John Ward1, Ken Sorrels2, Jesse Coats3, Amir Pourmoghaddam4, Carlos Deleon5, Paige Daigneault5. 1. Associate Professor/Research Fellow, Department of Physiology and Chemistry, Texas Chiropractic College. 2. Professor, Department of Technique, Principles and Therapeutics, Texas Chiropractic College. 3. Professor, Chairman, Department of Clinical Specialties, Texas Chiropractic College. 4. Memorial Bone & Joint Clinic Researcher. 5. TCC graduate student assistant.
Abstract
PURPOSE: The purpose of this study was to pilot test our study procedures and estimate parameters for sample size calculations for a randomized controlled trial to determine if bilateral sacroiliac (SI) joint manipulation affects specific gait parameters in asymptomatic individuals with a leg length inequality (LLI). METHODS:Twenty-one asymptomatic chiropractic students engaged in a baseline 90-second walking kinematic analysis using infrared Vicon® cameras. Following this, participants underwent a functional LLI test. Upon examination participants were classified as: left short leg, right short leg, or no short leg. Half of the participants in each short leg group were then randomized to receive bilateral corrective SI joint chiropractic manipulative therapy (CMT). All participants then underwent another 90-second gait analysis. Pre- versus post-intervention gait data were then analyzed within treatment groups by an individual who was blinded to participant group status. For the primary analysis, all p-values were corrected for multiple comparisons using the Bonferroni method. RESULTS: Within groups, no differences in measured gait parameters were statistically significant after correcting for multiple comparisons. CONCLUSIONS: The protocol of this study was acceptable to all subjects who were invited to participate. No participants refused randomization. Based on the data collected, we estimated that a larger main study would require 34 participants in each comparison group to detect a moderate effect size.
RCT Entities:
PURPOSE: The purpose of this study was to pilot test our study procedures and estimate parameters for sample size calculations for a randomized controlled trial to determine if bilateral sacroiliac (SI) joint manipulation affects specific gait parameters in asymptomatic individuals with a leg length inequality (LLI). METHODS: Twenty-one asymptomatic chiropractic students engaged in a baseline 90-second walking kinematic analysis using infrared Vicon® cameras. Following this, participants underwent a functional LLI test. Upon examination participants were classified as: left short leg, right short leg, or no short leg. Half of the participants in each short leg group were then randomized to receive bilateral corrective SI joint chiropractic manipulative therapy (CMT). All participants then underwent another 90-second gait analysis. Pre- versus post-intervention gait data were then analyzed within treatment groups by an individual who was blinded to participant group status. For the primary analysis, all p-values were corrected for multiple comparisons using the Bonferroni method. RESULTS: Within groups, no differences in measured gait parameters were statistically significant after correcting for multiple comparisons. CONCLUSIONS: The protocol of this study was acceptable to all subjects who were invited to participate. No participants refused randomization. Based on the data collected, we estimated that a larger main study would require 34 participants in each comparison group to detect a moderate effect size.
Entities:
Keywords:
biomechanics; chiropractic; drop table technique; gait; locomotion; manipulation; randomization
Authors: Ugo H Buzzi; Nicholas Stergiou; Max J Kurz; Patricia A Hageman; Jack Heidel Journal: Clin Biomech (Bristol, Avon) Date: 2003-06 Impact factor: 2.063
Authors: Weronika Grabowska; Wren Burton; Matthew H Kowalski; Robert Vining; Cynthia R Long; Anthony Lisi; Jeffrey M Hausdorff; Brad Manor; Dennis Muñoz-Vergara; Peter M Wayne Journal: BMC Musculoskelet Disord Date: 2022-09-05 Impact factor: 2.562