Skip to main content
Kent Academic Repository

Power absorbed by the standing human body during whole-body vibration training

Nawayseh, Naser, Hamdan, Sadeque (2020) Power absorbed by the standing human body during whole-body vibration training. Journal of Biomechanical Engineering, 142 (7). Article Number 074501. ISSN 0148-0731. E-ISSN 1528-8951. (doi:10.1115/1.4045809) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:90713)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL:
http://dx.doi.org/10.1115/1.4045809

Abstract

Absorbed power (AP) is a biodynamic response that is directly related to the magnitude and duration of vibration. No work has previously investigated the power absorbed by the standing human body during the exposure to vibration training conditions or otherwise. This article reports the power absorbed by the standing human body under whole-body vibration (WBV) training conditions. In this work, the force and acceleration used to calculate the apparent mass by Nawayseh and Hamdan (2019, "Apparent Mass of the Standing Human Body When Using a Whole-Body Vibration Training Machine: Effect of Knee Angle and Input Frequency," J. Biomech., 82, pp. 291-298) were reanalyzed to obtain the AP. The reported acceleration was integrated to obtain the velocity needed to calculate the AP. The effects of bending the knees (knee angles of 180 deg, 165 deg, 150 deg, and 135 deg) and vibration frequency (17-42 Hz) on the power absorbed by 12 standing subjects were investigated. Due to the different vibration magnitudes at different frequencies, the AP was normalized by dividing it by the power spectral density (PSD) of the input acceleration to obtain the normalized AP (NAP). The results showed a dependency of the data on the input frequency as well as the knee angle. A peak in the data was observed between 20 and 24 Hz. Below and above the peak, the AP and NAP tend to increase with more bending of the knees indicating an increase in the damping of the system. This may indicate the need for an optimal knee angle during WBV training to prevent possible injuries especially with prolonged exposure to vibration at high vibration intensities. © 2020 Wolters Kluwer Medknow Publications. All rights reserved.

Item Type: Article
DOI/Identification number: 10.1115/1.4045809
Uncontrolled keywords: Spectral density, Biodynamic response; Different frequency; High vibration intensities; Power spectral densities (PSD); Training conditions; Vibration frequency; Vibration magnitude; Whole body vibration, Vibrations (mechanical), absorbed power; acceleration; adult; Article; body position; human; knee; male; standing; whole body vibration training
Subjects: H Social Sciences
Divisions: Divisions > Kent Business School - Division > Department of Analytics, Operations and Systems
Depositing User: Sadeque Hamdan
Date Deposited: 09 Nov 2021 15:17 UTC
Last Modified: 04 Mar 2024 18:25 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/90713 (The current URI for this page, for reference purposes)

University of Kent Author Information

  • Depositors only (login required):

Total unique views for this document in KAR since July 2020. For more details click on the image.