Cardiorespiratory responses during progressive maximal exercise test in healthy children
BACKGROUND: Little is known about cardiorespiratory and metabolic response in healthy children during progressive maximal exercise test.
OBJECTIVE: To test the hypothesis that children show different responses in cardiorespiratory and metabolic parameters during progressive maximal exercise test when compared with adults.
METHODS: Twenty-five healthy children (gender, 15M/10F; age, 10.2 +/- 0.2) and 20 healthy adults (gender, 11M/9F; age, 27.5 +/- 0.4) underwent a progressive treadmill cardiopulmonary test until exhaustion to determine the maximal aerobic capacity and ventilatory anaerobic threshold (VAT).
RESULTS: The peak workload (5.9+/-0.1 vs 5.6+/-0.1 mph, respectively; p>0.05), exercise time (9.8+/-0.4 vs 10.2+/-0.4 min, respectively; p>0.05), and relative aerobic fitness (VO(2)peak, 39.4+/-2.1 vs 39.1+/-2.0 ml*kg(-1)*min-1, respectively; p>0.05) were similar in children and adults. At ventilatory anaerobic threshold, the heart rate, VO(2) ml*kg(-1)*min-1, respiratory rate (RR), functional estimate of dead space (VD/VT), ventilatory equivalent for oxygen (VE/VO(2)) and end-tidal pressure for oxygen (PETO2) were higher in children, while tidal volume (VT), O(2) pulse and end-tidal pressure for carbon dioxide (PETCO(2)) were lower. At peak of exercise, children showed higher RR and VD/VT. However, O(2) pulse, VT, pulmonary ventilation, PETCO(2) and respiratory exchange ratio were lower in children than adults.
CONCLUSION: Cardiorespiratory and metabolic responses during progressive exercise test are different in children as compared to adults. Specifically, these differences suggest that children have lower cardiovascular and ventilatory efficiency. However, children showed higher metabolic efficiency during exercise. In summary, despite the differences observed, children showed similar levels of exercising capacity when compared with adults.
| Errataetall: |
CommentIn: Arq Bras Cardiol. 2011 Apr;96(4):340; author reply 341. - PMID 21552654 |
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2010 |
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| Erschienen: |
2010 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:94 |
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| Enthalten in: |
Arquivos brasileiros de cardiologia - 94(2010), 4 vom: 02. Apr., Seite 493-9 |
| Sprache: |
Portugiesisch |
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| Weiterer Titel: |
Comportamento cardiorrespiratório em crianças saudáveis durante o exercício progressivo máximo |
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| Beteiligte Personen: |
Prado, Danilo Marcelo Leite do [VerfasserIn] |
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| Themen: |
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| Anmerkungen: |
Date Completed 30.11.2010 Date Revised 06.06.2019 published: Print-Electronic CommentIn: Arq Bras Cardiol. 2011 Apr;96(4):340; author reply 341. - PMID 21552654 Citation Status MEDLINE |
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NLM195603583 |
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| 100 | 1 | |a Prado, Danilo Marcelo Leite do |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Cardiorespiratory responses during progressive maximal exercise test in healthy children |
| 246 | 3 | 3 | |a Comportamento cardiorrespiratório em crianças saudáveis durante o exercício progressivo máximo |
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| 500 | |a Date Completed 30.11.2010 | ||
| 500 | |a Date Revised 06.06.2019 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a CommentIn: Arq Bras Cardiol. 2011 Apr;96(4):340; author reply 341. - PMID 21552654 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a BACKGROUND: Little is known about cardiorespiratory and metabolic response in healthy children during progressive maximal exercise test | ||
| 520 | |a OBJECTIVE: To test the hypothesis that children show different responses in cardiorespiratory and metabolic parameters during progressive maximal exercise test when compared with adults | ||
| 520 | |a METHODS: Twenty-five healthy children (gender, 15M/10F; age, 10.2 +/- 0.2) and 20 healthy adults (gender, 11M/9F; age, 27.5 +/- 0.4) underwent a progressive treadmill cardiopulmonary test until exhaustion to determine the maximal aerobic capacity and ventilatory anaerobic threshold (VAT) | ||
| 520 | |a RESULTS: The peak workload (5.9+/-0.1 vs 5.6+/-0.1 mph, respectively; p>0.05), exercise time (9.8+/-0.4 vs 10.2+/-0.4 min, respectively; p>0.05), and relative aerobic fitness (VO(2)peak, 39.4+/-2.1 vs 39.1+/-2.0 ml*kg(-1)*min-1, respectively; p>0.05) were similar in children and adults. At ventilatory anaerobic threshold, the heart rate, VO(2) ml*kg(-1)*min-1, respiratory rate (RR), functional estimate of dead space (VD/VT), ventilatory equivalent for oxygen (VE/VO(2)) and end-tidal pressure for oxygen (PETO2) were higher in children, while tidal volume (VT), O(2) pulse and end-tidal pressure for carbon dioxide (PETCO(2)) were lower. At peak of exercise, children showed higher RR and VD/VT. However, O(2) pulse, VT, pulmonary ventilation, PETCO(2) and respiratory exchange ratio were lower in children than adults | ||
| 520 | |a CONCLUSION: Cardiorespiratory and metabolic responses during progressive exercise test are different in children as compared to adults. Specifically, these differences suggest that children have lower cardiovascular and ventilatory efficiency. However, children showed higher metabolic efficiency during exercise. In summary, despite the differences observed, children showed similar levels of exercising capacity when compared with adults | ||
| 650 | 4 | |a Comparative Study | |
| 650 | 4 | |a English Abstract | |
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Braga, Ana Maria F Wanderley |e verfasserin |4 aut | |
| 700 | 1 | |a Rondon, Maria Urbana Pinto |e verfasserin |4 aut | |
| 700 | 1 | |a Azevedo, Luciene Ferreira |e verfasserin |4 aut | |
| 700 | 1 | |a Matos, Luciana D N J |e verfasserin |4 aut | |
| 700 | 1 | |a Negrão, Carlos Eduardo |e verfasserin |4 aut | |
| 700 | 1 | |a Trombetta, Ivani Credidio |e verfasserin |4 aut | |
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