Effects of a Thoracic Manipulation on Hip Adductor, Extensor, and Latissimus Dorsi Force in Those With Adductor Weakness

University of New England

Status: Completed

Conditions: Muscle Weakness

Treatments: Procedure: Sham; Procedure: High velocity low amplitude thoracic spine manipulation

Study type: Interventional

Funder types: Other

Identifiers

NCT06534931

ThoracicManip

Details and patient eligibility

About

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.

Enrollment: 40 patients

Sex: All

Ages: 18 to 65 years old

Volunteers: Accepts Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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40 participants in 2 patient groups

Manipulation

Experimental group

Description:

Those in the intervention group received a high velocity low amplitude manipulation to the mid-thoracic spine provided by a licensed chiropractor.

Treatment:

Procedure: High velocity low amplitude thoracic spine manipulation

Sham

Sham Comparator group

Description:

Those in the control group received a validated sham manipulation to the mid-thoracic spine. The sham manipulation was done so that there was minimal downward force applied to the spine.

Treatment:

Procedure: Sham