{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/22476"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/22476","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Hormonal and metabolic responses to prolonged exercise in amenorrheic and eumenorrheic athletes","abstract":"The purpose of this investigation was to examine the importance of menstrual phase and menstrual status (amenorrhea versus eumenorrhea) on the hormonal and metabolic responses to prolonged, aerobic exercise. Six amenorrheic (AMc) and eight eumenorrheic (EUc) athletes were subjected to 90 minutes of treadmill running at 60% of VO$\\sb2$ max. The EUc subjects were tested in the early follicular (EF) (day 3-5), late follicular (LF) (day 13-17) and mid-luteal (ML) (day 21-23) phases. Menstrual phase did not influence the pattern of hormonal response of estrogen (E$\\sb2$), growth hormone (hGH) or cortisol, whereas, the progesterone (P) response in the ML phase was found to be significantly greater (p$<$.01) than in the EF or LF phases. Further, menstrual status was not found to influence the E$\\sb2$, P or hGH response to exercise, but the E$\\sb2$ concentrations in the EUc athletes were higher (p$<$.01) in all phases as compared to the AMc athletes. Basal cortisol levels were elevated (p$<$.01) in AMc athletes when compared to all phases of the EUc athletes. Additionally, the pattern of cortisol response to exercise was significantly higher in the AMc as compared to the EF and ML phases of the EUc. Metabolism was found to be independent of menstrual phase and status. It is posited that maintenance of blood glucose and overall homeostasis is of primary importance during prolonged exercise. Modest correlations were found between the hormonal and metabolic variables but these relationships may not be of physiological significance. It was concluded that the change in the hormonal milieu associated with the menstrual cycle does not influence metabolism as reflected in the relative carbohydrate and fat utilization. Amenorrhea influences basal and exercising cortisol levels but amenorrhea does not appear to have a negative influence on other hormonal response or metabolism.","abstract_html":"The purpose of this investigation was to examine the importance of menstrual phase and menstrual status (amenorrhea versus eumenorrhea) on the hormonal and metabolic responses to prolonged, aerobic exercise. Six amenorrheic (AMc) and eight eumenorrheic (EUc) athletes were subjected to 90 minutes of treadmill running at 60% of VO$\\sb2$ max. The EUc subjects were tested in the early follicular (EF) (day 3-5), late follicular (LF) (day 13-17) and mid-luteal (ML) (day 21-23) phases. Menstrual phase did not influence the pattern of hormonal response of estrogen (E$\\sb2$), growth hormone (hGH) or cortisol, whereas, the progesterone (P) response in the ML phase was found to be significantly greater (p$&lt;$.01) than in the EF or LF phases. Further, menstrual status was not found to influence the E$\\sb2$, P or hGH response to exercise, but the E$\\sb2$ concentrations in the EUc athletes were higher (p$&lt;$.01) in all phases as compared to the AMc athletes. Basal cortisol levels were elevated (p$&lt;$.01) in AMc athletes when compared to all phases of the EUc athletes. Additionally, the pattern of cortisol response to exercise was significantly higher in the AMc as compared to the EF and ML phases of the EUc. Metabolism was found to be independent of menstrual phase and status. It is posited that maintenance of blood glucose and overall homeostasis is of primary importance during prolonged exercise. Modest correlations were found between the hormonal and metabolic variables but these relationships may not be of physiological significance. It was concluded that the change in the hormonal milieu associated with the menstrual cycle does not influence metabolism as reflected in the relative carbohydrate and fat utilization. Amenorrhea influences basal and exercising cortisol levels but amenorrhea does not appear to have a negative influence on other hormonal response or metabolism.","abstract_has_math":true,"creators":["Kanaley, Jill Ann"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Kinesiology and Community Health","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T13:41:06Z","date_published":"2011-05-07T13:41:06Z","updated_at":"2026-07-22T22:25:20Z","subjects":["Biology, General","Biology, Animal Physiology","Health Sciences, Nutrition"],"languages":["eng"],"rights":["Copyright 1989 Kanaley, Jill Ann"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9010908","(UMI)AAI9010908"],"render_values":[{"text":"AAI9010908","href":null,"code":true},{"text":"(UMI)AAI9010908","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/22476","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Kanaley, Jill Ann"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T13:41:06Z","10000-01-01","1989"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Kinesiology