Work speed as a measure of an equivalent exercise stress in subjects of different weights Authors: Van Lingen B, Seaward PD, Odendaal WA. Source: Circulation. 1965; 32 no 6:940-947. Babalwa Jekwa2019-04-10T21:37:50+02:00Dec 31st, 1965| Share This Page, Choose Your Platform! FacebookTwitterLinkedInWhatsappEmail