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Related Experiment Video

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Evaluation of a Smartphone-based Human Activity Recognition System in a Daily Living Environment

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Validity of a Smartphone-Based Application for Determining Sprinting Performance.

Robert Stanton¹, Melanie Hayman¹, Nyree Humphris¹

¹School of Medical and Applied Sciences, Central Queensland University, Bruce Highway, Rockhampton, QLD 4702, Australia.

Journal of Sports Medicine (Hindawi Publishing Corporation)

|August 16, 2016

Summary

The SpeedClock smartphone app is a valid tool for measuring running speed in women, showing excellent agreement with traditional timing lights. While slightly faster, its accuracy makes it a cost-effective option for physical performance assessment.

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Video Movement Analysis Using Smartphones ViMAS: A Pilot Study

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Area of Science:

Sports Science
Biomechanical Analysis
Mobile Technology in Health

Background:

Smartphone technology enables new applications for measuring physical performance.
Mobile apps offer advantages like cost-effectiveness and portability over lab-based tests.
Validation of smartphone apps for running speed measurement is needed.

Purpose of the Study:

To validate the iOS application SpeedClock against conventional timing lights.
To assess the reliability and agreement of SpeedClock for measuring flying 10m sprint velocity.

Main Methods:

Comparison of SpeedClock with timing lights during flying 10m sprints.
Recreationally active women participated in the validation study.
Statistical analysis included independent samples t-tests and intraclass correlations.

Main Results:

No statistically significant difference was found between SpeedClock and timing lights (p=0.07).
Excellent agreement was observed between SpeedClock and timing lights (ICC=0.93).
A small systematic bias was noted, with SpeedClock yielding slightly lower sprint times.

Conclusions:

SpeedClock is a valid and cost-effective tool for assessing 10m sprint velocity in recreationally active females using iOS devices.
The application demonstrates excellent agreement with established timing methods.
Users should consider the slight systematic bias when interpreting SpeedClock results.