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

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

Impact of Active Video Game Cardiorespiratory, Macro and Microcirculation Function of Adolescents With Overweight: Randomized Intervention Study

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.

Intervention with two comparison groups. The control or experimental group will be randomly defined by school "Experimental" group: will perform physical activity through the use of the active videogame associated with a gamification strategy three times a week for 50 minutes for a period of 8 weeks. Control group: there will be no intervention proposal, only used for data comparison.

The adolescents will be submitted to physical activity with active video game for 50 minutes, 3 times a week, for a period of eight weeks. The XBOX360® platform will be used with the Kinect accessory (Microsoft®) and Just Dance will be the selected game. The music used for intervention will be previously selected, including those that can lead to moderate intensity, and assembled in blocks of 10. For each week, a new block and challenges must be elaborated to increase the motivation to carry out the physical activity.

A follow-up will be done for eight weeks to compare the variables. The adolescents in this group will be interviewed monthly to detect changes in eating habits and lifestyle.

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.

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

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).

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

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).

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.

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.

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

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

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

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).

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).

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.

Continuous numeric variable obtained by the Friedewald formula= Cholesterol Total - (High Density Lipoprotein + Triglyderides/5), expressed in mg/dL.

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