TABLE 2.

A validated acclimatization schedule for physically fit personnel to follow on arrival to a hot region reproduced from United Kingdom Defense policy on prevention of climatic illness and injury (Ministry of Defence, 2017).

Day	Dress	Target WBGT Index (°C WGBT)	Duration (min)	Activity
1	No activity. rest, eat, drink, and sleep (for 24 h)
2	T-shirt and shorts	26–30	1 × 50	Walk at 6 km/h (3.7 miles/h)
3	T-shirt and shorts	26–30	2 × 50	Walk at 6 km/h; rest for 15 min; resume walking.
4	T-shirt and shorts	26–30	100	Walk at 6 km/h
5	T-shirt, combat jacket, lightweight trousers, and body armor	26–30	2 × 50	Walk at 6 km/h for 50 min then remove body armor and jacket and rest for 15 min; resume walking.
6	T-shirt, combat jacket, lightweight trousers, and body armor	26–30	100	Walk at 6 km/h
7	T-shirt, combat jacket, lightweight trousers and body armor and webbing (10 kg)	26–30	2 × 50	Walk at 6 km/; remove webbing, rest for 15 min; resume walking.
8	T-shirt, combat jacket, lightweight trousers and body armor and webbing (10 kg)	26–30	100	Walk at 6 km/h
Personnel undertaking acclimatization should be allowed fluids as required