Association of Ectopic Fat Content in Non-Active and Active Muscles with Muscle or Subcutaneous Fat Thickness in Wheelchair Basketball Players: New Trial for Identification of Ectopic Fat Content in Skeletal Muscles of Lower (Non-Active) and Upper (Active
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.38 Vol.38】
ABSTRACT
The present study aimed to determine the relationship between ectopic fat content and muscle or subcutaneous fat thickness of the upper arm and thigh in eight wheelchair basketball players (mean age, 41.0±10.3years). Echo intensity and muscle thickness of the biceps brachii (Bi) and rectus femoris (RF) and of subcutaneous fat at same sites were determined by ultrasonography. Echo intensity was taken as ectopic fat content. Echo intensity was calculated based on the mean of a gray scale. Echo intensity was significantly higher for RF than Bi (p<0.05). Echo intensity significantly and inversely correlated with the muscle thickness of Bi and RF (both p<0.05), whereas echo intensity and subcutaneous fat thickness of both muscles did not significantly correlate. A significant inverse association between echo intensity and muscle thickness persisted in the RF (p<0.05), but not in the Bi after controlling for age. These findings suggest that ectopic fat content correlates with muscle mass in the thigh muscles of male wheelchair basketball players.
DESCENTE SPORTS SCIENCE Vol.38/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
The present study aimed to determine the relationship between ectopic fat content and muscle or subcutaneous fat thickness of the upper arm and thigh in eight wheelchair basketball players (mean age, 41.0±10.3years). Echo intensity and muscle thickness of the biceps brachii (Bi) and rectus femoris (RF) and of subcutaneous fat at same sites were determined by ultrasonography. Echo intensity was taken as ectopic fat content. Echo intensity was calculated based on the mean of a gray scale. Echo intensity was significantly higher for RF than Bi (p<0.05). Echo intensity significantly and inversely correlated with the muscle thickness of Bi and RF (both p<0.05), whereas echo intensity and subcutaneous fat thickness of both muscles did not significantly correlate. A significant inverse association between echo intensity and muscle thickness persisted in the RF (p<0.05), but not in the Bi after controlling for age. These findings suggest that ectopic fat content correlates with muscle mass in the thigh muscles of male wheelchair basketball players.
DESCENTE SPORTS SCIENCE Vol.38/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Maya Hioki, Shusaku Kume |
|---|---|
| University or institution | Teikyo Heisei University |
Keywords
wheelchair player, ectopic fat, ultrasonography, non-active muscle, muscle thickness