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Dynamic thermography: analysis of hand temperature during exercise
A Zontak1, S Sideman, O Verbitsky
1The Heart System Research Center, The Julius Silver Institute of Biomedical Engineering, Department of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa.
Annals of Biomedical Engineering
|December 10, 1998
Summary
This study reveals how skin temperature changes during exercise using thermography. Skin temperature follows a distinct pattern during exercise, reflecting the body's thermoregulation.
Area of Science:
- Exercise physiology
- Thermoregulation
- Dermatology
Background:
- Exercise impacts skin blood flow and temperature.
- Understanding skin temperature response is crucial for assessing physiological changes during physical activity.
Purpose of the Study:
- To characterize the normal skin temperature response to exercise using thermographic imaging.
- To analyze the dynamic balance between hemodynamic and thermoregulatory processes during exercise.
Main Methods:
- Ten healthy, active subjects underwent graded exercise tests to determine maximal oxygen consumption (VO2 max).
- Subjects then performed constant load exercises at 50%, 70%, and 90% of VO2 max.
- Skin temperature was monitored using thermographic imaging during exercise.
Main Results:
- Skin temperature response during constant load exercise showed an initial decrease, followed by an increase, and a quasi-steady-state.
- Temperature decrease and increase rates were not influenced by exercise intensity (50-90% VO2 max).
- Graded exercise resulted in a continuous skin temperature decrease throughout the test.
Conclusions:
- The thermographic skin response to exercise exhibits a specific pattern.
- This pattern reflects the dynamic interplay between hemodynamic changes and thermoregulatory mechanisms.
- Skin temperature monitoring provides insights into physiological responses during physical exertion.