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Percentage loss in body mass predicted from sweat rate for 60 and 80 kg runners of average ability a during 5 km (25 min), 10 km (60 min), 21 km (130 min), and 42 km (270 min) and competitive ability b during 5 km (21 min), 10 km (43 min), 21 km (95 min), and 42 km (200 min) road races. The dotted line demarks 2% body mass loss. Losses assume no fluid intake.
Adapted from Kenefick and Cheuvront [49]
