Table 4. Changes over time in metabolic fitness. Data are means (±SD). Control (n=16) Stairclimbing (n=29) Total Cholesterol (mmol·L-1) -.19 (.61) -.02 (.50) HDL-C (mmol·L-1) +.09 (.30) +.14 (.17) LDL-C (mmol·L-1) -.18 (.59) -.13 (.49) TC: HDL-C ratio -.61 (1.42) -.79 (1.40) Triglycerides (mmol·L-1) -.10 (0.27) -.03 (0.58) No significant differences in changes over time between groups (p > 0.05). HDL-C = high density lipoprotein cholesterol, LDL-C = low density lipoprotein cholesterol, TC:HDL-C = ratio of total cholesterol to high density lipoprotein cholesterol.