| 摘要 |
An abdominal training apparatus designed to be used by a seated exerciser for concentrated training of the abdominal muscles in performing crunch exercises, comprising an upper portion and a lower portion pivotably suspended from a base, the upper portion and lower portion being linked together causing them to rotate in opposing directions toward, and in a fixed angular proportion to, one another. The apparatus includes weight addition means on the upper and lower portions to respectively increase and decrease the force required to perform the crunch exercises, so as to accommodate both advanced and beginning exercisers as well as those with injured or weak abdominal muscles. The apparatus further includes a pivotably mounted seat portion having a plurality of angular positions enabling the apparatus to be used by an exerciser to target both the oblique and the frontal abdominal muscles.
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