Table 2. Descriptive Data, Including Baseline 
O2max and its Response to Training, for the Six Cohorts.
| HERITAGE Whites | HERITAGE Blacks | DREW | INFLAME | STRRIDE | MARYLAND | JYVASKYLA | |
| Maximum number of subjects | 473 | 250 | 326 | 70 | 303 | 160 | 105 |
| Age, yrs | 35.8 (14.5) | 33.6 (11.5) | 57.9 (6.5) | 51.2 (10) | 51.0 (7.7) | 58.0 (5.8) | 53.5 (7.6) |
| Baseline BMI, kg/m2 | 25.8 (4.9) | 27.8 (5.8) | 31.5 (3.9) | 31.1 (4.3) | 29.9 (2.9) | 28.3 (4.6) | 25.4 (3.1) |
Baseline O2max, mL/min |
2458 (740) | 2086 (629) | 1312 (240) | 1629 (567) | 2466 (694) | 2060 (536) | 2262 (616) |
Baseline O2max, mL/kg/min |
33.2 (8.9) | 27.3 (7.3) | 15.8 (2.5) | 19.0 (5.6) | 28.2 (6.0) | 25.3 (4.6) | 29.8 (6.2) |
 O2max response, mL/min |
395 (215) | 362 (171) | 108 (132) | 204 (213) | 281 (273) | 250 (228) | 259 (223) |
 O2max response, % |
16.9 (9.0) | 18.9 (10.3) | 8.7 (10.5) | 14.1 (13.5) | 12.0 (12.0) | 12.3 (10.1) | 13.0 (11.7) |
Values are given as mean (SD). 
O2max response = post-training 
O2max minus baseline 
O2max (positive value represents improvement in 
O2max).
All gains in VO2max are significant at p<0.05.