I am about to re-embark on a weight loss(primarily)running plan. I have read in many articles that cross training and core exercises should or could be added after a run.
My problem is(and always has been) is that after a run I have no energy to do extra work. I feel thta if I am not shattered then my run has not been given 100%. Am I using the wrong mindset and is it ok to leave surplus energy to perform core exercises etc?
Any advice gratefully accepted.
PS Due to a health problem I only use a treadmill at home for the moment.