Table 3 Summary of measures
Data collection instrument | Time-points | |||
|---|---|---|---|---|
Baseline | 3 mths | 9 mths | ||
Descriptive data | ||||
Age, sex, body mass index, education level, current employment status | □ | |||
Duration of hip OA symptoms, laterality of symptoms | □ | |||
Comorbidities | Self-Administered Comorbidity Questionnaire | □ | ||
Radiographic disease severity | Standard supine AP pelvis x-ray | □ | ||
Expectation of treatment outcome | 5-point ordinal scale | □ | ||
Therapeutic alliancea | Working Alliance Inventory-Short Revised questionnaire | |||
Primary outcomes | ||||
Overall average hip pain in the past week | 11-point NRS | □ | □ | □ |
Physical function in past 48 h | WOMAC physical function subscale | □ | □ | □ |
Secondary outcomes | ||||
Pain | WOMAC pain subscale | □ | □ | □ |
Hip pain during walking, NRS | □ | □ | □ | |
Stiffness | WOMAC stiffness subscale | □ | □ | □ |
Perceived change since baseline | Change in pain, 7-point ordinal scale | □ | □ | |
Change in function, 7-point ordinal scale | □ | □ | ||
Health-related quality of life | AQoL-6D questionnaire | □ | □ | □ |
Muscle strength | Hip extensor strength | □ | □ | |
Hip abductor strength | □ | □ | ||
Knee extensor | □ | □ | ||
Physical function | Patient specific functional scale | □ | □ | □ |
30 s sit to stand | □ | □ | ||
Timed stair climb | □ | □ | ||
40 m fast walk | □ | □ | ||
Cardiorespiratory fitness | Submaximal cardiorespiratory fitness | □ | □ | |
Other measures | ||||
Adherence | Number of consultations with physiotherapist | □ | ||
Number of strength sessions at least “very hard”(RPE) | □ | |||
Number of activity minutes at minimum prescribed heart rate | □ | |||
Treatment fidelity | Number of exercise prescriptions according to protocol | □ | ||
Adverse events | Number and nature (related, non-related, severity) | □ | □ | |
Co-interventions | Number and type | □ | □ | □ |
Satisfaction with exercise programs | 11-point NRS | □ | ||
Mechanistic measures | Body composition (fat mass, lean mass) | □ | □ | |
Inflammatory makers (e.g. IL-6, TNF- α, CRP) | □ | □ | ||
Quantitative sensory measures (PPT, TS, CPM) | □ | □ | ||
Depression, anxiety, stress (DASS-21 subscale) | □ | □ | □ | |
Neuropathic pain (PainDETECT) | □ | □ | □ | |
Self-efficacy for walking (SEWS-D, mGES) | □ | □ | □ | |
Fear of movement (BFMS) | □ | □ | □ | |
Sleep quality (PSQI) | □ | □ | □ | |
Fatigue (MDAF) | □ | □ | □ | |