Interval and continuous exercise training produce similar increases in skeletal muscle and left ventricle microvascular density in rats.
Interval training (IT), consisting of alternated periods of high and low intensity exercise, has been proposed as a strategy to induce more marked biological adaptations than continuous exercise training (CT). The purpose of this study was to assess the effects of IT and CT with equivalent total ene...
| Publicado en: | BioMed Research International Vol. 2013; pp. 752817 - 752818 |
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| Autores principales: | , , , |
| Formato: | research Journal Article |
| Publicado: |
Wiley-Blackwell
2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104135851&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104135851 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 23146133 FT2T jtl: BioMed Research International issn: 23146133 maglogo: N pubinfo: dt: 2013 vid: 2013 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 104135851 104135851 2012423367 NLM24371829 PMC3858873 104135851 ppf: 752817 ppct: 1 formats: fmt: @attributes: type: P tig: atl: Interval and continuous exercise training produce similar increases in skeletal muscle and left ventricle microvascular density in rats. aug: au: Pereira, Flávio de Moraes, Roger Tibiriçá, Eduardo Nóbrega, Antonio C L affil: Laboratory of Cardiovascular Investigation, Oswaldo Cruz Institute, FIOCRUZ, 21040 900 Rio de Janeiro, RJ, Brazil ; Department of Physiology and Pharmacology, Fluminense Federal University, 24210 130 Niterói, RJ, Brazil. sug: subj: Blood Circulation Heart Ventricle Muscle, Skeletal Physical Fitness Methods Animal Studies Rats ab: Interval training (IT), consisting of alternated periods of high and low intensity exercise, has been proposed as a strategy to induce more marked biological adaptations than continuous exercise training (CT). The purpose of this study was to assess the effects of IT and CT with equivalent total energy expenditure on capillary skeletal and cardiac muscles in rats. Wistar rats ran on a treadmill for 30 min per day with no slope (0%), 4 times/week for 13 weeks. CT has constant load of 70% max; IT has cycles of 90% max for 1 min followed by 1 min at 50% max. CT and IT increased endurance and muscle oxidative capacity and attenuated body weight gain to a similar extent (P > 0.05). In addition, CT and IT similarly increased functional capillary density of skeletal muscle (CT: 30.6 ± 11.7%; IT: 28.7 ± 11.9%) and the capillary-to-fiber ratio in skeletal muscle (CT: 28.7 ± 14.4%; IT: 40.1 ± 17.2%) and in the left ventricle (CT: 57.3 ± 53.1%; IT: 54.3 ± 40.5%). In conclusion, at equivalent total work volumes, interval exercise training induced similar functional and structural alterations in the microcirculation of skeletal muscle and myocardium in healthy rats compared to continuous exercise training. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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