Title page for ETD etd-72198-143523

Type of Document Master's Thesis
Author Call, Michael H. IV
URN etd-72198-143523
Title The Effects of Wearing Prophylatic Knee Sleeves/Braces on Selected Isokinetic Measures During a Velocity Spectrum Knee Extension Test
Degree Master of Science
Department Teaching and Learning
Advisory Committee
Advisor Name Title
Burton, John K. Committee Chair
Cross, Lawrence H. Committee Member
Gentry, R. Mike Committee Member
Lagan, H. Duane Committee Member
Wood, Fred Committee Member
  • efficacy
  • peak torque
  • knee brace
Date of Defense 1998-07-13
Availability unrestricted
Twenty Virginia Tech varsity football players, age 18-24, volunteered as subjects to examine the effects of wearing prophylatic knee sleeves/ braces on selected isokinetic measures (i.e. strength, power and endurance). Each subject performed the Biodex (Multi-Joint System 2AP) knee extension test in each of three experimental conditions: sleeved with the Don Joy Knee support (S-DJ); braced with the McDavid lateral knee support (B-MD); and the control, unsupported condition (C-UN). The order of experimental conditions and the specific knee tested were randomized. The subjects were administered a Biodex knee extension test at 60 deg/sec, 210 deg/sec, and 450 deg/sec. The test protocol consisted of five maximal repetitions at 60 deg/sec, twenty maximal repetitions at 210 deg/sec and thirty maximal repetitions at 450 deg/sec. The following isokinetic measures were recorded: (1) peak torque to body weight ratio at 60 deg/sec. (2) work to fatigue ratio at 210º and 450 deg/sec. (3) average power at 210º and 450 deg/sec, and (4) range of motion at 60º, 210º, and 450 deg/sec. One way repeated measures analysis of variance revealed significant difference ( p > .03 ) in peak torque to body weight ratio treatment groups; work to fatique ratio, average power and range of motion revealed no significant diference among the three experimental conditions. The investigator concluded that prophylatic knee sleeves/braces effects peak torque to body weight ratio; the effect of different levels of condition does not depend on what level of speed is present for work to fatigue, average power and range of motion.

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