Usefulness of Free Testosterone/Cortisol Ratio during a Season of Elite Speed Skating Athletes
Abstract Free testosterone/cortisol ratio (FTCR) was used in eight elite speed skaters (five males, three females), during an eight-month season, to study the effectiveness of the hormonal parameter as a marker of the condition of overstrain and/or incomplete recovery. We did not find values lower t...
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| Veröffentlicht in: | International journal of sports medicine 1993-10, Vol.14 (7), p.373-379 |
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| container_title | International journal of sports medicine |
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| creator | Banfi, G. Marinelli, M. Roi, G. S. Agape, V. |
| description | Abstract
Free testosterone/cortisol ratio (FTCR) was used in eight elite speed skaters (five males, three females), during an eight-month season, to study the effectiveness of the hormonal parameter as a marker of the condition of overstrain and/or incomplete recovery. We did not find values lower than 0.35 · 10
-3
. We confirmed the reliability of the criterion of FTCR decrease of 30% or more to indicate temporary incomplete recovery from intensive training and residual weariness and, consequently, of reduced effectiveness for competitive purposes; a formula was used in this case to calculate FTCR. When FTCR was calculated by using directly measured FT, we remarked that such threshold criterion could not be used and the significant decrease was of 18% or more. The major problem of FTCR is the limitation of its use to male athletes, although the trend found in females was similar to that presented in males. FTCR is a useful index in elite speed skaters: broader application of this index and further investigation are required to set testing times, to use direct measurement of free testosterone and, finally, to find an equivalent support for women. |
| doi_str_mv | 10.1055/s-2007-1021195 |
| format | Article |
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Free testosterone/cortisol ratio (FTCR) was used in eight elite speed skaters (five males, three females), during an eight-month season, to study the effectiveness of the hormonal parameter as a marker of the condition of overstrain and/or incomplete recovery. We did not find values lower than 0.35 · 10
-3
. We confirmed the reliability of the criterion of FTCR decrease of 30% or more to indicate temporary incomplete recovery from intensive training and residual weariness and, consequently, of reduced effectiveness for competitive purposes; a formula was used in this case to calculate FTCR. When FTCR was calculated by using directly measured FT, we remarked that such threshold criterion could not be used and the significant decrease was of 18% or more. The major problem of FTCR is the limitation of its use to male athletes, although the trend found in females was similar to that presented in males. FTCR is a useful index in elite speed skaters: broader application of this index and further investigation are required to set testing times, to use direct measurement of free testosterone and, finally, to find an equivalent support for women.</description><identifier>ISSN: 0172-4622</identifier><identifier>EISSN: 1439-3964</identifier><identifier>DOI: 10.1055/s-2007-1021195</identifier><identifier>PMID: 8244603</identifier><identifier>CODEN: IJSMDA</identifier><language>eng</language><publisher>Stuttgart: Thieme</publisher><subject>Adult ; Biological and medical sciences ; Exercise Tolerance - physiology ; Female ; Fundamental and applied biological sciences. Psychology ; Hematocrit ; Hemoglobins - analysis ; Humans ; Hydrocortisone - blood ; Male ; Physical Endurance - physiology ; Serum Albumin - analysis ; Sex Characteristics ; Sex Hormone-Binding Globulin - analysis ; Skating - physiology ; Stress, Physiological - physiopathology ; Testosterone - blood ; Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports</subject><ispartof>International journal of sports medicine, 1993-10, Vol.14 (7), p.373-379</ispartof><rights>Georg Thieme Verlag Stuttgart · New York</rights><rights>1994 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c388t-11826cb811fbaafd016975dc1b487ca3a7b93244dfbba9d23d2065d1b50442d63</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.thieme-connect.de/products/ejournals/pdf/10.1055/s-2007-1021195.pdf$$EPDF$$P50$$Gthieme$$H</linktopdf><link.rule.ids>315,781,785,3018,3019,27929,27930,54564</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3770465$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/8244603$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Banfi, G.</creatorcontrib><creatorcontrib>Marinelli, M.</creatorcontrib><creatorcontrib>Roi, G. S.</creatorcontrib><creatorcontrib>Agape, V.</creatorcontrib><title>Usefulness of Free Testosterone/Cortisol Ratio during a Season of Elite Speed Skating Athletes</title><title>International journal of sports medicine</title><addtitle>Int J Sports Med</addtitle><description>Abstract
