Thermogenic response to a meal and exercise in aerobically-trained, resistive-trained and non-trained subjects
Gilbert, Jennie A.
This item is only available for download by members of the University of Illinois community. Students, faculty, and staff at the U of I may log in with your NetID and password to view the item. If you are trying to access an Illinois-restricted dissertation or thesis, you can request a copy through your library's Inter-Library Loan office or purchase a copy directly from ProQuest.
Permalink
https://hdl.handle.net/2142/22258
Description
Title
Thermogenic response to a meal and exercise in aerobically-trained, resistive-trained and non-trained subjects
Author(s)
Gilbert, Jennie A.
Issue Date
1989
Doctoral Committee Chair(s)
Misner, James E.
Department of Study
Kinesiology and Community Health
Discipline
Kinesiology and Community Health
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Education, Physical
Language
eng
Abstract
The purpose of this study was to examine the metabolic response to a 763 KCAL mixed meal at rest, during exercise at 50% VO$\sb2$ max and 3 hours post-exercise in aerobically-trained (AT, n = 8) resistive-trained (RT, n = 8) and non-trained (NT, n = 8) subjects. Average VO$\sb2$ max was 60.7 $\pm$ 2.3 ml/kg. min, 52.9 $\pm$ 2.2 ml/kg. min and 51.1 $\pm$ 2.2 ml/kg. min for the AT, RT and NT groups respectively. Average percent fat was 13.7 $\pm$ 1.2, 12.7 $\pm$ 1.9 and 16.9 $\pm$ 1.4 for the AT, RT and NT groups. Oxygen uptake was measured by indirect calorimetry every half hour, on four nonconsecutive days (postabsorptive, PA; postabsorptive with exercise, PAX; postprandial, PP; and postprandial with exercise, PPX) for four hours. The thermic effect of food (TEF) without exercise (PP minus PA) and the TEF during exercise (PPX minus PAX) was not significantly different among groups. Additionally, the meal failed to increase oxygen uptake during exercise compared to oxygen uptake without a meal. The TEF post-exercise was significantly lower for the AT and RT groups. The total TEF over four hours was equivalent to 4.86 $\pm$ 1.62, 5.22 $\pm$ 1.80 and 9.36 $\pm$ 5.04 liters of oxygen for the AT, RT and NT groups respectively. Respiratory exchange ratios (R) during the PA and PAX conditions were significantly lower for the AT group compared to the RT and NT groups; while the AT group was only significantly lower than the RT group post-exercise. During the PP condition, R was significantly lower for the both the AT and RT groups during rest and post-exercise, but no significant differences among groups was observed during exercise. The combination of a meal plus exercise failed to potentiate the TEF during exercise. The results of this study fail to demonstrate a lower TEF during non-exercise and exercise conditions in aerobically-trained and resistive-trained subjects compared to non-trained subjects; however, a decreased TEF was observed in both the AT and RT groups post-exercise.
Use this login method if you
don't
have an
@illinois.edu
email address.
(Oops, I do have one)
IDEALS migrated to a new platform on June 23, 2022. If you created
your account prior to this date, you will have to reset your password
using the forgot-password link below.
