Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women

Jensen, Benjamin 2008. Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women. University of Jyväskylä, Department of Biology of Physical Activity. Master’s thesis in Science of Spo...

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Main Author: Jensen, Benjamin
Other Authors: Liikuntatieteellinen tiedekunta, Faculty of Sport and Health Sciences, Liikuntabiologian laitos, Department of Biology of Physical Activity, University of Jyväskylä, Jyväskylän yliopisto
Format: Master's thesis
Language:eng
Published: 2008
Subjects:
Online Access: https://jyx.jyu.fi/handle/123456789/36597
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author Jensen, Benjamin
author2 Liikuntatieteellinen tiedekunta Faculty of Sport and Health Sciences Liikuntabiologian laitos Department of Biology of Physical Activity University of Jyväskylä Jyväskylän yliopisto
author_facet Jensen, Benjamin Liikuntatieteellinen tiedekunta Faculty of Sport and Health Sciences Liikuntabiologian laitos Department of Biology of Physical Activity University of Jyväskylä Jyväskylän yliopisto Jensen, Benjamin Liikuntatieteellinen tiedekunta Faculty of Sport and Health Sciences Liikuntabiologian laitos Department of Biology of Physical Activity University of Jyväskylä Jyväskylän yliopisto
author_sort Jensen, Benjamin
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description Jensen, Benjamin 2008. Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women. University of Jyväskylä, Department of Biology of Physical Activity. Master’s thesis in Science of Sport Coaching and Fitness Testing. 70 pp. Purpose: The purpose of this investigation was to compare the effects of strength training only (2 x week), endurance training only (2 x week), and combined training (2 + 2 x week) on muscle hypertrophy and serum hormone concentrations in middle-aged and older women during 21 weeks of training. Methods: 96 healthy, moderately active middle-aged and older women were assigned to three training groups and a control group; 1) Strength training only (S, n = 27) 2 x week, program included dynamic exercises that activate a large amount of muscle bulk and increase energy metabolism. 2) Endurance training only (E, n = 26) 2 x week was performed by bicycle ergometer, heart rate levels of endurance training were determined by aerobic performance tests and monitored during training. 3) Combined strength and endurance training (SE, n = 25), performed both E and S sessions. 4) Control group (C, n = 18) was instructed to maintain their habitual physical activities which were monitored by training diaries. Lean mass (LM) of the legs and arms was measured by dual-energy x-ray absorptiometry (DEXA) and muscle thickness of several muscles by ultrasound at weeks 0, 10, and 21. Serum basal hormone concentrations of several anabolic hormones were measured at weeks -1, 0, 10, and 21. Results: The S and SE groups showed significant increases in LM in both arms and legs (S 1.6%, 1.4%, SE 2.1%, 4.0% respectively). All training groups showed significant increases (p<0.05, p<0.001) in LM legs, but only the S and SE groups showed increases in arms LM. S and SE groups showed the largest increases in muscle thickness in all muscles measured, with the SE group having the largest gains in the legs (vastus lateralis +vastus intermedius) 11.5%, biceps femoris long 8.3%) while the S group had the largest increases in arms (triceps brachii 10.0%, biceps brachii 7.1%). All training groups exhibited significant increases in serum testosterone (p<0.05, p<0.001). Conclusion: Combined strength and endurance training by cycling may be more effective than strength training alone for increasing muscle hypertrophy whether being measured by DEXA or ultrasound in middle aged and older women.
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Muscle hypertrophy and serum hormone concentrations during\r\ncombined strength and endurance training vs. strength or endurance training only in\r\nmiddle aged and older women. University of Jyv\u00e4skyl\u00e4, Department of Biology of\r\nPhysical Activity. Master\u2019s thesis in Science of Sport Coaching and Fitness Testing. 70\r\npp.\r\nPurpose: The purpose of this investigation was to compare the effects of strength\r\ntraining only (2 x week), endurance training only (2 x week), and combined training (2\r\n+ 2 x week) on muscle hypertrophy and serum hormone concentrations in middle-aged\r\nand older women during 21 weeks of training.\r\nMethods: 96 healthy, moderately active middle-aged and older women were assigned\r\nto three training groups and a control group; 1) Strength training only (S, n = 27) 2 x\r\nweek, program included dynamic exercises that activate a large amount of muscle bulk\r\nand increase energy metabolism. 2) Endurance training only (E, n = 26) 2 x week was\r\nperformed by bicycle ergometer, heart rate levels of endurance training were determined\r\nby aerobic performance tests and monitored during training. 3) Combined strength and\r\nendurance training (SE, n = 25), performed both E and S sessions. 4) Control group (C,\r\nn = 18) was instructed to maintain their habitual physical activities which were\r\nmonitored by training diaries. Lean mass (LM) of the legs and arms was measured by\r\ndual-energy x-ray absorptiometry (DEXA) and muscle thickness of several muscles by\r\nultrasound at weeks 0, 10, and 21. Serum basal hormone concentrations of several\r\nanabolic hormones were measured at weeks -1, 0, 10, and 21.\r\nResults: The S and SE groups showed significant increases in LM in both arms and\r\nlegs (S 1.6%, 1.4%, SE 2.1%, 4.0% respectively). All training groups showed\r\nsignificant increases (p<0.05, p<0.001) in LM legs, but only the S and SE groups\r\nshowed increases in arms LM. S and SE groups showed the largest increases in muscle\r\nthickness in all muscles measured, with the SE group having the largest gains in the legs\r\n(vastus lateralis +vastus intermedius) 11.5%, biceps femoris long 8.3%) while the S\r\ngroup had the largest increases in arms (triceps brachii 10.0%, biceps brachii 7.1%). All\r\ntraining groups exhibited significant increases in serum testosterone (p<0.05, p<0.001).\r\nConclusion: Combined strength and endurance training by cycling may be more\r\neffective than strength training alone for increasing muscle hypertrophy whether being\r\nmeasured by DEXA or ultrasound in middle aged and older women.", "language": "", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Benjamin Jensen (bepajens) on 2011-08-30 11:33:35.945639. Form: Master's Thesis publishing form (1 author) (https://kirjasto.jyu.fi/publish-and-buy/publishing-forms/masters-thesis-publishing-form-1-author). 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spellingShingle Jensen, Benjamin Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women lihashypertrofia Valmennus- ja testausoppi Science in Sport Coaching and Fitness Testing 5013 voimaharjoittelu kestävyysharjoittelu ikääntyminen keski-ikäiset miehet naiset ultraääni
title Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women
title_full Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women
title_fullStr Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women
title_full_unstemmed Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women
title_short Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women
title_sort muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs strength or endurance training only in middle aged and older women
title_txtP Muscle hypertrophy and serum hormone concentrations during combined strength and endurance training vs. strength or endurance training only in middle aged and older women
topic lihashypertrofia Valmennus- ja testausoppi Science in Sport Coaching and Fitness Testing 5013 voimaharjoittelu kestävyysharjoittelu ikääntyminen keski-ikäiset miehet naiset ultraääni
topic_facet 5013 Science in Sport Coaching and Fitness Testing Valmennus- ja testausoppi ikääntyminen keski-ikäiset kestävyysharjoittelu lihashypertrofia miehet naiset ultraääni voimaharjoittelu
url https://jyx.jyu.fi/handle/123456789/36597 http://www.urn.fi/URN:NBN:fi:jyu-2011083011309
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