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

Fast Reactions01:27

Fast Reactions

Fast reactions occurring in times shorter than the time needed to mix reactants pose a unique challenge for investigation. In a liquid-phase continuous-flow system, reactants A and B are swiftly pushed into the mixing chamber, where mixing occurs within 1 ms. The reaction mixture then flows through an observation tube, and one measures light absorption to determine species concentrations at various points of the tube. This method is most appropriate when relatively large volumes of reactants...

You might also read

Related Articles

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

Sort by
Same author

The development of a family-based wearable intervention using behaviour change and co-design approaches: move and connect.

Public health·2023
Same author

Deriving and evaluating new accelerometer cut-points in young children - a comment on Johansson et al. (2014).

Pediatric obesity·2014
Same author

Sitting time and step counts in office workers.

Occupational medicine (Oxford, England)·2014
Same author

Evaluation of a commercially available pedometer used to promote physical activity as part of a national programme.

British journal of sports medicine·2009
Same author

Four-week pedometer-determined activity patterns in normal weight and overweight UK adults.

International journal of obesity (2005)·2006
Same author

Comparison of the neurokinin-1 antagonist GR205171, alone and in combination with the 5-HT3 antagonist ondansetron, hyoscine and placebo in the prevention of motion-induced nausea in man.

British journal of clinical pharmacology·2000

Related Experiment Video

Updated: Jul 8, 2026

Measuring the Switch Cost of Smartphone Use While Walking
07:00

Measuring the Switch Cost of Smartphone Use While Walking

Published on: April 30, 2020

Reactivity: an issue for short-term pedometer studies?

S A Clemes1, N Matchett, S L Wane

  • 1Department of Human Sciences, Loughborough University, Loughborough LE11 3TU, UK. s.a.clemes@lboro.ac.uk

British Journal of Sports Medicine
|January 8, 2008
PubMed
Summary
This summary is machine-generated.

Wearing a pedometer significantly increases daily step counts. Awareness of the device and visible step display likely contribute to this effect, impacting short-term activity studies.

More Related Videos

Precise Electrochemical Sizing of Individual Electro-Inactive Particles
05:03

Precise Electrochemical Sizing of Individual Electro-Inactive Particles

Published on: August 4, 2023

A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance
07:19

A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance

Published on: March 19, 2020

Related Experiment Videos

Last Updated: Jul 8, 2026

Measuring the Switch Cost of Smartphone Use While Walking
07:00

Measuring the Switch Cost of Smartphone Use While Walking

Published on: April 30, 2020

Precise Electrochemical Sizing of Individual Electro-Inactive Particles
05:03

Precise Electrochemical Sizing of Individual Electro-Inactive Particles

Published on: August 4, 2023

A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance
07:19

A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance

Published on: March 19, 2020

Area of Science:

  • Exercise Science
  • Human Movement Studies
  • Behavioral Science

Background:

  • Pedometer use is common for monitoring physical activity.
  • Understanding factors influencing pedometer accuracy is crucial for research validity.

Purpose of the Study:

  • To determine how awareness of wearing a pedometer affects daily step counts.
  • To assess the impact of visible step displays and activity logs on ambulatory behavior.

Main Methods:

  • 50 healthy volunteers participated in a two-week study.
  • Week 1: Participants wore a pedometer unaware of its function (sealed condition).
  • Week 2: Participants knew it was a pedometer and recorded step counts (unsealed condition).

Main Results:

  • Mean daily step counts were significantly higher in the unsealed condition (11385 steps) compared to the sealed condition (9541 steps).
  • The increase in step counts (p<0.001) suggests a behavioral response to pedometer awareness.
  • Visible display and activity logging may enhance this effect.

Conclusions:

  • Knowledge of pedometer use and its visible display increases measured step counts.
  • This awareness effect has implications for the validity of short-term pedometer-based activity research.
  • Future studies should consider blinding protocols to mitigate this potential bias.