Changes In Skin-Gas Acetone Concentrations Following Exercise by Portable Skin-Gas Acetone Analyzer Using Electrochemical Sensors
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.37 Vol.37】
ABSTRACT
We examined the changes in skin-gas acetone concentrations following the 60% heart rates (HR) max cycle exercise by the portable skin-gas acetone analyzer using electrochemical sensors.
The standard acetone gases significantly (r=0.992, p<0.05) related to the results of same standard gas measurements by the portable skin-gas acetone analyzer. Thus, we confirmed the reliability of acetone gas measurements by the portable skin-gas acetone analyzer.
Six healthy male students (22.2 ± 1.5 years; mean ± SD) volunteered as the subjects, and none of them were smokers. The subjects performed 60% HRmax cycle exercise for 30 min. Skin-gas acetone concentrations of each subject were measured from the first finger of right hand using a probe at rest, 5, 10, 15, 20, 30 min during, and 5, 10, 20 min after the exercise. HR were also measured at same point using HR monitor of the cycle ergometer.
Skin-gas acetone concentrations significantly increased 20 (p<0.01) and 30 (p<0.05) min during exercise compared to the resting value, then returned to the resting value after the exercise.
These results suggest that the skin-gas acetone concentrations increase following 60% HRmax cycle exercise for 30 min. Thus, the portable skin-gas acetone analyzer using in this study is reliable and useful to measure skin-gas acetone concentrations from the fingertip for only 2min.
DESCENTE SPORTS SCIENCE Vol.37/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
We examined the changes in skin-gas acetone concentrations following the 60% heart rates (HR) max cycle exercise by the portable skin-gas acetone analyzer using electrochemical sensors.
The standard acetone gases significantly (r=0.992, p<0.05) related to the results of same standard gas measurements by the portable skin-gas acetone analyzer. Thus, we confirmed the reliability of acetone gas measurements by the portable skin-gas acetone analyzer.
Six healthy male students (22.2 ± 1.5 years; mean ± SD) volunteered as the subjects, and none of them were smokers. The subjects performed 60% HRmax cycle exercise for 30 min. Skin-gas acetone concentrations of each subject were measured from the first finger of right hand using a probe at rest, 5, 10, 15, 20, 30 min during, and 5, 10, 20 min after the exercise. HR were also measured at same point using HR monitor of the cycle ergometer.
Skin-gas acetone concentrations significantly increased 20 (p<0.01) and 30 (p<0.05) min during exercise compared to the resting value, then returned to the resting value after the exercise.
These results suggest that the skin-gas acetone concentrations increase following 60% HRmax cycle exercise for 30 min. Thus, the portable skin-gas acetone analyzer using in this study is reliable and useful to measure skin-gas acetone concentrations from the fingertip for only 2min.
DESCENTE SPORTS SCIENCE Vol.37/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Hiroshi Itoh*1, Tetsuo Ohkuwa*1, Takao Tsuda*2 |
|---|---|
| University or institution | *1 Graduate School of Engineering, Nagoya Institute of Technology, *2 Research Fellow, Nagoya Institute of Technology |
Keywords
skin-gas, ketone body, acetone, submaximal cycle exercise, electrochemical sensor