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Baseline characteristics of study participants (n = 1220).
| Characteristic | Mean (SD) or % |
|---|---|
| Age, years | 58.3 (16.0) |
| Sex, male, N (%) | 605 (49.6) |
| Race, white, N (%) | 806 (66.1) |
| BMI (kg/m2) | 26.6 (4.4) |
| Neuroticism | 46.8 (9.3) |
| Extraversion | 49.8 (10.1) |
| Openness | 53.4 (10.5) |
| Agreeableness | 50.4 (9.7) |
| Conscientiousness | 50.8 (10.5) |
| Knee muscle strength (Nm) | 129.3 (52.9) |
