Key result
Acute stair climbing reduces serum insulin levels in ~59% of subjects without causing post-exercise increases.
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The change in circulating levels of immunoreactive insulin (IRI) was studied in a group of six normal, three obese, and eight obese diabetic subjects undergoing the acute exercise of stair climbing. Bloods were sampled immediately before and after the exercise period. Serum IRI concentration decreased in ten subjects and did not increase in the remainder of the subjects. The data suggest an exercise metabolite rather than increased insulin secretion accounts for the enhanced glucose assimilation produced by muscular activity.
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Cochran et al. (1966) studied Obesity and diabetes (n=17). Acute stair-climbing exercise vs. Pre-exercise baseline was evaluated on Decrease in serum immunoreactive insulin (IRI) concentration. Acute stair-climbing exercise decreased serum immunoreactive insulin levels in 10 of 17 (58.8%) subjects and did not increase levels in the remaining 7 subjects.
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