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Control of skin blood flow during exercise
1Laboratory for Human Performance Research, Pennsylvania State University, University Park 16802.
Medicine and Science in Sports and Exercise
|March 1, 1992
Summary
During exercise, skin blood flow (SkBF) regulation is crucial for heat transfer and maintaining blood pressure. This review details the complex control systems involved in SkBF during dynamic exercise.
Area of Science:
- Physiology
- Exercise Physiology
- Thermoregulation
Background:
- Skin blood flow (SkBF) increases with rising body temperature to dissipate metabolic heat.
- This heat transfer is vital during dynamic exercise.
- SkBF control involves intricate regulatory systems and efferent mechanisms.
Purpose of the Study:
- To provide an updated review of the complex control system governing SkBF during dynamic exercise.
- To explain how this control maintains blood pressure and muscle perfusion without compromising thermoregulation.
- To discuss factors influencing SkBF during exercise.
Main Methods:
- This study is a review of existing literature.
- It synthesizes information on physiological regulatory systems and vasomotor mechanisms.
- It examines the impact of exercise characteristics and influencing factors on SkBF.
Main Results:
- SkBF regulation during exercise is a complex interplay of neural and local factors.
- Exercise intensity, posture, and duration significantly influence SkBF responses.
- Factors like blood volume, fitness, heat acclimation, and age modulate SkBF control.
Conclusions:
- Effective control of SkBF during dynamic exercise is essential for survival.
- Understanding these complex regulatory mechanisms is key to managing thermoregulation and cardiovascular function.
- Further research into the modulating factors can inform strategies for optimizing exercise performance and heat tolerance.