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How isometric holds gives you supernatural strength. Ever noticed how some skinny guys can push, pull or hold things a much bigger guy can't move? It's not muscle. It's isometrics, training by holding still. This is the full guide: by the end, you'll know everything you need to start isometric training at home, with no weights. Disclaimer: We are not doctors, physical therapists, dietitians, certified trainers or any other licensed health or fitness professionals. This video is for education and entertainment, based on the published research listed above, and is not personal medical, training or nutrition advice. Hard isometric holds raise blood pressure while you do them: breathe out as you push, never hold your breath, and check with a doctor first if you have high blood pressure, a heart condition or a joint injury. Make sure any chair, wall or bar you use is solid and the space around you is clear. Stop if you feel sharp joint pain. If you're under 18, skip the all-out pushes and keep everything at a medium effort #isometrics #calisthenics #homeworkout