Arterial distensibility: acute changes following dynamic  exercise in normal subjects

Naka, Katerina K.; Tweddel, A. C.; Parthimos, Dimitris; Henderson, A R; Goodfellow, Jonathan; Frenneaux, Michael

doi:10.1152/ajpheart.00529.2002

Cited by 96 publications

(111 citation statements)

References 33 publications

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“…8,9 Nevertheless, there is little and inconsistent data about the effects of acute bouts of exercise on AS. Acute aerobic exercise was found to induce either an increase 10 or a decrease 11,12 in central AS, whereas studies on acute bouts of resistance exercise showed either an increase 13 or no effect 14 on central AS. In all of the studies (except for one 10 ) measurements were made some minutes after the end of the exercise protocol.…”

Section: Introductionmentioning

confidence: 94%

“…Indices of central AS after performing dynamic exercise have been assessed in three studies in the literature by employing several exercise protocols, methodologies (Doppler, oscillometric device, applanation tonometry) and at several time points after cessation of exercise (3-30 min). 11,12,45 At 3 min posttreadmill exercise, upper limb PWV was 35% higher than baseline and soon declined below baseline by 5-10 min, accompanied by a fall in BP. 12 Likewise, in the other two studies, aortic PWV was found to be reduced when measured at 20 45 and 30 min 12 postexercise indicating reduced central AS after an acute bout of exercise.…”

Section: Lydakis Et Almentioning

confidence: 99%

“…11,12,45 At 3 min posttreadmill exercise, upper limb PWV was 35% higher than baseline and soon declined below baseline by 5-10 min, accompanied by a fall in BP. 12 Likewise, in the other two studies, aortic PWV was found to be reduced when measured at 20 45 and 30 min 12 postexercise indicating reduced central AS after an acute bout of exercise. In the only study (to the best of our knowledge) in the literature, in which central haemodynamic parameters were assessed during the acute bout of exercise, a fall in the pulse wave transit time was noted (in agreement with our results).…”

Section: Lydakis Et Almentioning

confidence: 99%

“…This assumption is supported by studies showing that within 20-60 min after dynamic exercise estimated peripheral stiffness (by measuring PWV) falls. 12,45 Furthermore, immediately after exercise a quick drop in central stiffness is observed 12,45 following the withdrawal of the sympathetic stimulus and the ensuing fall in BP. In contrast, during static exercise peripheral vascular resistance increases due to compression of the vasculature form extravascular forces 51 and therefore central and peripheral stiffness (assessed by PWV) increase in the post-exercise period.…”

Section: Lydakis Et Almentioning

confidence: 99%

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Changes of central haemodynamic parameters during mental stress and acute bouts of static and dynamic exercise

et al. 2008

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Chronic dynamic (aerobic) exercise decreases central arterial stiffness, whereas chronic resistance exercise evokes the opposite effect. Nevertheless, there is little information available on the effects of acute bouts of exercise. Also, there is limited data showing an increase of central arterial stiffness during acute mental stress. This study aimed to determine the effect of acute mental and physical (static and dynamic exercise) stress on indices of central arterial stiffness. Fifteen young healthy volunteers were studied. The following paradigms were performed: (1) 2 min of mental arithmetic, (2) short bouts (20 s) of static handgrip at 20 and 70% of maximal voluntary contraction (MVC), (3) fatiguing handgrip at 40% MVC and (4) incremental dynamic knee extensor exercise. Central aortic waveforms were assessed using SphygmoCor software. As compared to baseline, pulse wave transit time decreased significantly for all four interventions indicating that central arterial stiffness increased. During fatiguing handgrip there was a fall in the ratio of peripheral to central pulse pressure from 1.69 ± 0.02 at baseline to 1.56±0.05 (Po0.05). In the knee extensor protocol a nonsignificant trend for the opposite effect was noted. The augmentation index increased significantly during the arithmetic, short static and fatiguing handgrip protocols, whereas there was no change in the knee extensor protocol. We conclude that (1) during all types of acute stress tested in this study (including dynamic exercise) estimated central stiffness increased, (2) during static exercise the workload posed on the left ventricle (expressed as change in central pulse pressure) is relatively higher than that posed during dynamic exercise (given the same pulse pressure change in the periphery).

