I see people at my gym using those wobble boards, is there any point in doing stuff like that?

it's good for variety, but it is also good for a lot of athletes who need functional core strength for their events.

It's also about proprioception, which is important for athletes who need balance - that includes mountain biking.

It would also be good if you do a lot of trail running.

I love it - i've added some into my training and find it really challenges me.

I like it - not all the time, but sometimes, to challenge me and do something different - why don't you try it?

Stability training is a part of yoga, when you do balances on one leg, so it's been around for a long time!

Stability training should be an important part of your training regime. It is particularly useful for people coming back from injury and you should ensure all your exercises you do are done with good posture and technique. Swiss balls are brilliant for stability training and things you may see at your gym called 'bosu's'

I saw this video of a pro surfer doing weighted squats on a soggy swiss ball - awesome balance and control.