Factors Contributing to Intra-Individual Variation of Serum Constituents: 2. Effects of Exercise and Diet on Variation of Serum Constituents in Healthy Subjects Bernard E. Statland, Per Winkel, and Henning Bokelund
A previous
report
of within-day
variation
of serum
constituents was based on values in healthy subjects who did not undergo strenuous exercise and who were in a fasting state. In this study we consider the effects of exercise and of a noon meal on the same serum constituents. The statistical significance (ttest) was computed on the basis of the ratios of values (after/before) on the day of exercise vs. the ratios on the nonexercise day, or, for the effect of meal, the ratios of values (after/before the noon meal) on the eating day vs. the ratios of values taken at the same hour on the fasting day. Significant effects seen after exercise (P
