tummy crunch

Noun
  1. An exercise designed to strengthen the abdominal muscles (synset 100631874)
    is a type of: exercise, exercising, physical exercise, physical exertion, workout - the activity of exerting your muscles in various ways to keep fit
    subtypes: sit-up - a stomach exercise in which a person sits up from a supine position without using the arms for leverage
    same as: stomach exercise

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