5. Leg Raises

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To start toning your abs by hitting up the lower abdominal muscles, Riggins suggests 30 seconds of leg raises.

Here's how: Turn on your back with legs straight and your feet and ankles together.

Raise your legs up and down in a vertical position from your body, while keeping your belly button.

Slowly bring legs back down, but if that is too difficult, tuck your knees.

Hand and Arm Raises
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