We administer this test on the field with the other field tests. There are two equipment options for setup: using a Vertec measuring apparatus (touch points on a vertical standard that are used in a number of sport testing events) or making marks on a designated wall near the field, such as an equipment storage building. The wall is more restrictive because you must stand close to it during the jump.
Objective: Measure and evaluate lower-body power, core strength, and coordination.
Equipment: Designated wall area or Vertec measuring device, marker or chalk
Procedure: The assigned jumping area should be clear of obstacles to ensure safe landings. Set the Vertec standard according to your height, so that when standing flat-footed you can reach up and touch a minimal number of vanes. (If using the wall method, the markings should reflect this same height.) This touch point represents your standing reach. Once the preliminary touch point is established, you can reuse this mark when further tests are administered in the future.
To begin the countermovement jump, position yourself directly under the Vertec with your feet in a parallel stance. Squat down to load your legs; then quickly jump up, extending your body vertically (figure 2.2, a-b). Your arms swing up forcefully to help aid in maximal power. Reach and touch the highest point possible. This represents your jump height. When using the wall method, make sure to eliminate any drifting into the wall that would stop your jumping momentum (figure 2.2, c-d). A chalk mark on the wall measures the jump height. The score is calculated by subtracting the standing reach from the jump touch score. For example, if your standing reach is 88 inches (224 cm) and your jump touch score is 120 inches (305 cm), then your test score would be 32 inches (120 - 88 = 32, or 305 - 224 = 81 cm). If using the wall method, just measure the distance between the start and jump heights to get the score.
Evaluation: This jump touch score can be useful to athletes and coaches as a quick measurement of power throughout the training year, to quantify off-season training, and to check power loss during the competitive season. The score can be compared to the athlete's previous scores to show improvement
Figure 2.2 Countermovement vertical jump test: (a-b) load and jump using the Vertec method and (c-d) start height measurement and jump using the wall method
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