Krause-Sorio (2022)
Quality Index (Adjusted QI) 0.733
0 Low < 0.56 Moderate 0.56–0.77 High ≥ 0.78 1
Study Details
ConditionSubjective cognitive decline + AD risk
Clinical domainCognition & Neurodegeneration
PopulationWomen with SCD + CVD risk
Sample sizen = 22
Country / SettingSweden (primary health care centre)
Protocol clusterKirtan Kriya (12-min)
Duration12 weeks, 60 min/week + daily 12-min Kirtan Kriya
Control typeActive Control
ComparatorMemory Enhancement Training
Outcomes & Effect Sizes
Primary outcomeBrain structure (MRI)
Scales usedMRI; gray matter analysis; inflammatory markers
Key resultGray matter preserved; inflammation decreased
Effect sized = 0.45 (gray matter preservation); small-moderate
ES value0.45 (d)
Retention100% (22/22 completed both arms)
SafetyNo adverse events reported
Methodological Summary
Randomized; neuroimaging primary outcome; medium sample
KY Protocol Components
Kirtan Kriya: 12-minute singing meditation using mantra "Sa-Ta-Na-Ma" with finger movements (thumb touches index, middle, ring, pinky sequentially). Structure: 2 min aloud → 2 min whisper → 4 min silent → 2 min whisper → 2 min aloud. STUDY-SPECIFIC: Dementia caregivers mechanisms study; inflammatory markers, stress hormones, biological pathways.
Quality Item Scores — 1 fail · 2 partial · 3 pass · ★ critical
★A1
3
A2
3
★B1
2
★B2
2
B3
3
B4
2
★B5
2
B6
2
★B7
2
★B8
3
B9
2
★C1
2
C2
1
C3
1
JP1
3
Critical fails0
Raw QI0.733
SAF1
Adjusted QI0.733
Final ratingModerate