Banca de QUALIFICAÇÃO: RENATA CARLOS FELIPE

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : RENATA CARLOS FELIPE
DATA : 15/09/2017
HORA: 14:00
LOCAL: Departamento de Fisioterapia (Parecer)
TÍTULO:

Analysis of oxygen uptake kinetics in obese and eutrophic women considering different ergometers and exercise intensities

PALAVRAS-CHAVES:

obesity, oxygen consumption, kinetics, cpx test.

PÁGINAS: 78
GRANDE ÁREA: Ciências da Saúde
ÁREA: Fisioterapia e Terapia Ocupacional
RESUMO:

Contextualization: An evaluation of oxygen consumption kinetics (VO₂) can elucidate issues related to low physical fitness in obese patients. Most of daily activities and work related are performed on submaximas stages of exercise and are have various energetic transitions, how to get out of resting condition to a moderate or vigorous activity in short and repeated times, using different substrates. The ability to change transition from rest to activity, increase in exercise intensity or even stop exercise to rest, involves a hight coordination of cardiovascular, respiratory and neuromuscular systems. Oxygen kinetics provides an adequate approximation of VO₂ transport and utilization processes in muscle. Thus, it was raised the question whether there is a slowing in oxygen kinetics in obese individuals, considering that there are no published studies addressing temporal behavior of VO₂ in obese adults Objective: Analyze and compare VO₂ kinetics in eutrophic and obese women in different ergometers and test loads. Materials and Methods: Cross-sectional observational study, in which obese and non-obese women were evaluated. Volunteers underwent clinical-physical assessment, lung function test, sleep disorders assessment (Epworth Sleepness Scale, Stanford Sleepness Scale, Stanford Snoring Scale), self-perceived fatigue (Fatigue Severity Scale), Manual Grip Strength (Jamar® Dynamometer), evaluation of exercise capacity and VO₂ kinetics through Cardiopulmonary Exercise Test (CPX) and Constant Load Test (CLT), with measurements of gas expired trough CORTEX Metamax 3B On treadmill or bike. A group distribution by ergometer was performed by randomization. Four groups were formed: non-obese evaluated in treadmill (NOT), non-obese in bike (NOB), obese in treadmill (OBT) and obese in bike (OBB). Preliminary results: Were evaluated 142 volunteers, being 100 obese and 42 non-obese. Of this total, 72 volunteers were not included in inclusion criteria, resulting in a final sample of 60 women (15 OBT, 15 OBB, 15 NOT, 15 NOB). Sample was homogeneous in terms of age and height, and as obese had higher values for all anthropometric measures of adiposity. Pulmonary function, manual gripping force and self-perceived fatigue scale score were similar between groups. CPX test was performed by all volunteers. Obese women presented lower VO₂/Kg_peak and HR_Max in two ergometric tests. VO₂/Kg_peak obtained in bike tests, for obese and non-obese, was significantly lower to those obtained in treadmill tests.

MEMBROS DA BANCA:
Externo à Instituição - DANIELLA CUNHA BRANDÃO - UFPE
Externo à Instituição - MICHEL SILVA REIS - UFRJ
Presidente - 1149619 - SELMA SOUSA BRUNO