Table 1.

Literature review of studies that performed instrumented gait analysis in post-polio syndrome (PPS) patients. single subject case-studies were not included in the review.

Primary Outcome Measures of Gait	Technology	N	Main Finding	Fall-Related Data	Reference
Forces and moments passing through knee-ankle-foot orthoses	Load cell in the orthosis	4	Knee joint forces and moments) were composed of knee flexion moments and axial compression forces	None	[17]
Knee extension moments while walking with an orthosis	Load transducer, motion capture system and force plates	4	Adding a dorsiflexion stop at the orthotic ankle decreased knee flexion moments	None	[18]
Gait symmetry while using difference orthoses	Motion capture system	7	Powered orthosis affected gait symmetry in the base of support, swing time, stance phase percentage, and knee flexion during swing phase	None	[19]
Kinematics and spatiotemporal parameters while walking with different orthoses	Motion capture system	7	The powered knee-ankle-foot orthosis reduced gait speed and step length and increased stance phase percentage, knee flexion, and hip hiking	None	[20]
Kinematics and energy consumption while walking with an electromechanical orthosis	Motion capture system and force plates	4	Increased knee flexion in the swing phase with the orthosis	None	[21]
Effect of an orthosis with drop lock vs. powered knee joints on gait speed and distance	Stop watch and distance measurement	7	Walking with the powered orthosis reduced walking speed and distance	None	[22]
Timed Up-and-Go test, the Comfortable and the Fast Gait Speed tests, and 6-Minute Walk test	Stop watch	30	Test-retest reliability was established	None	[23]
Kinematics and 6-Minute Walk test	Motion capture system	18	Walking speed was negatively correlated with the increased hip flexion	None	[24]
Timed Up-and-Go test and 6-Minute Walk test	Stop watch	81	Higher score in the 6-min walk test reduced the risk of fall	Fall history and fear of falling	[11]
Kinematics and kinetics while walking with dorsiflexion-restricting ankle-foot orthoses	Motion capture system and force plates	16	The orthosis increased gait speed and forward progression of the center of pressure in mid-stance. It reduced ankle dorsiflexion and knee flexion in mid- and terminal stance	Fear of falling	[25]
Spatio-temporal parameters and symmetry indices	Motion capture system	26	Subjects who did not report falling indoors in the last 6 months had higher gait velocity and cadence, shorter double support stance and step durations, longer step length and better step length symmetry index.	Number of falls	[16]
Ten-meter walk test and number of steps per day	Pedometer	128	Subjects with one or more falls in the preceding year had slower gait speed and higher fear of falling	Fall history and fear of falling	[26]