Int J Sports Med 2013; 34(05): 444-448
DOI: 10.1055/s-0032-1321800
Orthopedics & Biomechanics
© Georg Thieme Verlag KG Stuttgart · New York

Is the Deleterious Effect of Cryotherapy on Proprioception Mitigated by Exercise?

F. Ribeiro
1   CESPU, Polytechnic Health Institute of the North, Physiotherapy Department, Gandra PRD, Portugal
2   University of Porto, Faculty of Sport, Research Centre in Physical Activity, Health and Leisure, Porto, Portugal
,
S. Moreira
1   CESPU, Polytechnic Health Institute of the North, Physiotherapy Department, Gandra PRD, Portugal
,
J. Neto
3   Bwizer, Health Partners, Leça do Balio, Portugal
,
J. Oliveira
2   University of Porto, Faculty of Sport, Research Centre in Physical Activity, Health and Leisure, Porto, Portugal
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accepted after revision 18. Juni 2012

Publikationsdatum:
05. Oktober 2012 (online)

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Abstract

This study aimed to examine the acute effects of cryotherapy on knee position sense and to determine the time period necessary to normalize joint position sense when exercising after cryotherapy. 12 subjects visited the laboratory twice, once for cryotherapy followed by 30 min of exercise on a cycloergometer and once for cryotherapy followed by 30 min of rest. Sessions were randomly determined and separated by 48 h. Cryotherapy was applied in the form of ice bag, filled with 1 kg of crushed ice, for 20 min. Knee position sense was measured at baseline, after cryotherapy and every 5 min after cryotherapy removal until a total of 30 min. The main effect of cryotherapy was significant showing an increase in absolute (F7,154=43.76, p<0.001) and relative (F7,154=7.97, p<0.001) errors after cryotherapy. The intervention after cryotherapy (rest vs. exercise) revealed a significant main effect only for absolute error (F7,154=4.05, p<0.001), i. e., when subjects exercised after cryotherapy, the proprioceptive acuity reached the baseline values faster (10 min vs. 15 min). Our results indicated that the deleterious effect of cryotherapy on proprioception is mitigated by low intensity exercise, being the time necessary to normalize knee position sense reduced from 15 to 10 min.