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
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 40
- 试验地点
- 2
- 主要终点
- Hip adductor muscle activity (weak limb)
研究概览
简要总结
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Participant)
盲法说明
Participants were unaware of the existence of a control group.
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •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
排除标准
- •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
结局指标
主要结局
Hip adductor muscle activity (weak limb)
时间窗: Pre intervention, immediatly post intervention
Mean muscle activity during isometric contraction. Measured with surface electrode and reported as a percentage of maximum activation.
Hip adductor force (weak limb)
时间窗: Pre intervention, immediatly post intervention, 48 hours post intervention
Isometric force produced by the hip adductors in the weaker limb. Measured with a force transducer and reported in Newtons.
次要结局
- Gluteus maximus muscle activity (strong limb)(Pre intervention, immediatly post intervention)
- Hip extension force (strong limb)(Pre intervention, immediatly post intervention, 48 hours post intervention)
- Hip extension force (weak limb)(Pre intervention, immediatly post intervention, 48 hours post intervention)
- Shoulder extension force (weak limb)(Pre intervention, immediatly post intervention, 48 hours post intervention)
- Latissimus dorsi muscle activity (weak limb)(Pre intervention, immediatly post intervention)
- Latissimus dorsi muscle activity (strong limb)(Pre intervention, immediatly post intervention)
- Shoulder extension force (strong limb)(Pre intervention, immediatly post intervention, 48 hours post intervention)
- Hip adductor muscle activity (strong limb)(Pre intervention, immediatly post intervention)
- Gluteus maximus muscle activity (weak limb)(Pre intervention, immediatly post intervention)
- Hip adductor force (strong limb)(Pre intervention, immediatly post intervention, 48 hours post intervention)
研究者
Michael Lawrence
Associate Teaching Professor
University of New England