NWB is an abbreviation for 'non-weight-bearing'.
Effects of weight-bearing versus nonweight-bearing exercise on function, walking speed, and position sense in participants with knee osteoarthritis: a randomized controlled trial. Jan MH, Lin CH, Lin YF, Lin JJ and Lin DH. Arch Phys Med Rehabil. 2009 Jun;90(6):897-904. doi: 10.1016/j.apmr.2008.11.018.
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