PMID- 9660155
OWN - NLM
STAT- MEDLINE
DCOM- 19980903
LR  - 20190831
IS  - 0301-5548 (Print)
IS  - 0301-5548 (Linking)
VI  - 78
IP  - 1
DP  - 1998 Jun
TI  - Substrate use during and following moderate- and low-intensity exercise: 
      implications for weight control.
PG  - 43-9
AB  - Substrate utilization during and after low- and moderate-intensity exercise of 
      similar caloric expenditure was compared. Ten active males [age: 26.9 (4.8) 
      years; height: 181.1 (4.8) cm; Mass: 75.7 (8.8) kg; maximum O2 consumption 
      (VO2max): 51.2 (4.8) ml x kg(-1) x min(-1)] cycled at 33% and 66% VO2max on 
      separate days for 90 and 45 min, respectively. After exercise, subjects rested in 
      a recumbent position for 6 h. Two h post-exercise, subjects ate a standard meal 
      of 66% carbohydrate (CHO), 11% protein, and 23% fat. Near-continuous indirect 
      calorimetry and measurement of urinary nitrogen excretion were used to determine 
      substrate utilization. Total caloric expenditure was similar for the two trials; 
      however, significantly (P < 0.05) more fat [42.4 (3.6) g versus 24.0 (12.2) g] 
      and less CHO [142.5 (28.5) g versus 188.8 (45.2) g] was utilized as a substrate 
      during the low-intensity compared to the moderate-intensity trial. Protein 
      utilization was similar for the two trials. The difference in substrate use can 
      be attributed to the exercise period because over twice as much fat was utilized 
      during low-intensity [30.0 (11.0) g] compared to moderate-intensity exercise 
      [13.6 (6.6) g]. Significantly more (P < 0.05) CHO was utilized during the 
      moderate-intensity [106.0 (27.8) g] compared to the low-intensity exercise [68.7 
      (20.0) g]. Substrate use during the recovery period was not significantly 
      different. We conclude that low-intensity, long-duration exercise results in a 
      greater total fat oxidation than does moderate intensity exercise of similar 
      caloric expenditure. Dietary-induced thermogenesis was not different for the two 
      trials.
FAU - Thompson, D L
AU  - Thompson DL
AD  - Exercise Science Unit, University of Tennessee-Knoxville, 37996-2700, USA.
FAU - Townsend, K M
AU  - Townsend KM
FAU - Boughey, R
AU  - Boughey R
FAU - Patterson, K
AU  - Patterson K
FAU - Bassett, D R Jr
AU  - Bassett DR Jr
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Germany
TA  - Eur J Appl Physiol Occup Physiol
JT  - European journal of applied physiology and occupational physiology
JID - 0410266
RN  - 0 (Dietary Carbohydrates)
RN  - 0 (Dietary Fats)
RN  - 0 (Dietary Proteins)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Adult
MH  - Bicycling
MH  - Calorimetry, Indirect
MH  - Dietary Carbohydrates/administration & dosage
MH  - Dietary Fats/administration & dosage
MH  - Dietary Proteins/administration & dosage
MH  - Energy Intake
MH  - *Energy Metabolism
MH  - Exercise/*physiology
MH  - Humans
MH  - Lipid Metabolism
MH  - Male
MH  - Nitrogen/urine
MH  - Oxidation-Reduction
MH  - Oxygen Consumption
MH  - *Weight Loss
EDAT- 1998/07/11 02:21
MHDA- 2001/03/28 10:01
CRDT- 1998/07/11 02:21
PHST- 1998/07/11 02:21 [pubmed]
PHST- 2001/03/28 10:01 [medline]
PHST- 1998/07/11 02:21 [entrez]
AID - 10.1007/s004210050385 [doi]
PST - ppublish
SO  - Eur J Appl Physiol Occup Physiol. 1998 Jun;78(1):43-9. doi: 
      10.1007/s004210050385.