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Curlups
The crunch or curl-up is an abdominal exercise that works the rectus abdominis muscle. It enables both building and defining "six-pack" abs and tightening the belly. Crunches use the exerciser's own body weight to tone muscle and are recommended by some experts, despite negative research results, as a low-cost exercise that can be performed at home. Crunches are less effective than other exercises such as planks and carry risk of back injury. Form The biomechanics professor Stuart McGill was quoted in ''The New York Times Health'' blog as stating: An approved crunch begins with you lying down, one knee bent, and hands positioned beneath your lower back for support. "Do not hollow your stomach or press your back against the floor", McGill says. Gently lift your head and shoulders, hold briefly and relax back down. Research has shown that both sit-ups and crunches are mediocre strength-building exercises and have injured many people. In a crunch, unlike a sit-up, the lower bac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bodyweight Exercises
Calisthenics (American English) or callisthenics (British English) () is a form of strength training that utilizes an individual's body weight as resistance to perform multi-joint, compound movements with little or no equipment. Calisthenics solely rely on bodyweight for resistance, which naturally adapts to an individual's unique physical attributes like limb length and muscle-tendon insertion points. This allows calisthenic exercises to be more personalized and accessible for various body structures and age ranges. Calisthenics is distinct for its reliance on closed-chain movements. These exercises engage multiple joints simultaneously as the resistance moves relative to an anchored body part, promoting functional and efficient movement patterns. Calisthenics' exercises and movement patterns focuses on enhancing overall strength, stability, and coordination. The versatility that calisthenics introduces, minimizing equipment use, has made calisthenics a popular choice for encour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
