Impact of Active Video Game on Cardiorespiratory, Macro and Microcirculation Function of Adolescents With Overweight

Professor Fernando Figueira Integral Medicine Institute90 enrolled

Overview

This study evaluates the effects of physical exercise through active videogame in the microcirculation, macrocirculation, cardiorespiratory function and physical fitness in overweight adolescents. For that, they will be randomized into two groups, one being a control group and the other intervention group. The randomization will be made by school. The intervention group will perform the physical exercise through the active video game, three times a week, for 50 minutes, during 8 weeks. Reassessments will be performed before and after the intervention to evaluate the outcome variables.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

NONE

Enrollment

Conditions

Overweight and Obesity Cardiovascular Risk Factor Physical Activity

Interventions

Among the 20 municipal schools, two will be selected between those with 298 or more students (corresponding to the third quartile of the number of students per school). Next will be selected the school in which the adolescents will be submitted to intervention, and the students from the other school will be control. The intervention will aim to promote physical exercise through active video game XBOX 360 with Kinect. The game selected will be Just Dance, to allow the participation of up to four students at the same time. In addition, a gamification protocol will be performed to increase the adolescents engagement in the exercise.

Eligibility

Sex: ALLMin age: 10 YearsMax age: 16 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Overweight or obese adolescent * Students enrolled in public schools Exclusion Criteria: * Motor, cognitive or pulmonary limitation * Genetic syndrome * Pregnancy * Use of medication that changes the lipid or glucose profile * Not being treated for overweight

Locations (2)

Escola Municipal de Ensino Fundamental Governador Antônio Mariz

Campina Grande, Paraíba, Brazil

Escola Municipal de Ensino Fundamental Tiradentes

Campina Grande, Paraíba, Brazil

Outcomes

Primary Outcomes

Microcirculatory blood flow during rest (RF)

Variable measured in perfusion units (PU), obtained during the first five minutes of the microcirculation evaluation protocol by Cutaneous Laser Doppler Flowmetry (LDF).

Time frame: 10 minutes

Maximum blood flow (MF)

Peak blood flow during post-occlusive reactive hyperemia (PORH), expressed in perfusion units (PU).

Time frame: 10 minutes

Area of hyperemia

Scalar numerical variable corresponding to the geometric area related to the process of reflex hyperemia after the mechanism of arterial occlusion, expressed in perfusion units (PU).

Time frame: 10 minutes

Relationship between peak flow during PORH and resting blood flow.

Continuous variable, MF / RF ratio expressed in perfusion units (PU).

Time frame: 10 minutes

PORH index

Scalar numerical variable related to reactive hyperemia after the arterial occlusion. mechanism, expressed in perfusion units (PU)

Time frame: 10 minutes

Occlusion area

Scalar numerical variable corresponding to the geometric area related to the region without reflex hyperemia after the arterial occlusion mechanism, expressed in perfusion units (PU).

Time frame: 10 minutes

Carotid Intima Media Thickness

Variable measured in millimeters, obtained by the maximum value of 3 measurements performed in the right common carotid artery and 3 measurements in the left common carotid artery. Performed with a portable device (General Eletric®, LogicE® model), with a high definition linear transducer.

Time frame: 30 minutes

Femoral Intima Media Thickness

Variable measured in millimeters, obtained by the maximum value of 3 measurements made in the right femoral artery and 3 measurements in the left femoral artery. Performed with a portable device (General Eletric®, LogicE® model), with a high definition linear transducer.

Time frame: 30 minutes

Cardiorespiratory Fitness - Maximum oxygen consumption

Numerical, continuous, expressed in liters per minute per kilogram (l/mim/kg), obtained indirectly through the 20-meter run test.

Time frame: 10 minutes

Flexibility

variable numeric, continuous, expressed in centimeters, obtained through the sit-and-reach test.

Time frame: 5 minutes

Abdominal resistance

numerical, continuous variable, expressed in absolute number of abdominal performed in one minute, obtained through the sit-up test.

Time frame: 2 minutes

Secondary Outcomes

nutritional status

measured weight (kilogram) and height (centimeters) for calculating body mass index, expressed in Kg/m\^2.

Time frame: 10 minutes

abdominal adiposity

measurement of abdominal circumference with inelastic tape, in centimeters.

Time frame: 5 minutes

Blood Pressure

measurement blood pressure (mmHg) through digital tensiometer OMRON.

Time frame: 15 minutes

Lung Function - Forced Expiratory Volume in the first second

Evaluated by spirometry, with a computerized ultrasonic portable spirometer, with flow sensor, Easy One® brand, with internal Winspiro Software upgrade version 1.04 for connection to computer. The course will provide the values of Forced Expiratory Volume in the first second expressed in liters (l) and in percentage of the predicted value individually (%pred).

Time frame: 20 minutes

Lung Function - Total Lung Capacity

Evaluated by spirometry, with a computerized ultrasonic portable spirometer, with flow sensor, Easy One® brand, with internal Winspiro Software upgrade version 1.04 for connection to computer. The course will provide the values of Total Lung Capacity expressed in liters (l) and in percentage of the predicted value individually (%pred).

Time frame: 20 minutes

Strength of the inspiratory and expiratory muscles

Evaluated by digital manovacuometry, through a digital manovacuometer MVD300, will be obtained the measurement of respiratory maximum static pressures, maximum inspiratory pressure regarding inspiratory muscle strength and maximum expiratory pressure regarding the expiratory muscles. Both will be expressed in cmH2O.

Time frame: 20 minutes

Fasting blood glucose