Joint stability
the ability of a person to control and maintain the joint position or movement
Joint mobility
this is the amount (range) of uninhibited movement around a body segment or joint
Arthrokinematics
this is the motor output and sensory input based on physiological and neurological systems. It also includes joint mechanics.
The length/tension relationship
relationship between (actin and myosin) contractile proteins of a sarcomere and their force-generating capacity
The force/couple relationship
The prime movers:
1) rectus abdominus and hip flexors- RA pulls upward on the anterior and inferior pelvis while HF pulls downward on the anterior, superior pelvis
2) hamstrings and erector spinae- H pull down on the posterior, inferior pelvis while ES pull up on the posterior, superior pelvis
3) deltoids and rotator cuff- D is prime mover in arm abduction, yet the RC helps to counter the direct upward pull pf the D to produce rotation
Neural control
1) Reciprocal inhibition: This is the reflex inhibition of antagonistic motor neurons during the time that agonist muscles are contracting.
2) Synergistic dominance: This happens when synergistic muscles (the other muscles at the joint) carry out the primary movements/functions of an inhibited/weakened prime mover
The First Phase of Movement:
Stability and Mobility Training
Meaning
The first phase is meant to restore good levels of mobility and stability within the client’s body
How do slow twitch muscle fibers improve stability and mobility?
they improve muscular endurance of stabilizer muscles/ allow joint stabilization for prolonged periods of time with minimal fatigue
What 5 methods of stretching help to improve stability and mobility?
1) Static- self-administered, stretch taken to the point of tension doing a minimum of 4 repetitions holding each stretch for 15-60seconds
2) SMR (self-myofascial release)- self-administered, small continuous back and forth movements on a foam roller or similar device covering an area of 2-6inches over tender region for 30-60seconds, it resets proprioceptive mechanisms of the soft tissue
3) PNF (proprioceptive neuromuscular facilitation):
4) Dynamic!
5) Ballistic!
! Both of these are good for those who are interested in participating in sports that require these stretches
*during phase one, much of it is devoted to improving upon muscle flexibility
Proximal stability (core activation)
What are the three stages of Phase 1?
2 exercises for proximal stability (core function)
Proximal mobility (thoracic spine and hips)
7 Different exercises for Proximal Mobility
Purpose of Proximal stability (around the shoulder)
For bettering the stability in the scapulothoracic area during pushing and pulling type movements
Glenohumeral joint mobility and its purpose for shoulder stability
it is a highly mobile joint and its ability to achieve this degree of movement is contingent upon the stability of the scapulothoracic region (the ability of the scapulae to maintain appropriate proximity against the rib cage during movement
6 Requirements for improving stability in the scapulothoracic area
CKC (closed chain kinetic) movements
Distal Mobility
How to implement Static balance (what’s the definition) in your clients’ routine aka “The variables of training”
Def: ability to maintain the body’s center of movement (COM) within its base of stability (BOS)
Training Conditions of Static Balance
What is Dynamic Balance
When one’s body needs to react to a changing surface
Standing patterns on one leg
The Second Phase of Movement:
Movement Training for ADL’s
Name the 5 Primary Movements