Chapter 3 - Posture and Anatomical Alignment Flashcards
(60 cards)
The position of the body in space
-or-
the orientation of the body to the environment in reaction to the force of gravity
Posture
A position that maintains balance with maximum stability, minimal anatomical stress, and minimal energy consumption
Posture
During Physical activity, the body experiences movement changes that trigger a set of interaction among what postural systems? (5)
1 - musculosketal system
2 - visual system
3 - vestibular system
4 - integumentary system
5 - central nervous system
What is the role of the postural system?
To protect the supporting structures of the body from progressive deformity and injury by keeping the body in a state of musculosketal balance.
The role of the Postural System is to protect the supporting structures of the body from progressive deformity and injury by keeping the body in a state of ___________________.
musculosketal balance.
What happens as a result of the following:
When a muscle or muscle group pulls too strongly or becomes tight relative to its functional atagonist?
Imbalance
The muscle that acts in opposition to the contraction produced by the agonist (prime mover) muscle
Antagonist
The muscle directly responsible for observed movement
Also called the prime mover
Agonist
When a muscle or muscle group becomes lengthened or is too weak relative to its functional agonist, what 2 things might happen?
1 - It might not pull with enough force to properly execute its intended function
2 OR it might not have the appropriate amount of tension to maintain a neutral joint position
Each muscle in the body must be _______ with all the other muscles exerting both ______ and _______ when stabilizing the body.
If too much or too little force is applied, ________ and _______ are not achieved
1 - In balance
2- exerting both force and stiffness
3. Optimal Balance
4. Posture
The trunk functions as the ________ ?
Tunnel through which all systems connect
What is known as a tunnel through which all systems connect?
The Trunk
What is known as the center of the core?
Pelvic Floor
What does core training involve?
Isometric tightening of the pelvic muscles in addition to activating the transverse abdominis which compresses and protects the core and stabilizes the spine.
A type of muscular contraction in which the muscle is stimulate to generate tension but little or no joint movement occurs
Isometric
Isometric tightening of the pelvic muscles in addition to activating the transverse abdominis which compresses and protects the core and stabilizes the spine.
Core training
_____ involves an equal amount of static, isometric tension on the lateral interior and posterior muscles of the core
There is a natural relationship between the ____ and the ______ where there is no exaggeration in either direction.
The Spine has
____# of cervical vertebrae
____# of thoraic vertebrae
____# lumbar vertebrae
____# fused vertebrae called the sacrum
____# fused vertebrae at the bottom, called coccyx
1 - neutral posture
2 - Ribs
3 - Hips
Add graphic of vertebral column on page 70
The natural aligned spine is neither ____ or ______.
Straight or Flat
Because the natural, aligned spine is neither straight nor flat, instructors should use what words to describe the way the vertebrae should align.
Give 6 examples
1 - Natural
2 - Neutral
3 - Aligned
4 - Lengthened
5 - Tall
6 - Proud
LORDOSIS:
When standing in a tall and erect posture, all joints are in a _____ or ______ postition.
When someone’s pelvis tilts forward, this is called _________ and usually denotes an exaggerated lumbar curve called Lordosis. ( This is depicting incorrect posture)
Often, Lordosis occurs when the Lumbar extensors and hip flexors are either (list 3 ) while the hip extensors and abdominal muscles are in a lengthened positon or are weak relative to their functional antagonist, which are the hip flexors and lumbar extensors.
How can an individual help fix this?
- Neutral or Extended
- Pelvis Tilts Forward
- Hypertonic, tight or shortened
- Focus on strengthening their abdominal muscles (rectus abdominis and external obliques) and hip extensors (Gluteus maximus and hamstrings)
+ stretching the lumbar extensor and hip flexors
Excessive anterior curvature of the spine that typically occurs at the low back (may also occur at the neck)
Lordosis
- Having extreme muscular tension
- Having a solute concentration that is greater than the concentration of human blood
Hypertonic
