Stay active
 

Stay Active With Aerobic Conditioning

Don't dismiss the importance of steady-state cardio. High-intensity sprinting and intervals are great for calorie burning but, when it comes to improving your overall fitness levels, aerobic work could be the answer. Maintaining a steady intensity for an extended period of time—think 45-60 minutes of work at a heart rate of 130-140 beats per minute—strengthens your hearts ability to pump blood so that you can train harder and recover better.