NCT04664842

Brief Summary

Chronic neck pain is a commonly reported problem and often associated with functional disability. Studies showed that patients with chronic neck pain compensated with changes in breathing pattern. Primary functions of the diaphragm includes as the main respiratory muscle and contributing to the postural stability and spinal control. Diaphragm is located between the thorax and abdomen and has extensive and complex fascial connections to surrounding organs, muscles, and skeletons. Few studies showed that applying diaphragmatic manual techniques and breathing exercise training help to improve functions in patients with low back pain. However, how does the interventions directly influence on patients with chronic neck pain is still unclear. In this study, we make a hypothesis that diaphragmatic stretch technique and breathing exercise training help to reduce pain and improve functions in patients with chronic neck pain.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
126

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2020

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2020

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

September 4, 2020

Completed
3 months until next milestone

First Posted

Study publicly available on registry

December 11, 2020

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 15, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 15, 2021

Completed
Last Updated

May 3, 2023

Status Verified

May 1, 2023

Enrollment Period

1.1 years

First QC Date

September 4, 2020

Last Update Submit

May 1, 2023

Conditions

Keywords

UltrasonographyDiaphragmBreathing exerciseBreathing dysfunction

Outcome Measures

Primary Outcomes (1)

  • Pain Intensity

    Visual Analog Scale: Minimum value = 0 (Best outcome); Maximum value = 10 (Worst Outcome)

    Change from baseline pain intensity up to 2 weeks

Secondary Outcomes (1)

  • Functional Disability

    Change from baseline functional disability up to 2 weeks

Other Outcomes (8)

  • Neck and Thoracic ROM

    Change from baseline neck and thoracic ROM up to 2 weeks

  • Neck Muscle Endurance

    Change from baseline neck muscle endurance up to 2 weeks

  • Neck Muscle Strength

    Change from baseline neck muscle strength up to 2 weeks

  • +5 more other outcomes

Study Arms (5)

Manual Therapy Group

EXPERIMENTAL
Other: Diaphragmatic Stretch Technique

Manual Control Group

SHAM COMPARATOR
Other: Diaphragmatic Stretch Technique

Breathing Training Group

EXPERIMENTAL
Other: Breathing Exercise Training

General Exercise Control Group

SHAM COMPARATOR
Other: Breathing Exercise Training

Manual Therapy Combined Breathing Training Group

EXPERIMENTAL
Other: Diaphragmatic Stretch TechniqueOther: Breathing Exercise Training

Interventions

Diaphragmatic stretch technique is an intervention intended to indirectly stretch the diaphragmatic muscle fibers. This will help to decease tension generated by trigger points, normalizing muscle fiber length, and improve muscle contraction.

Manual Control GroupManual Therapy Combined Breathing Training GroupManual Therapy Group

During diaphragmatic or abdominal breathing training, inhalation will caused diaphragm contract downwards, inflating the lungs. This filling of the lungs pushes the abdominal organs down leading to expansion of the abdomen. Subjects are required to do few repetitions during the intervention.

Breathing Training GroupGeneral Exercise Control GroupManual Therapy Combined Breathing Training Group

Eligibility Criteria

Age20 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Chronic or recurrent neck pain from upper cervical to T1 area
  • Condition last for 3 months and above

You may not qualify if:

  • Acute neck pain
  • Previous neck, shoulder or thoracic surgery
  • Neurological disease
  • Cardiopulmonary disease(Eg. Chronic obstructive pulmonary disease (COPD), pulmonary tuberculosis (TB), asthma, chronic bronchitis, pulmonary emphysema)
  • Smoking
  • Pregnancy
  • Tumour
  • Psychological disease
  • Neuromuscular disease
  • Back pain
  • Anaemia or Diabetes
  • Neck rehabilitation for past 12 month
  • Scoliosis or other diseases that cause spine and chest deformity
  • BMI \> 30

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Cheng Kung University

Tainan, East District, 701, Taiwan

Location

Related Publications (1)

  • Cheng KC, Hii EYX, Lin YN, Kuo YL, Tsai YJ. Effects of manual diaphragm release on pain, disability and diaphragm function in patients with chronic neck pain: a pilot randomized controlled trial. BMC Complement Med Ther. 2025 Oct 1;25(1):349. doi: 10.1186/s12906-025-05090-8.

MeSH Terms

Interventions

Breathing Exercises

Intervention Hierarchy (Ancestors)

Mind-Body TherapiesComplementary TherapiesTherapeuticsExercise Movement TechniquesPhysical Therapy Modalities

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

September 4, 2020

First Posted

December 11, 2020

Study Start

August 1, 2020

Primary Completion

September 15, 2021

Study Completion

September 15, 2021

Last Updated

May 3, 2023

Record last verified: 2023-05

Locations