Does weight training hamper CV work outs?
Well, the reason is simple. You are just not letting your muscles rest since you are doing more exercise. It generally takes 48 hours to recover from serious weight training exercises where you are pushing to your limits. Think about your goals. Weight training and cardio can be used for just about opposite goals. You don’t necessarily need weight training to ‘tone up’. Look at body-weight resistance exercises that you can combine with cardio, rather than lifting huge weights.