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Table 1 Summary of measures to be collected.

From: Comparison of neuromuscular and quadriceps strengthening exercise in the treatment of varus malaligned knees with medial knee osteoarthritis: a randomised controlled trial protocol

Primary outcome measures Data collection instrument
External peak knee adduction moment (KAM) 3-dimensional gait analysis system and University of Western Australia (UWA) functional model
Average overall pain in past week 100 mm visual analogue scale
Physical function in past 48 hours WOMAC Osteoarthritis Index 3.1 Likert version physical function subscale
Secondary outcome measures  
KAM angular impulse 3-dimensional gait analysis system and (UWA) functional model
Pain and stiffness WOMAC Osteoarthritis Index 3.1 Likert version
Participant global rating of change overall and for pain and function 7-point ordinal scale
Muscle activation and co-contraction patterns Surface electromyography during walking
Hip and knee muscle strength Isometric knee flexors and extensors (isokinetic dynamometer), hip abductors and rotators (instrumented manual muscle tester), and hip extensors (force transducer).
Physical performance Single limb standing time (seconds)
  Step test
  Four square test
  Timed stair climb (ascent and descent)
  30 second sit-to-stand test
Health-related quality of life Assessment of Quality of Life Instrument version 2 (AQoL II)
Other measures  
Mechanical knee alignment X-ray (baseline)
Disease severity X-ray (baseline)
Physical activity levels Physical Activity Scale for the Elderly (PASE)
Adverse events Participant log-book (follow-up)
Adherence/Treatment session attendance Participant log-book (follow-up)
  Therapist treatment records (follow-up)
  1. All measures recorded at baseline and follow-up (week 13) unless otherwise stated.