This means that your muscles undergo sufficient rigor to require additional oxygen, which means they'll need time to recover. (fitness-baron.com)
Doing so yields brain - based learning experiences that get blood flowing and provide additional oxygen to the brain — thus enabling higher levels of learning. (edutopia.org)
After 1 hour of strength training in the gym, your body will continue to intake additional oxygen hours after the workout is over. (getthebestsupplements.com)