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

Longitudinal Research02:20

Longitudinal Research

11.7K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
11.7K
Longitudinal Studies01:26

Longitudinal Studies

709
Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
709

You might also read

Related Articles

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

Sort by
Same author

Unpacking weight management interventions measuring eating disorder risk in adults: coding of components of interventions in a systematic review.

Journal of eating disorders·2026
Same author

Human milk and total milk intakes of mixed fed infants: a cross-sectional study of infants aged 7-10 months.

European journal of nutrition·2026
Same author

Maternal Smoking, Vaping and Infant Sleep Practices in Sudden Unexpected Death in Infancy: A New Zealand Case Series.

Journal of paediatrics and child health·2026
Same author

The influence of different processing rules on wearable camera data estimates of habitual screen time in children.

Journal of activity, sedentary and sleep behaviors·2026
Same author

Screens, Teens, and Sleep: Is the Impact of Nighttime Screen Use on Sleep Driven by Physiological Arousal?

Journal of sleep research·2026
Same author

Early Infant Sleep Environments: An Observational Study of New Zealand Electronic Health Data.

Journal of paediatrics and child health·2025

Related Experiment Video

Updated: May 5, 2026

Physical Activity Measurement in Children Accepting Table Tennis Training
06:51

Physical Activity Measurement in Children Accepting Table Tennis Training

Published on: July 27, 2022

2.1K

Changes in physical activity over time in young children: a longitudinal study using accelerometers.

Rachael W Taylor1, Sheila M Williams, Victoria L Farmer

  • 1Edgar National Centre for Diabetes and Obesity Research, Department of Medicine, University of Otago, Dunedin, New Zealand.

Plos One
|November 28, 2013
PubMed
Summary

Children

More Related Videos

Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption
08:45

Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption

Published on: June 20, 2025

784
Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
05:59

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity

Published on: March 7, 2019

8.2K

Related Experiment Videos

Last Updated: May 5, 2026

Physical Activity Measurement in Children Accepting Table Tennis Training
06:51

Physical Activity Measurement in Children Accepting Table Tennis Training

Published on: July 27, 2022

2.1K
Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption
08:45

Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption

Published on: June 20, 2025

784
Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
05:59

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity

Published on: March 7, 2019

8.2K

Area of Science:

  • Pediatric physical activity
  • Childhood development
  • Behavioral science

Background:

  • Preschool physical activity declines significantly.
  • Longitudinal data on activity changes are limited.
  • Objective measures are needed to track activity trends.

Purpose of the Study:

  • To track changes in overall physical activity and intensity from ages 3 to 7.
  • To examine activity patterns before and after school entry.
  • To compare activity levels between boys and girls.

Main Methods:

  • 242 children wore accelerometers for 5 days at multiple ages (3-7 years).
  • Sedentary, light, moderate, and vigorous activity were calculated.
  • Mixed models analyzed activity (cpm) and active-to-sedentary ratios (LMV:S), adjusting for confounders.

Main Results:

  • Physical activity halved from age 3 to 5 years.
  • Starting school caused a transient decline in activity.
  • Boys showed higher active-to-sedentary ratios than girls consistently.
  • Activity levels stabilized from age 5 through 7 years.

Conclusions:

  • A significant decline in children's physical activity occurs between ages 3 and 4.
  • This reduced activity level is maintained through age 7.
  • Further research is needed to identify causes and develop interventions.