Is there a way to determine calories burned when using exercise machines?

[Bill_A]

When I go to the fitness center I used several excercise machines with weights.  For instance when I use the leg extension machine is there a way to determine the calories burned?  It is easy when I walk on the treadmill or elliptical because the machine calculates the calories for me.

Also what does the check mark in front of some of the posts mean?

Thanks.

[zapleahy · Accepted solution]

Hi Bill, The green check mark indicates that an original poster has received and identified a solution to his question. This is referred to as an Accepted Solution and can be helpful when determining which topics will be most helpful when you're seeking an answer to the same question. You can learn more about Accepted Solutions and other community features in our FAQ. 

I'll let the community chime in on the leg extension--one of my nemesis exercise machines!

[Bill_A]

Allison, thanks very much for your answer to my question!