What if I Only Have 30 Minutes for a Workout?

Then go for a run, says trainer Chris Carmichael. He also says you can stop a workout routine for a week to 10 days before you lose much fitness. But why would you want to stop?

Carmichael isn't a huge fan of strength training for time-pressed endurance athletes. "I've had much more success with time-limited athletes when I've focused the time they have on workouts that address the unique demands, and ranges of motion, specific to their sports."