caa a22 4500 469055286 CHVBK 20180323132842.0 cr unu---uuuuu 170328e19920501xx s 000 0 eng 10.1007/BF00626283 doi (NATIONALLICENCE)springer-10.1007/BF00626283 Influence of moderate cold exposure on blood lactate during incremental exercise [Elektronische Daten] [P. Flore, A. Therminarias, M. Oddou-Chirpaz, A. Quirion] Summary: This study examined the effect of exposure of the whole body to moderate cold on blood lactate produced during incremental exercise. Nine subjects were tested in a climatic chamber, the room temperature being controlled either at 30°C or at 10°C. The protocol consisted of exercise increasing in intensity in 35 W increments every 3 min until exhaustion. Oxygen consumption (VO2) was measured during the last minute of each exercise intensity. Blood samples were collected at rest and at exhaustion for the measurement of blood glucose, free fatty acid (FFA), noradrenaline (NA) and adrenaline (A) concentrations and, during the last 15 s of each exercise intensity, for the determination of blood lactate concentration [la−]b. TheVO2 was identical under both environments. At 10°C, as compared to 30°C, the lactate anaerobic threshold (Than, la −) occurred at an exercise intensity 15 W higher and [Than, la −]b was lower for submaximal intensities above the Than, la − Regardless of ambient temperature, glycaemia, A and NA concentrations were higher at exhaustion while FFA was unchanged. At exhaustion the NA concentration was greater at 10°C [15.60 (SEM 3.15) nmol·l−1] than at 30°C [8.64 (SEM 2.37) nmol·l−1]. We concluded that exposure to moderate cold influences the blood lactate produced during incremental exercise. These results suggested that vasoconstriction was partly responsible for the lower [la−]b observed for submaximal high intensities during severe cold exposure. Springer-Verlag, 1992 Cold nationallicence Exercise nationallicence Lactate nationallicence Catecholamines nationallicence Flore P. Laboratoire de Physiologie, Faculté de Médecine de Grenoble, 38700, La Tronche, France aut Therminarias A. Laboratoire de Physiologie, Faculté de Médecine de Grenoble, 38700, La Tronche, France aut Oddou-Chirpaz M. Laboratoire de Physiologie, Faculté de Médecine de Grenoble, 38700, La Tronche, France aut Quirion A. Université du Québec, Trois Rivières, Canada aut European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 64/3(1992-05-01), 213-217 0301-5548 64:3<213 1992 64 421 https://doi.org/10.1007/BF00626283 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00626283 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Flore P. Laboratoire de Physiologie, Faculté de Médecine de Grenoble, 38700, La Tronche, France aut NATIONALLICENCE 700 1- Therminarias A. Laboratoire de Physiologie, Faculté de Médecine de Grenoble, 38700, La Tronche, France aut NATIONALLICENCE 700 1- Oddou-Chirpaz M. Laboratoire de Physiologie, Faculté de Médecine de Grenoble, 38700, La Tronche, France aut NATIONALLICENCE 700 1- Quirion A. Université du Québec, Trois Rivières, Canada aut NATIONALLICENCE 773 0- European Journal of Applied Physiology and Occupational Physiology Springer-Verlag 64/3(1992-05-01), 213-217 0301-5548 64:3<213 1992 64 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer