Sit-ups target your abdominal muscles, back muscles, and hip flexors, while crunches only target your abdominal muscles. • ...
When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Bored of planks and crunches? Why not try mixing things up with a killer ab ...
When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images/gzorgz Far from being an easy alternative, chair workouts can improve your ...
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