Here are six ways that McManamey says treadmill running can both simulate a marathon environment and help you increase your endurance before the big day. What to Read Next ...

Here’s what running experts say about swapping the track for the treadmill when it comes to marathon training.

She estimates she could have run a single hard marathon in about 3 hours 30 minutes at the time—over 50 minutes faster than her average over the ten marathons.