Greater growth hormone and insulin response in women than in men during repeated bouts of sprint exercise.
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| Title: | Greater growth hormone and insulin response in women than in men during repeated bouts of sprint exercise. |
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| Authors: | Esbjörnsson, M., Norman, B., Suchdev, S., Viru, M., Lindhgren, A., Jansson, E. |
| Source: | Acta Physiologica. Oct2009, Vol. 197 Issue 2, p107-115. 9p. 1 Chart, 4 Graphs. |
| Subjects: | Somatotropin, Insulin, Sprinting, Sex differences (Biology), Metabolism |
| Abstract: | Aim: In a previous study, sprint training has been shown to increase muscle cross-sectional area in women but not in men [Eur J Appl Physiol Occup Physiol 74 (1996) 375]. We hypothesized that sprint exercise induces a different hormonal response in women than in men. Such a difference may contribute to explaining the observed gender difference in training response. Method: Metabolic and hormonal response to three 30-s sprints with 20-min rest between the sprints was studied in 18 physically active men and women. Results: Accumulation of blood lactate [interaction term gender ( g) × time ( t): P = 0.022], and plasma ammonia ( g × t: P < 0.001) after sprint exercise was greater in men. Serum insulin increased after sprint exercise more so in women than in men ( g × t: P = 0.020), while plasma glucose increased in men, but not in women ( g × t: P < 0.001). Serum growth hormone (GH) increased in both women and men reaching similar peak levels, but with different time courses. In women the peak serum GH level was observed after sprint 1, whereas in men the peak was observed after sprint 3 ( g × t; P < 0.001). Serum testosterone tended to decrease in men and increase in women ( g × t: P = 0.065). Serum cortisol increased approx. 10–15% after sprint exercise, independent of gender (time: P = 0.005). Conclusion: Women elicited a greater response of serum GH and insulin to sprint exercise. This may contribute to explaining the earlier observed muscle hypertrophy in women in response to sprint training. [ABSTRACT FROM AUTHOR] |
| Copyright of Acta Physiologica is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: pbh DbLabel: Psychology and Behavioral Sciences Collection An: 44015952 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Greater growth hormone and insulin response in women than in men during repeated bouts of sprint exercise. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Esbjörnsson%2C+M%2E%22">Esbjörnsson, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Norman%2C+B%2E%22">Norman, B.</searchLink><br /><searchLink fieldCode="AR" term="%22Suchdev%2C+S%2E%22">Suchdev, S.</searchLink><br /><searchLink fieldCode="AR" term="%22Viru%2C+M%2E%22">Viru, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Lindhgren%2C+A%2E%22">Lindhgren, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Jansson%2C+E%2E%22">Jansson, E.</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Acta+Physiologica%22">Acta Physiologica</searchLink>. Oct2009, Vol. 197 Issue 2, p107-115. 9p. 1 Chart, 4 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Somatotropin%22">Somatotropin</searchLink><br /><searchLink fieldCode="DE" term="%22Insulin%22">Insulin</searchLink><br /><searchLink fieldCode="DE" term="%22Sprinting%22">Sprinting</searchLink><br /><searchLink fieldCode="DE" term="%22Sex+differences+%28Biology%29%22">Sex differences (Biology)</searchLink><br /><searchLink fieldCode="DE" term="%22Metabolism%22">Metabolism</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Aim: In a previous study, sprint training has been shown to increase muscle cross-sectional area in women but not in men [Eur J Appl Physiol Occup Physiol 74 (1996) 375]. We hypothesized that sprint exercise induces a different hormonal response in women than in men. Such a difference may contribute to explaining the observed gender difference in training response. Method: Metabolic and hormonal response to three 30-s sprints with 20-min rest between the sprints was studied in 18 physically active men and women. Results: Accumulation of blood lactate [interaction term gender ( g) × time ( t): P = 0.022], and plasma ammonia ( g × t: P < 0.001) after sprint exercise was greater in men. Serum insulin increased after sprint exercise more so in women than in men ( g × t: P = 0.020), while plasma glucose increased in men, but not in women ( g × t: P < 0.001). Serum growth hormone (GH) increased in both women and men reaching similar peak levels, but with different time courses. In women the peak serum GH level was observed after sprint 1, whereas in men the peak was observed after sprint 3 ( g × t; P < 0.001). Serum testosterone tended to decrease in men and increase in women ( g × t: P = 0.065). Serum cortisol increased approx. 10–15% after sprint exercise, independent of gender (time: P = 0.005). Conclusion: Women elicited a greater response of serum GH and insulin to sprint exercise. This may contribute to explaining the earlier observed muscle hypertrophy in women in response to sprint training. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Acta Physiologica is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/j.1748-1716.2009.01994.x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 107 Subjects: – SubjectFull: Somatotropin Type: general – SubjectFull: Insulin Type: general – SubjectFull: Sprinting Type: general – SubjectFull: Sex differences (Biology) Type: general – SubjectFull: Metabolism Type: general Titles: – TitleFull: Greater growth hormone and insulin response in women than in men during repeated bouts of sprint exercise. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Esbjörnsson, M. – PersonEntity: Name: NameFull: Norman, B. – PersonEntity: Name: NameFull: Suchdev, S. – PersonEntity: Name: NameFull: Viru, M. – PersonEntity: Name: NameFull: Lindhgren, A. – PersonEntity: Name: NameFull: Jansson, E. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2009 Type: published Y: 2009 Identifiers: – Type: issn-print Value: 17481708 Numbering: – Type: volume Value: 197 – Type: issue Value: 2 Titles: – TitleFull: Acta Physiologica Type: main |
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