Figure 5. Intramyocellular lipid content.

Mean fibre type-specific intramyocellular lipid content (expressed as percentage of area lipid stained) before exercise, immediately after exercise and following 2 h of post-exercise recovery as determined by quantitative fluorescence microscopy on oil red O stained muscle cross-sections (A). Data provided are means ± s.e.m.; * significantly lower than pre-exercise values; ∧ significantly higher than type II muscle fibres (P < 0.05). Individual results showing average intramyocellular lipid content in the type I muscle fibres before, after and 2 h after exercise (B).