Research that doesn't stay on the page.
Dr Jo Abbott's doctoral research examines musculoskeletal assessment as a measurement process — and everything it finds flows somewhere: into education, into clinical reasoning, and ultimately into patient care. This page is the research; HODA-A™ is its translation.
From hands-on assessment to perceptual measurement.
Three principles anchor the work — and each one challenges how manual assessment has traditionally been tested.
Validity before reliability. Agreement between clinicians is difficult to interpret until we clarify what is being measured, by whom, through which mechanisms, under what conditions.
Calibration before conclusion. If the assessor is unstable, studies may be measuring variability in the clinician — not only the tissue.
Perception as data. Touch and observation are not neutral windows onto the body; they are perceptual processes that shape the findings they produce.
The research, presented in full.
Dr Jo presents the case for treating hands-on assessment as a measurement process — the thinking that underpins the HODA-A™ framework and the Certification Pathway.
Research → Education → Clinical reasoning → Patient care.
These are not separate areas of Dr Jo's work. They are one pipeline.
The science is done properly
PhD-level investigation of hands-on assessment as measurement: constructs defined, assessors calibrated, contexts controlled, claims tested with precision.
Findings become training
The research architecture becomes the HODA-A™ curriculum — the Eight Measurement Theories, the laboratories, the Reflective Recursive Loop — delivered through guided certification programmes.
Training changes thinking
Certified clinicians reason differently: they know what their assessment measures, where their perception drifts, and how to qualify their findings honestly.
Patients feel the difference
More defensible findings, fewer overconfident conclusions, and clinicians who treat their own perception with the same care they give the patient in front of them.
Four stages, applied to every question.
Define the construct
Clarify exactly what a hands-on assessment claims to measure before testing it.
Calibrate the assessor
Stabilise the clinician's sensory and perceptual system — the instrument itself.
Control the context
Identify the conditions and variables that affect how clinical data is acquired.
Test with precision
Build validity and reliability frameworks worthy of the claims being made.
The research is live. You can be part of it.
Global Back Pain Research Initiative
For people living with back pain: share your experience and help shape future support and clinical understanding.
4-Minute Survey for Bodyworkers
For clinicians and bodyworkers: a brief survey on MSK screening, clinical perception and hands-on assessment.
Clinical Retrospective Study
Examining musculoskeletal presentations, assessment findings and clinical reasoning in real-world practice.
Eighteen studies and counting.
The evidence base spans palpatory and observation-based MSK screening, tester rotation and agreement, the HODA-A™ measurement theories, sensorimotor memory stimulation, 3D motion-capture validation, single-subject pain studies, fire-service injury prevention and more — including a systematic review of HODA-A™ itself.