How do you track momentum?

I had this question and thought the best place to post it and get some good comments and feedback would be here on babypips. So here it is - How do you track momentum in the market?

Mathematical Definition of momentum

Momentum = Current bar close - Previous bar close

We use swing high and swing lows based on algos formulas derived from the above mathematical formulas at Master The Markets to track momentum.

How about you all?
How do you all track momentum?