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Acta Facultatis Educationis Physicae Universitatis Comenianae

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0520-7371
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Acute Response Of Bone Metabolism To Various Resistance Exercises In Women

Jana Kovárová
  • Department of Sport kinantropology, Faculty of Physical Education and Sport, Comenius University in Bratislava
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/ Dušan Hamar
  • Department of Sport kinantropology, Faculty of Physical Education and Sport, Comenius University in Bratislava
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/ Milan Sedliak
  • Department of Sport kinantropology, Faculty of Physical Education and Sport, Comenius University in Bratislava
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/ Ján Cvečka
  • Department of Sport kinantropology, Faculty of Physical Education and Sport, Comenius University in Bratislava
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/ Peter Schickhofer
  • Department of Sport kinantropology, Faculty of Physical Education and Sport, Comenius University in Bratislava
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/ Ľubica Böhmerová
  • Department of Sport kinantropology, Faculty of Physical Education and Sport, Comenius University in Bratislava
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Published Online: 2015-09-30 | DOI: https://doi.org/10.1515/afepuc-2015-0002

Abstract

The study examines the acute response of bone turnover markers to two different single bouts of resistance exercises in women. Serum bone alkaline phosphatase and sclerostin concentration were measured before, 24 and 48 hours after the interventions to detect the dynamics of bone turnover. Subjects performed two exercises and a control experiment without exercise (CONTR) on different occasions, with 3-week breaks between the interventions, in a random order. First exercises protocol had a constant resistance of 75 % 1 RM (ISOF). Second, serial stretch loading (SSL), was isokinetic: velocity of concentric and eccentric phase of the movement was 50 and 40 cm/s, respectively. Short stops were incorporated into both phases of the movement after every 20 mm, resulting in a frequency of the force peaks of 10 Hz in concentric as well as in eccentric phase. Both protocols consisted of 6 sets of 6 repetitions and 2-minute resting periods. The exercises interventions had no statistically significant effect on either bone turnover marker concentration at any of the time points.

Keywords: serial stretch loading; bone turnover; bone alkaline phosphatase; sclerostin

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About the article

Published Online: 2015-09-30

Published in Print: 2015-05-01


Citation Information: Acta Facultatis Educationis Physicae Universitatis Comenianae, ISSN (Online) 0520-7371, DOI: https://doi.org/10.1515/afepuc-2015-0002.

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© Jana Kovárová et al.. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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