NCT03414749

Extremity Manipulation Impact on Postural Sway Characteristics

Assessment of Balance Changes After Extremity Manipulation Therapy

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 25 (actual)
• Sponsor: Parker University · Academic / Other
• Sex: All
• Age: 21 Years – 40 Years
• Healthy volunteers: Accepted

Summary

This study will evaluate the multi-segmental postural sway after upper versus lower extremity manipulation.

Detailed description

The focus of this study is to explore the effect of upper and lower extremity chiropractic adjustments (manipulation) as well as surface condition (hard surface vs rocker board) on multisegmental postural control as represented by postural sway. Using a rocker (tilt) board, the participant cannot stand still, but has to adjust posture continuously to maintain balance. Body sways are considered to be self-induced because the design of the rocker board creates a natural instability without any external perturbation. This task provides a self-driven sensorimotor condition in addition to amplifying the sway dynamics. Because the rocker board has only one degree of freedom of motion, anteroposterior and lateral sways were considered separately on the device. The investigators had the following hypotheses. Hypothesis 1: Lower extremity adjustments will lead to reduced postural sway magnitude compared to upper extremity adjustments. Hypothesis 2: Lower extremity adjustments will reduce sway variability of the rocker board, trunk and head compared to upper extremity adjustments. Hypothesis 3: Lower extremity adjustments will facilitate the organization of sway behavior as assessed by the chaotic structure of sway.

Conditions

• Healthy

Interventions

Type	Name	Description
PROCEDURE	Lower Extremity First (LEF)	The intervention for the LEF group was a non-specific long-axis distraction to the ankle, knee, and hip or shoulder, elbow and wrist provided was at the discretion of the clinic doctor (over 25 years experience).
PROCEDURE	Upper Extremity First (UEF)	The intervention for the UEF group was a non-specific long-axis distraction to the shoulder, elbow and wrist provided was at the discretion of the clinic doctor (over 25 years experience).

Timeline

• Start date: 2017-07-24
• Primary completion: 2017-08-09
• Completion: 2017-08-09
• First posted: 2018-01-30
• Last updated: 2020-02-07

Locations

1 site across 1 country: United States