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. Author manuscript; available in PMC: 2017 May 11.
Published in final edited form as: J Neurol Phys Ther. 2012 Mar;36(1):38–44. doi: 10.1097/NPT.0b013e3182472cf6

Figure 1. Comparison of the anterior-posterior ground reaction forces (AP GRF) for the paretic (black lines) and non-paretic legs (grey lines) of subjects of differing severity of hemiparesis.

Figure 1

Positive values represent propulsion, and the positive area under the curve is the propulsive impulse. Solid vertical lines indicate heel strike and dashed vertical lines indicate toe-off. Increased hemiparetic severity was associated with decreased paretic propulsion (Pp) and decreases in self-selected walking speed. (PHS = paretic heel strike; NTO = non-paretic toe off; NHS=non-paretic heel strike; PTO = paretic toe off; PHS = paretic heel strike; and NTO = non-paretic toe off)