The number depends on the type of tunnel.
There were a reported 12,817 injuries from indoor skydiving tunnels worldwide last year with all of them resulting from tunnels with fans at the bottom, including those made by BodyFlying Airodium AG in Switzerland, Aerodium Technologies in Latvia, Portable Wind Tunnels, LLC and Vertical Wind Tunnel Corporation in United States, Free Flight in Australia (which has since closed its tunnel).
Open top wind tunnels are the most dangerous and vortex producing tunnels like those found in Shanghai, China, Las Vegas, Nevada, and in some amusement parks are increasingly dangerous. Many deaths have occurred from people falling over the side or down the sides or dropping quickly when the turbine, which is located at the bottom or sides, shuts off.
Here is a video of what ended up being a very bad accident. http://www.youtube.com/watch?v=Uxh2gy_sFFU
The only safe vertical wind tunnels are those operated by SkyVentures, PacAirVentures, and under the brand name iFLY. There have been no reported incidents of insurance claims in their more than 10 year history. This is largely due to the design and safety measures built into their tunnels. It may also be due to their extensive training of instructors, two of which are present for every flight.
5
for my 13th b-day party i went indoor skydiving in Manchester it was really fun and I'm turning 14 this year as well so i was thinking going indoor skydiving again this year or maybe be going zorbing ( you go in a big hamster ball and get rolled down a hill.) or rock climbing, gorge walking, or if you live in wales (like me) then go to greenwood or treetops adventure
there are about 100,000 accidents a year for sky diving
375
If you do a lot of skydiving yes it will. This is because skydiving requires significant fitness when many jumps are made (e.g. more than 500 a year for example). During a typical day, you may loose a few pounds of weight if you are training and do not keep hydrated.
Lots
1, dan buckley from saltford Bristol on the 10th of April 2009
Each year about 30 people die in skydiving accidents. However, about 40,000 people die in traffic accidents each year. More information about skydiving safety can be found at http://adventure.howstuffworks.com/skydiving8.htm
lots
100
50,000
Around 300,000 door-related finger injuries are reported each year. These injuries can range from minor cuts and bruises to more serious injuries like fractures or dislocations.