Calories Burned While Holding a Crunch

[acousticrocker]

A few weeks ago I thought about holding a crunch for as long as possible. I'm cutting now and i was thinking, "why not burn calories while laying in bed?" (i also do cardio 4-5 times a week). I worked my way up to holding the crunch for an hour. Before you question the truth to that statement, it's more of tightening the abs than a crunch while laying on my back. I'm 170 pounds, 6 feet tall and 16 percent fat percent. How many calories would you guess i'm burning in an hour. I looked at many places on the web and I have not found anything about 'calories burned while holding a crunch." By the way, it's been working well for me just in case you guys and girls wanna try it. 16 percent body fat and I see my abs...not as clear as if i'm at 8 percent....but my abs feel really strong! Thanks in advance for your guesses.