“…The palms-forward pull-up is more difficult to perform than the palms-facing chin-up (Gabbard, Patterson, & Elledge, 1981;Piscopo, 1974). The National Children and Youth Fitness Study (Phase I, 1985) used the chin-up in the fitness testing part of this vast normative survey in which they tested over 8,000 boys and girls, age 10 through 18.…”