NASAM Flashcards
Muscular imbalances
alteration of a muscles length that surrounds a joint
How are muscular Imbalances caused
emotional duress, repetitive moments, bad training techniques, lack of neuromuscular effecincy, poor core strength, cumulative trauma and stress from postural problems
obesity vs. over weight
Being overweight is considered having a BMI index between the ranges of 25 and 29.9 and between 25 and 30 pounds over the recommended height to weight ratio. Being obese is considered having a BMI of 30 or more with at least 30 pounds overweight for the height to weight ratio.
propioception
Proprioception is the cumulative input into the central nervous system coming from the various Mechanoreceptors in the body that sense limb movement as well as body position. For example, while running your feet send proprioceptive feedback depending on the type of surface you are running on.
Proprioceptively enriched enviorments
unstable environments that are controlled. challenge one’s internal balance and stabilization
How many deaths are caused my cancer/ cardiovascular disease
- 57%
- 80% of those could of been prevented if they lived healthier life styles
Human Movement
The kinetic chain (human movement system) is made up of three primary systems. The skeletal system (bones and joints), the muscular system (ligaments, tendons, muscles, and fascia) and the nervous system (peripheral and central nerves).
Nervous system
- billions of cells that communicate with each other
- CNS- brain and spinal cord
- PNS- nerves that connect spinal cord and brain to rest of body
Sensory Function
The ability of the nervous system to notice changes in their external or internal environment. This is one of the three main functions of the nervous system.
Integrative function
The ability that the nervous system has to interpret and analyze sensory information. This allows for adequate decision-making and producing the correct response.
Motor function
This is the neuromuscular (Muscular and nervous system) response to sensory information.
Proprioception
This is the cumulative sensory input to the CNS (Central nervous system) from all of the various mechanoreceptors that can sense limb movement and body position. Proprioception training improves coordination, posture, and balance.
Neurons
functional unit of nervous system
-form the core of the spinal cord, brain and peripheral ganglia that make up the nervous system. A neuron has three main parts: Cell body, axon, and dendrites.
Sensory Neurons
- Afferent
- conducts impulses to central nervous system from a sense organ
motor Neuron
- efferent
- sends impulses to glands, muscles, and other effectors
- stimulates contraction to innate movment
Mehanoreceptors
- respond to pressure inside of tissue and transmit signals through sensory nerves
- respond to motion, sounds waves, pressure, stretching and touch
Muscle Spindles
- sit paraelle to muscular to muscle fibers
- able to detect length of a muscle and how fast it changes length
- regulate contraction of muscles by the way stretch stretch reflex mechanism
- prevent damage
Golgi tendon organs
- they are found where tendons attached to skeletal muscular fibers.
- These receptors can sense the change in muscular tension and the rate that this tension changes.
- activation casques muscle to relax
- prevent injury
joint receptors
- these receptors are located around the joint capsule.
- They respond to acceleration, deceleration, and pressure at the joint.
- They are able to sense extreme joint positions and send signals in order to prevent injuries.
Skeletal System
- joints and bones
- creates blood and stores minerals
axial skeleton
- rib cage, skull, vertebral column
- 80 bones
appendicular skeleton
lower and upper extremity
-126 bones
remodeling
-formation and reabsorption of bones where older bone is broken down and taken way by osteoclasts and new bone is formed by osteoblasts
osteoclasts
-cell that removes bone tissue
osteoblasts
cell that creates new bone tissue
epiphysis
located at the end of long bones and a place that contains a large portion of red marrow involved in the production of red blood cells. This is one of the main locations for bone growth.
diaphysis
-long portion of bone that is considered the shaft, compact and strong
epiphyseal plate
- This is the area of the long bone that connects the epiphysis to the diaphysis.
- This is a dividing layer of cartilage in cells that grow lengthwise to create the diaphysis.
periosteum
dense fibours outer layer where muscles attach and a more delicate layer inside that can create bone
medullary cavity
This is the location where bone marrow is stored and where blood cell formation happens. Is a small cavity that is located in the shaft of the bone.
Hyaline cartlage
This is the inelastic, flexible yet firm type of connective tissue that is located at the end of bones at the joint.
depressions
flat areas of bones
processes
where ligaments in muscle attach
vertebral column
Made up of 24 bones that create the spinal column. There are 5 lumbar, 12 thoracic and 7 cervical.
arthrokinematics
description of joint surfaces when bones are put through a range of motion.
synovial joints
- These are joined bones that have a fibrous joint capsule.
- These joints produce synovial fluid that kind of looks like egg whites to protect the joints.
- Approximately eighty percent of joints in the human body are synovial joints.
non-synovial joints
These are joints that are non-movable and exclude the joint cartilage, capsule, and ligaments.
-Mostly found in the distal joint of the fibula and tibia as well as the skull.
sacromere
functional unit of a muscle that produces contractions. It is comprised of actin and myosin. This is the repeating section of a muscle.
neural activation
process of nervous system activation of a muscle fiber by the means of the neuromuscular junction.
motor unit
The motor neuron as well as all of the muscle fiber that it innervates.
neurotransmitters
small chemical messengers that are able to cross the neuromuscular synapse (junction) in order to transmit these and electrical impulses from the nerve to the muscle.
type IIx
These have a low oxidative capacity and or quick to fatigue.
type IIa
These have a higher oxidative capacity and will fatigue slower than type IIx. Another name for these is intermediate fast twitch muscle fibers.
Excitation-contraction coupling
- Ach is released and binds with receptors that starts an action potential down the T Tubula.
- This action potential initiates a calcium release (Ca2+).
- The calcium then binds with troponin which stops the blocking action of tribal myosin that exposes the active binding site for actin.
- The next thing that occurs is contraction by the myosin cross bridges that alternately detach and attach to actin. This brings the filaments closer to the middle of the sarcomere. In order for actin and myosin to detach every quires ATP.
- The last step is that Tropomyosin comes back to its location and covers the actin active site. At this point, no more contractions happen.
agonists
prime mover
synergist
assists and helps prime mover
stabilizer muscles
help with stabilizing joints and body during movment
antagonists
These muscles relax in order to permit the prime mover to do its work.
Superior
-a portion above a point of reference
inferior
a position below a point of refernce
proximal
-A position near the center of your body or a point of reference. Your knee joint is more proximal to your hip joint then your ankle joint is.
distal
-A position that is farther away from the center of your body or point of reference. Your ankle is more distal to your hips then your knees are
anterior
front of your body
posterior
back of body
medial
things close to midline of body
lateral
postponed on outside of the body
contralateral
things located on opposite side of your body
anatomic position
- The anatomic position is important as a point of reference for anatomic nomenclature.
- The anatomic position is when the body is erect, the arms at your side and your palms facing forward.
- This way we can reference what is posterior, anterior, medial or lateral by referencing this default position.
sagittal plane
-The sagittal plane splits the body into a right half and they left half. Extension and flexion are movements in this plane.
flexion
-This is a bending movement where a relative angle between two adjacent sections decreases