Yan Wen^1,2, Tanvi Verma²*, Jonathan P. Whitehead^2,3 and Paul Lee^1,2,4

¹ School of Computer Science, University of Lincoln, Brayford Pool, Lincoln LN6 7TS, UK;
² MSK Doctors, MSK House, London Road, Silk Willoughby, Sleaford NG34 8NY, UK;
³ RKEU Psychology, Health & Wellbeing, Bishop Grosseteste University, Longdales Road, Lincoln LN1 3DY, UK
⁴ United Lincolnshire Teaching Hospitals NHS Trust, 101 Manthorpe Rd, Grantham NG31 8DG, UK

This study provides evidence supporting the use of a three-repetition protocol for STS movement, as analysed by the 3D MAI Motion markerless motion capture platform. From a practical perspective, reducing repetitions from five to three can improve time-efficiency, reduce participant burden, and enhance protocol adherence. Overall, these comparisons indicate that the results generated from 3 repetitions are equivalent to, or even superior to, the results from 5 repetitions.