Participant Characteristics Associated with Symptomatic Improvement from Yoga for Chronic Low Back Pain

Area of Science:

• Integrative medicine
• Rehabilitation medicine
• Pain management

Background:

• Yoga is recognized for its effectiveness in managing moderate to severe chronic low back pain (cLBP).
• Limited research exists on factors predicting positive outcomes from yoga interventions in diverse populations, particularly those with lower socioeconomic status.

Purpose of the Study:

• To identify baseline characteristics associated with enhanced efficacy of yoga for individuals with cLBP.
• To explore predictors of functional improvement and pain reduction in a yoga intervention study.

Main Methods:

• A 12-week randomized trial compared weekly versus twice-weekly hatha yoga classes for 95 adults with nonspecific cLBP.
• Baseline participant data were analyzed using bivariate testing and multivariate linear regression to identify predictors of outcome.
• Outcomes measured included changes in back-related function (modified Roland-Morris Disability Questionnaire) and pain intensity.

Main Results:

• Lower baseline SF36 physical component score (PCS) and foreign nationality were independently associated with greater improvement in back-related function (RMDQ).
• Higher education level, cLBP duration under one year, and lower baseline SF36 PCS were independently associated with greater improvement in pain intensity.
• Demographic factors such as race, income, gender, BMI, and pain medication use did not show independent associations with either outcome.

Conclusions:

• Poorer baseline physical health status is linked to greater functional and pain relief benefits from yoga in cLBP patients.
• Individual characteristics like race, income, and body mass index do not appear to limit the potential benefits of yoga for low back pain.
• These findings highlight the potential of yoga as a therapeutic option for diverse populations with cLBP.