Banca de QUALIFICAÇÃO: ELIETE SAMARA BATISTA DOS SANTOS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : ELIETE SAMARA BATISTA DOS SANTOS
DATE: 06/12/2023
TIME: 09:00
LOCAL: Banca de qualificação virtual
TITLE:

Patterns of Physical Activity and Associations with Physical Fitness and Body Composition in Children with Obesity

KEY WORDS:

Movment behaviour

Intensity

Infancy

PAGES: 56
BIG AREA: Ciências da Saúde
AREA: Educação Física
SUMMARY:

While studies demonstrate the importance of associations between ACC (average acceleration), IG (intensity gradient), MX metrics, and health outcomes, previous research has been conducted on a population of children with healthy weight. There is a gap regarding the physical activity patterns of children with obesity. This study aimed to describe the patterns of physical activity in children with obesity, investigate the associations between physical activity patterns on fitness and body composition, compare the physical activity profile of children with obesity with that of normal-weight children, and apply translational metrics to illustrate the profile of physical activity volume and intensity distribution. A sample of 51 children (23 females) with a mean age of 9.3 ± 1.6 years, participants in the Childhood Obesity Treatment Center at the Varela Santiago Children's Hospital in Natal, RN, was studied. Physical activity (PA) was assessed through accelerometry, and raw acceleration values were used to calculate average acceleration (ACC), intensity gradient (IG), and metrics of the most active minutes of the day (MX). The activity pattern of the sample was analyzed, along with the associations between ACC and IG with Body Mass Index (BMI), BMI Z-score (zBMI), BMI percentile corresponding to the 95th percentile (%BMIp95), percentage of body fat (%BF), waist-to-hip ratio (WHR), handgrip strength, systolic blood pressure Z-score (zSBP), diastolic blood pressure Z-score (zDBP), horizontal jump, and cardiorespiratory fitness (CRF). The children had an ACC of 37.4 ± 10.9 mg and IG of -2.19 ± 0.16. They spent 582.5 ± 80.9 minutes in sedentary behavior, 290.4 ± 48.7 minutes in light activity, 41 ± 21.3 minutes in moderate-to-vigorous physical activity (MVPA), and 5.7 ± 6.1 minutes in vigorous physical activity (VPA). The amount of VPA differed between genders, with an average for boys of 54.7 ± 28.9 minutes/day and for girls 37.3 ± 19.1 minutes/day. IG showed negative associations with BMI and WHR, and positive associations with CRF. An increase in IG led to a decrease of -14.45 in BMI, -0.22 in WHR, and an increase of 12.68 in CRF. ACC did not show associations with the variables in the adjusted models. Children with obesity exhibit low levels of physical activity, remaining below the levels of normal-weight children of the same age group. The intensity distribution of PA may be important for improving BMI, WHR, and CRF in children with obesity.

COMMITTEE MEMBERS:
Presidente - 3138718 - RICARDO SANTOS OLIVEIRA
Interno - 1989744 - HASSAN MOHAMED ELSANGEDY
Externo à Instituição - INÁCIO CROCHEMORE MOHNSAM DA SILVA
Externa à Instituição - LEONY MORGANA GALLIANO
Externo à Instituição - ROMULO ARAUJO FERNANDES