Effects of Rain on Energy Metabolism while Running in a Cold Environment

• Published in: International journal of sports medicine 2013-08, Vol.34 (8), p.707-711
• Main Authors: Ito, R., Nakano, M., Yamane, M., Amano, M., Matsumoto, T.
• Format: Article
• Language: English
• Subjects: Adult; Biological and medical sciences; Body Temperature - physiology; Cold Temperature; Energy Metabolism - physiology; Esophagus; Exercise Test - methods; Fundamental and applied biological sciences. Psychology; Heart Rate - physiology; Human physiology applied to population studies and life conditions. Human ecophysiology; Humans; Lactic Acid - blood; Male; Medical sciences; Norepinephrine - blood; Oxygen Consumption - physiology; Physical Exertion - physiology; Physiology & Biochemistry; Rain; Running - physiology; Skin; Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports; Young Adult
• ISSN: 0172-4622; 1439-3964
• DOI: 10.1055/s-0032-1331770

Abstract Environmental factors tend to influence the performance of individuals who exercise for extended periods. The present study aimed to determine energy metabolism while running in cold, wet conditions using a climatic chamber that can precisely simulate rainy conditions. 7 healthy men (age, 23.3±2.9 (SD) y; height, 168.6±7.5 cm; weight, 65.9±8.1 kg; V. O 2max , 52.0±5.7 mL·kg  − 1 ·min  − 1 ) ran on a treadmill at 70% ˙VO 2max intensity for 30 min in a climatic chamber at an ambient temperature of 5°C in the presence (RAIN) or absence (CON) of 40 mm/h of precipitation. Expired air, esophageal temperature, heart rate, mean skin temperature, rating of perceived exertion and blood samples were measured. Esophageal temperature and mean skin temperature were significantly lower (P