Power Test - Week 0

I am signed up for a 12 week cycling class at Endorphin Fitness designed to increase power and strength.  Today, I did pre-class power testing to get a baseline of where I am.  The power test was:

1. 15 minutes warm up
2. 3x1 minute at threshold intensity, then 1 minute rest
3. 5 minutes easy
4. 5 minutes all out
5. 10 minutes easy
6. 20 minutes hard
7. 15 minutes cool down

Here are my results:

Interval	Watts (Avg)	Watts (Max)	Heart Rate (Avg)	Cadence (Avg)	MPH (Avg)
1 min	131	146	168	80	17.0
1 min	139	173	168	82	17.7
1 min	153	188	172	86	18.3
5 min	133	168	177	83	17.4
20 min	122	188	181	81	16.8

I am using the 20 minute test to calculate my heart rate zones as:

Zone	HR Range
1	<= 122
2	123 - 150
3	151 - 170
4	171 - 190
5	191+