Crunches can help you get abs – but they do more than that.
No matter which variations you follow, crunches have the advantage over sit-ups of being able to better target abdominal muscles. "Because the movement is smaller, you can control momentum more," ...
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I did 30 reverse crunches with leg lifts every day for a week — here's what happened to my body
The reverse crunch involves using your core muscles to raise your legs ... your butt and hips off the floor when your legs are already raised high. Done properly, this one is a real test for ...
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Negative stiffness in calf muscles enhances high-speed hopping
Researchers at the University of Tokyo reveal the way our legs adapt to fast movements. When people hop at high speeds, key ...
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Who needs planks? The crunch clap exercise builds powerhouse core muscles without weights
As mentioned, crunch claps involve bringing the hands together around the backs of the legs as you crunch from a seated or supine position. The abdominal exercise builds stronger core muscles and ...