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Aim

This study examines the reliability, agreement, and validity of digital weighing scales with MatScan for measuring limb loading asymmetry. Results show excellent intra- and interrater reliability, good agreement with MatScan, and significant area under receiver operating characteristic curve. The measurements obtained with digital weighing scales were valid and interchangeable with MatScan, making them suitable for clinical use.

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Aim

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  1. Reliability, agreement, and validity of digital weighing scale withMatScan in limb load measurement Senthil N. S. Kumar, MSc; Baharudin Omar, PhD; Ohnmar Htwe, MD; Leonard H. Joseph, MsPT; Jagannathan Krishnan, PhD; Ali Jafarzedah Esfehani, MD; Lee L. Min, BScPT (Hons)

  2. Aim • Investigate reliability, agreement, and validity of digital weighing scales (DWSs) with MatScan to measure limb loading asymmetry (LLA). • Relevance • If proven valid and reliable, DWSs could provide practitioners with an objective limb load measurement tool suitable for everyday clinical practice.

  3. Method • Cross-sectional study with 33 nondisabled participants. • Weight distribution and plantar pressure on individual lower limb were measured using two DWSs (A, B) and MatScan during eyes open (EO) and eyes closed (EC) conditions.

  4. Results • Intra- and interrater reliability: • Excellent within and between DWSs A and B. • Bland-Altman plot: • Good agreement between DWS and MatScan in EO and EC conditions. • Area under receiver operating characteristic curve: • Significant.

  5. Conclusion • Measurements obtained with DWSs were valid and agreed with MatScan measurements. • DWSs could be used interchangeably with MatScan and could provide clinicians an objective measurement of limb loading suitable for clinical settings.

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