The plank is a sound exercise for developing basic core strength. Although there are several variations, the photograph above shows a standard plank. Note the straight torso and neutral spine (ie, without flexion or extension). As their strength increases, patients can hold this position for longer periods.
Reproduced with permission from: Escamilla RF. Core trunk stabilization. In: Sports Medicine of Baseball, Dines JS, Altchek DW, Andrews J, et al (Eds), Lippincott Williams & Wilkins, Philadelphia 2012. Copyright © 2012 Lippincott Williams & Wilkins.
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