After twenty years of training in gyms, I accidentally stumbled on Bodyweight training and calisthenics when trying to find a cure for my elbow tendonitis - caused by overtraining and heavy weights in the gym.
I began with a trx style training and in just a few months, lost weight, became more toned and most importantly, helped my tendonitis.
I now know that bodyweight training is an effective tool for many purposes, whether it be losing weight, staying trim, toning, or building massive body strength without the bulk.
If you are looking for something similar, give this a go and it will change your life, like it did mine.