Clinical trial NCT06534931: Effects of a Thoracic Manipulation on Hip Adductor, Extensor, and Latissimus Dorsi Force in Those With Adductor Weakness
Official title: Effects of a High Velocity Low Amplitude Mid-Thoracic Spinal Segment Manipulation on the Force Output of the Hip Adductors and Extensors and the Latissimus Dorsi in Healthy Individuals With Unilateral Hip Adductor Weakness
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Muscle Weakness
Lead sponsor: University of New England
Sponsor class: OTHER
Collaborators: name: Raymond Chiropractic
First posted: 2024-08-02
Enrollment: 40
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The goal of this trial was to determine if a mid-thoracic high velocity low amplitude spinal manipulation improves force output in those with unilateral hip adductor weakness. The main aims were to determine if the intervention:

Improved hip adductor force and muscle activation immediately and 48 h post manipulation compared to a control group.

Improved gluteus maximus and latissimus dorsi force and muscle activation immediately and 48 h post manipulation compared to a control group.

Strength and muscle activation of the hip adductors, hip extensors (gluteus maximus), and shoulder extensors (latissimus dorsi) were measured prior to, immediate after, and 48 hours after receiving a high velocity low amplitude manipulation to the thoracic spine. The manipulation was performed by a licensed chiropractor.

A control group received a validated sham manipulation to the thoracic spine. Participants were blinded to group assignment.


Eligibility criteria: Inclusion Criteria:

* Unilateral hip adductor weakness, as assessed by manual muscle testing
* Pain free hip motion
* No contraindications to high velocity thoracic spine manipulation including:

Any known active cancer/ Metastatic Bone Cancer Osteoporosis or other metabolic bone disorders Signs of spinal cord compression Nerve root compression with increasing neurologic deficit Signs of Vertebrobasilar insufficiency/ cervical artery abnormalities Bleeding Diatheses Angina pectoris

Exclusion Criteria:

* Current pain in the adductor muscle group
* Past history of hip surgery
* Past history of hip fracture
* History of spine or rib fractures
* Psoas muscle group (hip flexor) weakness as determined by manual muscle testing
* Received a chiropractic manipulation in past week

Primary outcomes:
measure: Hip adductor force (weak limb)
timeFrame: Pre intervention, immediatly post intervention, 48 hours post intervention
measure: Hip adductor muscle activity (weak limb)
timeFrame: Pre intervention, immediatly post intervention
Secondary outcomes:
measure: Hip extension force (strong limb)
timeFrame: Pre intervention, immediatly post intervention, 48 hours post intervention
measure: Gluteus maximus muscle activity (strong limb)
timeFrame: Pre intervention, immediatly post intervention
measure: Hip extension force (weak limb)
timeFrame: Pre intervention, immediatly post intervention, 48 hours post intervention
measure: Gluteus maximus muscle activity (weak limb)
timeFrame: Pre intervention, immediatly post intervention
measure: Shoulder extension force (weak limb)
timeFrame: Pre intervention, immediatly post intervention, 48 hours post intervention
measure: Latissimus dorsi muscle activity (weak limb)
timeFrame: Pre intervention, immediatly post intervention
measure: Shoulder extension force (strong limb)
timeFrame: Pre intervention, immediatly post intervention, 48 hours post intervention
measure: Latissimus dorsi muscle activity (strong limb)
timeFrame: Pre intervention, immediatly post intervention
measure: Hip adductor muscle activity (strong limb)
timeFrame: Pre intervention, immediatly post intervention
measure: Hip adductor force (strong limb)
timeFrame: Pre intervention, immediatly post intervention, 48 hours post intervention
Other outcomes:
Locations:
city: Portland
country: United States
facility: University of New England
state: Maine
Study officials:
References:
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