Kinesiology 2241A/B Lecture Notes - Lecture 12: Scoliosis, Humerus, Leg Curl

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2241A/B
• Professor: Bob Vigars

Document Summary

Muscular stability: abdominal muscles on ventral side, prevent v. c. hyperextension, pull pelvis toward sternum, pull thorax toward pelvis, erector spinae muscles on dorsal side, compress v. c, holds v. c. together. Contralateral trunk flexion: moving trunk away from throwing arm". Ipsilateral trunk flexion: moving trunk towards the throwing arm" (tilt v. c. laterally) Underarm" throw pattern: i. e. bowling: doesn"t cause problems natural phenomenon. Rounded shoulders i. e. rowers: stretches retract shoulders, tight in chest area treatment: strengthen retractors of shoulder girdle, stretch protractors of shoulder girdle. Move vertebral column if pelvis is fixed. Move thighs if pelvis is fixed/stabilized or stabilized. Move pelvis if vertebral column is fixed. If abdominals are strong: abdominals are the prime mover, abdominals alone flex the vertebral column, hip flexors stabilize pelvis (h. f. do not flex v. c. ) If abdominals are weak: abdominals alone cannot flex v. c. (abs only assist, hip flexors are the prime movers, hip flexors pull pelvis and lumber disks compress hyperextension.