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Table 2 Correlation analysis (r) between sleep index variables and mood state variables one week before the competition

From: Relationship between sleep quality, mood state, and performance of elite air-rifle shooters

Mood states variables (r) PSQI score Sleep quality Sleep time Total sleep time Sleep efficiency Sleep disorders Daytime function
Tension 0.616** 0.487** 0.520** 0.208 0.130 0.589** 0.448**
Anger 0.515** 0.444** 0.446** 0.124 0.009 0.471** 0.444**
Fatigue 0.523** 0.480** 0.300* 0.286* 0.213 0.300* 0.493**
Depression 0.613** 0.547** 0.511** 0.152 0.117 0.547** 0.474**
Energy − 0.504** − 0.470** − 0.337* − 0.111 − 0.098 − 0.307* − 0.595**
Panic 0.598** 0.411** 0.455** 0.197 0.123 0.628** 0.521**
Self-regard − 0.284* − 0.328* − 0.143 − 0.056 − 0.113 − 0.142 − 0.327*
TMD 0.669** 0.585** 0.500** 0.206 0.148 0.534** 0.605**
Cognitive anxiety 0.471** 0.390** 0.418** 0.175 0.165 0.502** 0.204
Somatic anxiety 0.585** 0.524** 0.512** 0.191 0.001 0.562** 0.426**
Confidence − 0.523** − 0.436** − 0.351** − 0.181 − 0.153 − 0.465** − 0.471**
  1. Significant correlation between sleep index variables and mood state variables
  2. *P < 0.05;**P < 0.01