ACE 02 Client Assessment 31% Flashcards
Threes main types of joints
- Fibrous - little or no movement (synarthroidal)
- Cartilaginous - bones connected by cartilage. Little or no movement
- Synovial- most common, freely moveable
Uniplannaror uniaxial joints
Hinge joints
Allow movement in only one direction
Ankle and elbows are examples
4 groups of movement that occur in synovial joints
- Gliding
- Angular
- Circumduction
- Rotation
Four angular movements
- Flexion - elbow fore arm to upper arm
- Extension - knee extension ( calf to back of thigh)
- Abduction -lift arm from middle line to the side
- Adduction - move arm from side to middle line
Axial skeleton protect which system?
Central nervous system (CNS)
2 parts of nervous system
CNS - central nervous system
PNS - peripheral nervous system
2 categories of pns
Afférent (sensory)
Efferent (motor)
Fight or flight response
Sympathetic nervous system is activated when there is a stressor or an emergency, such as pain, anger, or fear.
Affects nearly every organ to stop storing energy and mobilize resource to respond
2 auto nerve systems
Sympathetic - stress
Parasympathetic- relax
Two types of musculotendinous receptor involved in muscular control and coordination
Golgi tendon organ (GTO)
Muscle spindle
Function of vestibular system
Sensory info related to position of the head
Anterior (ventral)
Toward the front
Three types of muscle tissue
- skeletal muscle (aka striated muscle)
- smooth muscle
- cardiac muscle
2 types of tendons
- Tendons of origin - typically less mobile
2. Tendons of insertion - usually more moveable
Pairings of muscles - agonists and antagonists
- Agonist (aka prime mover) contracts
- Antagonist (aka opposing muscle) stretched
at a joint to create movement
2 general categories of skeletal muscle based on how quickly it contracts
- fast-twitch muscle fibres (aka type II muscle fibers)
- slow-twitch muscle fibres (aka Slow-oxidative; type I muscle fibres)
-relatively more mitochondria
-surrounded by more capillaries
-higher concentrations of myoglobin
-contract more slowly than fast-twitch fibres
-create lower force outputs
-more efficient than fast-twitch fibres
»_space; more resistant to fatigue
» sustaining aerobic metabolism
Two subtypes of fast-twitch fibers
- type IIx
-aka fast-glycolytic fibers
-limited capacity for aerobic metabolism
-fatigue more easily than slow-twitch fibres
cannot sustain more than few seconds. - type IIa
- used for strength and power activities
- sustain effort longer than type IIx fibres up to 3 mins in highly trained athletes
- highly adaptable
- increase oxidative capacity to levels similar to slow-twitch fibres
where does energy come from when muscle finer contracts?
primarily from a substance within the cell called adenosine triphosphate (ATP)
Muscle contraction occurs when the brain and spinal cord director motor neurone to release?
a neurotransmitter called acetylcholine at the neuromuscular junction
Stretchability of collagenous fiber
- relatively inextensible
- extension of about 3%
Stretchability of elastic fibers
- stretched to more than 150% of original length do they reach tier rupture point
What are the two connective tissues that work together to support and facilitate joint movement?
Elastic fibers and collagen fibers
What is tendon?
- cord like tissues
- connect muscles to bones
- transmit force from muscle to bone producing motion
- provide approximately 10% of resistance to movement
What is ligament?
- support a joint by attaching bone to bone
- various shapes (cords, bands, sheets)
- greater mixture of elastic and fine collagenous fibres more than tendons
- allows freedom of movement but also strong, touch and inextensible
- contribute about 47% of total resistance to movement
3 categories of fascia
- superficial fascia - below skin
- deep fascia - under superficial fascia. tougher, tighter; direct related to flexibility and range of motion
- subserous fascia - support innermost body cavities
What is fascia?
