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The Decline Bench Sit-Up (Decline Crunch) is a strength exercise targeting the abdominal muscles. It is usually performed on a slant weight bench set at an angle of 30-45 degrees.
Lie face up on the decline bench and securely fix your feet to the pads. Your knees should be bent at 90 degrees and your hands should be at the sides of your head.
Tense your abdominal muscles, lift your upper body and align it towards the sky. Exhale during this movement.
Hold the contraction for a moment, then slowly lower your upper body while inhaling. Make sure to keep your abdominal muscles engaged while lowering.