Effects of Pressure Applied to the Body by Sportswear upon Voluntary Reaction Time
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.14 Vol.14】
Normal healthy female subjects wearing a pressure sportswear were ordered to perform a key-pressing simple reaction time task in response to visual stimulus. Following results were obtained :
1) Reaction time measured as a latency from stimulus to the closure of key switch was longer in a pressure wear than in a nonpressure wear.
2) This increase of reaction time was due to an increase of premotor time (latency of EMG onset), and not due to electromechanical delay (time lag from EMG onset to key closure).
3) These results suggest that a pressure applied to the whole body reduces the speed of information processing in the central nervous system and, as a result, delays the onset of voluntary reaction to the stimulus.
DESCENTE SPORTS SCIENCE Vol.14/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
1) Reaction time measured as a latency from stimulus to the closure of key switch was longer in a pressure wear than in a nonpressure wear.
2) This increase of reaction time was due to an increase of premotor time (latency of EMG onset), and not due to electromechanical delay (time lag from EMG onset to key closure).
3) These results suggest that a pressure applied to the whole body reduces the speed of information processing in the central nervous system and, as a result, delays the onset of voluntary reaction to the stimulus.
DESCENTE SPORTS SCIENCE Vol.14/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Tatsuyuki Ohtsuki, Hee-Eun Kim, Hiromi Tokura |
|---|---|
| University or institution | Nara Women's University |
Keywords
sportswear, simple reaction time, visual stimulus, pressure wear, premotor time, EMG onset