Stiff muscles in the upper arms on long runs? Tips and tricks for relaxed arm work.
Stiff muscles in the upper arms when running.
On long runs, it takes a lot of energy to keep our body position stable and upright during each stride and to maintain arm work. To bend the forearm, we need a minimal amount of force from the upper arm muscles. During a long run or race, you can let your arms hang loosely and shake out your arms and hands slightly in between – for example, during a downward passage. Loosening your facial muscles can also lead to relaxation in the shoulder and arm area. Try dropping the corners of your mouth and loosening your jaw during a run. And make sure you don’t hunch your shoulders and your hands are formed into a loose fist.
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