Journal of Sports Medicine & Doping Studies

Takuya Sakurai

Publications

• Research Article
  Effects of Resistance Exercise on Intramuscular Oxygenation and Muscle Fiber Composition
  Author(s): Fumio Aita, Shukoh Haga, Shogo Sato, Takuya Sakurai, Kazuki Esaki, Takafumi Hamaoka, Masao Mizuno, Koji Toshinai, Hiromi Miyazaki, Tohru Takemasa, Noboru Hashimoto, Junetsu Ogasawara, Toshihito Katsumura, Takako Kizaki and Hideki OhnoFumio Aita, Shukoh Haga, Shogo Sato, Takuya Sakurai, Kazuki Esaki, Takafumi Hamaoka, Masao Mizuno, Koji Toshinai, Hiromi Miyazaki, Tohru Takemasa, Noboru Hashimoto, Junetsu Ogasawara, Toshihito Katsumura, Takako Kizaki and Hideki Ohno
  
  Determining the oxygenation level of skeletal muscle is an effective non-invasive method of evaluating its physiological changes. Nevertheless, the relationship between muscle fiber composition and intramuscular oxygenation is still unclear. In the present study we examined the differences in muscle fiber composition and their relationship to muscle oxygenation levels by comparing power lifters (Training group), who regularly engaged in muscular resistance training, with ordinary healthy people (Control group). The vastus lateralis muscle oxygenation level was measured via near infrared continuous wave spectroscopy, and muscle tissues were collected and used for histochemical analyses in order to calculate muscle fiber compositions. When the rate of decrease in muscle oxygenation after performing a single squat at 50 and 80% of the participants’ maximal lifting weight (MLW) was .. Read More»
  DOI: 10.4172/2161-0673.1000133

  Abstract PDF