How intense does cardio have to be?
Hello ladies!
I have started doing cardio a week ago. I am walking 5-6 days a week on a treadmill at 5 km/h (3.1 miles/hour) for 60 min. In the beginning my heartbeat went up to 130 bpm, but now already it stays under 120 bpm and I think it will continue to drop as I'm getting fitter. Is that still a good way to do cardio with regards to my sway? Are there any criteria like heartbeat has to be above xy? I know that there are no real studies about this ;-) but just a recommendation would help me to get a feeling what I should be aiming at. And would it make a difference if I only walked 50 min? Sometimes my motivation isn't that high and an hour feels like forever ;-)
Some days I only have 30 min. Should I skip those days (as long as I still get in 5 days a week) or is 30 min better than nothing?
Thank you in advance for answering :-)
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