The idea is simple.
Why not record your training or exercises for future reference and motivation. An idea for a startup is to have some professional review the uploaded private videos to help and pep talk the participants. This idea is meant as a motivation tool in pursuit of a healthier life style especially for those adults with a weight problem. Being overweight raises your risk for diabetes . Check out http://www.diabetes.org/are-you-at-risk/lower-your-risk/overweight.html .