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What is the biochemical and physiological rationale for using Cold Water Immersion in Sports Recovery? A Systematic Review
  1. Chris M Bleakley1,*,
  2. Gareth W Davison2
  1. 1 University of ulster, Jordanstown, United Kingdom;
  2. 2 University of Ulster, United Kingdom
  1. Correspondence to: Chris Bleakley, univeristy of ulster, Jordanstown, 26 prospect loanen, Carrickfergus, BT388QR, United Kingdom; chrisbleakley{at}


Cold-water immersion (CWI) is a popular recovery intervention after exercise. The scientific rationale is not clear and there are no clear guidelines for it use. The aim of this review was to study the physiological and biochemical effect of short periods of CWI. A computer based literature search, citation tracking and related articles searches were undertaken. Primary research studies using healthy human participants, immersed in cold water (<15°C), for 5-minute durations or less were included. Data were extracted on body temperature, cardiovascular, respiratory, and biochemical response. 16 studies were included. Sample size was restricted and there was large degree of study heterogeneity. CWI was associated with an increase in heart rate, blood pressure, respiratory minute volume and metabolism. Decreases in end tidal PCO2, and a decrease in cerebral blood flow was also reported. There was evidence of increases in peripheral catecholamine concentration, oxidative stress and a possible increase in free radical species formation. The magnitude of these responses may be attenuated with acclimatisation. CWI induces significant physiological and biochemical changes to the body. Much of this evidence is derived from full body immersions using resting healthy participants. The physiological and biochemical rationale for using short periods of CWI in sports recovery still remains unclear.

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