Table 1.
Descriptive Statistics for All Observations of Women and Men According to Age Group: Aerobics Center Longitudinal Study, 1974–2006a
| Variable | All Observations | Observations by Age Group, y
|
||||
|---|---|---|---|---|---|---|
| <40 | 40–49 | 50–59 | 60–69 | ≥70 | ||
| Women | ||||||
| No. of observations | 11 749 | 2214 | 4056 | 3633 | 1582 | 264 |
| Age, y | 48.3 (10.3) | 34.3 (4.4) | 44.6 (2.9) | 54.1 (2.8) | 63.3 (2.7) | 72.7 (2.7) |
| Height, cm | 164.3 (5.9) | 165.1 (6.1) | 164.6 (5.9) | 164.1 (5.8) | 163.3 (5.7) | 160.8 (5.7) |
| Weight, kg | 61.9 (10.0) | 60.3 (10.2) | 62.1 (10.4) | 62.6 (9.8) | 62.4 (9.0) | 60.3 (8.9) |
| BMI | 22.9 (3.4) | 22.1 (3.4) | 22.9 (3.5) | 23.2 (3.4) | 23.4 (3.3) | 23.3 (3.2) |
| CRF, METs | 10.0 (2.0) | 11.1 (2.1) | 10.4 (1.9) | 9.6 (1.8) | 8.8 (1.6) | 8.1 (1.5) |
| Maximal HR, %b | 102.3 (6.6) | 99.9 (5.3) | 101.9 (6.1) | 103.1 (6.7) | 104.9 (7.6) | 104.0 (8.7) |
| PAI, % of participantsc | ||||||
| 0 | 21.3 | 20.4 | 20.5 | 21.6 | 22.6 | 30.7 |
| 1 | 25.4 | 24.9 | 24.8 | 26.0 | 25.9 | 28.4 |
| 2 | 30.4 | 34.3 | 30.9 | 29.2 | 26.9 | 25.4 |
| 3 | 16.7 | 14.1 | 17.0 | 17.3 | 19.2 | 10.6 |
| 4 | 6.2 | 6.3 | 6.7 | 5.9 | 5.5 | 4.9 |
| Current smoker, % of participants | 5.5 | 9.4 | 6.1 | 4.1 | 2.8 | 1.1 |
|
| ||||||
| Men | ||||||
| No. of observations | 70 978 | 12 595 | 25 101 | 22 412 | 9041 | 1829 |
| Age, y | 49.0 (10.1) | 34.8 (3.8) | 44.7 (2.8) | 54.1 (2.8) | 63.4 (2.7) | 73.4 (3.5) |
| Height, cm | 179.0 (6.4) | 179.9 (6.6) | 179.5 (6.4) | 178.6 (6.2) | 177.5 (6.2) | 175.4 (6.3) |
| Weight, kg | 83.0 (12.0) | 82.9 (12.6) | 83.9 (12.1) | 83.5 (11.8) | 80.8 (10.9) | 75.8 (10.0) |
| BMI | 25.9 (3.3) | 25.6 (3.4) | 26.0 (3.3) | 26.1 (3.2) | 25.6 (3.0) | 24.6 (2.8) |
| CRF, METs | 12.3 (2.3) | 13.2 (2.4) | 12.7 (2.2) | 12.0 (2.1) | 11.2 (2.0) | 10.0 (1.9) |
| Maximal HR, %b | 103.0 (6.8) | 100.6 (5.4) | 102.4 (6.0) | 103.8 (6.9) | 105.3 (7.9) | 106.7 (9.3) |
| PAI, % of participantsc | ||||||
| 0 | 21.1 | 23.8 | 21.1 | 20.0 | 19.3 | 23.8 |
| 1 | 21.8 | 20.9 | 21.4 | 21.9 | 23.7 | 21.3 |
| 2 | 30.5 | 31.3 | 30.8 | 31.1 | 28.7 | 24.0 |
| 3 | 18.2 | 15.6 | 17.9 | 19.0 | 20.4 | 21.9 |
| 4 | 8.4 | 8.5 | 8.8 | 8.1 | 7.9 | 9.0 |
| Current smoker, % of participants | 11.7 | 16.3 | 13.3 | 10.6 | 5.1 | 3.4 |
Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); CRF, cardiorespiratory fitness; HR, heart rate; METs, metabolic equivalents; PAI, physical activity index.
Unless otherwise indicated, data are expressed as mean (SD).
Indicates percentage of age-adjusted maximal HR attained on the treadmill test (maximal HR on the treadmill test/age-predicted maximal HR [220 minus the age in years]).
A rating of 0 indicates no reported activities; 1, Participated in some other activity such as bicycling, swimming, racquet sports, and other strenuous sports but not walking or jogging; 2, walked or jogged up to 10 miles/wk; 3, walked or jogged between 10 and 20 miles/wk; 4, walked or jogged more than 20 miles/wk. Because of rounding, percentages may not total 100.