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Related Concept Videos

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Counting is the type of measurement that is free from uncertainty, provided the number of objects being counted does not change during the process. Such measurements result in exact numbers. By counting the eggs in a carton, for instance, one can determine exactly how many eggs are there in the carton. Similarly, the numbers of defined quantities are also exact. For example, 1 foot is exactly 12 inches, 1 inch is exactly 2.54 centimeters, and 1 gram is exactly 0.001 kilograms. Quantities...
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Fabrication of Compressed Hosiery and Measurement of its Pressure Characteristic Exerted on the Lower Limbs
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Test UHCJ20m-Measurement Procedure Standardization and Metric Characteristics Determination.

Aleš Dolenec1, Ivan Milinović2, Vesna Babić3

  • 1Faculty of Sport, University of Ljubljana, Gortanova ulica 22, 1000 Ljubljana, Slovenia.

Sensors (Basel, Switzerland)
|July 26, 2020
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Summary
This summary is machine-generated.

The 20m unilateral horizontal cyclic jump test (UHCJ20m) demonstrates high reliability and satisfactory sensitivity for measuring lower body explosive strength in athletes. This validated test offers a dependable method for assessing athletic performance.

Keywords:
explosive strengthhomogeneityreliabilitysensitivitysprintingunilateral horizontal cyclic jumps

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Area of Science:

  • Sports Science
  • Biomechanics
  • Human Movement Analysis

Background:

  • Assessing lower extremity explosive strength is crucial for athletic performance.
  • Standardized and reliable tests are needed to accurately measure this physical attribute.
  • The 20m unilateral horizontal cyclic jump test (UHCJ20m) is a potential tool for this assessment.

Purpose of the Study:

  • To standardize the measurement procedure for the UHCJ20m test.
  • To determine the reliability, homogeneity, and sensitivity of the UHCJ20m test.
  • To evaluate the UHCJ20m test's suitability for measuring lower extremities' explosive strength.

Main Methods:

  • The study involved 31 university students actively participating in sports.
  • The UHCJ20m test was administered three times per participant using their dominant leg.
  • An active rest period of 15 minutes was maintained between test repetitions.

Main Results:

  • The UHCJ20m test exhibited very high reliability, with Cronbach's alpha at 0.95 and an ICC of 0.94.
  • Homogeneity was confirmed through an average intertrial correlation (AVR) of 0.88.
  • The test demonstrated satisfactory sensitivity for measuring explosive strength.

Conclusions:

  • The UHCJ20m test is a reliable and sensitive measure of lower extremity explosive strength.
  • The standardized procedure enhances its applicability in sports science research.
  • Further research should explore its metric characteristics in athletes requiring start acceleration and maximum speed.