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Section: Introductionmentioning

confidence: 94%

Section: Lydakis Et Almentioning

confidence: 99%

Section: Lydakis Et Almentioning

confidence: 99%

Section: Lydakis Et Almentioning

confidence: 99%

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Changes of central haemodynamic parameters during mental stress and acute bouts of static and dynamic exercise

et al. 2008

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“…These changes can ultimately result in aortic stiffening, which impairs the buffering capacity in relation to arterial pressure and flow, contributing to systolic hypertension and an increased cardiac after load (Belz, 1995;Kass, Saeki, Tunin, & Recchia, 1996). On the other hand, several studies have shown that arterial stiffening may be favorably modified through exercise training (Mourot et al, 2009;Naka et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Resistance training attenuates the effects of aging in the aorta of Wistar rats

Souza

Santos

Maifrino

et al. 2015

Motriz: rev. educ. fis.

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Abstract--The objective of the present study was to follow the structural modifications of the aortic wall in middle-aged rats submitted to a resistance training protocol for a period of four months. Three groups of 8 animals per group were considered: middle-aged group (MA), old control group (OC) and old trained group (OT). Training consisted in to climb a 1.1-m vertical (80° incline) ladder with weights tied to their tail. Aortic wall structural modifications were studied through light and electron microscopy and morphometry. The mean arterial blood pressure at rest was similar in the three experimental groups (p = .07). At the beginning of the experiment, the OC and OT groups had similar repetition maximums, ranging from 1.6-fold to 1.9-fold the body weight. At the end of the experiment, the repetition maximum of the OT group was 5-fold greater than the body weight (p = .03). The LV weight was 15% larger in the OT group than in the MA group and 12% larger than in the OC group (p = .02). The LV wall thickness of the OT group was significantly larger than that of both, the MA group and the OC group (p = .03). The LV internal diameter in the OT group was significantly smaller than that observed in the MA and OC groups (p = .02). Resistance training diminished the alterations associated with aging improving aortic wall structure by reducing the thickness, normalising the elastic material, the collagen and the smooth muscle cells. Resistance training seems to be a potential treatment for reducing the deleterious effects of aging on the aortic wall.Keywords: aortic structure, anaerobic training, remodeling, stereology Resumo--"O treinamento resistido atenua os efeitos do envelhecimento na aorta de ratos Wistar." Este estudo teve por objetivo avaliar as modificações da parede da aorta de ratos Wistar de meia-idade, submetidos a treinamento resistido por 4 meses. Foram utilizados 3 grupos de animais com oito animais por grupo: meia idade (MI), idoso controle (IC) e idoso treinado (IT). Os ratos subiam uma escada vertical inclinada (80°) com pesos atrelados à cauda. A parede da aorta foi avaliada através de microscopia de luz e eletrônica e morfometria. A pressão arterial média no repouso foi similar nos três grupos experimentais (p = 0,07). No início, os grupos IC e IT tiveram treinamento de repetições máximas semelhantes, variando de 1,6 a 1,9 vezes o valor do peso corporal. No final o treinamento de repetição maxima do grupo IT foi 5 vezes maior que o peso corporal (p = 0,03). O peso do ventrículo esquerdo do grupo IT foi 15% maior do que o do grupo MI e 12% maior do que o do grupo IC (p = 0,02). A espessura da parede do ventrículo no grupo IT foi significantemente maior do que nos grupos MI e IC (p = 0,03). O diâmetro interno da cavidade do ventrículo foi significantemente menor no grupo IT do que nos demais grupos (p = 0,02). O treinamento diminuiu as alterações associadas com o envelhecimento melhorando a estrutura da parede da aorta através da redução da sua espessura, normalização quantitativa do material elá...

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Beat-to-beat variation in pulse wave velocity during breathing maneuvers

et al. 2013

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Arterial distensibility: acute changes following dynamic exercise in normal subjects

Abstract: Frenneaux. Arterial distensibility: acute changes following dynamic exercise in normal subjects.

Cited by 96 publications

References 33 publications

Changes of central haemodynamic parameters during mental stress and acute bouts of static and dynamic exercise

Changes of central haemodynamic parameters during mental stress and acute bouts of static and dynamic exercise

Resistance training attenuates the effects of aging in the aorta of Wistar rats

Beat-to-beat variation in pulse wave velocity during breathing maneuvers

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