4 Ways to Do Sit Ups - wikiHow

Sit ups are an excellent core muscle exercise that target your abdominal muscles, hip flexors, and lower back. When done slowly and carefully, sit ups will not cause back pain, and instead can aid digestion, build muscle, and improve
Sit ups are an excellent core muscle exercise that target your abdominal muscles, hip flexors and lower back. When done slowly and carefully, sit ups will not cause back pain, and instead can aid digestion, build muscle, and improve

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4 Ways to Do Sit Ups - wikiHow

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4 Ways to Do Sit Ups - wikiHow Core muscle exercises, Abdominal muscles, Core muscles

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