Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine ( 2004 ) 03 , 83 - 90

Research article
The Effect of Cryotherapy on Three Dimensional Ankle Kinematics During a Sidestep Cutting Maneuver
Beth L. Atnip, Jean L. McCRORY 
Author Information
Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, KY, USA

Jean L. McCRORY
✉ Neuromuscular Research Laboratory, UPMC Center for Sports Medicine, 3200 South Water Street, Pittsburgh, PA 15203, USA
Email: mccroryjl@msx.upmc.edu
Publish Date
Received: 02-11-2003
Accepted: 30-03-2004
Published (online): 01-06-2004
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ABSTRACT

Although cryotherapy is commonly used in the treatment of acute and chronic athletic injuries, the deleterious effects of limb cooling, such as decreased nerve and muscle function, slowed sensation and inhibition of normal relaxes, may put an athlete at increased risk of additional injury. The purpose of this study was to determine the effects of cryotherapy on subtalar and ankle joint kinematics of healthy athletes performing a sidestep 45° cut. We hypothesized that greater joint displacements and velocities would be seen after icing. Twenty one subjects performed a 45° sidestep cut prior to and after limb cooling. Retroreflective markers were placed on the subject’s shank and foot while 6 high-speed cameras were used to collect the kinematic data. In this test-retest controlled laboratory study, a repeated measures ANOVA was performed on the PRE and POST icing data for the minimum and maximum joint displacements and velocities. No statistical differences were noted between the PRE and POST icing conditions. The results indicate that a 10-minute icing treatment did not have an effect on either the movement patterns or angular velocities. Our results do not support any change in practice of icing injured ankles for ten minutes during halftime of athletic events.

Key words: Biomechanics, movement, range of motion, running, musculoskeletal system


           Key Points
  • Cryotherapy does not affect ankle/subtalar joint movement.
  • Subjects utilize two different landing patterns: sagittal plane or frontal plane dominant.
 
 
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