Step by step instructions, muscle activation and variants for the Ball knee tuck.
The Pull-In on a stability ball is a core exercise performed in a plank position with your shins resting on the ball. By drawing your knees toward your chest, you intensely engage the abdominals while challenging balance and stability throughout the movement.
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The Ball knee tuck is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.