What are PowerCranks and why are they better than just about any other training device out there for improving running form/speed, reducing risk of injury in athletes, strengthening and balancing all the lower extremity muscles including the core muscles, and for rehabilitation of the athlete.
in a word AWSOME!!!!!!!!! THEN BEST THING I EVER DID TO IMPROVE MY RUNNING AND FITNESS LEVEL!!!!!
vicky2c 3 years ago