School-based Multicomponent Intervention on Physical Fitness Related to Health and Body Image

Not Applicable

Completed

• Conditions: Body Image; Physical Fitness
• Interventions: Behavioral: "MEXA-SE"; Behavioral: "Espelho, espelho meu"

• Registration Number: NCT02719704
• Lead Sponsor: Santa Catarina Federal University

Brief Summary

The main purpose of this study is to analyse the effect of a multicomponent intervention, applied during one scholar semester, on body composition, strength, flexibility, cardiorespiratory fitness, lipid and metabolic profile, and body image of students from sixth to ninth grade. This is a non-randomized controlled design. Approximately 568 schoolchildren of grades sixth through ninth were recruited from 2 public secondary schools in Florianópolis, Brazil. The main component of the intervention entitled "MEXA-SE" (move yourself) consisted of the implementation of three physical education classes per week with aerobic exercises, strength and flexibility activities. In addition, play activities in school recess, and educational activities on physical activity, sedentary behaviour, eating habits and body image were performed. Data collection was performed before and immediately after 14 weeks of intervention. The primary outcomes included the body composition, strength, flexibility, cardiorespiratory fitness, lipid and metabolic profile, and body image. Other variables included were: physical activity level, sedentary behaviour, and blood pressure level. Other components of the lifestyle (e.g., eating habits), psychological (e.g., self-rated health) also were evaluated in the participants. Descriptive analysis, two-way ANOVA for mixed models and ANCOVA will be applied for within and between comparison groups, if the premises of this test are met. The level of significance for the study was 5% for two-tailed tests.

Detailed Description

Not available

Study Timeline

• Study Start: 2015-03
• Primary Completion: 2015-07
• Study Completion: 2015-07
• Study First Submitted: 2016-02-29
• Status Verified: 2016-03
• Study First Submitted QC: 2016-03-21
• Last Update Submitted: 2016-03-21
• Study First Posted: 2016-03-25
• Last Update Posted: 2016-03-25

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 568

Inclusion Criteria

• Students volunteering as participation;
• Students regularly enrolled from the 6th to the 9th grades in the Florianópolis municipal school system.

Exclusion Criteria

• Students of other grades;
• Students who dropout of school;
• Students with incomplete data at baseline and end 14 weeks;
• Students who are absence in the school days of data collection;
• Students who refused to participate in data collection or intervention;

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
"MEXA-SE"	"MEXA-SE"	Intervention on physical fitness, eating habits and body image
"Espelho, espelho meu"	"Espelho, espelho meu"	School-based intervention on body image

Primary Outcome Measures

Name	Time	Method
Change on flexibility	Baseline, 14 weeks	Modified Sit and Reach test (centimeters).
Change on resistance	Baseline, 14 weeks	Measurement by bioelectrical impedance.
Change on reactance	Baseline, 14 weeks	Measurement by bioelectrical impedance.
Change on resistance levels	Baseline, 14 weeks	Modified abdominal test (number of repetitions).
Change on body image	Baseline, 14 weeks	Self-perception (questionnaire).
Change on fat free mass	Baseline, 14 weeks	Measurement by bioelectrical impedance.
Change on cardiorespiratory fitness	Baseline, 14 weeks	20-m shuttle run test (laps).
Change on girth	Baseline, 14 weeks	Anthropometric measurements of girth (centimeters) of relaxed arm and waist.
Change on percent body fat	Baseline, 14 weeks	Measurement by bioelectrical impedance.
Change on body mass index	Baseline, 14 weeks	Anthropometric measurements of body mass (kilograms), height (centimeters) to calculate body mass index (kilograms per square meter).
Change on skinfold thickness	Baseline, 14 weeks	Anthropometric measurements of skinfold thickness (millimeters) of biceps, triceps, subscapular, iliac crest and medial calf.
Change on percent of water	Baseline, 14 weeks	Measurement by bioelectrical impedance.
Change on muscular strength	Baseline, 14 weeks	Handgrip test measured by dynamometer (Kilograms).
Change on lipid	Baseline, 14 weeks	Enzymatic colorimetric test
Change on glucose profile	Baseline, 14 weeks	Enzymatic colorimetric test

Secondary Outcome Measures

Name	Time	Method
Change on leisure physical activity	Baseline, 14 weeks	List of physical activities practiced last week indicating the frequency and duration, commuting to school and preferred leisure activities reported in guided questionnaire.
Change on blood pressure levels	Baseline, 14 weeks	Measured by Automatic blood pressure monitor.
Food consumption	Baseline, 14 weeks	Food consumption reported in guided questionnaire.
Food Knowledge	Baseline, 14 weeks	Knowledge consumption reported in guided questionnaire.
Change on sedentary behaviour (computer time)	Baseline, 14 weeks	Time in computer and / or video games during the week and over the weekend reported in guided questionnaire.
Change on physical activity at school	Baseline, 14 weeks	ActiGraph accelerometers.
Change on sedentary behaviour (television time)	Baseline, 14 weeks	Time in front of television during the week and over the weekend reported in guided questionnaire.

Trial Locations

Locations (1)

Federal University of Santa Catarina; 🇧🇷 Florianópolis, Santa Catarina, Brazil