Class Notes (807,235)
Canada (492,664)
York University (33,498)
KINE 2031 (127)
all (21)
Lecture 11

KINE 2031 Lecture 11: kine - nov 18.doc

4 Pages
Unlock Document

York University
Kinesiology & Health Science
KINE 2031

Lecture - November 18, 2013 Skeletal System Patellar ligament • Medial and lateral meniscus – half moon shaped • Collaterals on both sides and the cruciate in the middle • Collaterals prevent lateral deviation and cruciate stabilizes the knee and prevents anterior and posterior deviation • Cruciate ligaments crossing in the middle • Anterior is what starts on the tibia right in the front and passes over the ridge from the two condyles of the femur • Posterior starts on the back part and goes up to the ridge • Flex knee diagram - condyles glides backwards due to the nice platform • When you get injured such as being hit outside of the knee o Mild separation o Stretch medial collateral ligament o Little bit of damage to the lateral meniscus • Good hit to the knee o Stretch the cruciate o Weakens the platform o They replace the ligaments o When you stretch ligaments.- they don’t go back unlike bones o So, they get tendons from you muscles and screw it in and the tendon material slowly changes to ligament material o Took part of the patellar tendon and slice some of it off and put it in there o You do muscle strengthening exercises in order to increase stability of the bones - stronger muscles – stability higher Screw home mechanism • Stand on one leg • Knee locked in, then flex the knee • Knee locked in easier than flex • For example when the British guards stand for long periods of time - if they flexed, they wouldn’t be able to stand there all day, they have to do extension • When you go into extension, your femur rotates medially, thus tightens the ligaments there. You don’t need any muscle. When you are locked in when you flex, muscles needed • Popliteus muscle – used for unlocking the knees • The next slide is just an explanation of this Ankle and foot • Rounded upper bone called the talus and below it is called the calcaneus • Talus – sits in the groove where the tibia and the fibula come together within the arch o Dorsal flexion and plantar flexion only happen here - no rotation or lateral movements • Calcaneus – the heel bone o There is a strong internal structure o Rarely people facture this bone • Anterior to that we have the rest of the bones to the foot o Navicular – shaped half of the moon, articulates with the talus anterior side o Cuboid bone Ligaments ankle • Medial side it’s called the - Deltoid ligament o A lot of them, down to the talus to calcaneus • When you sprain your ankle (stretching of the ligaments) • When you jump, the lateral side gets stretched, it never gets tight as it was • You loose a little bit of stability but you should just strengthen your muscles in that area • Lateral side – ligaments from the talus to calcaneus • You are better of breaking the bone – the bone gets stronger while sprain it doesn’t • You have a tendencies to compress the arch of the foot Ligaments on the foot • Metatarsal there is five o Plantar ligaments the toes has three and thumb has two (phalanges) • Collateral ligaments keep everything in place Arches of the foot • The transverse arch makes of the lateral arch and the medial arch o Lateral arch is lower than the medial arch • You should have a transverse arch • Flat feet – compression of the metatarsal heads, so it is inversion of the foot • Supinated your leg - inverted movement - laterally rotate the whole leg • Almost like the duck walk because arch is compres
More Less

Related notes for KINE 2031

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.