Reverse Raises/Shin Splits: Reps & Sets?

[PumpMasterFlex]

Hey all,

I just added reverse calf raises to my routine to combat my shin splints. I know I should have been doing them with calves all along, but for some reason I didn't find out about them until last week. My question is, how many reps/sets should I be doing and how often per week? Should I be doing these on the heavy side or go for higher reps? When I do calves I usually do higher reps--something anywhere from 25 to 50 depending on the day. I know body parts (and people) respond differently, but any advice would help. This muscle is new to me and relatively weaker than my calves (hence, the shin splints).

Note:
It's been a while since I've been able to jog more than a mile without getting terrible shin splints. I'm 25, 5'5'', 175lbs, and about 12% BF. I'm trying to lean up for summer, but it's hard when the only cardio I can do is on a bike (shins).


Thanks

[PumpMasterFlex]

Any ideas?