“…In a review of 2011 [21], only 3 out of 92 outcome measures of kinematic measures used for assessing gait stability were performed using inertial sensors, but in the last 5 years, a large and growing body of literature has investigated the use of wearable inertial devices for assessing upright gait stability in healthy subjects [41], patients with stroke[27, 32,42], children with cerebral palsy [28,43], people with low-back pain [44], those with cognitive impairments [45], subjects with autism and Down Syndrome [46], and people with lower limb amputation [47] (for a more recent specific review see [17]). …”