Kinetic Chains & Lumbar Stabilization Flashcards
What systems are included in a kinetic chain?
- muscles
- tendons
- fascia
- articular system
- neural system
What is the distinguishing characteristic of a open kinetic chain (OKC)?
The distal segment is mobile
- seated leg exercise
- throwing a ball
What is the distinguishing feature of a closed kinetic chain movement (CKC)?
Distal segment is fixed.
- good for rehab, especially with lower extremity injuries
- fixed joints with mobile joints in between
What are the benefits of CKC movements?
- increased joint compressive forces
- increased joint congruency (stability)
- decreased acceleration forces
- decreased shear forces
- stimulation of proprioception
- enhanced stability
**Less of a threat to healing tissues
Which kind of exercises are more functional (more like activities of daily living) for the lower extremity?
Closed Kinetic Chain
What are examples of lower extremity CKC?
- squats
- lunges
What are benefits of CKC exercises in the upper extremity?
- strengthening & control of shoulder girdle
- prevent shutdown of rotator cuff
- promote and enhance dynamic shoulder stability
What are examples of upper extremity CKC exercises?
- pull ups
- push ups
What are characteristics of open kinetic chain movements?
- increased acceleration
- increased distraction or rotation
- increased deformation of mechanoreceptors
- decreased resistance
- increased shear forces
- promotion of functional activity
What is the biomechanical goal of OKC activities?
- isolate motion to a single joint in specific plane
- improve strength and ROM
Most exercise machines offer which kind of kinetic chain movement?
Open - lat pull down, leg raises, etc.
Which extremity is more functional as an OKC system?
Upper extremity
Remember: rehab should focus on functional movements that integrate all components necessary to achieve optimal movement performance
Concepts of muscles imbalances, myofascial adhesions, arthrokinematics, and abnormal neuromuscular control all need to be addressed
In what direction do you train the kinetic chain?
Proximal to distal
Local to global
What are the BIG 3 lumbar stabilization tracks from McGill?
- Quadruped
- Dead bug / curl up
- Side bridge
