Running Downhill Technique

[World B]

I do some trail running as cardio after my workouts and have read and been told different techniques for running uphill and down. Uphill I lean into the hill and pump my arms higher. Downhill I'm not so sure. I realize the stress on my knees much more and I'm not sure if I should let it fly or hold back? Any opinions?

 

[Trainer01]

Hi there...
The impact on your joint whilst running down hill is increased significantly. It's best to keep it slow and controlled, this prevents those heavy jolts running up through your legs.