I have to agree with Unident. A 45-minute strength workout with a personal trainer should be pretty challenging, and I wouldn't think it would leave you with enough energy to then do a hour of cardio after. I don't think you're undoing anything, but would encourage you to increase the intensity of your strength workout.
If your strength training is sufficient quality then how can you achieve an hour of cardio? I've had sessions I can barely operate the car on the way home due to tiredness of muscles.
I would question the usefulness of any ST programme that you can complete an hour of cardio immediately afterwards.
Also, your muscles do like to have a small carb/protein snack after a good ST session within about an hour, so you're depriving yourself of that and the rest period for healing up when you exercise again immediately afterwards.
You're not doing yourself "harm". You're not exercising at your best, though.
I really need some guidance. I work out with a personal trainer twice a week for 45 min. After that I usually do the treadmill for 1 hr. I also take Spinning classes at least 3 times a week. I've been told that doing 1 hr of cardio after strength training is too much. Now I'm completely confused, I thought I was doing something good and come to find out I might be undoing the strength training by doing too much cardio. Help! Can someone enlighten me? Is there an easy to understand book that talks about this?
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