One hundred patients who undergo subcutaneous ICD or pacemaker implant and consent to inclusion in the trial will be randomized to one of two groups. One group will receive standard of care instructions after implant. These standard instructions include: no pushing or pulling movements with arm on side of implant, no lifting over 5 lbs., and no movements above the level of the shoulder for six weeks post implant. This will be the control group. The second group, the exercise group, will be instructed verbally on a series of specific exercises (appendix A) to be completed at least three days per week for 6 weeks.