ABDOMINAL CRUNCH: HANDS BEHIND HEAD - Exercises routines

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ABDOMINAL CRUNCH: HANDS BEHIND HEAD - Exercises routines

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Fitness woman doing criss-cross exercise for the press lying on a sports mat, a girl in sportswear doing fitness crunches, on a pink background Stock Photo - Alamy

At home or on the road, this exercise routine is easy to squeeze in anytime

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