1 Tire width is the width of the tire measured in mm from sidewall to sidewall. This tire width is 225 mm.  Aspect ratio is the ratio of the height of the tire's cross-section to its width. On our example, 60 means that the height is equal to 60% of the tire's width.
The infrahyoid muscles or strap muscles are a group of four paired muscles in the anterior neck below the hyoid bone. They are responsible for depressing the hyoid during swallowing. Each muscle is supplied by different nerves from the ansa cervicalis.
A counter-force tennis elbow strap can be thought of as your fingers on the neck of the guitar (your forearm) and the extensor muscles, especially the extensor carpi radialis brevis, would be the guitar string, thus reducing tension of the muscles as they attach to the lateral epicondyle.