2018年11月1日
Onset of Accelerated Muscle Deoxygenation During the 20-m Shuttle Run Test in Boys
Pediatric Exercise Science
- ,
- ,
- 巻
- 30
- 号
- 4
- 開始ページ
- 474
- 終了ページ
- 479
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1123/pes.2017-0210
- 出版者・発行元
- Human Kinetics
<italic><bold>Purpose</bold>:</italic> This study aimed to compare the relative exercise intensity at which the onset of accelerated muscle deoxygenation occurs during the 20-m shuttle run test (20mSRT) between boys and men and to examine whether the timing of the onset of acceleration appearance is related to 20mSRT performance in boys. <italic><bold>Methods</bold>:</italic> Twenty-four boys performed the 20mSRT, during which concentration changes in oxygenated and deoxygenated hemoglobin and myoglobin (ΔOxy-Hb and ΔDeoxy-Hb, respectively) in the m. vastus lateralis were monitored using a portable near-infrared spectroscopy device. The boys’ data were compared with those of 29 men in a previous study. <italic><bold>Results</bold>:</italic> An onset of accelerated decrease in Δ[Oxy-Hb − Deoxy-Hb] was found in 11 of the 24 boys (45.8%) and 20 of the 29 men (69.0%) and was found at a higher relative exercise intensity in the boys than in the men. The number of laps at which the onset of acceleration occurred correlated with total laps in the boys (<italic>r</italic> = .87). <italic><bold>Conclusions</bold>:</italic> These findings demonstrate that the onset of accelerated muscle deoxygenation during the 20mSRT occurs at a higher relative exercise intensity in boys than in men. Our findings also show that the timing of the onset of acceleration appearance is associated with 20mSRT performance in boys.
- リンク情報
- ID情報
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- DOI : 10.1123/pes.2017-0210
- ISSN : 0899-8493
- eISSN : 1543-2920