- enable safe and effective transmission of forces throughout the whole muscle
- provide lubrications between muscle fibres to change shape
- ensures proper alignment of muscle fibres, blood vessels and nerves
- contributes 41% of total resistance to join range of motion
when is the best time to train flexibility
should be performed later in the day to decrease risk of injury to the disks and surrounding structures
4 posterior muscles that anchor the scapula
- trapezius
- rhomboid major
- rhomboid minor
- levator scapulae
group of Four muscles at shoulder that is called the rotator cuff
SITS
S- Supraspinatus
I - Infraspinatus
T teres minor
S - Subscapularis
deltoid muscle
large muscle that forms a cap over and around the shoulder
sartorius muscle
longest muscle in the body crosses both the hip and the knee
-aka tailor muscle
4 quadriceps muscles
- rectus femoris
- vastus lateralis
- vastus intermedius
- vastus medialis
Gluteus maximus function
- acts as an extensor and rotator of the hip
- running, hopping, and jumping
3 muscles of hamstring muscle group
- biceps fermoris
semimembranosus
semitendinosus
Muscle growth
aka chronic hypertrophy - strength gains experienced after a prolonged period of resistance training.
early gains in strength are attributed to changes in the nervous system not muscle.
Type of resistance training that evokes most muscle hypertrophy
eccentric actions combined with high-velocity training promote greater increases in hypertrophy than concentric actions and slower-velocity training.
Where is GTO (glory tendon organs) located?
between the muscle belly and its tendon
can neutrons transmit impulse because they are connected?
no. neutrons are separated by small space called synapse.
During ______ stretching, the activation of GTOs cause the muscle spindles to relax and, therefore, an increase in the stretch.
Static
after 7 to 10 seconds of low-force stretch, the increase in muscle tension activates a GTO response. Under GTO activation, muscle spindle activity within the stretched muscle is temporally inhibited, allowing further muscle stretching.
location of muscle spindles
parallel to the muscle fibres mostly in the muscle belly
When the muscle spindle’s reflex contraction occurs, it causes the antagonist muscle group to relax. This is known as __________.
Reciprocal inhibition.
Anterior (ventral)
toward the front
Posterior (dorsal)
toward the back
superior
toward the head
inferior
away from the head
medial
toward the midline of the body
lateral
away from the midline of the body
proximal
toward the attached end of the limb, origin of the structure, or midline of the body
distal
away from the attached end of the limb, origin of the structure, or midline of the body
superficial
external; located close to or on the body surface
deep
internal; located further beneath the body surface than the superficial structures
cervical
regional term referring to the neck
thoracic
regional term referring to the portion of the body between the neck and the abdomen; also known as the chest (thoras)
lumbara
regional term referring to the portion of the back between the abdomen and the pelvis
plantar
the sole of bottom of the feet
dorsal
the top surface of the feet and hands
palmar
the anterior or ventral surface of the hands
sagittal plane
a longitudinal (imaginary) line that divides the body or any of its parts into right and left sections
frontal plan
a longitudinal (imaginary) section that divides the body into anterior and posterior parts
transverse plane
aka horizonetal plane; imaginary line that divides the body or its parts into superior and inferior sections
crachium
arm
cephalo
head
dermo
skin
costo
rib
hemo, hemat
blood
ilio
illium; pelvic bone
myo
muscle
os, osteo
bone; osteomalacia - softening of the bone
pulmo
lung
thoraco
chest
abduction
motion away from the midline of the body
adduction
motion toward the midline of the body
flexio
decreasing angele between two bones
extension
increasing angle between two bones
pronation
of the forearm, rotating the hand the wrist from the elbow to the palm-down position (elbow flexed) or back (elbow extended)
supination
of the forearm, rotating the hand and wrist from the elbow to the palm-up position (elbow flexed) or frward (elbow extended)
opposition
thumb movement unique to primats and humans that follows a semicircle toward the little finger
agonist
aka prime mover, muscle that causes a desired motion.
antgonists are muscles that have the potential to oppose the action of the agonist.
e.g. shoulder flexion is the desired action, the should flexors are the agonists and the shoulder extensors are the antagonists.
synergist
muscles assist the agonist in causing a desired action
co-contraction
describes when the agonist and antagonists contract together and a joint must be stabilized.
types of muscular actions
- Static (Isometric) action - come from co-contraction, external force e.g. gracity
> used in proprioceptive neuromuscular facilitation (PNF) stretching techniques
> balance and stabilization training
> e.g. v-sit, hold at the top of a push-up - Concentric (Shortening) action - muscle shortens and overcomes resistive force.
> e.g. up phase of biceps curl with a dumbbell. - Eccentric (Lengthening) action - muscle is producing force and is ‘lengthening, or returning to its resting length from a shortened position. slowering the descent of a weight.
> e.g. biceps brachii act eccentrically int he return phase of a ciceps curl performed with a dumbbell.