Squat Flex
The squat flex is a vertical jump building device that is suppose to be able to help people acheive their goals of dunking. The squat flex was made, and is sold by JUMPUSA.
On the squatflex page of the JUMPUSA website they talk about what exactly the squat flex does and lists what level of band resistance is needed to be able to dunk:
“FACT: the average dunker can lift 6 bands on each side once (420 lbs). As a minimum, YOU MUST HAVE THAT LEVEL of leg strength to dunk. Squatflex takes the mystery out of jump training Keep increasing resistance until you can lift 6 or more bands per side. When you reach that point you’ll be able to dunk, GUARANTEED! Squatflex works on the principle of Jump Quotient: The more weight you can squat, the higher you can jump. Studies have shown a solid correlation between the amount you can squat and your vertical jump. Of all the muscles in your body, the quads contribute the most force to getting you off the ground. To develop the quads, no other device on the market comes close to offering the awesome 490 lbs of resistance you can get with the Squat Flex.
Using giant flat rubber bands and a special anchoring platform, Squatflex lets you wrap layer upon layer of rubber band to “gang” them up to incredibly high poundage / resistance levels. Follow the included workout program designed to steadily increase your max.When you can lift 7 bands per side, you’ll have the necessary leg power to propel your body into dunk territory. It’s the most surefire way to dunk ever. Plain and simple: You dunk or your money back, GUARANTEED.“
JUMPUSA provides a list of what you can expect with each additional band:
Level 3 bands per side: Average Strength
Level 4 bands per side: Getting There
Level 5 bands per side: Stronger
Level 6 bands per side: Just Missing Dunks
Level 7 bands per side: DUNKING !!!
Level 8 bands per side: KISSING THE RIM
FYI: 1 band per side is 60 lbs resistance. 7 bands per side is 420 lbs resistance. Squatflex comes with 10 bands per side for up to 600 lbs resistance!
I recently bought the squatflex and will be testing it out to see if it does what is promised. I will also be posting updates of whatever progress I make if any at all. Being that the squatflex is pretty expensive, I will serve as a testimonial so that you don’t have to waste your money if it is just a useless piece of equipment. When I purchased the squatflex it came with 10 bands for each side. I tried out 4 bands on each side and felt like I could skip five and move up to six because i completed the sets that were given which indicate that you are ready to move on. I tried six bands but was unable to lift it at all. It might have been because I just did previous sets of 4 bands on each side and my legs were a little tired. I am anxious to get back and complete 6 bands on each side and eventually all ten. From the looks and feel of it, I can see a bit of promise in the squatflex, and will update you with my results when i get further on.