Discover the hard science needed to perfect each exercise and build your strongest body - at home or in the gym.Whether you are looking to tone and sculpt your body, lose weight, give yourself an edge in another sport, support bone strength, or simply improve posture, strength training can help you achieve your goals. With unique CGI artworks, this book gets under the skin of more than 100 exercises, to identify every muscle worked and show how they engage at every stage, so