Comparing passive angle-torque curves recorded simultaneously with a load cell versus an isokinetic dynamometer during dorsiflexion stretch tolerance assessments

Medical Engineering & Physics
Samuel L BucknerJoel T Cramer

Abstract

The purpose of the present study was to compare the passive angle-torque curves and the passive stiffness (PS, N m °(-)(1)) values recorded simultaneously from a load cell versus an isokinetic dynamometer during dorsiflexion stretch tolerance assessments in vivo. Nine healthy men (mean ± SD age = 21.4 ± 1.6 years) completed stretch tolerance assessments on a custom-built apparatus where passive torque was measured simultaneously from an isokinetic dynamometer and a load cell. Passive torque values that corresponded with the last 10° of dorsiflexion, verified by surface electromyographic amplitude, were analyzed for each device (θ1, θ2, θ3, …, θ10). Passive torque values measured with the load cell were greater (p ≤ 0.05) than the dynamometer torque values for θ4 through θ10. There were more statistical differentiations among joint angles for passive torque measured by the load cell, and the load cell measured a greater (p ≤ 0.01) increase in passive torque and PS than the isokinetic dynamometer. These findings suggested that when examining the angle-torque curves from passive dorsiflexion stretch tolerance tests, a load cell placed under the distal end of the foot may be more sensitive than the torque recorded from an isokineti...Continue Reading

References

Nov 15, 1996·The Journal of Physiology·S P MagnussonM Kjaer
Aug 28, 1998·International Journal of Sports Medicine·S P MagnussonF Bojsen-Møller
Sep 19, 2001·European Journal of Applied Physiology·K KuboT Fukunaga
Dec 18, 2007·Medical Engineering & Physics·A NordezC Cornu
Jul 25, 2009·Journal of Sports Sciences·Eric D RyanJoel T Cramer
Aug 27, 2010·Scandinavian Journal of Medicine & Science in Sports·M P McHughR H Morrison
Oct 5, 2010·Journal of Strength and Conditioning Research·Katherine M HogeJoel T Cramer
Mar 3, 2011·Medicine and Science in Sports and Exercise·Trent J HerdaJoel T Cramer
Dec 2, 2011·European Journal of Applied Physiology·Alexandre FouréChristophe Cornu
Jun 20, 2014·Scandinavian Journal of Medicine & Science in Sports·R J AndradeP Pezarat-Correia

❮ Previous
Next ❯

Citations

Feb 7, 2020·Journal of Sport Rehabilitation·Matheus Lima OliveiraAlexandre Carvalho Barbosa

❮ Previous
Next ❯

Related Concepts

Related Feeds

Birth Defects

Birth defects encompass structural and functional alterations that occur during embryonic or fetal development and are present since birth. The cause may be genetic, environmental or unknown and can result in physical and/or mental impairment. Here is the latest research on birth defects.