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

Study Designs in Epidemiology01:20

Study Designs in Epidemiology

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 case-control studies.
Study Design in Statistics01:15

Study Design in Statistics

A study design is a set of techniques that allow a researcher to collect and analyze data from different variables defined for a specific research problem. Statistics is commonly for effective study design and more robust experiments,
Does aspirin reduce the risk of heart attacks? Is one brand of fertilizer more effective at growing roses than another? Is fatigue as dangerous to a driver as the influence of alcohol? Questions like these are answered using randomized experiments with proper...
What is an Experiment?01:12

What is an Experiment?

An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two variables. When one variable causes change in another, we call the first variable the explanatory or independent variable. The affected variable is called the response or dependent variable. In a randomized experiment, the researcher manipulates values of the explanatory variable and measures the resulting changes in the response variable. The...
Bioavailability Study Design: Healthy Subjects Versus Patients01:15

Bioavailability Study Design: Healthy Subjects Versus Patients

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,...
Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs01:15

Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs

Bioequivalence experimental study designs play a pivotal role in testing the effectiveness of various treatments. Key among these are the repeated measures, cross-over, carry-over, and Latin square designs. In the repeated measures design, each subject receives all treatments, allowing for temporal comparisons. This type of design is useful in reducing variability but requires careful planning to avoid bias.The cross-over design, an economical method, involves sequential administration of...
Factorial Design02:01

Factorial Design

Factorial Analysis is an experimental design that applies Analysis of Variance (ANOVA) statistical procedures to examine a change in a dependent variable due to more than one independent variable, also known as factors. Changes in worker productivity can be reasoned, for example, to be influenced by salary and other conditions, such as skill level. One way to test this hypothesis is by categorizing salary into three levels (low, moderate, and high) and skills sets into two levels (entry level...

You might also read

Related Articles

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

Sort by
Same author

Black Hole Spectroscopy and Tests of General Relativity with GW250114.

Physical review lettersยท2026
Same author

GW250114: Testing Hawking's Area Law and the Kerr Nature of Black Holes.

Physical review lettersยท2025
Same author

Improving cosmological reach of a gravitational wave observatory using Deep Loop Shaping.

Science (New York, N.Y.)ยท2025
Same author

Squeezing the quantum noise of a gravitational-wave detector below the standard quantum limit.

Science (New York, N.Y.)ยท2024
Same author

Search for Subsolar-Mass Binaries in the First Half of Advanced LIGO's and Advanced Virgo's Third Observing Run.

Physical review lettersยท2022
Same author

Point Absorber Limits to Future Gravitational-Wave Detectors.

Physical review lettersยท2021

Related Experiment Video

Updated: Jun 21, 2026

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
04:46

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake

Published on: September 18, 2018

Rationale, design and methods of the HEALTHY study nutrition intervention component.

B Gillis1, C Mobley, D D Stadler

  • 1Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA. gillisbp@upmc.edu

International Journal of Obesity (2005)
|July 23, 2009
PubMed
Summary

The HEALTHY study implemented a multifaceted nutrition intervention in middle schools to reduce type 2 diabetes risk factors. This involved modifying the entire school food environment to promote healthier eating habits among students.

More Related Videos

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method
06:21

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method

Published on: February 19, 2021

Related Experiment Videos

Last Updated: Jun 21, 2026

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
04:46

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake

Published on: September 18, 2018

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method
06:21

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method

Published on: February 19, 2021

Area of Science:

  • Public Health
  • Nutrition Science
  • Pediatric Health

Background:

  • Type 2 diabetes risk factors are a growing concern in school-aged children.
  • Middle school is a critical period for establishing lifelong health behaviors.
  • Previous interventions have shown varying success in modifying school food environments.

Purpose of the Study:

  • To describe the design of the HEALTHY nutrition intervention component.
  • To detail strategies for modifying the total school food environment.
  • To outline goals for improving student nutrition and reducing diabetes risk.

Main Methods:

  • Randomized, controlled, multicenter trial involving 42 middle schools.
  • Intervention targeted federal meal programs, a la carte venues, vending machines, and school events.
  • Strategies included modifying food offerings, taste tests, educational activities, and staff training.

Main Results:

  • The intervention aimed to lower fat content, increase fruit and vegetable availability, limit unhealthy snacks and beverages, and promote whole grains and legumes.
  • Multiple components were integrated, including physical education and behavior change strategies.
  • Strong collaboration between study staff and food service personnel was a key strength.

Conclusions:

  • The HEALTHY nutrition intervention utilized a comprehensive approach to alter the school food environment.
  • Integration with other intervention components and strong partnerships were crucial for implementation.
  • The study design provides a model for large-scale school-based nutrition interventions to combat childhood obesity and type 2 diabetes risk.