Obviously carrying nothing is best, however if you need to carry something I'm sure I read that backpacks cause the least disruption to your gait. IIRC other options tested were hand held bottles and belts.
I used a pack for all my ultra stuff (because I needed it) and now would probably take the pack for any training over half marathon distance.
Obviously carrying nothing is best, however if you need to carry something I'm sure I read that backpacks cause the least disruption to your gait. IIRC other options tested were hand held bottles and belts.
I used a pack for all my ultra stuff (because I needed it) and now would probably take the pack for any training over half marathon distance.