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Examining computerized software reliability to measure individual exposure time.

Aynsley M Smith1, Michael J Stuart, Dirk Larson

  • 1*Sports Medicine Center, and Departments of †Orthopedic Surgery, ‡Health Sciences Research, and §Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, Minnesota; and ¶Department of Kinesiology, University of Calgary, Calgary, Alberta, Canada.

Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine
|January 24, 2014
PubMed
Summary
This summary is machine-generated.

Accurate measurement of individual exposure times (IET) in hockey is crucial for injury research. Time on Ice software offers a user-friendly, automated method for IET tracking, correlating well with manual methods but providing higher totals.

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Area of Science:

  • Sports Medicine
  • Epidemiology
  • Biomechanics

Background:

  • Sport injury research often assumes equal risk exposure for all athletes.
  • In ice hockey, individual player ice time varies significantly, necessitating accurate measurement of individual exposure times (IET).
  • Controlling for IET is vital for identifying true risk factors in sports injury epidemiology.

Purpose of the Study:

  • To compare the accuracy and efficiency of a computer-based system (Time on Ice software) versus a manual method for measuring individual player exposure times in ice hockey.
  • To determine the reliability of the Time on Ice software in capturing IET data.

Main Methods:

  • A cohort study involving 28 Minnesota Junior A hockey players.
  • Individual exposure times were simultaneously recorded using both manual methods (game clock, paper, pencil) and Time on Ice (TOI) software.
  • A sample of matched records was analyzed to compare the two exposure measurement methods.

Main Results:

  • Manual IET determination required an estimated 156 hours for 26 games, while TOI software computed totals automatically.
  • The computer-based TOI method consistently recorded higher IET per player per period compared to the manual method.
  • Both methods showed a high degree of correlation, but TOI offered superior efficiency and user-friendliness.

Conclusions:

  • Time on Ice software is a user-friendly and efficient tool for measuring individual exposure times in ice hockey.
  • The software requires no postgame processing and provides reliable data, although it tends to report higher IET than manual methods.
  • Accurate IET measurement using tools like TOI software is essential for relevant epidemiological sport injury research.