With colder weather on the way, the prospect of outdoor fitness activities gets a little dicier by the day. And a treadmill would be great and all, but who has the room for one? Enter the WalkingPad ...

Outdoor Running: Connect with Nature and Embrace the Physical Challenge For many, the simple idea of heading out for a run on a nice day, or even any day, has an appeal that's hard to match.

There’s no right or wrong when comparing outdoor running to treadmill running. It depends entirely on the individual, what their needs are, and what they prefer in an exercise routine.

Is running on a treadmill just as good as pounding the pavement? It’s about that time when days become shorter, the weather gets colder, and going for a run outside becomes… less enticing.

“I find outdoor running more enjoyable and less mentally challenging than completing workouts on a treadmill,” study author Joel Fuller, Ph.D., told Runner’s World.

What’s more, if you do end up buying your own treadmill, unlike outdoor running, you’ll also have to pay the added electricity costs to power the machine.

* 10 repetitions of 90 seconds at 7 mph (8:34 per mile pace) with a 4 per cent incline, followed by 90 seconds at 6.3 mph (9:31 per mile pace) with no incline * 15-minute cool-down at 6 mph ...