Force-velocity relationship of leg muscles assessed with motorized treadmill tests: two-velocity method
| Author(s) | Dobrijevic, Slobodanka | |
| Author(s) | Ilic, Vladimir | |
| Author(s) | Djuric, Sasa | |
| Author(s) | Jaric, Slobodan | |
| Ordered Author | Slobodanka Dobrijevic, Vladimir Ilic, Sasa Djuric, & Slobodan Jaric | |
| UD Author | Jaric, Slobodan | en_US |
| Date Accessioned | 2017-09-12T13:30:41Z | |
| Date Available | 2017-09-12T13:30:41Z | |
| Copyright Date | Copyright © 2017 Elsevier B.V. | en_US |
| Publication Date | 2017-05-04 | |
| Description | Author's manuscript | en_US |
| Abstract | Linear regression models applied on force (F) and velocity (V) data obtained from loaded multi-joint functional movement tasks have often been used to assess mechanical capacities of the tested muscles. The present study aimed to explore the properties of the F-V relationship of leg muscles exerting the maximum pulling F at a wide range of V on a standard motorized treadmill. Young and physically active male and female subjects (N=13+15) were tested on their maximum pulling F exerted horizontally while walking or running on a treadmill set to 8 different velocities (1.4-3.3 m/s). Both the individual (median R=0.935) and averaged across the subjects F-V relationships (R=0.994) proved to be approximately linear and exceptionally strong, while their parameters depicting the leg muscle capacities for producing maximum F, V, and power (P; proportional to the product of F and V) were highly reliable (0.84<ICC<0.97). In addition, the same F-V relationship parameters obtained from only the highest and lowest treadmill V (i.e., the 'two-velocity method') revealed a strong relationship (0.89<R<0.99), and there were no meaningful differences regarding the magnitudes of the same parameters obtained from all 8 V’s of the treadmill. We conclude that the F-V relationship of leg muscles tested through a wide range of treadmill V could be strong, linear, and reliable. Moreover, the relatively quick and fatigue-free twovelocity method could provide reliable and ecologically valid indices of F, V, and P producing capacities of leg muscles and, therefore, should be considered for future routine testing. | en_US |
| Department | University of Delaware. Department of Kinesiology. | en_US |
| Citation | Dobrijevic, S., Ilic, V., Djuric, S., & Jaric, S. (2017). Force-velocity relationship of leg muscles assessed with motorized treadmill tests: Twovelocity method. Gait & Posture, 56, 60-64. http://dx.doi.org/10.1016/j.gaitpost.2017.04.033 | en_US |
| DOI | 10.1016/j.gaitpost.2017.04.033 | en_US |
| ISSN | 0966-6362 ; e- 1879-2219 | en_US |
| URL | http://udspace.udel.edu/handle/19716/21637 | |
| Language | en_US | en_US |
| Publisher | Elsevier | en_US |
| dc.rights | This article is made available in accordance with the University of Delaware Faculty Policy on Open Access (4.2.15) and the publisher's policy. | en_US |
| dc.source | Gait & Posture | en_US |
| dc.source.uri | https://www.journals.elsevier.com/gait-and-posture/ | en_US |
| Title | Force-velocity relationship of leg muscles assessed with motorized treadmill tests: two-velocity method | en_US |
| Type | Article | en_US |