Home-based virtual pre- and post-exercise
Virtually (using home computer, iPAD, or study computer) we will administer: i) an instrumented L-shape mobility test where participants will wear 3 sensors (one Opal sensor on a belt with the sensor placed over the lumbar area and two Opal instrumented socks by APDM Wearable Technologies, a Clario company, placed on both feet) and will be instructed to sit for 30 s, then stand with feet together and look straight ahead for 60 s, walk at least 10 steps before turning 90 degrees, and take at least 5 steps to complete an L-shaped path, turn 180 degrees, walk back and finish an L-shaped path. The participants will perform 5 repetitions of an L-shape path continuously, and end with 30 s of quiet sitting. This instrumented L-shape mobility test can characterize multiple domains of balance (Objective balance and gait outcome measures collected at home with both virtual instrumented L-shape mobility test and daily-life mobility monitoring (7 days), divided by balance domains