If you’re concerned, older, overweight or never worked out before, don’t worry. You don’t have to do high intensity exercise.

In fact, I strongly recommend you avoid high intensity exercise if any of the following applies to you:

• You’ve been inactive for a significant period.
• You don’t have your doctor’s approval.
• You’re obese.
• You’re susceptible to orthopaedic stress.
• You have significant joint / mobility issues.
• You have any cardiac related concerns / issues.

If any of these do apply to you, a low impact, low intensity cardio such as walking could be your best choice of activity.

Another consideration is the enjoyability factor I’ve mentioned. If you can’t bear the intensity of the work required, then simply don’t do it. Low and moderate cardio is still useful and still provide positive health benefits.