Active Recovery Reduces the Decrease in Circulating White Blood Cells after Exercise

I. Wigernæs; A. T. Høstmark; P. Kierulf; S. B. Strømme

doi:10.1055/s-2000-8478

International Journal of Sports Medicine, Table of Contents

Int J Sports Med 2000; 21(8): 608-612
DOI: 10.1055/s-2000-8478

Immunology

Georg Thieme Verlag Stuttgart ·New York

Active Recovery Reduces the Decrease in Circulating White Blood Cells after Exercise

I. Wigernæs¹ , A. T. Høstmark^1,2 , P. Kierulf³ , S. B. Strømme¹

¹ The Norwegian University of Sport and Physical Education, Oslo, Norway
² Institute of General Practice and Community Medicine, University of Oslo, Norway
³ Department of Clinical Chemistry, Ullevaal University Hospital, Oslo, Norway

Abstract

This study was conducted to examine the effects of different recovery regimens on white blood cell count (WBCC) and muscle enzyme activities following strenuous, submaximal, steady state workouts on a treadmill. Fourteen endurance trained, healthy, non-smoking college-aged males participated in the study. The workouts were followed by either 15-min of rest recovery (RR), or active recovery (AR). The AR consisted of running at 50 % of V˙O₂max whereas RR implied complete rest. Seven subjects completed two sets of 60-min running at 70 % of V˙O₂max (moderate intensity group, MI) followed by either RR or AR. The other seven completed two sets of 30-min running at 80 % of V˙O₂max (high intensity group, HI) followed by either RR or AR. Blood samples were drawn at rest, immediately after exercise, and at 15- and 120-min post-exercise (PE). Blood lactate concentrations increased throughout the running trials. Creatine kinase (CK), lactate dehydrogenase (LD), white blood cell count (WBCC) and thrombocyte count increased between rest and 0-min PE (p < 0.05). Between 0 - 15-min PE, there were several significant differences between RR and AR in the HI-trial. RR was associated with a 35 % reduction in WBCC, compared to only 6 % decrease in AR (p < 0.02). Neither during 15 - 120-min PE this period, nor in the 120-min sample alone, were there any significant differences in WBCC between the RR and AR experiments. In conclusion, the results show that AR as opposed to rest recovery prevents the initial 0 - 15-min PE fall in WBCC after strenuous endurance exercise.

Key words:

Leukocytes, creatine kinase, lactate dehydrogenase, endurance exercise, recovery, young trained men.

Full Text

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Ine Wigernæs

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