INTRODUCTION AND OBJECTIVES: The effect of obesity on cardiac function is still under discussion. The objective of this study was to assess cardiopulmonary capacity in morbidly obese patients. Patients and method. A symptom-limited cardiopulmonary exercise stress test was carried out in 31 morbidly obese patients (BMI 50 9 kg/m2) and 30 normal controls (BMI 24 2 kg/m2. Cardiovascular function was evaluated using the oxygen pulse (oxygen uptake/heart rate). RESULTS: There were no differences in age, sex and height between both groups. During the effort the obese subjects presented greater oxygen uptake, heart rate, systolic arterial pressure and minute ventilation and shorter test duration than control group (14 3 vs 27 4 min; p < 0.001). Oxygen pulse values were higher in obese patients. However, after oxygen uptake indexation by fat free mass, these differences disappeared, suggesting a similar cardiovascular function. At the end of the exercise, the control group reached 96% of their age-predicted maximal heart rate and their respiratory exchange ratio was 1 0.2. Obese patients only reached 86% and 0.87 0.2, respectively. CONCLUSIONS: Due to their need of more energy output to move total body mass morbidly obese patients have a reduced exercise capacity. They finish the test having done a submaximal exercise. However, during this effort they show a normal cardiopulmonar capacity.
RCT Entities:
INTRODUCTION AND OBJECTIVES: The effect of obesity on cardiac function is still under discussion. The objective of this study was to assess cardiopulmonary capacity in morbidly obesepatients. Patients and method. A symptom-limited cardiopulmonary exercise stress test was carried out in 31 morbidly obesepatients (BMI 50 9 kg/m2) and 30 normal controls (BMI 24 2 kg/m2. Cardiovascular function was evaluated using the oxygen pulse (oxygen uptake/heart rate). RESULTS: There were no differences in age, sex and height between both groups. During the effort the obese subjects presented greater oxygen uptake, heart rate, systolic arterial pressure and minute ventilation and shorter test duration than control group (14 3 vs 27 4 min; p < 0.001). Oxygen pulse values were higher in obesepatients. However, after oxygen uptake indexation by fat free mass, these differences disappeared, suggesting a similar cardiovascular function. At the end of the exercise, the control group reached 96% of their age-predicted maximal heart rate and their respiratory exchange ratio was 1 0.2. Obesepatients only reached 86% and 0.87 0.2, respectively. CONCLUSIONS: Due to their need of more energy output to move total body mass morbidly obesepatients have a reduced exercise capacity. They finish the test having done a submaximal exercise. However, during this effort they show a normal cardiopulmonar capacity.
Authors: Jennalee S Wooldridge; Matthew S Herbert; Jeffrey Hernandez; Cara Dochat; Kathryn M Godfrey; Marianna Gasperi; Niloofar Afari Journal: Int J Behav Med Date: 2019-08
Authors: Adeola A Sanni-Ajibaye; Anson M Blanks; Cassandra C Derella; Abigayle B Simon; Paula Rodriguez-Miguelez; Jacob Looney; Jinhee Jeong; Jeffrey Thomas; David W Stepp; Neal L Weintraub; Xiaoling Wang; Ryan A Harris Journal: Physiol Rep Date: 2022-05
Authors: Linda Mustelin; Kirsi H Pietiläinen; Aila Rissanen; Anssi R Sovijärvi; Päivi Piirilä; Jussi Naukkarinen; Leena Peltonen; Jaakko Kaprio; Hannele Yki-Järvinen Journal: Am J Physiol Endocrinol Metab Date: 2008-05-06 Impact factor: 4.310