In one book I read, the target heart rate for a cardiovascular workout for a person my age (36) was somewhat lower (10-15bpm) than the rate listed on some of the machines I'm familiar with at the gym. ...
For a healthy heart, I've got myself into a habit of stopping by the gym after work and using the fitness equipment (treadmill, stair machine, etc.) or using the stationary bike I have at home. ...
It seems that every time I do a leg-intensive cardio workout, like stair climbing, intense elliptical machine, or running more than 3-4 miles, my legs take forever to bounce back. They don't hurt so ...
I've heard that being ill for a few weeks or so is enough for your endurance to drop drastically. Is this really true?