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Force
An influence applied by one object to another, which results in an acceleration or deceleration of the second object
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Length-tension relationship
The length at which a muscle can produce the greatest force
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Force-Couple
- Muscle groups moving together to produce movement around a joint
- (ie) Internal and external obliques create trunk rotation
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Rotary Motion
Movement of bones around a joint
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Torque
A force that produces rotation
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Motor Behavior
The process of the body responding to internal and external stimuli
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Motor Control
The study of posture and movements and the involved structures and mchanisms that the central nervous system uses to assimilate and integrate sensory information with previous experiences
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Synergies
Groups of muscles that are recruited by the central nervous sytem to provide movement
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Proprioception
The cumulative sensory input to the CNS from all machanoreceptors that sense position and limb movements
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Sensorimotor Integration
The cooperation of hte nervous and muscle system in gathering information, interpreting, and executing movement
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Common Muscle Synergies of Squat and Shoulder
- Squat=Quadriceps, hamstrings, and gluteus maximus
- Shoulder Press-Deltoid, rotator cuff, and traps
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Motor Learning
Repeated practice of motor control processes, which lead to a change in the ability to produce complex movements
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Feedback
The use of sensory inforamtion and sensorimotor integration to help the kinetic chain in motor learning
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Internal Feedback
The process whereby the sensory information is used by the body to reactively monitor movement and the environment
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External Feedback
Information provided by some exernal source, such as health and fitness professional, videotape, mirror, or heart rate monitor to supplement the internal environment
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Training zone 1
- Maximum heart rate x 0.65 or 0.75
- Builds aerobic base and aids in recovery
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Zone Two
- MHR x 0.8 or 0.85
- Increases endurance and trains the anaerobic threshold
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Zone 3
- MHR x 0.86 and 0.9
- Builds high end work capacity
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3 Methods of Body Fat Measurements
Skin-fold calipers, bioelectrical impedance, underwater weighing
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Skin Fold Caliper Testing Sites
- Biceps, Triceps, Subscapular, and Iliac Crest
- Measure on right side of body then add them together then refer to Durnin-Womersley Body Fat Percentage Calculation
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Waist to hip ratio above 0.80 for women and 0.95 for men puts them at risk for many diseases.
BMI > 25 is dangerous
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Three Minute Step Test
- Used to estimate a cardiovascular starting point.
- 1. Determine clients maximum HR then multiply x the figures to get each zone (ie 0.65)
- 2. Have client do 24 steps per minute on 18 inch step then rest one minute, then take pulse 30 sec
Duration of exercise (sec) x 100/Recovery pulse x 5.6 = Cardiovascular efficiency
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Cardiovascular Efficiency Scores
- 28-38 Poor, Zone 1
- 39-28 Fair, Zone 1
- 49-59 Average, Zone 2
- 60-70 Good, Zone 2
- 71-100 Very good, Zone three
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Rockport Walk Test
Determine Max HR, then multiply to get the HR ranges for each zone. Then record clients weight, have them walk 1 mile as fast as they can control on treadmill. Record time. Immediately record HR at 1 mile mark. Then determine their Vo2 score and categorize them using the chart.
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Posture
The allignment and function of all components of the kinetic chain at any given moment
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Structural Efficiency
Alignment of themusculoskeletal system, which allows our center of gravity to be maintained over a base of support
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Functional Efficiency
Ability of the neuromuscluar system to monitor and manipulate movement during functional tasks using at the least amount of stress on kinetic chain
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Postural Equilibrium
Maintaining a state of balance in the alignment of hte kinetic chain
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Neuromuscular efficiency
Ability of the nervous system to communicate effectively with the muscular system
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Functional Strength
The ability of the neuromuscular system to contract eccentrically, isometrically, and concentrically in all three planes of motion
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Postural Distortion Patterns
Predictable occurences of muscle imbalances caused by altered movement patterns
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OVERHEAD SQUAT ASSESSMENT
Designed to assess dynamic flexibility on both sides of hte body as well as integrated total body strength. Arms straight OH, then squat til height of chair. Repeat five times in each position (anterior and lateral)
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Anterior View OH Squat:
Feet Turn out- Overactive and underactive muscles
- Overactive-Soleus, Lat. Gastrocnemius, Biceps femoris (short head)
- Underactive-Med. Gastrocnemius, Med hamstring, Gracialis, Sartorius, Popliteus
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Anterior View OH Squat: Knees Move Inward
- Overactive-Adductor complex, Biceps femoris, TFL, Vastus lateralis
- Underactive-Gluteus Medius/Max. Vastus medialis oblique
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Lateral View: LPHC Excessive Forward Lean
- Overactive: Soleus, Lat gastrocnemis, Hip flexor, abdominal complex
- Underactive: Anterior tibilalis, Gluteus Maximus, Erector Spinae
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Lateral View: Low back arches
- Overactive: Hip Flexor/ erector spinae
- Underactive: Gluteus medius, hamstrings, intrinsic core stabilizers
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Lateral View: Arms Fall Forward
