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

Effect of a Multicomponent Intervention Program on Physical Fitness Related to Health and Body Image: School-based Study With Adolescents of Florianópolis, Santa Catarina, Brazil

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.

Study Overview

• Status: Completed
• Conditions: Body Image; Physical Fitness
• Intervention / Treatment: Behavioral: "MEXA-SE"; Behavioral: "Espelho, espelho meu"

• Study Type: Interventional
• Enrollment (Actual): 568
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Brazil
  • Santa Catarina
    • Florianópolis, Santa Catarina, Brazil, 88040900
      • Federal University of Santa Catarina

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 10 years to 18 years (Child, Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

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 Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: "MEXA-SE"; Intervention on physical fitness, eating habits and body image	Behavioral: "MEXA-SE"; MEXA-SE (move yourself) was structured into three main components: A) Physical fitness: The first component was to increase time in moderate to vigorous physical activity during Physical Education lessons. There were also prompts to help students to engage in increased physical activity during school recess; B) Eating habits: The second component consisted of six sessions (45 minutes per session) designed to promote reflection and positive changes in eating habits and health care (to improve knowledge and eating habits), conducted by nutritionist; C) Body image: The third component was composed of 3 sessions (45 minutes per session) focused on body image satisfaction ("Espelho, espelho meu": School based Intervention) conducted by Physical Education researcher.
No Intervention: Control; School of the control group carried out one semester with the regular and traditional activities. The control school had three physical educations lessons per week, similar of experimental schools.
Experimental: "Espelho, espelho meu"; School-based intervention on body image	Behavioral: "Espelho, espelho meu"; Behavioral: "Espelho, espelho meu": School based intervention on body image. Body image is worked in four 45 minutes sessions, conducted with a frequency of once a week by a researcher. The topics covered in these sessions refer to: Beauty Standards (media influence and formation of body image), individual qualities (individual and classmates qualities) and selfesteem. These meetings will be held through video, lecture, dynamics, photo sessions and preparation of posters.

What is the study measuring?

Primary Outcome Measures

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

Secondary Outcome Measures

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

Collaborators and Investigators

• Sponsor: Santa Catarina Federal University
• Investigators: Study Director: Edio Luiz Petroski, Doctor, Federal University of Santa Catarina; Principal Investigator: Cilene Rebolho Martins, PhD Student, Federal University of Santa Catarina; Principal Investigator: Juliane Berria, PhD Student, Federal University of Santa Catarina; Principal Investigator: Giseli Minatto, PhD Student, Federal University of Santa Catarina; Principal Investigator: Luiz R. A. de Lima, PhD Student, Federal University of Santa Catarina; Principal Investigator: Jéssika A. J. Vieira, Master Degree Student, Federal University of Santa Catarina; Principal Investigator: André Machado, Master Degree Student, Federal University of Santa Catarina

Publications and helpful links

General Publications

• Martins PC, de Lima LRA, Berria J, Petroski EL, da Silva AM, Silva DAS. Association between phase angle and isolated and grouped physical fitness indicators in adolescents. Physiol Behav. 2020 Apr 1;217:112825. doi: 10.1016/j.physbeh.2020.112825. Epub 2020 Jan 25.

Study record dates

Study Major Dates

• Study Start: March 1, 2015
• Primary Completion (Actual): July 1, 2015
• Study Completion (Actual): July 1, 2015

Study Registration Dates

• First Submitted: February 29, 2016
• First Submitted That Met QC Criteria: March 21, 2016
• First Posted (Estimate): March 25, 2016

Study Record Updates

• Last Update Posted (Estimate): March 25, 2016
• Last Update Submitted That Met QC Criteria: March 21, 2016
• Last Verified: March 1, 2016

More Information

Terms related to this study

• Other Study ID Numbers: MEXA-SE

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: Yes