Meg St._Clair wrote:
You don't need to hold the phone in your hand on the treadmill. You can keep it in your pocket or use an arm band. The Nike Running app even has settings that optimize it for armband use.
I was responding to what the Nike + Support website put on their website:
Carry your mobile device in your hand, which will ensure that your motion is captured.
- If you carry your device in a pocket or armband, your motion may not be fully captured.
- If you place your device in the treadmill tray or cupholder, your motion will not be captured.
http://support-en-us.nikeplus.com/app/answers/detail/a_id/36324/p/3169,3575
I've always used the iPod app while on a treadmill so I don't have that much experience with the Nike GPS app on a treadmill.
I'm a bit clumsy. I need to use wireless headphones on a treadmill due to my arm occasionally creating physics experiments with launching wired earbuds and phone sailing off a treadmill track. 🙂