title: Relationships of aerobic capacity and percent body fat with plasma free fatty acid following walking.
abstract: We investigated relationships of peak VO2 and percent body fat with postexercise plasma free fatty acid (FFA) and glycerol concentrations in 14 men using multiple-regression techniques. During 1 h of walking (36% of peak VO2), no significant differences in plasma-FFA response were attributed to either peak VO2 or percent body fat. However, individuals with higher peak VO2S tended to have greater elevations in plasma-glycerol concentration during exercise (p = 0.074). They also had greater peak FFA concentrations and FFA X glycerol(-1)-molar ratios immediately after exercise and faster subsequent clearing of excess FFA from the blood (p less than 0.05). Percent fat was not related to postexercise plasma glycerol, FFA, FFA X glycerol-1 responses. Differing postexercise FFA responses, as related to peak VO2, were due, not to varying rates of lipolysis but rather to different rates of FFA mobilization and utilization.
mesh_terms: D000273:Adipose Tissue / Q000033:anatomy & histology*; D000328:Adult; D000332:Aerobiosis; D001823:Body Composition; D005230:Fatty Acids, Nonesterified / Q000097:blood*; D005990:Glycerol / Q000097:blood; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D005082:Physical Exertion
chemical_list: D005230:Fatty Acids, Nonesterified; D005990:Glycerol