I am a passionate soccer player and have a muscular dysfunction. My hamstrings is too short, so I have to train my butt strengthened so that it relieves the thighs. Since I'm rather lazy by nature and muscle exercises for the buttocks are not without well, I've searched for a simpler alternative. The TENS machine I am completely satisfied. I can not just train my butt (can), but also the thigh massage (leave). Since then I have much less pain in the thigh. Clear the stretching exercises I will not be around anyway but I was able to reduce the muscle training for the butt significantly.
After some time, I bought the slightly larger pads, so I "can handle" the same buttocks and thighs. For me, these are larger pads and the corresponding gel to the contact with the skin to improve in the basic set. That's why I prefer from even a star.