The jackknife Pilates exercise requires strong core muscles and good control over the neck and shoulders. Learn more about the jackknife advanced Pilates exercise with tips from a fitness trainer in this free exercise video.
Expert: Carol Ann
Contact: www.studioGroupX.com
Bio: Carol Ann has 19 years of professional fitness training experience and holds a master's degree in Exercise Science and Health Promotion.
Filmmaker: Christopher Rokosz
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lokio08 3 years ago