dc.contributor.author | Tam, Enrico | |
dc.contributor.author | Bruseghini, Paolo | |
dc.contributor.author | Capelli, Carlo | |
dc.contributor.author | Oliboni, Eugenio | |
dc.contributor.author | Pezzato, Andrea | |
dc.contributor.author | Pogliaghi, Silvia | |
dc.contributor.author | Mucelli, Roberto Pozzi | |
dc.contributor.author | Schena, Federico | |
dc.contributor.author | Calabria, Elisa | |
dc.date.accessioned | 2019-01-07T11:30:51Z | |
dc.date.available | 2019-01-07T11:30:51Z | |
dc.date.created | 2018-11-13T11:25:10Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Frontiers in Physiology. 2018, 9, 1353. | nb_NO |
dc.identifier.issn | 1664-042X | |
dc.identifier.uri | http://hdl.handle.net/11250/2579449 | |
dc.description.abstract | We compared the effects of 8 weeks of high intensity, aerobic interval training (HIT) and isoinertial resistance training (IRT) on: (i) O2 kinetics during heavy (HiEx) intensity exercise and; (ii) work economy during moderate (ModEx) intensity exercise in 12 healthy elderly men (69.3 ± 4.2 years). Breath-by-breath O2 and muscle deoxygenation ([HHb] by means of NIRS) were measured in HiEx and ModEx at identical workloads before and after trainings. In HiEx, O2 and HHb responses were modeled as tri-exponential and mono-exponential increasing functions, respectively. A two-way ANOVA for repeated measures analysis was made; Effect size (η2) was also evaluated. After HIT the amplitude and the time delay of the slow component of O2 uptake (O2sc) during HiEx were smaller (−32%; P = 0.045) and longer (+19.5%; P = 0.001), respectively. At Post IRT: (i) during ModEx, gain was lower (−5%; P = 0.050); (ii) during HiEx, τ2 (+14.4%; P = 0.050), d3 (+8.6%; P = 0.050), and τ3 (+17.2%; P = 0.050) were longer than at Pre IRT. After HIT, the decrease of the O2sc amplitude was likely induced by the beneficial effects of training on a more responsive O2 delivery and consumption cascade leading to a better muscle metabolic stability. IRT training was able to increase exercise economy during ModEx and to reduce the amplitude and delay the onset of O2sc during HiEx. These effects should be due to the reduction and the delayed recruitment of Type II muscle fibers. The better exercise economy and the delayed appearance of O2sc induced by IRT suggests that strength training might be included in endurance training programs to improve exercise economy and resistance to fatigue in this population of old subjects. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.subject | high intensity interval training | nb_NO |
dc.subject | isoinertial strength training | nb_NO |
dc.subject | heavy intensity exercise | nb_NO |
dc.subject | near-infrared spectroscopy | nb_NO |
dc.subject | oxygen uptake kinetics | nb_NO |
dc.subject | elderly | nb_NO |
dc.subject | muscle strength | nb_NO |
dc.subject | slow component | nb_NO |
dc.title | Effect of Endurance and Strength Training on the Slow Component of VO2 Kinetics in Elderly Humans | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | publishedVersion | nb_NO |
dc.rights.holder | © 2018 Tam, Bruseghini, Capelli, Oliboni, Pezzato, Pogliaghi, Pozzi Mucelli, Schena and Calabria. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. | nb_NO |
dc.source.journal | Frontiers in Physiology | nb_NO |
dc.identifier.doi | 10.3389/fphys.2018.01353 | |
dc.identifier.cristin | 1629852 | |
dc.description.localcode | Seksjon for fysisk prestasjonsevne / Department of Physical Performance | nb_NO |
cristin.unitcode | 150,31,0,0 | |
cristin.unitname | Seksjon for fysisk prestasjonsevne | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |