Training changes in VO2max among 10 pairs of MZ twins subjected to a standardized 20-week exercise training program.
Adapted from D. Prud’homme et al, 1984, “Sensitivity of maximal aerobic power to training is genotype dependent,” Medicine and Science in Sports and Exercise, 16: 489–493. Reproduced from Bouchard C, Dionne FT, Simoneau JA, Boulay MR. 1992, “Genetics of aerobic and anaerobic performances” Exercise and Sport Sciences Reviews 20:27–58 by permission from Wolters Kluwer Health.