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

Obesity01:24

Obesity

1.4K
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
1.4K
Drug Dosing: Obese Patients01:21

Drug Dosing: Obese Patients

275
In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...
275
Bias in Epidemiological Studies01:29

Bias in Epidemiological Studies

1.4K
Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:  
1.4K
Bioavailability Study Design: Healthy Subjects Versus Patients01:15

Bioavailability Study Design: Healthy Subjects Versus Patients

164
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,...
164
Metabolic Rate01:25

Metabolic Rate

1.3K
The human body is a powerhouse of energy, with every cell performing numerous functions that require energy. This energy production and consumption is measured by the metabolic rate, which quantifies the total heat generated by all the body's chemical reactions and mechanical work. This measurement helps to determine the rate of kilocalorie (kcal) consumption needed to fuel all ongoing activities.
The Basal Metabolic Rate (BMR) measures the energy expended at rest.
Several factors influence...
1.3K
Observational Studies01:11

Observational Studies

11.2K
Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not influence the response variable or the experiment's outcome.
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
11.2K

You might also read

Related Articles

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

Sort by
Same author

Strategies for preventing gender-based violence in healthcare services: Evidence synthesis for health policy.

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics·2026
Same author

Gender-based violence in Brazil: scoping review of risk factors and associated health consequences.

Ciencia & saude coletiva·2026
Same author

Developing an interprofessional strategy to address domestic violence in antenatal and postnatal care service: a quality improvement project.

Journal of interprofessional care·2026
Same author

Pregnancy Outcomes Among Women With Kidney Allografts in Brazil: An Integrative Review.

Experimental and clinical transplantation : official journal of the Middle East Society for Organ Transplantation·2026
Same author

Interventions addressing violence against women in health services: An overview of systematic reviews regarding barriers and facilitators to implementation.

International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics·2026
Same author

Women's Satisfaction With Birth Experience According to Skin Color: A Cross-Sectional Study.

Birth (Berkeley, Calif.)·2025

Related Experiment Video

Updated: Feb 17, 2026

Author Spotlight: Advancements in 3D Optical Imaging for Comprehensive Body Composition Assessment in Modern Research
06:48

Author Spotlight: Advancements in 3D Optical Imaging for Comprehensive Body Composition Assessment in Modern Research

Published on: June 7, 2024

2.1K

A novel body mass index reference range - an observational study.

Sirlei Siani Morais1, Mirena Ide1, Andrea Moreno Morgan1

  • 1Departamento de Ginecologia e Obstetricia, Faculdade de Ciencias Medicas, Universidade de Campinas (UNICAMP), Campinas, SP, BR.

Clinics (Sao Paulo, Brazil)
|December 14, 2017
PubMed
Summary

A new body mass index (BMI) curve for pregnancy was developed, showing poor agreement with existing references. This new curve offers better insights into BMI changes, especially for overweight pregnant women.

More Related Videos

Assessment of Child Anthropometry in a Large Epidemiologic Study
09:36

Assessment of Child Anthropometry in a Large Epidemiologic Study

Published on: February 2, 2017

27.9K
Determining Gender-Based Differences in Retinal and Choroidal Thickness in Underweight Individuals via Swept-Source Optical Coherence Tomography
03:35

Determining Gender-Based Differences in Retinal and Choroidal Thickness in Underweight Individuals via Swept-Source Optical Coherence Tomography

Published on: December 1, 2023

783

Related Experiment Videos

Last Updated: Feb 17, 2026

Author Spotlight: Advancements in 3D Optical Imaging for Comprehensive Body Composition Assessment in Modern Research
06:48

Author Spotlight: Advancements in 3D Optical Imaging for Comprehensive Body Composition Assessment in Modern Research

Published on: June 7, 2024

2.1K
Assessment of Child Anthropometry in a Large Epidemiologic Study
09:36

Assessment of Child Anthropometry in a Large Epidemiologic Study

Published on: February 2, 2017

27.9K
Determining Gender-Based Differences in Retinal and Choroidal Thickness in Underweight Individuals via Swept-Source Optical Coherence Tomography
03:35

Determining Gender-Based Differences in Retinal and Choroidal Thickness in Underweight Individuals via Swept-Source Optical Coherence Tomography

Published on: December 1, 2023

783

Area of Science:

  • Obstetrics and Gynecology
  • Maternal Health
  • Biostatistics

Background:

  • Current body mass index (BMI) references during pregnancy may not accurately reflect diverse populations.
  • Accurate BMI tracking is crucial for monitoring maternal and fetal health outcomes.

Purpose of the Study:

  • To develop a new reference curve for BMI and weight gain during pregnancy.
  • To compare the novel BMI curve and weight gain ranges against existing standards.

Main Methods:

  • A prospective observational study included 641 women with single pregnancies.
  • Linear regression was used to generate percentile curves (5th-95th) for BMI by gestational age.
  • Concordance analysis compared new and existing BMI curves; weight gain was compared to Institute of Medicine recommendations.

Main Results:

  • A new general BMI reference curve and four specific curves based on pre-pregnancy BMI were established.
  • The new BMI curve showed only 48.3% agreement with the currently used curve.
  • Overweight and obese women exhibited higher weight gain than recommended by the Institute of Medicine.

Conclusions:

  • The newly proposed BMI curve for pregnancy demonstrates limited agreement with current references.
  • The new curve provides enhanced information on BMI progression for general and specific BMI groups.
  • Overweight pregnant women showed a more pronounced BMI increase and greater deviation from recommended weight gain.