Most knee bends on a Swiss ball in one minute

According to Official Guinness Records,

The most knee bends performed in one minute while standing on a Swiss ball is 65, achieved by Stephen Buttler (UK), at Hope House, Shropshire, UK, for Guinness World Records Day on 17 November 2011.
Stephen is a regular record breaker with a history of attempts on Guinness World Records day.

For a complete list of 2011 records, please visit 2011 Guinness Records in United Kingdom.

Related Images

Other United Kingdom records that might interest you:

• Fastest time to hang three strips of wallpaper - team of two
• Most chin ups in one hour
• Oldest person to have a total hip replacement
• Longest underwater live radio broadcast (supported)
• Fastest one mile carrying 40 lb pack
• Longest chain of skiers
• Most expensive tooth sold at auction