Are you in Canada? Click here to proceed to the HK Canada website.

For all other locations, click here to continue to the HK US website.

Human Kinetics Logo

Purchase Courses or Access Digital Products

If you are looking to purchase online videos, online courses or to access previously purchased digital products please press continue.

Mare Nostrum Logo

Purchase Print Products or eBooks

Human Kinetics print books and eBooks are now distributed by Mare Nostrum, throughout the UK, Europe, Africa and Middle East, delivered to you from their warehouse. Please visit our new UK website to purchase Human Kinetics printed or eBooks.

Feedback Icon Feedback Get $15 Off

Maximum Muscular Power (High-Speed Strength) Test Protocol: Squat Jump (Static Vertical Jump)

This is an excerpt from Essentials of Strength Training and Conditioning 5th Edition With HKPropel Access by NSCA -National Strength & Conditioning Association,G. Gregory Haff,N. Travis Triplett.

By David J. Heikkinen, PhD, Jo Clubb, MS, and John McMahon, PhD

The equipment needed and the personnel required for the squat (static) vertical jump are the same as the vertical jump with a countermovement.

Procedure
  1. The test procedures are essentially the same as for the vertical jump, except that the countermovement is removed. Begin with the athlete standing on a calibrated, zeroed force platform. (Note: The squat jump and vertical jump with countermovement can also be tested using a switch or contact mat system (figure 14.9) [158], which estimates jump height [51] but cannot measure force outputs.)
  2. The athlete descends into a squat position (knee angle approximately 110 degrees) and holds this position for 2 to 3 seconds before jumping vertically, keeping hands fixed on hips.
  3. The takeoff and landing positions, as well as jumping strategy, should be the same for each trial. Specifically, the tester should ensure there is no countermovement (dip) at the start of the jump, both through visual observation and, where a force plate is used, by assessing the force–time curve.
  4. The best of three trials is recorded. The ratio of the vertical jump height with countermovement to squat jump height can be calculated as the eccentric utilization ratio (99).
  5. Figure 14.10 shows an example of how the vertical ground reaction forces change across the three phases of a static vertical jump when measured with a force plate testing system.
FIGURE 14.9 (a) Starting position and (b) maximum height of the static vertical jump when measured with a switch mat.
FIGURE 14.9 (a) Starting position and (b) maximum height of the static vertical jump when measured with a switch mat.
FIGURE 14.10 Example force–time curve of a static vertical (squat) jump when measured with a force plate testing system. Vertical dotted lines divide the typical phases (BP, breaking phase; PP, propulsive phase; FP, flight phase; LP, landing phase). Adapted from Z. Anicic, D. Janicijevic, O.M. Knezevic, et al., “Assessment of Countermovement Jump: What Should We Report?,” Life 13, no. 1 (2023): 190. https://doi.org/10.3390/life13010190. Distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/).
FIGURE 14.10 Example force–time curve of a static vertical (squat) jump when measured with a force plate testing system. Vertical dotted lines divide the typical phases (BP, breaking phase; PP, propulsive phase; FP, flight phase; LP, landing phase).
Adapted from Z. Anicic, D. Janicijevic, O.M. Knezevic, et al., “Assessment of Countermovement Jump: What Should We Report?,” Life 13, no. 1 (2023): 190. https://doi.org/10.3390/life13010190. Distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/).

Note: Descriptive data for the static vertical jump are presented in table 14.10 near the end of the chapter.

TABLE 14.10 Vertical Jump, Static Jump, and Broad Jump Descriptive Data* for Various Groups
More Excerpts From Essentials of Strength Training and Conditioning 5th Edition With HKPropel Access

SHOP

    HK INSIDER

    Get the latest insights with regular newsletters, plus periodic product information and special insider offers.

    JOIN NOW
    Back to top