All Studies · Pain & Somatic Conditions · Vazquez-Vandyck (2007)

Vazquez-Vandyck (2007)

Low · Pre-Post/Single-Arm Trial · Preliminary (Pre-Post/Single-Arm) · n = 21
Quality Index (Adjusted QI) 0.678
0 Low < 0.56 Moderate 0.56–0.77 High ≥ 0.78 1
Study Details
ConditionHepatitis C + metabolic
Clinical domainPain & Somatic Conditions
PopulationHepatitis C with insulin resistance
Sample sizen = 21
Country / SettingMexico - hepatitis C treatment program
Protocol clusterGeneral/Varied KY
Duration6 months; 1-hour Breathwalking sessions 3x/week; assessed at baseline, 3 months, 6 months
Control type—
ComparatorN/A - No control group
Outcomes & Effect Sizes
Primary outcomeMetabolic/GI outcomes
Scales usedMetabolic markers; mood; body composition
Key resultMetabolic improvements; mood increased; body composition improved
Effect sized = 0.38 (metabolic markers); small effect
ES value0.38 (d)
Retention86% (18/21 completed)
SafetyNo adverse events; safe in chronic infection
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Methodological Summary

Pilot; infectious disease + metabolic; small sample

KY Protocol Components

Breathwalking for Chronic Hepatitis C Patients TECHNIQUE: Breathwalking (BW) — NOT traditional KY class format. DESIGN: Uncontrolled pre-post study. POPULATION: N=17 chronic HCV patients (11F/6M, mean age 51); serological + molecular (PCR) diagnosis; not receiving interferon. SETTING: Civil Hospital of Guadalajara, Mexico. DURATION: 6-month program. BREATHWALKING: A Kundalini Yoga-derived walking/breathing exercise program (specific technique details referenced in paper). OUTCOMES: • Body composition: In Body 3.0 (BMI, fat %, muscle, waist circumference, fitness score) • Mood assessment: Interview with two questionnaires (negative/positive mood states) • Measured at baseline, 3 months, and 6 months • Results: Significant improvements in BMI, fat %, waist circumference, fitness score NOTE: This is a Kundalini Yoga-derived breathwalking intervention, not a standard KY class program. Published in World J Gastroenterol. Focuses on body composition and mood in chronic HCV, not GI symptoms per se.

Quality Item Scores — 1 fail · 2 partial · 3 pass · ★ critical
★A1
2
A2
3
★B1
2
★B2
2
B3
3
B4
1
★B5
1
B6
2
★B7
1
★B8
3
B9
2
★D1
2
D2
2
JP1
3
Critical fails2
Raw QI0.690
SAF0.983
Adjusted QI0.678
Final ratingLow