yes I think you could easily use the 5/3/2 instead of going to a heavy single although they are almost identical as far as working to a rep max on your heaviest loaded set, as to bang for your buck boxing is outstanding, but in isolation you could lose out a wee bit if you are in a running sport then you have to run, so I feel a repeated speed interval session would be the most productive and if you are leg tired/sore substitute something off of your legs, ash