Instituto Henriqueta Teixeira

Instituto Henriqueta Teixeira

Artigo

29.03.10

Contrast water immersion hastens plasma lactate decrease after intense anaerobic exercise

Journal of Science and Medicine in Sport (2007) 10, 467—470

R. Hugh Morton*

Institute of Food, Nutrition and Human Health, Massey University,
Private Bag 11-222, Palmerston North, New Zealand
Received 10 November 2005; received in revised form 23 August 2006; accepted 14 September 2006

Summary

The benefits of rapid recovery after intense exercise are widely recognised, and lactate elimination is one indicator of recovery rate. This study examined the effect of contrast (alternating hot and cold) water immersion (CWI) on the rate of plasma lactate decrease during recovery after intense anaerobic exercise. Eleven subjects on each of two occasions undertook four successive 30-s Wingate tests separated by 30-s rest periods. On each occasion, plasma lactate concentration during recovery was measured 5 min post-exercise and thereafter at 5 min intervals for 30 min. On one occasion  (determined randomly), the subjects recovered passively (PR) on a recovery bed and, on the other, they alternated partial body immersion in hot (36 ◦C) and cold (12 ◦C) water baths. Plasma lactate concentrations were analysed by repeated measures analysis of variance and by fitting a linear regression model, allowing for both gender and recovery mode differences. The rate of decrease in plasma lactate concentration over the 30-min recovery period was significantly higher (p < 0.001) in CWI; 0.28(±0.02) mmol L−1 min−1 (CWI) compared to 0.22(±0.02) mmol L−1 min−1 (PR). These values do not differ significantly between males and females. Contrast water immersion is a valid method of hastening plasma lactate decrease during recovery after intense anaerobic exercise for both males and females. An approximately 1.8 mmol L−1 difference between the two conditions may be expected after 30 min. With differences among elite competitors as little as 1—2%, this reduction may be of practical significance. © 2006 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

KEYWORDS:
Cryotherapy; Hydrotherapy; Recovery; Thermotherapy

Baixar Arquivo Arquivo

voltar

Rua Sinval de Sá, 766
Bairro Cidade Jardim
Belo Horizonte - MG
CEP: 30.380-070
(31) 3285.1133 / henriqueta@ssrp.com.br