As a physical therapist of 26 years, I am always looking to try new interventions, and since I am rehabilitating my hamstring tendinosis, I thought I would give this a try. Bottom line, it’s effective and digs in deeper than the balls with small spikes all over it. I place this on a hard chair, then move my leg to all positions that let it dig in at an amount that I control. After about 10 minutes, I feel that it’s the right length of intervention and any further would be overdoing it. Very handy that I can bring this ball with me essentially anywhere as it is relatively small. Expect that my condition will be resolved completely within a month at current rate of healing.
