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Yoshinao Nakagawa,1 Masaaki Hattori2 1Human Performance Lab, Otaru University, Otaru, Hokkaido, 2Department of Community Development, Tokai University, Sapporo, Japan Abstract: The present study used magnetic resonance spectroscopy (1H-MRS) to examine quantitative differences in intramyocellular lipid (IMCL) contents in various muscle types at rest for individual athletes from different sport disciplines. Five groups consisting of sprinters, alpine skiers, cross-country skiers, endurance runners and untrained healthy male subjects volunteered for this study. Data were acquired using 1H-MRS from the tibialis anterior (TA), medial gastrocnemius (MG) and soleus (SOL) muscles. No significant difference was found in the cross-sectional area (CSA) of the TA, MG and SOL muscles, whereas the CSA of subcutaneous fat was significantly lower (p |
