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Portrait of female body fitness icon making pull ups with straight legs warming up her abs and spinal muscles looking hapy with her extremely fit body. Stock Photo by ©ringsaroundme 174493740
Are hanging core exercises (on a pull-up bar) more effective than core exercises on the ground? - Quora
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Athlete Doing Pull-up Bar Abdominal Exercise in Gym Stock Image - Image of hanging, exercise: 100359365
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