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Table 3 Characteristics that will be extracted from included studies

From: Neuromuscular adaptations to experimentally induced pain in the lumbar region: protocol for a systematic review and meta-analysis

Identification features of the report Authors
Source (e.g. journal article, conference abstract)
Population Sample size
Height, weight, body mass index
Randomisation details and arm group characteristics (crossover design only)
Intervention Experimental pain model/s adopted
Intervention characteristics (e.g. type, dosage, method)
Body region stimulated (anatomical structure and location, unilateral or bilateral stimulation)
Average and highest level of pain experienced (VAS or NRS)
Duration of pain symptoms
Qualitative description of pain (e.g. McGill Pain Questionnaire)
Perceived location and distribution of pain symptoms (including referred pain)
Potential confounders to the intervention effect (NRSI only)
Deviations from intended intervention
Time window between interventions
Comparator No intervention (baseline condition) or control intervention
Typology of control intervention
Level of pain induced with the control intervention (minimal versus not at all)
Duration of pain symptoms (if experienced)
Assessment of the POST-PAIN condition
Time window between PAIN and POST-PAIN condition
Outcomes Outcome domain
Outcome measure
Measurement tool
Body region/muscle investigated (including all spinal regions and limbs)
Design Randomised trial (crossover) or NRSI (repeated measure)
Time point assessments, including their order and time in between (e.g. wash-out period)