Table 5 Bootstrap mediation effects and confidence intervals.

From: Analyzing the effect of physical exercise on subjective well-being of university students using the chain mediation model

Intermediary path

Efficiency value

Proportion of total effect

95% Confidence interval

Lower limit

Limit

Physical exercise → Mental toughness → Subjective well-being

0.073

39.03%

0.048

0.102

Physical exercise →Stress perception → Subjective well-being

0.036

19.25%

0.018

0.056

Physical exercise → Mental toughness → Stress perception → Subjective well-being

0.032

17.11%

0.019

0.049

Total indirect effect

0.140

74.87%

0.104

0.181

Direct effect

0.047

25.13%

0.002

0.092

Total effect

0.187

100.00%

0.131

0.244

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