Vertical Jump and the Just Jump Computerized testing mat.

[Guest guest]

Hello Dr Siff and others.

As part of my client's testing protocol, I

decided to include the vertical jump as a field test to measure

muscular power. Or at least lower body muscular power. The power

estimate would be obtained by using the formula. According to

the manufacturer, the vertical jump is obtained by measuring the flight

time of the subject. The result of the jump is read off the computer

as flight time and vertical jump in inches.

There are additional modes such as the four jump test.

The subject jumps four times in rapid succession. The computer determines the

ground reaction

time/time incontact with the mat, the time the individual is in the

air /flight time. The air time is divided by ground time to give a

Explosive leg power factor rating. The average vertical jump is also

included. Also Included is a 60 jump anaerobic endurance test which

is determined by comparing the first 15 jumps with the last 15 jumps.

My question is, what else can I use the mat for? You mention

comparing a non dip jump to a dip jump to determine explosive

strength deficit. What type of numbers should I be looking for? The

testing device is used for lowerbody analysis, but could I use

ballistic vs non ballistic pushups to determine upper body explosive

strength deficit? Any suggestions on how else to use this testing

device would be helpful.

Also I have the 1999 version of Supertraining, how can I obtain the latest

version?

Thank You

Bill Mcniff

pawtucket RI USA