Psychological Context Effects

Psychological Context Effects of Participant Expectation on Pain Pressure Thresholds Following Cervicothoracic HVLA Thrust Manipulation: A Double Blind, Crossover, Randomised Controlled Trial

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03855254

Enrollment

Registered

2019-02-26

Start date

2018-09-01

Completion date

2019-01-10

Last updated

2019-02-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Control Condition, Negative Communication, Positive Communication (Primary)

Keywords

Contextual effects

Brief summary

This study explores how contextual effects in the fore of positive and negative communication can affect the effect of an osteopathic technique on pain pressure thresholds.

Interventions

BEHAVIORALcommunication type

Positive and negative communication types are the way that the practitioner communicates to the participant about the potential effectiveness of the osteopathic treatment. The control is a neutral communication condition.

Study design

Allocation

RANDOMIZED

Intervention model

CROSSOVER

Primary purpose

BASIC_SCIENCE

Masking

TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Health volunteers with no forms of existing pain.

Exclusion criteria

* Participants with existing pain.

Design outcomes

Primary

Measure	Time frame	Description
Pain pressure threshold	6 months	This is the degree to which the participant can tolerate pressure induced through an algometer.

Countries

United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026