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I already do a weight lifting program with sets and reps. Are there any HIIT-only programs that I can use on the days I'm not lifting? I don't want to overtax my muscles by continuing to lift on my off days.
HIIT-only programs
I already do a weight lifting program with sets and reps. Are there any HIIT-only programs that I can use on the days I'm not lifting? I don't want to overtax my muscles by continuing to lift on my off days.