iPhone Sensors in Tracking Outcome Variables of the 30-Second Chair Stand Test and Stair Climb Test to Evaluate Disability: Cross-Sectional Pilot Study.
Gautam AdusumilliSolomon Eben JosephMichael A SamaanBrooke SchultzTijana PopovicRichard B SouzaSharmila MajumdarPublished in: JMIR mHealth and uHealth (2017)
App-based performance testing of the 30-second Chair Stand Test and Stair Climb Test is valid and reliable, suggesting its applicability to future, larger-scale studies in the osteoarthritis patient population.