Acute Responses to Exercise

Acute responses to exercise are the immediate physical changes your body experiences during and right after activity. These include increased heart rate and breathing to deliver more oxygen and nutrients to muscles, higher blood flow, and a boost in energy production. Your muscles produce more waste products like carbon dioxide and lactic acid, which can cause fatigue. The body also releases hormones like adrenaline to help you perform better. These responses are temporary and help your body meet the increased demands of exercise, returning to normal once activity stops and recovery begins.