Hey it looks like that one may not work all the time. I only have 5 people unlocked in the standard mode, Glitch Jimkata, Valley Grrl, Thrasher, and Turbo. I did a dmp for each of them and got some different results. I'm posting them here.
[Infinite Health 1]
580F0000 0607C6E0
580F1000 00000000
580F1000 00000020
580F1000 000002C8
580F1000 00000050
780F0000 000004E8
610F0000 00000000 00000007
[Infinite Health 2]
580F0000 0607C6E0
580F1000 00000000
580F1000 000000F8
580F1000 000002C8
580F1000 00000050
780F0000 000004E8
610F0000 00000000 00000007
[Infinite Health 3]
580F0000 0608C060
580F1000 00000068
580F1000 00000350
580F1000 000002C8
580F1000 00000050
780F0000 000004E8
610F0000 00000000 00000007
[Infinite Health 4]
580F0000 0606FA00
580F1000 00000030
580F1000 00000378
580F1000 000002C8
580F1000 00000050
780F0000 000004E8
610F0000 00000000 00000007
[Infinite Health 5]
580F0000 0608C060
580F1000 00000068
580F1000 00000360
580F1000 000002C8
580F1000 00000050
780F0000 000004E8
610F0000 00000000 00000007
I don't normally trust ones with offsets of 0's but it seems like others have no problems with them. So I'm giving you 5 of the several dozen that I found like that. If you have a save file with the other 5 characters unlocked, send it my way and I'll make sure that they point to them as well. But I've reloaded 10 different times and these all point to the health address for those 5 characters.