A sample exercise from "Fitness for Life" by Chuck Corbin and Guy Le Masurier. ... <看更多>

The curl up is a resistance training exercise that works your stomach muscles. This exercise uses your body weight for resistance. ... <看更多>

I created this video with the YouTube Video Editor (http://www.youtube.com/editor) ... <看更多>

The modified curl up is a great exercise to help with lower back pain. It is one of the big 3 McGill exercises which are some of the best ... ... <看更多>

Apr 15, 2017 - The bent-knee curlup is a type of crunch that is a strength exercise for abdominal muscles. This is a basic crunch for beginner and ... ... <看更多>