Fitness
Are your knees well-oiled or rusty?
Your knees are one of those things you take for grantedrightup until they start to get stiff.
(TikTok always knows whats up.)

With over5 million likes, the iron knee challenge is the latest fromDr.
Dan, DPT, a TikTok-famous physical therapist who shares a variety ofstrength and mobility tests.
attempt to keep your heels on the ground.
Once youre in a deep squat, glide your knees forward until your shins are parallel with the floor.
At this point, start balancing on your toes.
Stay on your toes as you rise up to stand.
From there, lower your heels and rock back to the deep squat position, then stand up.
What Does The Iron Knee Challenge Test?
(That part is tougher than it looks.)
How To Get Healthier Knees
Lets say you tried the iron knee challenge and immediately tipped backwards.
This will help balance muscle strength around the knee joint, Sabat says.
That way, the next time a test from Dr. Dan rolls around, youll be primed and ready.
source: www.bustle.com