Many people experience sore, tired feet at the end of the day or after they have been standing or walking for a prolonged period of time.
What causes sore, tired feet?
A common misconception is that sore, tired feet are the result of shock forces generated when an individual walks, runs, or stands for long periods of time.
In reality, sore, tired feet are the result of poor or maladapted neuromuscular function that has been conditioned by footwear use.
Each foot contains 26 bones, 33 joints, 107 ligaments, and 19 muscles and tendons.
The functional movement and stability of our feet is controlled by muscles.
Foot muscles comprise two groups:
- Intrinsic muscles: small muscles in the feet that primarily control ‘fine-tuned’ movements such as picking something up with the toes
- Extrinsic muscles: larger muscles in the lower legs that are principally involved in propulsion and in control of the stability of the foot’s arch system, the foot’s adaption to terrain, and management of weight bearing forces.
When the extrinsic muscles do not do their job as a result of maladapted neuromuscular function, the intrinsic muscles attempt to assume the load, which causes them to overwork and fatigue, leading to sore, tired feet.