https://trainright.com/...E8b2ZYyZygfpHlhMJe94
"However, what we gathered in the lab on skiers was that even after a single week of training or racing in single digit temperatures all of the skiers in the study suffered a varying decrease in measures of expiratory volume (amount of air you can forcefully exhale), which could translate to a decrease in performance."
"However, what we gathered in the lab on skiers was that even after a single week of training or racing in single digit temperatures all of the skiers in the study suffered a varying decrease in measures of expiratory volume (amount of air you can forcefully exhale), which could translate to a decrease in performance."