Fig. 2: Halo Movement application.
From: Validation of Amazon Halo Movement: a smartphone camera-based assessment of movement health

A Smartphone setup for starting Halo Movement assessment. The assessment is comprised of five activities: B single leg balance (10 s on each leg); C forward lunge (3 repetitions on each leg); D overhead squat (6 repetitions); E overhead reach (repeated 3 times); and F feet together squat (3 repetitions).