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Table 4 Spearman correlation between the Pittsburgh Sleep Quality Index (PSQI) and health-related fitness

From: Subjective sleep quality and association with depression syndrome, chronic diseases and health-related physical fitness in the middle-aged and elderly

 

PSQI

r

p

Basic condition

 Age

.004

0.952

Depression

.491

0.000

Self-rate health

−.391

0.000

Chronic disease (Numbers)

0.200

0.001

Anthropometric index

 BMI

−.076

0.204

 FFMI

.001

0.987

 Waist / hip ratio

.011

0.857

Physical Fitness

Sit-and reach

−.131

0.028

 One-leg stand

−.080

0.179

Two-min steps

−.133

0.026

 Chair stand in 30s

−.158

0.080

 Grip muscle strength

−.105

0.195

Up-and-go

−.169

0.004

 Back muscle strength

−.100

0.096