Table 2.
Descriptive statistics and Pearson correlation coefficients between age, general health, perceived stress, mental toughness, and sleep disturbances for the whole group and separately for heavy and light exercisers.
| Age | GHQ | PSS | MT | PSQI | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dimensions | T | HE | LE | T | HE | LE | T | HE | LE | T | HE | LE | T | HE | LE |
| Age | - | - | - | 0.31 ** | 0.50 *** | 0.05 | 0.02 | −0.13 | 0.14 | −0.26 ** | −0.36 *** | −0.17 | 0.25 ** | 0.54 *** | −0.08 |
| GHQ | - | - | - | - | - | - | −0.03 | 0.43 *** | 0.23 | −0.09 | −0.29 ** | 0.12 | 0.64 *** | 0.67 *** | 0.69 *** |
| PSS | - | - | - | - | - | - | - | - | - | −0.26 ** | −0.17 * | −0.24 ** | −0.09 | 0.22 ** | 0.06 |
| MT | - | - | - | - | - | - | - | - | - | - | - | - | −0.11 | −0.31 *** | 0.11 |
| PSQI | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| M | 35.17 | 35.17 | 34.35 | 20.52 | 21.82 | 19.21 | 34.57 | 36.06 | 33.09 | 31.30 | 32.51 | 30.09 | 4.81 | 4.54 | 5.07 |
| SD | (13.48) | (12.93) | (13.58) | 19.62 | 12.59 | 8.05 | 4.93 | 4.17 | 5.20 | 5.98 | 5.57 | 6.16 | 2.52 | 2.48 | 2.54 |
Notes: * = p < 0.05; ** = p < 0.01; *** = p < 0.001; T = total sample; HE = heavy exercisers; LE = light exercisers; GHQ = general health questionnaire; higher scores reflect a more impaired health; PSS = perceived stress scale; a higher score reflects a higher perceived stress; MT = mental toughness; a higher score reflects a more pronounced mental toughness; PSQI = Pittsburgh sleep quality index; a higher score reflects a more disturbed sleep. M = mean; SD = standard deviation.