weird. exact opposite for me. wearing it around and warming up with and then taking it off felt like putting on rocket boots. got like a 2" boost on DLRVJ, which is like 6%. pretty big effect, for me the difference between getting high enough to dunk and not. just wearing it to warm up had no effect.
i actually did that experiment yesterday. landed a very hard ME effort dunk at 95kg .. took off vest, took a nice break of about 5 mins. Then tried to dunk unweighted. And actually jumped lower than i used to get without usinbg the vest. But there is a confounding variable. My left ankle niggle kicked in and it inhibits vertical. I wish i could fix it. I may need to start addressing it with strategic taping .. it's the back of my ankle btw .. does anyone have any experience managing and rehabing that particular injury?
edit, ok maybe im wrong about the injury .. it cud be something else like achilles tendon ..y ikes :/
http://sma.org.au/resources-advice/injury-fact-sheets/achilles-tendon-injuries/
back of the ankle where? on the heel?
i've had lots of weird heel/achilles aches, always freaks me out to the max.. i'd personally try refraining from activities that exacerbate it, rather than experimenting with taping etc.. but i'm overly cautious when it comes to the achilles.
so my initial advice is rest.. rehab would be calf raise variations (forefoot slightly elevated for more ROM, double leg, feet straight/internally rotated/externally rotated) and then eventually single leg.. also some very light mobility exercises for the ankle, but definitely not forcing ROM, letting it sink in naturally.
also an extremely important factor when it comes to achilles aches & such is making sure you properly warmup.. if you ever skip out on a warmup, you're running the risk of things getting worse.. that's been my mistake on several occasions.
pc!