Ankle-Foot Orthosis

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Assignment
Subject: SIPO 301 Research process in PO
Student name: G. Alban Delasalle
ID: U6018046
TITLE
Contribution of ankle-foot orthosis moment in regulating ankle and knee motions during gait in individuals post-stroke.
PROBLEM STATEMENT
Controlling of the affected limb joint motion is a major objective in the rehabilitation process of the post-stroke patients and ankle-foot orthosis has took part in this process of rehabilitation all along. In order to provide an effective ankle-foot orthosis the quantity of moment created by the ankle-foot orthosis on the ankle and knee joints should be defined which is the most important and challenging part in the process of manufacturing an ankle-foot orthosis. The ankle-foot orthosis which were …show more content…

The ankle and knee joint angle and moments of 5 steps on the affected side will be taken to get the average in each spring level in each and every participant. The mechanical property of the AFO in each spring level will be calculated by the custom device (Gao et al., 2011). The AFO moment will be standardized to body mass (Nm/kg) in each participant. The plantarflexion resistance moment and the plantarflexion angles will be defined as negative.
The average of the AFO moment in a gait cycle of the ten participants on four spring levels will be taken. The mean of the average ankle moment and mean of the anatomical ankle moment in a gait cycle will be plotted for each spring level. In order to find out the contribution of the AFO moment produced to control ankle and knee joint motion the mean AFO moment will be plotted against the mean ankle angular position and mean knee angular position in a gait cycle as a scattered graph under the four spring levels in the ten participants.

Statistical analysis
ANOVA method will be used to compare the AFO peak moment, ankle and knee angular positions at initial contact between the spring levels (S1-S4). Spring conditions will be analyzed for significant differences with the adjustments by the multiple comparisons. Statistical analyses will be conducted in SPSS v.19.0 (IBM Corp. Armonk, USA) and statistical significance level will be set at α

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