The relationship between heart rate and oxygen consumption in heart transplant recipients during a cardiopulmonary exercise test

Aerobic Exercise Prescription in Adult Heart Transplant Recipients: A Review

“…We observed that the %HRR versus %VO 2 R showed to be the closest relationship followed by %peak heart rate versus %peak VO 2 and absolute heart rate versus absolute VO 2 . Despite this, the perfect reliability of the heart rate versus VO 2 was not found in any relationship [34]. We confirmed, for the first time, the widespread idea that the use of the heart rate as an indirect method of exercise training's intensity prescription (without a cardiopulmonary exercise test) does not seems to be a good tool in heart transplant recipients, as it is in other groups of patients ( Figure 1).…”

“…In the next step, our group tried to answer this question. We evaluated the closest relationship between heart rate and VO 2 (%peak heart rate vs. %peak VO 2 ; %HRR vs. %VO 2 R; or absolute heart rate vs. absolute VO 2 ) in heart transplant recipients during a treadmill cardiopulmonary exercise test [34]. We observed that the %HRR versus %VO 2 R showed to be the closest relationship followed by %peak heart rate versus %peak VO 2 and absolute heart rate versus absolute VO 2 .…”

A meta-analysis of cardiopulmonary exercise testing in pre-pubertal healthy children produces new information

“…[56][57][58][59][60] Reports also point out that a cycle ergometer test may require an average of 10 additional minutes to achieve maximal effort than tests on treadmills, 61 because (i) subjects on the cycle ergometer have an inability to keep up with their performance; [61][62][63] (ii) a greater activation of MedicalExpress (Sao Paulo, online) 2016 February;3(1):M160102 Cardiopulmonary exercise testing in healthy children Tavares AC large amounts of muscle mass occurs during a treadmill test; 58,59,61 (iii) more discomfort in the thigh muscles occurs during the cycle ergometer test; (iv) less intensity of effort and protocol duration to maximize aerobic energy transfer is achieved on the cycle ergometer. 57,59,61 The 18-20% differences on peak VO 2 values found in this analysis were similar to the 22% difference reported elsewhere; 61 however, smaller differences have also been reported: 7%, 61 8%, 24,64 or 12% higher on a treadmill.…”

Efeito agudo do exercício físico em piscina aquecida versus em solo sobre a pressão arterial e variabilidade da frequência cardíaca em indivíduos transplantados cardíacos

“…Apesar das melhoras hemodinâmicas, na capacidade física e na qualidade de vida em comparação a situação pré-TX que este paciente se encontrava 20,21 , indivíduos com TX ainda apresentam capacidade física inferior à de seus pares sedentários 19,22,23 . Além disso, os pacientes podem apresentar diversas comorbidades.…”

“…Com isso, indivíduos com TX apresentam elevada FC de repouso, atraso no aumento da FC em resposta ao exercício físico, menores níveis de FC no esforço máximo, e lenta redução da FC pós-exercício quando comparados com indivíduos saudáveis 15,17,18 . Além disso, há uma baixa reprodutibilidade entre a resposta da FC e consumo de oxigênio (VO2) durante o exercício progressivo máximo em indivíduos com TX 19 .…”