C. Leblanc

TL;DR: It is concluded that the 3-day activity record is a procedure suitable to estimate energy expenditure in population studies and supports the hypothesis that mean energy expenditure per kg of body weight is significantly correlated with physical working capacity expressed per kgof body weight.

TL;DR: Although non-transmissible environmental factors remain the major determinants of these two physical activity indicators in this population, the results suggest that children can acquire from their parents certain customs regarding exercise behavior and that the propensity toward being spontaneously active could be partly influenced by the genotype.

TL;DR: Dizygotic twins and brothers of same sibship exhibited about the same level of resemblance for all variables or were only slightly different, with the exception of HR max, while monozygotic pairs were generally more alike than the other sibs, as suggested by the intra-class coefficients.

TL;DR: Study of genetic and 'cultural' transmission between generations of the body mass index, sum of six skinfold measurements, percentage of body fat, fat mass, fat-free mass, and two indicators of fat distribution consistently found that nongenetic influences are quite important in determining the amount and distribution of bodyfat in the population.

TL;DR: In general, subjects practicing vigorous activities on a regular basis had lower subcutaneous skinfold thicknesses and waist-to-hip ratios (WHRs) than those not performing these activities.