Why must you do resistance training?

Muscles/bones/tissue. Some of the best information on resistance training is from acsm, eg, www. Acsm. Org/docs/current-comments/rtandip. Pdf www. Acsm. Org/docs/current-comments/resistancetrainingandtheoa. Pdf if you want to do this at home, http://www. Acsm. Org/access-public-information/articles/2012/02/02/a-strength-training-program-for-your-home lists equipment and preparation needed.