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Related Experiment Videos

Active recovery reduces the decrease in circulating white blood cells after exercise.

I Wigernaes1, A T Høstmark, P Kierulf

  • 1The Norwegian University of Sport and Physical Education, Oslo. INEW@BRAGE.IDRETTSHS.NO

International Journal of Sports Medicine
|January 13, 2001
PubMed
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Active recovery (AR) prevents the immediate post-exercise drop in white blood cell count (WBCC) more effectively than rest recovery (RR) after strenuous endurance exercise. This finding highlights the benefits of AR for immune function recovery in athletes.

Area of Science:

  • Exercise Physiology
  • Immunology
  • Sports Science

Background:

  • Strenuous endurance exercise can impact immune function, indicated by changes in white blood cell count (WBCC).
  • Understanding optimal recovery strategies is crucial for athletes to manage physiological responses post-exercise.

Purpose of the Study:

  • To investigate the effects of active recovery (AR) versus rest recovery (RR) on WBCC and muscle enzyme activity.
  • To compare recovery responses between moderate intensity (MI) and high intensity (HI) exercise protocols.

Main Methods:

  • Fourteen trained male athletes underwent strenuous treadmill workouts (MI or HI).
  • Recovery periods involved either 15-min of active running (AR) or complete rest (RR).
  • Blood samples were collected at rest, immediately post-exercise, and 15- and 120-min post-exercise.

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Main Results:

  • Blood lactate, creatine kinase, lactate dehydrogenase, WBCC, and thrombocyte counts increased post-exercise.
  • Active recovery (AR) significantly mitigated the immediate post-exercise (0-15 min) reduction in WBCC compared to rest recovery (RR) in the high-intensity group.
  • No significant differences in WBCC were observed between AR and RR at 120-min post-exercise.

Conclusions:

  • Active recovery is more effective than rest recovery in preventing the immediate post-exercise decline in white blood cell count.
  • These findings suggest AR may support immune system recovery following intense endurance activities.