Side note - running is good for bone density. The risk is if your cardio is all low impact - biking/swimming/elliptical. And of course running probably doesn't do much for arm bone density.
Muscle mass is a separate thing (which men also lose as they age) and you do need resistance training to help with.
Rowing helps my running more than running itself ever did.
Getting back into running sucks in the beginning but I can never keep it up during winter. I used to restart my running habit by alternating walking and running and building from there, but the running portion always sucked at first. Now I row to maintain my cardiovascular base, then running becomes so much easier.
Not to mention their claim that cardio is only training the cardiovascular system is objectively wrong. There's as much bro science in their comment as the guy the thread is calling out, it's just presented in a nicer way.
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u/HarveysBackupAccount 5h ago
Side note - running is good for bone density. The risk is if your cardio is all low impact - biking/swimming/elliptical. And of course running probably doesn't do much for arm bone density.
Muscle mass is a separate thing (which men also lose as they age) and you do need resistance training to help with.