore, age was found to have a significant effect on muscle activation during WBV at different frequencies. If the training is offered to elderly subjects, their neuromuscular responses to 20 Hz WBV will be more suitable than to 40 Hz WBV.

Keywords: exercise; age groups; electromyography; rectus femoris (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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