ArticleRevista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo
MAXIMUM HEART RATE MEASURED VERSUS ESTIMATED BY DIFFERENT EQUATIONS DURING THE CARDIOPULMONARY EXERCISE TEST IN OBESE ADOLESCENTS.
Article in Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
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2 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- Prediction equations for maximal heart rate in obese and nonobese children and adolescents: a systematic review and meta-analysis.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo · 2023Pooled it
- Does mental exertion during incremental exercise change substrate oxidation and cardiorespiratory outcomes in individuals with overweight?Physiological reports · 2025Article
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10 authors at 1 institution in 1 country.
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Abstract
objectiveTo compare the values of measured maximum heart rate (HRmax) and maximum heart rate estimated by different equations during the cardiopulmonary exercise test (CPET) in obese adolescents.
methodsThis is a cross-sectional study. Adolescents aged between 15 and 18 years old, with obesity (BMI Z-score>2.0) were included. Demographic and anthropometric data were collected, followed by CPET, recording HRmax. The highest heart rate reached at peak exercise was considered as HRmax. The comparison between measured and estimated HRmax values was performed using four previous equations. Descriptive statistics and the ANOVA test (Bonferroni post-test) were used.
resultsFifty-nine obese adolescents were included, 44% of them male. The mean age was 16.8±1.2 years old and the BMI (Z-score) was 3.0±0.7. At peak exercise, the mean HRmax (bpm) was 190.0±9.2, the respiratory coefficient was 1.2±0.1, and the VO2max (mL/kg/min) was 26.9±4.5. When comparing the measured values of HRmax with those estimated by the different formulas, the equations "220-age", "208-0.7 x age" and "207-0.7 x age" were shown to overestimate (p<0.001) the measured HRmax results in obese adolescents. Only the "200-0.48 x age" equation presented similar results (p=0.103) with the values measured in the CPET.
conclusionsThe findings of the present study demonstrate that the equation "200-0.48 x age" seems to be more adequate to estimate HRmax in obese adolescents.
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