Tires â Retreading is less expensive than new tires and is a large portion of this cost. Although mere pennies per mile, an average tire can cost over $250 and annual tire expenses can exceed $4,000 ($0.03 per mile), enough to purchase 16 new tires annually, but still not enough to replace every tire of an 18-wheeler.
To Correct Forward Head Posture, the muscles which need to be stretched comprise of: 1  Upper cervical (capital) extensors: Semispinalis capitis, splenius capitis, longissimus capitis and suboccipital muscles. 2  Lower cervical flexors. Sternocleidomastoid muscle, medial and anterior scalene muscles.
Extends and hyperextends the head; Contraction of only one side laterally flexes and rotates the head and neck Splenius capitis Extends and hyperextends the head; Contraction of only one side laterally flexes and rotates the head and neck Temporalis Elevates and retracts mandible; assists in side to side movement of mandible