What is a good countermovement jump?
We look for this to be between 1.1-1.20, or in other words a 10-20% higher CMJ height than SJ height. An athlete who scores below 1.1 may benefit from exercises that include the stretch-shortening cycle (SSC), such as a countermovement trap bar jump or hang-variation Olympic lifts.
What is the average vertical jump for a 10 year old?
High School Athlete Jump Averages Chart
| Age | Vertical |
|---|---|
| 10 years old | 10.9 inches |
| 11 years old | 12.1 inches |
| 12 years old | 13.3 inches |
| 13 years old | 14.5 inches |
What is a good vertical jump for volleyball?
Overall, 19–20 inches is the average vertical jump for outsider hitters, right side hitters and middle blockers. The average vertical jump for setters is approximately 18–19 inches. Defensive specialists and liberos have an average vertical of about 18 inches.
Is 60 cm vertical jump?
Coaches and athletes use the Vertical Jump Test (sergeant jump) to measure their standing jump abilities….What Results You’ll See.
| % Rank | Females | Males |
|---|---|---|
| 71 – 80 | 66.05 – 71.10 cm | 76.20 – 81.29 cm |
| 61 – 70 | 60.95 – 66.04 cm | 71.10 – 76.19 cm |
| 51 – 60 | 55.90 – 60.94 cm | 66.05 – 71.09 cm |
| 41 – 50 | 50.80 – 55.89 cm | 60.95 – 66.04 cm |
How is countermovement jump measured?
scoring: The timing mat may give a score of the time in the air, and the calculated vertical jump height can be calculated. Height can be calculated using this formula: jump height = 4.9 x (0.5 x Time)^2 ). The jump height is usually greater than achieved with the Squat Jump.
What is the difference between squat jump and countermovement jump?
The difference between countermovement and squat jump performances: a review of underlying mechanisms with practical applications. It is concluded that the difference in performance may primarily be related to the greater uptake of muscle slack and the buildup of stimulation during the countermovement in a CMJ.
What is LeBron’s vertical?
The current reigning monarch of the air is LeBron James. With his vertical leap reportedly measuring in at somewhere north of 40 inches (the NBA average is in the high 20s), King James is able to launch his 6-foot-8-inch, 250-pound frame with seeming ease.
How long does it take to increase vertical by 6 inches?
If you’re intermediate (have trained for 1-2 years), you can realistically increase your vertical jump by around six inches over the next 6 months. For someone who’s advanced, (training for more than 2 years), training can get you somewhere around 4 more inches on your vert.
Is the countermovement jump (CMJ) a valid exercise for children?
The countermovement jump and squat jump (CMJ and SJ, respectively) are two examples of VJs which are both derived from the Sargent jump ( Sargent, 1921, 1924 ). Both CMJ and SJ are considered reliable and valid ( Markovic et al., 2004) in children ( Fernandez-Santos et al., 2015 ).
What is the purpose of the countermovement jump?
The countermovement jump (CMJ) is primarily used to measure an athlete’s explosive lower-body power (2, 3), and has become one of the most frequently used tests by coaches and researchers to indirectly measure power in the lower limbs (4). This test can be conducted either with, or without the use of the arm-swing.
What is the optimal depth for countermovement?
Though there is no universal agreement on which is depth is most appropriate, higher jumps and peak power outputs appear to increase with larger countermovement depths (23, 24); however, the data is somewhat inconsistent and more research is needed.
How many jumps do I need to perform CMJ?
The athlete must perform a minimum of three jumps so that performance averages can be calculated. In most circumstances CMJ performance is reported as either jump height* (cm), or relative peak power output (W·kg -1 ).