Autonomic responses induced by aerobic submaximal exercise in obese and overweight adolescents

Cardiology in the Young
Milana D R SantanaVitor E Valenti

Abstract

Graded exercises tests are performed in adult populations; nonetheless, the use of this type of assessment is greatly understudied in overweight and obese adolescents. To investigate heart rate autonomic responses to submaximal aerobic exercise in obese and overweight adolescents. We recruited 40 adolescents divided into two groups: (1) overweight group comprising 10 boys and 10 girls between Z-score +1 and +2 and (2) obese group comprising 10 boys and 10 girls above Z-score >+2. Heart rate variability was analysed before (T1) and after exercise (T2-T4) on treadmill at a slope of 0%, with 70% of the maximal estimated heart rate (220 - age) for 20 minutes. Heart rate in the overweight group was: 93.2±10.52 bpm versus 120.8±13.49 bpm versus 94.6±11.65 bpm versus 93.0±9.23 bpm, and in the obese group was: 92.0±15.41 bpm versus 117.6±16.31 bpm versus 92.1±12.9 bpm versus 91.8±14.33 bpm. High frequency in the overweight group was: 640±633.1 ms2 versus 84±174.66 ms2 versus 603.5±655.31 ms2 versus 762.6±807.21 ms2, and in the obese group was: 628.4±779.81 ms2 versus 65.4±119.34 ms2 versus 506.2±482.70 ms2 versus 677.9±939.05 ms2; and root mean square of successive differences in the overweight group was: 37.9±18.81 ms versus 10.9±8...Continue Reading

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Citations

Jan 24, 2020·Scientific Reports·Letícia Santana de OliveiraVitor E Valenti
May 8, 2021·Surgery for Obesity and Related Diseases : Official Journal of the American Society for Bariatric Surgery·Cicero Jonas R BenjamimVitor E Valenti

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