You’ve probably heard sayings like – any workout is better than no workout, or, no workout is a bad workout. Not strictly true. Yes, in theory working out is better for you than not, even if that session has to be cut short – hours of endless weights/cardio isn’t necessary, you can do a quick blast – as long as you work at a harder intensity – then it’s worth it – even if it’s only 20 minutes.
But, sometimes no workout is better, if you are going to the gym or to a class, having not eaten or slept well, then you could do yourself harm. Sometimes you do need to listen to your body and rest up. If you are so tired or have so little energy, then how will you ensure correct posture and technique? These can cause injury – and that means a lot more time out of the gym. Train smart.