Abstract

The results of 66 training studies involving the measurement of human blood lipid and lipoprotein changes over time, conducted over the last 26 yr, and representing 2925 subjects (2086 experimental and 839 control) were collected and statistically aggregated using the meta-analysis technique. The average exercising subject was found to have a reduction in total cholesterol of 10 mg/dl, total triglyceride decreased by 15.8 mg/dl, HDL-C increased by 1.2 mg/dl (NS), LDL-C decreased by 5.1 mg/dl, and total/HDL-C ratio showed a large decrease of 0.48. Initial levels of total cholesterol, total triglyceride, HDL-C, and total/HDL-C ratio were strongly correlated with their respective changes as a result of training, regardless of the data partitioning. Higher initial levels of total cholesterol, total triglyceride, and total/HDL-C ratio resulted in greater decreases post-exercise, and lower initiallevels of HDL-C resulted in greater post-exercise increases. Physical training seemed to produce beneficial changes in blood lipids and lipoproteins. However, initial levels, age, length of training, intensity, VO2max, body weight, and percent body fat have been shown in this meta-analysis to interact with exercise and serum lipid and lipoprotein changes. Verf.-Referat