Kept a nice heart rate of 140-150 during most of the plyometrics workout.  As always, plyo is tough.  The better you do in the beginning of the workout the harder it seems to be as you work through the rest.  Slowly but surely my endurance and strength continues to improve. Sure signs that P90X works.

Related posts:

1. P90X Day 33 Yoga X
2. P90X Day 42 Kenpo X
3. P90X Day 17 Plyometrics
4. P90X Day 30 Plyometrics
5. P90X Day 37 Plyometrics Strikes Back