Central and peripheral circulatory changes after training of the arms or legs

Clausen, Jan; Klausen, Kurt Klaudi; Rasmussen, Bodil Steen; Trap‐Jensen, J.

doi:10.1152/ajplegacy.1973.225.3.675

Cited by 225 publications

(128 citation statements)

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“…This hemodynamic response cannot be explained by changes in LV filling alone, since EDVr and ESVr both decline at this point. We could not measure arterial blood pressure during arm cranking in this study, but previous studies have shown higher SBPs during arm exercise at comparable HRs (7,8,12). It remains possible that postexertional reduction in afterload or increased LV contractility contributed to this response.…”

Section: Arms Vs Leg Exercise: Comparison Of LV Responsementioning

confidence: 86%

“…The Frank-Starling mechanism is a key determinant of LV function during leg exercise (5,18,20,27,43,48) and orthostatic challenges alone can limit ventricular filling pressures and reduce SV (4). Despite recruitment of neurohumoral mechanisms to augment hemodynamics during arm exercise (i.e., peripheral vasoconstriction and augmented arterial pressure), LV filling remained less than leg exercise (2,7,8,28). The attenuated LVEF response during arm exercise may also be related to limited systolic function.…”

Section: Arms Vs Leg Exercise: Comparison Of LV Responsementioning

confidence: 98%

“…(3,7,8,28). We proposed that augmentation of venous return during arm exercise by either light leg pedaling or LBPP would improve LV filling and output, and although small increases were seen at lower exercise intensities (particularly 30% V O 2 peak ) the main effect failed to reach statistical significance (P ϭ 0.07).…”

Section: Lbpp and LV Function During Arm Exercisementioning

confidence: 99%

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Left ventricular function during arm exercise: influence of leg cycling and lower body positive pressure

Goodman¹,

Freeman²,

Goodman³

2007

Journal of Applied Physiology

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Goodman JM, Freeman MR, Goodman LS. Left ventricular function during arm exercise: influence of leg cycling and lower body positive pressure. J Appl Physiol 102: 904 -912, 2007. First published November 30, 2006; doi:10.1152/japplphysiol.00511.2006.-The purpose of this study was to characterize left ventricular (LV) diastolic filling and systolic performance during graded arm exercise and to examine the effects of lower body positive pressure (LBPP) or concomitant leg exercise as means to enhance LV preload in aerobically trained individuals. Subjects were eight men with a mean age (ϮSE) of 26.8 Ϯ 1.2 yr. Peak exercise testing was first performed for both legs [maximal oxygen uptake (V O2) ϭ 4.21 Ϯ 0.19 l/min] and arms (2.56 Ϯ 0.16 l/min). On a separate occasion, LV filling and ejection parameters were acquired using non-imaging scintography using in vivo red blood cell labeling with technetium 99 m first during leg exercise performed in succession for 2 min at increasing grades to peak effort. Graded arm exercise (at 30, 60, 80, and 100% peak V O2) was performed during three randomly assigned conditions: control (no intervention), with concurrent leg cycling (at a constant 15% leg maximal V O2) or with 60 mmHg of LBPP using an Anti G suit. Peak leg exercise LV ejection fraction was higher than arm exercise (60.9 Ϯ 1.7% vs. 55.9 Ϯ 2.7%; P Ͻ 0.05) as was peak LV enddiastolic volume was reported as % of resting value (110.3 Ϯ 4.4% vs. 97 Ϯ 3.7%; P Ͻ 0.05) and peak filling rate (end-diastolic volume/s; 6.4 Ϯ 0.28% vs. 5.2 Ϯ 0.25%). Concomitant use of either lowintensity leg exercise or LBPP during arm exercise failed to significantly increase LV filling or ejection parameters. These observations suggest that perturbations in preload fail to overcome the inherent hemodynamic conditions present during arm exercise that attenuate LV performance. arm exercise; ventricle; end-diastolic volume; afterload; lower body positive pressure THE CARDIOVASCULAR RESPONSES to dynamic leg exercise have been well characterized using a wide range of techniques; however, data describing left ventricular (LV) hemodynamic function during arm exercise, particularly perturbations that influence LV filling and ejection characteristics, have been limited by technical aspects of cardiac imaging and temporal resolution. Steady-state measures of stroke volume and cardiac output during arm exercise have been well characterized mostly by indirect Fick methods (1,8,12,17,23,24,34). At a given submaximal oxygen consumption (V O 2 ) arm cranking results in a higher heart rate and blood pressure but a lower stroke volume (SV) at a similar relative intensity [% maximal V O 2 (V O 2 max )] (6,28,36,42). Maximal arm cranking exercise elicits a lower peak V O 2 , cardiac output (Q ), stroke volume (SV), and heart rate (HR) compared with leg exercise (6,12,28,35,36,42). The lower SV and Q values have been attributed to blood pooling secondary to the orthostatic challenge of inactive lower limbs (35). In addition, the reflex sympathetic vasoconstriction ...

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Section: Arms Vs Leg Exercise: Comparison Of LV Responsementioning

confidence: 86%

Section: Arms Vs Leg Exercise: Comparison Of LV Responsementioning

confidence: 98%

Section: Lbpp and LV Function During Arm Exercisementioning

confidence: 99%

See 1 more Smart Citation

Left ventricular function during arm exercise: influence of leg cycling and lower body positive pressure

Goodman¹,

Freeman²,

Goodman³

2007

Journal of Applied Physiology

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show abstract

“…O componente isométrico do trabalho de estabilização do corpo, realizado pela musculatura dos MMSS e do tórax, provoca elevação acentuada da pressão arterial (PA) [3][4][5][6][7][8] . A freqüência cardíaca (FC) encontra-se elevada no iní-cio dos programas de treinamento, especialmente nos portadores de lesão medular alta (>T6), nos quais há alteração do centro de controle cardiovascular da medula [5][6][7][8][9] .…”

Section: Riscos De Doença Arterial Coronária Em Deficientes Físicos Dunclassified

“…Alterações em parâmetros circulatórios centrais e periféricos foram comparados por Clausen e col 4 , utilizando metodologia invasiva antes e após treinamento de alta e moderada intensidade de MMSS e MMII, respectivamente. Foram observados aumento do VO2máx (9,9 a 15,9%), e do trabalho total no grupo de treinamento de alta intensidade.…”

Section: Ergometria De Membros Superiores -unclassified

Ergometria de membros superiores. Um método importante na avaliação cardiocirculatória ao exercício

Haddad¹

1997

Arq. Bras. Cardiol.

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Endurance Exercise and the Regulation of Visceral and Cutaneous Blood Flow

Johnson¹

2000

Endurance in Sport

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Central and peripheral circulatory changes after training of the arms or legs

Abstract: increase in stroke volume or other central circulatory JENS TRAP-JENSEN. Central and peripheral circulatory changes after training of the arms or legs. Am.

Cited by 225 publications

References 0 publications

Left ventricular function during arm exercise: influence of leg cycling and lower body positive pressure

Left ventricular function during arm exercise: influence of leg cycling and lower body positive pressure

Ergometria de membros superiores. Um método importante na avaliação cardiocirculatória ao exercício

Endurance Exercise and the Regulation of Visceral and Cutaneous Blood Flow

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