DAN Medical Frequently Asked Questions
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>The timing and intensity of exercise during a dive can substantially affect your risk of DCS. A high workload during the descent and bottom phase of a dive will increase your inert gas uptake, effectively increasing the subsequent decompression stress. And exertion near the end of or immediately after a dive, particularly if it involves high joint forces, can stimulate bubble formation and increase the likelihood of bubbles passing through the lungs without being filtered out of the circulation.
>You should keep your exercise intensity as low as possible during the bottom phase of a dive. Mild exercise — on the order of no more than two to three times resting effort, and with very low joint forces — is appropriate during the upper ascent and stop phases of a dive. However, any exercise, particularly exercise involving high joint forces, should be avoided as long as possible after a dive. If you are unable to avoid postdive exercise, you should keep your dive profiles very conservative to minimize your overall risk.