Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...

Tandem Mass Spectrometry

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...

You might also read

Related Articles

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

Sort by

Same author

Strength and Speed Training Practices for Olympic Endurance Sports: Insights From World-Class Coaches.

Journal of strength and conditioning research·2026

Same author

Phantom evaluation of spectral performance in photon-counting CT for breast cancer imaging.

Medical physics·2026

Same author

Greatest of All Time: Development of a Ranking System to Determine the Most Successful Olympic and World Championship Runners Since 1896.

Sports medicine (Auckland, N.Z.)·2026

Same author

An exploratory study of maximal heart rate determination in endurance athletes: laboratory testing vs. field based.

Frontiers in sports and active living·2026

Same author

The training and development process during childhood and adolescence of a multiple Ballon d'Or-nominated soccer player.

Frontiers in sports and active living·2025

Same author

Bridging the activation gap: a physical activity intensity scale informed by elite athletes yet inclusive for musculoskeletal pain patients.

Frontiers in sports and active living·2025

Same journal

Moderate Intensity Resistance Training With Partial Range-of-Motion at Long Muscle Lengths Elicits Similar Hypertrophy and Architectural Adaptations as High Intensity Resistance Training Using Full Range-of-Motion.

Journal of strength and conditioning research·2026

Same journal

Countermovement Jump Responses During an Academy Rugby League In-Season.

Journal of strength and conditioning research·2026

Same journal

The Association Between Athletic Movement Quality and Physical Fitness in Athletic Populations: A Systematic Review With Multilevel Meta-Analysis.

Journal of strength and conditioning research·2026

Same journal

Sex Differences in Maximal and Endurance Adductor Strength: Implications for Athlete Screening and Return to Play.

Journal of strength and conditioning research·2026

Same journal

The Role of Y Balance Test Execution Time in Detecting Chronic Ankle Instability.

Journal of strength and conditioning research·2026

Same journal

National Strength and Conditioning Association Position Statement on Strength and Conditioning of Female Athletes. Part I: Lifespan, Injury, and Health Considerations.

Journal of strength and conditioning research·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 3, 2026

Implementation of a Coherent Anti-Stokes Raman Scattering CARS System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope

Implementation of a Coherent Anti-Stokes Raman Scattering CARS System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope

Published on: July 17, 2016

Sprint time differences between single- and dual-beam timing systems.

Thomas A Haugen¹, Espen Tønnessen, Ida S Svendsen

¹1Faculty of Health and Sport Science, University of Agder; 2Norwegian Olympic Federation, Oslo, Norway; and 3School of Sport, Exercise and Health Sciences, Loughborough University.

Journal of Strength and Conditioning Research

|February 18, 2014

Summary

This summary is machine-generated.

Accurate sprint timing is crucial for performance analysis. Dual-beam (DB) timing systems are recommended over single-beam (SB) systems for reliable short sprint measurements, showing differences of ±0.05-0.06 seconds.

More Related Videos

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

Published on: February 10, 2020

Fixed Target Serial Data Collection at Diamond Light Source

Fixed Target Serial Data Collection at Diamond Light Source

Published on: February 26, 2021

Related Experiment Videos

Last Updated: May 3, 2026

Implementation of a Coherent Anti-Stokes Raman Scattering CARS System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope

Implementation of a Coherent Anti-Stokes Raman Scattering CARS System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope

Published on: July 17, 2016

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

Published on: February 10, 2020

Fixed Target Serial Data Collection at Diamond Light Source

Fixed Target Serial Data Collection at Diamond Light Source

Published on: February 26, 2021

Area of Science:

Sports Science
Biomechanics
Athletic Performance Measurement

Background:

Reliable sprint time measurement is essential for evaluating athletic performance changes.
Practitioners face challenges in selecting cost-effective and accurate timing systems.
Existing research lacks direct comparisons of single-beam (SB) and dual-beam (DB) timing systems for short sprints.

Purpose of the Study:

To quantify sprint time differences between SB and DB timing systems.
To assess the reliability and validity of both SB and DB systems for short sprint distances (0-20m and 20-40m).

Main Methods:

Two timing systems (SB and DB photocells) were used at 0, 20, and 40m.
A controlled protocol using a bicycle with a mounted tube was employed to establish system reliability (CV 0.4-0.7%, SEM 0.01s).
25 track and field athletes performed two 40m sprints, with timing data analyzed for accuracy and reliability (CV 1.2-1.4%, SEM 0.02s).

Main Results:

The magnitude of time differences between SB and DB systems ranged from ±0.05 to ±0.06 seconds.
Both systems demonstrated acceptable reliability for athletic testing.
DB systems provided more precise measurements, essential for detecting subtle performance variations.

Conclusions:

Dual-beam (DB) timing systems are necessary for accurate and reliable short sprint measurements.
Scientists and practitioners should utilize DB systems to ensure the validity of sprint performance data.
The findings support the use of DB systems for critical performance analysis in sports.