My wife has been trying to get me to do interval training (e.g. bike hard for 30s and then take it easy for 4-5 mins) instead of ride a stationary bike, mainly so she can be outside and we can interact more instead of be on separate machines at the gym (which she finds tedious).
My routine is normally to ride a stationary bike for 30 minutes and keep my heart rate over 160 the entire time (at least, once I get there from whatever my starting heart rate is).
We've gone for a ride and I watch my heartrate and it barely gets to 135 when I push it (usually leaving her behind and then wait for her to catch up). We rode for about an hour or so. I didn't get nearly as sweaty as I do on the stationary bike.
I feel like this isn't nearly as effective as my usual stationary bike routine. How can I compare these 2 methods? How can I tell if I'm getting as good of a workout to achieve my weight loss goals?
I keep nagging her to go to the gym with me and she keeps wanting to run/walk on a trail in the forest or bike on a trail and I just simply feel like it's not a good workout.