“Two major causes of premature fatigue during exercise are dehydration and carbohydrate depletion.”

“He was wearing his snug army t-shirt, baggy fatigues, and combat boots.”

“The constant jumping up and dashing to and fro, the lifting and carrying of the heavy bottle, was for me a backbreaking fatigue.”

“It is because of my own indefatigability in talking about talk about talk that they made me a Knight.”

“Whatever else you made of him, when it came to delivering sustained barrages of political invective, you had to salute his indefatigability.”

“Yet somehow by the end, there's room for forgiveness and hope and and endorsement of the indefatigability of the human spirit.”

“If these changes were of sufficient magnitude, they would clearly be expected to increase muscle fatigability.”

“Physical activity, leg muscle fatigability, calf muscle flexibility, and leg volume also were measured at the start of the study.”

“Endotoxemia and sepsis also induce mitochondrial dysfunction, sarcolemmal injury, and weakness and fatigability of the diaphragm.”

“... but too much security on the republican part will give time to his talents and indefatigableness to extricate them.”

“In histories of Methodism, he often appears as a somewhat bureaucratic figure, admired for his diligence and indefatigableness rather than his brilliance.”