and Community Health"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Biology, General","Biology, Animal Physiology","Health Sciences, Nutrition"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1989 Kanaley, Jill Ann"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9010908","(UMI)AAI9010908","http://hdl.handle.net/2142/22476"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The purpose of this investigation was to examine the importance of menstrual phase and menstrual status (amenorrhea versus eumenorrhea) on the hormonal and metabolic responses to prolonged, aerobic exercise. Six amenorrheic (AMc) and eight eumenorrheic (EUc) athletes were subjected to 90 minutes of treadmill running at 60% of VO$\\sb2$ max. The EUc subjects were tested in the early follicular (EF) (day 3-5), late follicular (LF) (day 13-17) and mid-luteal (ML) (day 21-23) phases. Menstrual phase did not influence the pattern of hormonal response of estrogen (E$\\sb2$), growth hormone (hGH) or cortisol, whereas, the progesterone (P) response in the ML phase was found to be significantly greater (p$<$.01) than in the EF or LF phases. Further, menstrual status was not found to influence the E$\\sb2$, P or hGH response to exercise, but the E$\\sb2$ concentrations in the EUc athletes were higher (p$<$.01) in all phases as compared to the AMc athletes. Basal cortisol levels were elevated (p$<$.01) in AMc athletes when compared to all phases of the EUc athletes. Additionally, the pattern of cortisol response to exercise was significantly higher in the AMc as compared to the EF and ML phases of the EUc. Metabolism was found to be independent of menstrual phase and status. It is posited that maintenance of blood glucose and overall homeostasis is of primary importance during prolonged exercise. Modest correlations were found between the hormonal and metabolic variables but these relationships may not be of physiological significance. It was concluded that the change in the hormonal milieu associated with the menstrual cycle does not influence metabolism as reflected in the relative carbohydrate and fat utilization. Amenorrhea influences basal and exercising cortisol levels but amenorrhea does not appear to have a negative influence on other hormonal response or metabolism.","Made available in DSpace on 2011-05-07T13:41:06Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9010908.pdf: 8154575 bytes, checksum: 3d1c7f73ab36ad0cc621888068fd7da4 (MD5) Previous issue date: 1989","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:57:52Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:27:10-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"]},{"key":"dc:title","label":"Title","values":["Hormonal and metabolic responses to prolonged exercise in amenorrheic and eumenorrheic athletes"]}]}],"canonical_facts":{"dc:creator":["Kanaley, Jill Ann"],"dc:date":["2011-05-07T13:41:06Z","10000-01-01","1989"],"dc:description":["The purpose of this investigation was to examine the importance of menstrual phase and menstrual status (amenorrhea versus eumenorrhea) on the hormonal and metabolic responses to prolonged, aerobic exercise. Six amenorrheic (AMc) and eight eumenorrheic (EUc) athletes were subjected to 90 minutes of treadmill running at 60% of VO$\\sb2$ max. The EUc subjects were tested in the early follicular (EF) (day 3-5), late follicular (LF) (day 13-17) and mid-luteal (ML) (day 21-23) phases. Menstrual phase did not influence the pattern of hormonal response of estrogen (E$\\sb2$), growth hormone (hGH) or cortisol, whereas, the progesterone (P) response in the ML phase was found to be significantly greater (p$<$.01) than in the EF or LF phases. Further, menstrual status was not found to influence the E$\\sb2$, P or hGH response to exercise, but the E$\\sb2$ concentrations in the EUc athletes were higher (p$<$.01) in all phases as compared to the AMc athletes. Basal cortisol levels were elevated (p$<$.01) in AMc athletes when compared to all phases of the EUc athletes. Additionally, the pattern of cortisol response to exercise was significantly higher in the AMc as compared to the EF and ML phases of the EUc. Metabolism was found to be independent of menstrual phase and status. It is posited that maintenance of blood glucose and overall homeostasis is of primary importance during prolonged exercise. Modest correlations were found between the hormonal and metabolic variables but these relationships may not be of physiological significance. It was concluded that the change in the hormonal milieu associated with the menstrual cycle does not influence metabolism as reflected in the relative carbohydrate and fat utilization. Amenorrhea influences basal and exercising cortisol levels but amenorrhea does not appear to have a negative influence on other hormonal response or metabolism.","Made available in DSpace on 2011-05-07T13:41:06Z (GMT). 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