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Energy availability and its relation...

Reading, Karen Joanne.

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Energy availability and its relationship to salivary progesterone levels in elite adolescent aesthetic athletes.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Energy availability and its relationship to salivary progesterone levels in elite adolescent aesthetic athletes./
Author:	Reading, Karen Joanne.
Description:	167 p.
Notes:	Source: Masters Abstracts International, Volume: 37-06, page: 1750.
Contained By:	Masters Abstracts International37-06.
Subject:	Biology, Animal Physiology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MQ40098
ISBN:	9780612400986

Energy availability and its relationship to salivary progesterone levels in elite adolescent aesthetic athletes.
Reading, Karen Joanne.

Energy availability and its relationship to salivary progesterone levels in elite adolescent aesthetic athletes. - 167 p.

Source: Masters Abstracts International, Volume: 37-06, page: 1750.

Thesis (M.Sc.)--University of Alberta (Canada), 1999.

The purpose of the present study was to examine the role a negative energy balance plays in the development of menstrual abnormalities and whether resting energy expenditure is reduced in order to compensate for the apparent energy deficit in elite adolescent aesthetic athletes. Three groups of female adolescents (age 15 to 18) were studied; ten oligo/amenorrheic athletes, eleven eumenorrheic athletes and eight non-athlete controls. Components of energy balance, body weight/composition, dietary restraint, pubertal maturation and luteal phase salivary progesterone levels were compared. The two athlete groups were similar in all measures except luteal phase progesterone levels. The oligo/amenorrheic athletes had a significantly later pubertal development than the controls and lower luteal phase progesterone levels than the other two groups. Although the oligo/amenorrheic athletes were in a negative energy balance, it was not significantly lower than the other two groups and REE was not depressed. In conclusion, the present study lends no support for reduced REE as a mechanism of energy conservation. Luteal phase progesterone levels appear to be related to the stage of pubertal development and an immature reproductive hypothalamic-pituitary-ovarian axis, which is characteristic of adolescence.

ISBN: 9780612400986Subjects--Topical Terms:

1017835
Biology, Animal Physiology.

Energy availability and its relationship to salivary progesterone levels in elite adolescent aesthetic athletes.
LDR:02239nmm 2200289 4500 001 1825069
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008 130610s1999 eng d
020 $a 9780612400986
035 $a (UnM)AAIMQ40098
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040 $a UnM $c UnM
100 1 $a Reading, Karen Joanne. $3 1914093
245 1 0 $a Energy availability and its relationship to salivary progesterone levels in elite adolescent aesthetic athletes.
300 $a 167 p.
500 $a Source: Masters Abstracts International, Volume: 37-06, page: 1750.
500 $a Adviser: Linda McCargar.
502 $a Thesis (M.Sc.)--University of Alberta (Canada), 1999.
520 $a The purpose of the present study was to examine the role a negative energy balance plays in the development of menstrual abnormalities and whether resting energy expenditure is reduced in order to compensate for the apparent energy deficit in elite adolescent aesthetic athletes. Three groups of female adolescents (age 15 to 18) were studied; ten oligo/amenorrheic athletes, eleven eumenorrheic athletes and eight non-athlete controls. Components of energy balance, body weight/composition, dietary restraint, pubertal maturation and luteal phase salivary progesterone levels were compared. The two athlete groups were similar in all measures except luteal phase progesterone levels. The oligo/amenorrheic athletes had a significantly later pubertal development than the controls and lower luteal phase progesterone levels than the other two groups. Although the oligo/amenorrheic athletes were in a negative energy balance, it was not significantly lower than the other two groups and REE was not depressed. In conclusion, the present study lends no support for reduced REE as a mechanism of energy conservation. Luteal phase progesterone levels appear to be related to the stage of pubertal development and an immature reproductive hypothalamic-pituitary-ovarian axis, which is characteristic of adolescence.
590 $a School code: 0351.
650 4 $a Biology, Animal Physiology. $3 1017835
650 4 $a Health Sciences, Recreation. $3 1018003
650 4 $a Health Sciences, Human Development. $3 1019218
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690 $a 0575
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710 2 0 $a University of Alberta (Canada). $3 626651
773 0 $t Masters Abstracts International $g 37-06.
790 1 0 $a McCargar, Linda, $e advisor
790 $a 0351
791 $a M.Sc.
792 $a 1999
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MQ40098