Trial reportScientific reports2020
The effect on clinical outcomes when targeting spinal manipulation at stiffness or pain sensitivity: a randomized trial.
Trial report in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05986370 (The METRIC Study Protocol), which is not on this map. Cited by 22 papers, 4 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
The METRIC Study Protocol: an Explanatory Randomized Controlled Trial Investigating the Neurophysiological Mechanisms Underlying the Therapeutic Effects of Spinal Manipulative Therapy for Chronic Primary Low Back Pain
Who cites it
22 citing papers in PubMed, 4 syntheses or guidelines pooled it, 37 citations in OpenAlex.
- Baseline individual factors associated with clinical outcomes in adults with non-specific low back pain following manual therapy: a systematic review.BMC complementary medicine and therapies · 2025Pooled it
- Systematic review on biomechanical effects of high-velocity, low amplitude spinal manipulation.PloS one · 2025Pooled it
- Impact of audible pops associated with spinal manipulation on perceived pain: a systematic review.Chiropractic & manual therapies · 2022Pooled it
- The importance of selecting the correct site to apply spinal manipulation when treating spinal pain: Myth or reality? A systematic review.Scientific reports · 2021Pooled it
- Immediate effects of upper cervical spinal manipulation on cervical sensorimotor control in individuals with chronic primary cervical pain: an exploratory randomized controlled trial.Chiropractic & manual therapies · 2026Trial
- One spinal manipulation session reduces local pain sensitivity but does not affect postural stability in individuals with chronic low back pain: a randomised, placebo-controlled trial.Chiropractic & manual therapies · 2024Trial
- Exploring the immediate and short-term effect of lumbar spinal manipulation on pressure pain threshold: a randomized controlled trial of healthy participants.Chiropractic & manual therapies · 2024Trial
- Spinal manipulation and modulation of pain sensitivity in persistent low back pain: a secondary cluster analysis of a randomized trial.Chiropractic & manual therapies · 2021Trial
- Changes in pain sensitivity and spinal stiffness in relation to responder status following spinal manipulative therapy in chronic low Back pain: a secondary explorative analysis of a randomized trial.BMC musculoskeletal disorders · 2021Trial
- From mechanotransduction to manual therapy: advances in piezo/TRP channels and lumbar degeneration.Frontiers in physiology · 2026Review
- Technologies to investigate the mechanisms of force-based manipulations: a narrative methods review.Frontiers in pain research (Lausanne, Switzerland) · 2026Review
- "The Dark Side of Musculoskeletal Care": Why Do Ineffective Techniques Seem to Work? A Comprehensive Review of Complementary and Alternative Therapies.Biomedicines · 2025Review
- Middle East Pain Registry (MEPAIN): Feasibility Study of Chronic Pain Registry and Pilot Phase Results : Middle East Pain Registry (MEPAIN).Galen medical journal · 2025Article
- Waste not, want not: call to action for spinal manipulative therapy researchers.Chiropractic & manual therapies · 2024Article
- Article
- Current Concept of Quantitative Sensory Testing and Pressure Pain Threshold in Neck/Shoulder and Low Back Pain.Healthcare (Basel, Switzerland) · 2022Review
- Pressure pain thresholds in a real-world chiropractic setting: topography, changes after treatment, and clinical relevance?Chiropractic & manual therapies · 2022Article
- Prevalence of Chiropractic-Specific Terminology on Chiropractors' Websites in the United Kingdom With Comparison to Australia: An Analysis of Samples.Journal of chiropractic humanities · 2021Article
- A cross-sectional analysis of persistent low back pain, using correlations between lumbar stiffness, pressure pain threshold, and heat pain threshold.Chiropractic & manual therapies · 2021Article
- A consensus approach toward the standardization of spinal stiffness measurement using a loaded rolling wheel device: results of a Delphi study.BMC musculoskeletal disorders · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The mechanisms underlying pain relief following spinal manipulative therapy (SMT) are not understood fully although biomechanical and neurophysiological processes have been proposed. As such, we designed this randomized trial to elucidate the contributions of biomechanical and neurophysiological processes. A total of 132 participants with low back pain were randomly assigned to receive SMT at either the lumbar segment measured as the stiffest or the segment measured as having the lowest pain threshold. The primary outcome was patient reported low back pain intensity following treatment. Secondary outcomes were biomechanical stiffness and neurophysiological pressure pain threshold. All outcomes were measured at baseline, after the fourth and final session and at 2-weeks follow-up. Data were analyzed using linear mixed models, and demonstrated that the SMT application site did not influence patient reported low back pain intensity or stiffness. However, a large and significant difference in pressure pain threshold was observed between groups. This study provides support that SMT impacts neurophysiological parameters through a segment-dependent neurological reflex pathway, although this do not seem to be a proxy for improvement. This study was limited by the assumption that the applied treatment was sufficient to impact the primary outcome.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.