Intensity Level Chart

This is the intensity level chart from the lululemon tackle box. I really like it, so I decided to share. I love the description for intensity 9-10 because it perfectly describes how I feel during high intensity runs.

Intensity Level	How does this feel	When do I use this level?
1-2	Too easy to be considered training	Never
3-5	Can carry on conversation comfortably	Easy runs/long runs/optional runs/warm up/cool down
6-8	Hard- conversations are difficult	Tempo runs/hill intervals/pick ups
9-10	You may question your very survival/sanity	A good hill interval and during intense pick up interval