Comparação das respostas fisiológicas entre diferentes testes funcionais em obesos
obesity affects rightly functional capacity diminishing the cardiovascular system efficiency and oxygen uptake (VO2). Field tests, such as, Incremental Shuttle Walking Test (ISWT) and Six Minute Walk Test (6MWT) has been employed as alternative of Cardiopulmonary Exercise Test (CPX), to functional a...
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| Formato: | Dissertação |
| Idioma: | por |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/16746 |
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| Resumo: | obesity affects rightly functional capacity diminishing the
cardiovascular system efficiency and oxygen uptake (VO2). Field tests, such as,
Incremental Shuttle Walking Test (ISWT) and Six Minute Walk Test (6MWT) has
been employed as alternative of Cardiopulmonary Exercise Test (CPX), to functional
assessing for conditions which transport of oxygen to peripheral is diminished.
Nevertheless, the knowing about metabolic variables response in real time and it
comparing among different maximal and submaximal tests in obese is absent. Aim:
to compare cardiopulmonary, metabolic response during CPX, ISWT and 6MWT and
to analyse it influence of adiposity markers in obese. Material e Method: crosssectional,
prospective study. Obese included if: (BMI>30Kg/m2; FVC>80%), were
assessed as clinical, anthropometric (BMI, body adiposity index-BAI, waist-WC, hip-
HC and neck-NC circumferences) and spirometry (forced vital capacity-FVC, Forced
expiratory volume-1°second-FEV1, maximal voluntary ventilation-MVV) variables.
Obese performed the sequence of tests: CPX, ISWT and 6MWT. Throughout tests
was assessed breath-by-breath by telemetry system (Cortex-Biophysik-Metamax3B)
variables; oxygen uptake on peak of activity (VO2peak); carbon dioxide production
(VCO2); Volume Expiratory (VE); ventilatory equivalents for VO2 (VE/VO2) and CO2
(VE/VCO2); respiratory exchange rate (RER) and perceived effort-Borg6-20). Results:
15 obese (10women) 39.4+10.1years, normal spirometry (%CVF=93.7+9.7) finished
all test. They have BMI (43.5+6.6kg/m2) and different as %adiposity
(BAI=50.0+10.5% and 48.8+16.9% respectively women and men). Difference of
VO2ml/kg/min and %VO2 were finding between CPX (18.6+4.0) and 6MWT
(13.2+2.5) but not between ISWT (15.4+2.9). Agreement was found for ISWT and
CPX on VO2Peak (3.2ml/kg/min; 95%; IC-3.0 9.4) and %VO2 (16.4%). VCO2(l/min)
confirms similarity in production for CPX (2.3+1.0) and ISWT (1.7+0.7) and difference
for 6MWT (1.4+0.6). WC explains more the response of CPX and ISWT than other
adiposity markers. Adiposity diminishes 3.2% duration of CPX. Conclusion: ISWT
promotes similar metabolic and cardiovascular response than CPX in obese. It
suggesting that ISWT could be useful and reliable to assess oxygen uptake and
functional capacity in obese |
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