Ramped vs. Standard Bruce Protocol in Children: A Comparison of Exercise Responses

in Pediatric Exercise Science
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We compared maximal exercise parameters obtained using both a ramped Bruce (BR) and a standard Bruce treadmill protocol (BS) in 44 healthy children (9.9 – 1.9 yr) and adolescents (15.9 – 1.7 yr). The average weight and height for children was 36.7 – 10.7 kg and 141.2 – 13.2 cm, while for adolescents was 64.4 – 13.9 kg and 168.9 – 7.5 cm. No significant differences were found in peak heart rate (HRpeak) between protocols for children (BS: 198 – 10; BR: 196 – 11 bpm) or adolescents (BS:193 – 2; BR:192 – 11 bpm). Peak oxygen uptake (V̇O2peak) was also not significantly different for children (BS: 1.81 – 0.64; BR: 1.84 – 0.74 L/min) or adolescents (BS: 2.66 – 0.61; BR: 2.72 – 0.67 L/min). Based on our results, we conclude that equivalent peak HR and V̇O2 values can be obtained in normal children and adolescents using a standard or a ramped Bruce protocol.

The authors are with the Departments of Pediatrics1 and Biomedical Engineering2, Case Western Reserve University and Rainbow Babies and Children’s Hospital, Cleveland, OH.

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