- Overactive: Latissimus Dorsi, Teres Major, Pectoralis Major/minor
- Underactive: mid/lower trapezius, rhomboids, rotator cuff
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Pushing Assessment: Checkpoint: LPHC
Low Back Arches
- Overactive-Hi flexors, erector spinae
- Underactive-Intrinsic Core Stabilizers
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Pushing Assessment: Checkpoint shoulder complex
Shoulder Elevation
- Overactive: Upper trapezius, Sternocleidomastoid, levator scapulae
- Underactive: Mid and lower trapz
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Pushing Assessment: Checkpoint head
Head Protrudes Forward
- Overactive-Upper trapezius, sternocleidomastroid, levator scapulae
- Underactive-Deep Cervical flexors
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Pulling Assessment: Checkpoint LPHC, Low back arches
- Overactive: Hip Flexors, Erector spinae
- Underactive:Intrinsic core stabalizers
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Pulling Assessment: Shoulder Complex
Shoulder Elevation
- Overactive Muscles: Upper trapezius, sternocleidomastoid, levator scapulae
- Underactive: Mid and lower trapezius
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Pulling Assessment, Head protrudes forward
- Overactive: Upper trapz, sternocleidomastoid, levator scap
- Underactive: Deep cervical flexors
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Overhead Squat: Assesses dynamic flexibility and integrated total body strength
Single Leg Squat: Assess ankle proprioception, core strength, and hip joint stability
Pushing and Pulling: Assess upper extremity neuromuscluar efficiency
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Davies Test-Assesses upper extremity agility adn stabilization, not good for ppl with shoulder problems
Two pieces of tape on the floor 36 inches apart, push up position have then move hands to touch one another alternating.
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Shark Skill Test-Assess lower extremity agility and neuromuscular control. Progression from single leg squat
Stand on one leg in grid, hop in each of eight squares back to center each time, in order. See when their nonhopping leg touches ground, etc
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Upper Extremity Strength Assessment: Bench Press
Warm up with light resistance, 8-10 reps, take one minute rest, add 10-20 lb (5-10%) and perform 3 to 5 reps, rest 2 minutes, then add again, press, rest repeat until fails at 3-5 reps
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Lower Extremity Strength Assessment: Squat-Designed to estimate the one rep squat maximum for training intensity purposes
Warm up with light resistance, take a 1 min rest, add 30 to 40 lb (10-20%) do 3-5 reps, rest two min, repeat til can't do 3 to 5 reps
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Flexibility
The normal extensibility of all soft tissues that allow the full range of motion of a joint
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Extensibility
The capability to be elongated or stretched
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Dynamic Range of motion
the combination of flexibility and the nervous system's ability to control this range of motion efficiently
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Neuromuscular Efficiency
The ability of hte neuromuscular system to allow agonists, antagonists, and stabilizers to work synergistically to produce, reduce, and dynamically stabilize hte entire kinetic chain in all three planes of motion
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Dynamic Functional Flexibility
Multiplanar soft tissue extensibilty with optimal neuromuscular efficiency throughout the full range of motion
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Postural Distortion Patterns
Predictable patterns of muscle imbalances
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Relative Flexibility
The tendency of teh body to seek the path of least resistance during functional movement patterns
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Muscle Imbalances
Alternation of muscle length surrounding a joint
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Altered reciprocal inhibition
- The concept of muscle inhibition, caused by a tight agonist, which inihibits its functional antagonist )
- ie-tight hip flexors (psoas) decreases neural drive of fluteus maximus
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Synergistic Dominance
The neuromuscular phenomenon that occurs when inappropriate muscles take over the function of a weak or inhibited prime mover
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Arthrokinematics
The motions of joints in the body
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Arthrokinetic Dysfunction
Altered forces at the joint that result in abnormal muscular activity and impaired neuromuscular communication at the joint
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Autogenic Inhibition
Neural impulses that sense tension is greater than the impulses that cause muscle to contract, providing an inhibitory effect to the muscles. Seen in stretching when you hold for 20 to 30 sec, autogenic inhibition occurs
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Pattern Overload
Consistently repeating hte same pattern of motion which may place abnormal stresses on the body
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Davis's law
States that soft tissue models along the lines of stress
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Corrective Flexibility
Designed to improve muscle imbalances and altered joint motion, uses autogenic inihbition
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Active Flexibility
Designed to improve the extensibility of soft tissue and increase neuromuscular efficiency by using reciprocal inhibition (Active Flexibility)
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Functional Flexibility
power level phase of training
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Self Myofascial release
Apply gentle force to an adhesion for 20 to 30 sec which stimulates golgi tendon organ and creates autogenic inhibition (relaxes muscle)
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Static Stretching
The process of passively taking a muscle to the point of tension and holding the stretch for a minimum of 20 sec. before and after activity
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Active Isolated Stretching
Uses agonists and synergists to dynamicallymove the joint into a range of motion. Held for 1 to 2 seconds and 5 to 10 reps. Ex: Active supine biceps femoris stretch. Ususally a warm up
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Dynamic Stretching
Active extension of a musle, using force production and momentum to move the joint through the full available range of motion. Ex: prisoner squats, one set of ten reps 3 to 10 exercises
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