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You've probably noticed there's a lot of debate about whether you need to run to improve cardio, or whether other activities like walking or hiking could replace it.

I'm a personal trainer who walks and runs for different reasons: I walk to ease stress, exercise (myself and my dog) and contribute toward my overall activity levels (known as NEAT ), while I run to strengthen my heart and lungs and feel good.

But with the rise in rucking popularity, which involves walking with a weighted vest, I wanted to speak with those in the know to see if it could replace running for cardio. Below, a strength coach and running expert weigh in.

So, which is the cardio-building prize? Here's your final answer.

Benefits of rucking

Rebecca is a Peloton instructor based in NYC.

" Rucking offers several benefits, including improved cardiovascular fitness and muscular endurance, and increased functional capacity," says Rebecca Kennedy , a strength coach and Peloton instructor.…