Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Community Based Intervention01:30

Community Based Intervention

171
Community-based interventions in mental health represent a paradigm shift from institution-centered care to treatments embedded within the fabric of local communities. By prioritizing inclusion and leveraging existing societal structures, this approach fosters a supportive environment conducive to addressing mental health challenges while promoting individual dignity and agency.
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
171
Study Designs in Epidemiology01:20

Study Designs in Epidemiology

639
Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
639
Bioavailability Study Design: Healthy Subjects Versus Patients01:15

Bioavailability Study Design: Healthy Subjects Versus Patients

62
Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
62
Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs01:20

Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs

90
Body:Bioequivalence experimental study designs are crucial methodologies used in evaluating and comparing the bioavailability of different drug products. These designs are categorized into various types: completely randomized, randomized block, repeated measures, cross and carry-over, and Latin square designs.Completely randomized designs involve randomly allocating treatments to all subjects participating in the experiment. This allocation is achieved by assigning unique random numbers to...
90
Group Design02:01

Group Design

10.0K
The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between...
10.0K
Clinical Trials01:16

Clinical Trials

10.0K
Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
10.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Design, Development, and Evaluation of Multimodal Conversational Agents for Health Data Registration and Monitoring: Framework Proposal and Pilot Exploratory Study.

Healthcare (Basel, Switzerland)·2026
Same author

Barriers to organizing food and nutrition surveillance in Primary Health Care: scoping review.

Ciencia & saude coletiva·2026
Same author

Epidemiology and healthcare access in Brazilian multiple sclerosis patients: insights from the BRANDO database.

Arquivos de neuro-psiquiatria·2025
Same author

Prevalence of depression or depressive symptoms among engineering students: a systematic review and meta-analysis.

BMJ open·2025
Same author

A Survey on Digital Solutions for Health Services Management: Features and Use Cases from Brazilian National Literature.

Healthcare (Basel, Switzerland)·2025
Same author

Digital Solutions for Health Services and Systems Management: Narrative Review of Certified Software Features in the Brazilian Market.

JMIR medical informatics·2024
Same journal

Digitalization of Intervention Delivery and Its Impact on the Effects of Interventions for Mental Well-Being in Higher Education Students: Systematic Review and Meta-Analysis Protocol.

JMIR research protocols·2026
Same journal

Artificial Intelligence-Mediated Discharge Document for Accessible Health Care (AIM-HEALTH): Protocol for a Prospective, Observational, Noninterventional Study.

JMIR research protocols·2026
Same journal

An Innovative Model of Stroke Care for Rapid Assessment and Discharge of Patients With Transient Ischemic Attack and Stroke in Northeastern Ontario: Protocol for the Implementation and Evaluation of MOTIVE (Mobile Transient Ischemic Attack and Stroke With Adaptive Workflow) Team.

JMIR research protocols·2026
Same journal

Integrative Traditional East Asian Medicine-Based Adjunctive Therapies for Patients With Prostate Cancer Undergoing Standard Cancer Treatment: Protocol for a Systematic Review and Meta-Analysis of Randomized Controlled Trials.

JMIR research protocols·2026
Same journal

Targeted Next-Generation Sequencing for Improved Clinical Outcomes in People Living With Rare Diseases in Global South: Protocol for a Systematic Review and Meta-Synthesis.

JMIR research protocols·2026
Same journal

Evaluation and Comparison of Latent Health Risk Prediction Models for Clinical Triage: Protocol for a Mixed Methods Study.

JMIR research protocols·2026
See all related articles

Related Experiment Video

Updated: Nov 20, 2025

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
06:48

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil

Published on: July 29, 2020

4.8K

Program for Healthier School Cafeterias in Rio Grande do Sul, Brazil: Protocol for a Community-Based Randomized

Mariana Balestrin1, Carla Cristina Bauermann Brasil2, Ericles Andrei Bellei3

  • 1Faculty of Medical Sciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.

JMIR Research Protocols
|January 19, 2021
PubMed
Summary
This summary is machine-generated.

This study evaluated an educational program to improve school cafeteria hygiene and menu quality in Brazil. Results will inform policies for healthier school meals and combat childhood obesity.

Keywords:
healthy dietpediatric obesityschool health servicesschoolssnacks

More Related Videos

Author Spotlight: Exploring the Impact of Reduced Resistance Exercise Volume on Metabolic Health
06:13

Author Spotlight: Exploring the Impact of Reduced Resistance Exercise Volume on Metabolic Health

Published on: December 1, 2023

1.4K
A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement
08:27

A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement

Published on: February 22, 2022

3.4K

Related Experiment Videos

Last Updated: Nov 20, 2025

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
06:48

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil

Published on: July 29, 2020

4.8K
Author Spotlight: Exploring the Impact of Reduced Resistance Exercise Volume on Metabolic Health
06:13

Author Spotlight: Exploring the Impact of Reduced Resistance Exercise Volume on Metabolic Health

Published on: December 1, 2023

1.4K
A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement
08:27

A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement

Published on: February 22, 2022

3.4K

Area of Science:

  • Public Health
  • Nutrition Science
  • Educational Interventions

Background:

  • School cafeterias often offer unhealthy, non-nutritive foods, contributing to poor eating habits.
  • There's a lack of evidence on effective interventions to prevent and treat obesity in school settings.
  • Improving school food environments is crucial for student health.

Purpose of the Study:

  • To verify the efficacy of an educational intervention program in improving hygienic conditions and menu composition in school cafeterias.
  • To assess the impact of the intervention on the levels of food processing in school meals.
  • To provide evidence for developing effective strategies for safe and healthy school meals.

Main Methods:

  • A randomized, parallel, two-arm, community-based controlled study involving 54 schools in Rio Grande do Sul, Brazil.
  • The intervention group received a 10-week, 160-hour distance-learning course on food safety and nutrition guidelines.
  • The control group received only printed guidelines; outcomes measured included cafeteria hygiene and menu composition.

Main Results:

  • Data collection was completed in 2019, with analysis ongoing.
  • Results are anticipated in 2021.
  • This study represents a significant effort to gather empirical data on school cafeteria interventions in Brazil.

Conclusions:

  • This is potentially the first randomized controlled trial of its kind in Brazilian school cafeterias.
  • The findings will inform public food and nutritional security policies.
  • Evidence generated will support the development of effective strategies for healthier school meals.