TABLE 1.
Baseline Characteristics of Participants in Aerobics Centre Longitudinal Study, 1981-2006, by Thirds of Muscular Strength
| Characteristics | Muscular strength (thirds) |
P value for linear trend |
|||
|---|---|---|---|---|---|
| All (n=4681) |
Lower (n=1560) |
Middle (n=1559) |
Upper (n=1562) |
||
| Age (years) | 43.3 (9.5) | 43.7 (9.5) | 43.4 (9.4) | 42.9 (9.7) | .07 |
| Sex (male) | 4139 (88.4) | 1378 (88.3) | 1380 (88.5) | 1381 (88.4) | .99 |
| BMI (kg/m2) | 25.1 (3.3) | 25.8 (3.8) | 25.0 (3.2) | 24.5 (2.8) | <.001 |
| Current smokers status | 554 (11.8) | 204 (13.1) | 189 (12.1) | 161 (10.3) | .05 |
| Heavy alcohol drinking | 1131 (24.2) | 395 (25.3) | 399 (25.6) | 337 (21.6) | .01 |
| History of hypertension | 1024 (21.9) | 396 (25.4) | 318 (20.4) | 310 (19.9) | <.001 |
| History of hypercholesterolemia | 1071 (22.9) | 384 (24.6) | 359 (23.0) | 328 (21.0) | .05 |
| Abnormal ECG | 217 (4.6) | 70 (4.5) | 81 (5.2) | 66 (4.2) | .41 |
| Parental history of diabetes | 70 (1.5) | 23 (1.5) | 20 (1.3) | 27 (1.7) | .59 |
| Impaired fasting glucose | 1927 (41.2) | 681 (43.7) | 639 (41.0) | 607 (38.9) | .02 |
| Meeting the aerobic PA guidelines | 2112 (45.1) | 632 (40.5) | 680 (43.6) | 800 (51.2) | <.001 |
| Cardiorespiratory fitness (METs) | 12.5 (2.5) | 11.8 (2.4) | 12.4 (2.4) | 13.4 (2.5) | <.001 |
BMI = body mass index; ECG = electrocardiogram; PA = physical activity; METs = metabolic equivalent tasks
Data are presented in mean (SD) unless indicated as number (%).
Heavy alcohol drinking (defined as average intake of >7 drinks per week for women, and >14 drinks per week for men); personal history of hypertension (defined by blood pressure≥140/90 mmHg, or physician diagnosed hypertension), and hypercholesterolemia (defined by total cholesterol ≥240 mg/dl, or physician diagnosed hypercholesterolemia); parental history of diabetes (yes or no); meeting the aerobic PA guidelines (≥500 MET-min/week aerobic PA during leisure time in the three months before the examination).