Gym Exercise Equipment

How does the exercise equipment at the gym detect your heart rate. For example, the elliptical machine has the metal plates on the hand apparatus, how can the machine detect your heart rate. Thank you in advance

I’m looking for an inexpensive elliptical machine that is of somewhat decent quality. I live in a cold area and walking/running outside has gotten impossible, but I’d like an elliptical machine. They are just so expensive.

I put together an elliptical machine. I missed a step and the bar in the middle of the machine moves side by side when i use it. I tried to take the bolt off of the bar, but it won’t come off. The bolt will turn like it is coming off, but it won’t come off. How can i get it to come off?

What would be more beneficial a elliptical machine, treadmill or something else?

what is the best exercise equipment to work out your legs and thighs? i have a exercise bike and elliptical machine which is best

I have a cyclo-simulator with my mountain bike on it, an elliptical machine, and a treadmil.

I can’t do treadmil due to my bad knee.

I’m getting tired of my ellipticals and the bike.

I’m a hard core aerobic exerciser. Any ideas on other types of equipment other than treadmil?

which would be a better investment for a healthier workout. a tredmill, a stepper machine, or an elliptical machine??? or would some other exercise equipment be better??

I have an elliptical machine that I’ve owned for about 10 years and it’s still in very good condition. My new apartment is small so I want to get rid of it. I don’t have a pick up truck to be able to take it to Goodwill. Are there any organizations that are willing to come pick it up? Any suggestions on how to sell or even give it away?

I’m getting ready to purchase exercise equipment for my home, but not sure which piece of equipment is better. I’m 52 and want something low-impact.

I have a brand new elliptical machine and I would like to know If I’m really burning the calories that It says I am??!!