Free testosterone/cortisol ratio (FTCR) was used in eight elite speed skaters (five males, three females), during an eight-month season, to study the effectiveness of the hormonal parameter as a marker of the condition of overstrain and/or incomplete recovery. We did not find values lower than 0.35 · 10
-3
. We confirmed the reliability of the criterion of FTCR decrease of 30% or more to indicate temporary incomplete recovery from intensive training and residual weariness and, consequently, of reduced effectiveness for competitive purposes; a formula was used in this case to calculate FTCR. When FTCR was calculated by using directly measured FT, we remarked that such threshold criterion could not be used and the significant decrease was of 18% or more. The major problem of FTCR is the limitation of its use to male athletes, although the trend found in females was similar to that presented in males. FTCR is a useful index in elite speed skaters: broader application of this index and further investigation are required to set testing times, to use direct measurement of free testosterone and, finally, to find an equivalent support for women.</description><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Exercise Tolerance - physiology</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Hematocrit</subject><subject>Hemoglobins - analysis</subject><subject>Humans</subject><subject>Hydrocortisone - blood</subject><subject>Male</subject><subject>Physical Endurance - physiology</subject><subject>Serum Albumin - analysis</subject><subject>Sex Characteristics</subject><subject>Sex Hormone-Binding Globulin - analysis</subject><subject>Skating - physiology</subject><subject>Stress, Physiological - physiopathology</subject><subject>Testosterone - blood</subject><subject>Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. 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Psychology</topic><topic>Hematocrit</topic><topic>Hemoglobins - analysis</topic><topic>Humans</topic><topic>Hydrocortisone - blood</topic><topic>Male</topic><topic>Physical Endurance - physiology</topic><topic>Serum Albumin - analysis</topic><topic>Sex Characteristics</topic><topic>Sex Hormone-Binding Globulin - analysis</topic><topic>Skating - physiology</topic><topic>Stress, Physiological - physiopathology</topic><topic>Testosterone - blood</topic><topic>Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Banfi, G.</creatorcontrib><creatorcontrib>Marinelli, M.</creatorcontrib><creatorcontrib>Roi, G. S.</creatorcontrib><creatorcontrib>Agape, V.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Physical Education Index</collection><collection>MEDLINE - Academic</collection><jtitle>International journal of sports medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Banfi, G.</au><au>Marinelli, M.</au><au>Roi, G. 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Free testosterone/cortisol ratio (FTCR) was used in eight elite speed skaters (five males, three females), during an eight-month season, to study the effectiveness of the hormonal parameter as a marker of the condition of overstrain and/or incomplete recovery. We did not find values lower than 0.35 · 10
-3
. We confirmed the reliability of the criterion of FTCR decrease of 30% or more to indicate temporary incomplete recovery from intensive training and residual weariness and, consequently, of reduced effectiveness for competitive purposes; a formula was used in this case to calculate FTCR. When FTCR was calculated by using directly measured FT, we remarked that such threshold criterion could not be used and the significant decrease was of 18% or more. The major problem of FTCR is the limitation of its use to male athletes, although the trend found in females was similar to that presented in males. FTCR is a useful index in elite speed skaters: broader application of this index and further investigation are required to set testing times, to use direct measurement of free testosterone and, finally, to find an equivalent support for women.</abstract><cop>Stuttgart</cop><cop>New York, NY</cop><pub>Thieme</pub><pmid>8244603</pmid><doi>10.1055/s-2007-1021195</doi><tpages>7</tpages></addata></record> |
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| subjects | Adult Biological and medical sciences Exercise Tolerance - physiology Female Fundamental and applied biological sciences. Psychology Hematocrit Hemoglobins - analysis Humans Hydrocortisone - blood Male Physical Endurance - physiology Serum Albumin - analysis Sex Characteristics Sex Hormone-Binding Globulin - analysis Skating - physiology Stress, Physiological - physiopathology Testosterone - blood Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports |
| title | Usefulness of Free Testosterone/Cortisol Ratio during a Season of Elite Speed Skating Athletes |
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