McArdle's Maximum Allowable sweat rate:-: (A) < 4.5 litre/4 hours, (B) < 3.0 litre/4 hours, (C) < 3.5 litre/4 hours, (D) < 5.0 litre/4 hours
Answer is A. McArdle's Index: - It is an index of thermal comfo. Max P4SR (Predictable 4 hour sweat rate): <4.5lit/4hours. Beyond this death of person is imminent.