PMID- 26329837
OWN - NLM
STAT- MEDLINE
DCOM- 20170308
LR  - 20181202
IS  - 1827-1928 (Electronic)
IS  - 0022-4707 (Linking)
VI  - 56
IP  - 11
DP  - 2016 Nov
TI  - Higher fat oxidation during treadmill walking versus cycle ergometry in active 
      women at equal RPE: a pilot study.
PG  - 1298-1303
AB  - BACKGROUND: Muscle degrades fat and carbohydrate (CHO) during exercise to meet 
      the demand for ATP. Factors including exercise intensity/duration and fitness 
      level are recognized as primary determinants of the relative contribution of 
      these macronutrients to substrate metabolism, although exercise mode has also 
      been identified. The aim of this study was to determine potential differences in 
      substrate metabolism during treadmill (TM) and cycle ergometer (CE) exercise 
      performed at equal rating of perceived exertion (RPE). METHODS: Eleven 
      recreationally active women (age =23.0+/-3.0 yr, Body Mass Index =20.7+/-1.7 kg/m2) 
      performed one 30 min bout of endurance exercise on the CE and TM separated by 1 
      wk. Three 10 min stages of exercise were completed at RPE equal to 11, 13, and 
      15. During exercise, gas exchange data were continuously obtained to determine 
      fat and CHO oxidation. Subjects fasted 3 h prior to exercise and standardized 
      their dietary intake 48 h prior to each bout. Two-way ANOVA with repeated 
      measures was used to determine differences in respiratory exchange ratio (RER) 
      and fat and CHO oxidation between exercise modes. RESULTS: RER was higher 
      (P<0.05) during CE compared to TM at RPE equal to 11 (0.92+/-0.03 vs. 0.87+/-0.06), 
      13 (0.95+/-0.03 vs. 0.89+/-0.05), and 15 (1.00+/-0.03 vs. 0.93+/-0.04), leading to lower 
      fat oxidation (P=0.009) and higher CHO oxidation in response to TM versus CE 
      (P=0.003). CONCLUSIONS: Greater fat utilization occurred in response to treadmill 
      walking at RPE ranging from 11-15 versus cycle ergometry.
FAU - King, Leesa
AU  - King L
AD  - Department of Kinesiology, California State University San Marcos, San Marcos, 
      CA, USA - astorino@csusm.edu.
FAU - Sillers, Whitney
AU  - Sillers W
FAU - McCarthy, Kelsey
AU  - McCarthy K
FAU - Louis, Paige
AU  - Louis P
FAU - Astorino, Todd A
AU  - Astorino TA
LA  - eng
PT  - Journal Article
DEP - 20150901
PL  - Italy
TA  - J Sports Med Phys Fitness
JT  - The Journal of sports medicine and physical fitness
JID - 0376337
RN  - 0 (Dietary Fats)
SB  - IM
MH  - Adult
MH  - Dietary Fats/*metabolism
MH  - *Ergometry
MH  - Exercise/physiology
MH  - Exercise Test/*methods
MH  - Female
MH  - Humans
MH  - *Oxidation-Reduction
MH  - Oxygen Consumption/physiology
MH  - Pilot Projects
MH  - *Walking
MH  - Young Adult
EDAT- 2015/09/04 06:00
MHDA- 2017/03/09 06:00
CRDT- 2015/09/03 06:00
PHST- 2015/09/04 06:00 [pubmed]
PHST- 2017/03/09 06:00 [medline]
PHST- 2015/09/03 06:00 [entrez]
AID - R40Y9999N00A150140 [pii]
PST - ppublish
SO  - J Sports Med Phys Fitness. 2016 Nov;56(11):1298-1303. Epub 2015 Sep 1.