PMID- 31079551
OWN - NLM
STAT- MEDLINE
DCOM- 20200803
LR  - 20200803
IS  - 1536-7290 (Electronic)
IS  - 1536-7290 (Linking)
VI  - 20
IP  - 1
DP  - 2020 Feb
TI  - Ambient temperature influences metabolic substrate oxidation curves during 
      running and cycling in healthy men.
PG  - 90-99
LID - 10.1080/17461391.2019.1612949 [doi]
AB  - Fat oxidation in cold environments and carbohydrate (CHO) use in hot environments 
      are increased during exercise at steady-state submaximal workloads. However, the 
      influence of cold and heat on fat and CHO oxidation curves remain unknown. We 
      therefore examined the influence of a cold and warm ambient temperature on fat 
      and CHO oxidation across a wide range of exercise intensities during treadmill 
      and cycle ergometer exercise. Nine, young, healthy, male subjects completed four 
      trials, during which they performed an incremental peak oxygen consumption 
      (⩒O(2peak)) test on a cycle ergometer or treadmill in a 4.6 degrees C or 34.1 degrees C 
      environment. Substrate oxidation, maximal fat oxidation rate (MFO), and exercise 
      intensity where MFO occurs (Fat(max)) were assessed via indirect calorimetry. MFO 
      was significantly greater in the cold vs. warm during the treadmill exercise 
      (0.66 +/- 0.31 vs. 0.43 +/- 0.23 g min(-1); p = 0.02) but not during cycling 
      (0.45 +/- 0.24 vs. 0.29 +/- 0.11 g min(-1); p = 0.076). MFO was also greater during 
      treadmill vs. cycling exercise, irrespective of ambient temperature 
      (0.57 g min(-1) vs. 0.37 g min(-1); p = 0.04). Fat(max) was greater in the cold 
      vs. warm for both treadmill (57 +/- 20 vs. 37 +/- 17%⩒O(2peak); p = 0.025) and 
      cycling (62 +/- 28 vs. 36 +/- 13%⩒O(2peak); p = 0.003). Multiple, linear, 
      mixed-effects regressions revealed a strong influence of ambient temperature on 
      substrate oxidation. We demonstrated that exercising in a cold environment 
      increases MFO and Fat(max), predominantly during treadmill exercise. These 
      results validate the implication of ambient temperature on energy metabolism over 
      a wide range of exercise intensities.
FAU - Gagnon, Dominique D
AU  - Gagnon DD
AD  - Laboratory of Environmental Exercise Physiology, School of Human Kinetics, 
      Laurentian University, Sudbury, Canada.
AD  - Center of Research in Occupational Health and Safety, Laurentian University, 
      Sudbury, Canada.
FAU - Perrier, Lina
AU  - Perrier L
AD  - Laboratory of Environmental Exercise Physiology, School of Human Kinetics, 
      Laurentian University, Sudbury, Canada.
FAU - Dorman, Sandra C
AU  - Dorman SC
AD  - Laboratory of Environmental Exercise Physiology, School of Human Kinetics, 
      Laurentian University, Sudbury, Canada.
AD  - Center of Research in Occupational Health and Safety, Laurentian University, 
      Sudbury, Canada.
AD  - Northern Ontario School of Medicine, Sudbury, Canada.
FAU - Oddson, Bruce
AU  - Oddson B
AD  - Laboratory of Environmental Exercise Physiology, School of Human Kinetics, 
      Laurentian University, Sudbury, Canada.
FAU - Lariviere, Celine
AU  - Lariviere C
AD  - Laboratory of Environmental Exercise Physiology, School of Human Kinetics, 
      Laurentian University, Sudbury, Canada.
AD  - Center of Research in Occupational Health and Safety, Laurentian University, 
      Sudbury, Canada.
AD  - Northern Ontario School of Medicine, Sudbury, Canada.
FAU - Serresse, Olivier
AU  - Serresse O
AD  - Laboratory of Environmental Exercise Physiology, School of Human Kinetics, 
      Laurentian University, Sudbury, Canada.
LA  - eng
PT  - Journal Article
DEP - 20190511
PL  - Germany
TA  - Eur J Sport Sci
JT  - European journal of sport science
JID - 101146739
SB  - IM
MH  - Bicycling/physiology
MH  - Calorimetry, Indirect
MH  - *Carbohydrate Metabolism
MH  - *Cold Temperature
MH  - Exercise/*physiology
MH  - Healthy Volunteers
MH  - *Hot Temperature
MH  - Humans
MH  - *Lipid Metabolism
MH  - Male
MH  - Oxygen Consumption
MH  - Running/physiology
MH  - Young Adult
OTO - NOTNLM
OT  - Substrate oxidation
OT  - exercise
OT  - indirect calorimetry
OT  - temperature
EDAT- 2019/05/14 06:00
MHDA- 2020/08/04 06:00
CRDT- 2019/05/14 06:00
PHST- 2019/05/14 06:00 [pubmed]
PHST- 2020/08/04 06:00 [medline]
PHST- 2019/05/14 06:00 [entrez]
AID - 10.1080/17461391.2019.1612949 [doi]
PST - ppublish
SO  - Eur J Sport Sci. 2020 Feb;20(1):90-99. doi: 10.1080/17461391.2019.1612949. Epub 
      2019 May 11.