Isokinetic trunk flexors and extensors performance with and without gravity correction

Article type: Research Article

Authors: Vanhée, J.L.^{a; *} | Voisin, Ph.^a | Vezirian, Th.^b | Vanvelcenaher, J.^a

Affiliations: [a] CRF L'Espoir. 25, Pavé du Moulin, 59260 Lille-Hellemmes, France | [b] 5 bis, rue de Trévise, 59000 Lille, France

Note: [*] Corresponding author. Fax: + 33 20059316.

Abstract: We study the influence of the calculation of the trunk gravity correction, in standing position, on the isokinetic trunk flexors and extensors performance of a healthy population. Thirty men and 30 women are subjected to two tests, one with gravity correction, the other without, at angular speeds of 30°/s and 120°/s. In all cases, the results with gravity correction show: a significant decrease of Peak Torque (PT) and Power (P) recorded on the trunk flexors and a significant increase of Peak Torque and Power recorded on the trunk extensors. Thus, the flexors/extensors ratios (50%) of both parameters are quite different from the ratios usually referred to in the literature (70%).

Keywords: Trunk flexion/extension ratios, Isokinetics, Gravity correction

DOI: 10.3233/IES-1996-6203

Journal: Isokinetics and Exercise Science, vol. 6, no. 2, pp. 89-94, 1996