Biomechanics of Human Movement Mid Term Review

Damon Yarde
Flashcards by Damon Yarde, updated more than 1 year ago
Damon Yarde
Created by Damon Yarde over 5 years ago


Mid Term Exam Review

Resource summary

Question Answer
Application of mechanics to the study of structure and function of living systems Biomechanics
The physiological processes and anatomy of the human body with respect to movement Kinesiology
Branch of mechanics dealing with systems in a constant state of motion Statics
Branch of mechanics dealing with systems subject to acceleration Dynamics
Study of the action of forces Kinetics
Study of the description of motion, including consideration of space and time Kinematics
Quantity of matter Mass (kg) Example: Hydroworx (level of water knee or chest height)
Amount of gravitational force (ma) on the a body Weight Example: Bench Press (weight coming towards and being pushed away from the body)
AKA center of mass; point around which body's weight is equally balanced no matter how it is positioned Center of Gravity Example: Bosu ball Exercise (the center of the body will always be the point)
A push or a pull; is equal to mass (m) * acceleration (a); has magnitude, direction and point of application; measured in Newtons (kg * m/s^2 Force Example: Biodex (leg ext)
Resistance to change; resistance to acceleration; tendency to remain in current state Inertia Example: Plank (constant force)
Rotary (angular) or turning force; force when something is rotating; T= Fd Torque Example: Russian Twist
A quantity expressing the motion of a body or system, equal to the product of the mass of a body and its velocity Momentum
Vector Algebra- Composition Arrow=Direction Size of Arrow= Magnitude
Vector Algebra Resolution Vectors may be resolved into perpendicular (e.g. horizontal and vertical) components
Pythagorean's Theorem
Name the 2 types of motion Linear (rectangular and curvilinear) & Angular
Name the 4 steps of of Qualitative Analysis Preparation Observation Evaluation Intervention
What step of QA deals with obtaining pre-requisite knowledge, establishing the problem or chief complaint goal Planning
What step of the QA pertains to conducting the the analysis Observation
This step of the QA is nothing the strengths and weaknesses of performance based on critical features Evaluation
During this step of the QA is when instruction and corrective strategy is implemented Intervention
What are the effects of squat depth on the capsule and ligaments of the knee Tightens joint capsules on anterior capsules and anterior drawer test
What are the effects of the squat depth on the menisci and articular cartilage Tibialfemoral compressive forces during knee flexion bear significant amounts of stress Peak at 130 degress
What are the effects of squat depth on muscular development of the knee The effect on muscular development is at the hip and knee joint, particularly the Gluetus Maximus The GM is increased significantly
Squat Depth Partial = 40 deg Half = 70-100 deg Deep = >100
Squat Stance Narrow vs. wide to decrease tibiofemoral compressive forces; but narrow increase shear forces Wide stance increases gluteus maximus and abductor longus activity
Spine During Squat Flexing the lumbar spine reduces tolerances to compressive loads Extending the spine increases compressive loads on spine Increases flexion with back squat (GM,HS) Front squat= Quads
A combination of stability, balance, postural control, coordination and perception Movement and Function (Basic Premise)
Name the 3 sources of dysfunction Developmental Movement Dysfunction Traumatic Movement Dysfunction Acquired Movement Dysfunction
Type of dysfunction that occurs when growth and the command the command movement are not linear Dysfunctional
Type of dysfunction where injury or trauma is source Traumatic
Type of dysfunction where unnatural activity repeated on a natural movement base and where natural activity repeated on an unnatural movement base Acquired
A developmental perspective and creates a systematic way to observe, rate, and rank movement patterns on on a numerical scale to focus on significant limitations or asymmetries Functional Movement Screening
PRIMITIVE MOVEMENT PATTERNS 1: Basic mobility and stability movement patterns Reciprocal reaching patterns Shoulder mobility test Supine alternate leg-raising pattern ASLR
PRIMITIVE MOVEMENT PATTERNS 2: Transitional movement patterns in which a higher degree of stability Pushing up with trunk stability Trunk stability push-up Quadruped rotational stability pattern Rotary stability
HIGHER LEVEL MOVEMENT PATTERN: Squatting: Overhead Squat Stepping: Hurdle Step Lunging: In-line Lunge
FIRST YOU HAVE___________THAN YOU EARN ___________? Mobility Stability
Name 4 Name Filters In FMS: Pain observed with movement screening Limited movement patterns observed with movement screening Asymmetrical movement patterns observed with movement screening Redundancy or repetition, the duplication of inspection to reduce error and to demonstrate consistency or inconsistency within similar movements
How to conduct an FMS; what we’re looking for in the 7 screens + 3 clearing tests h
Name the BIG 3 Deep squat Hurdle step Inline Lunge
Name the LITTLE 4 Shoulder Mobility ASLR Trunk stability push-up Rotary stability
How to interpret the findings for shoulder mobility Poor thoracic mobility Excessive development and shortening of pec minor, lats and rectus abdominus Poor Scapulothoracic mobility and stability Poor postural control and core stability Increased external rotation
How to interpret the findings for Active Straight Leg Raise Poor Pelvic control Inadequate mobility of opposite hip coming from inflexibility Poor functional hamstring flexibility
How to interpret the findings for Rotary Stability Poor reflex stabilization of trunk and core Poor scapular and hip stability Limited knee, hip, spine and shoulder mobility
How to interpret the findings for Trunk Stability Push-up Poor reflex stabilization of the core Compromised upper-body strength or scapular stability Limited hip and thoracic spine mobility
How to interpret the findings for Hurdle Step Poor stability of stance leg or poor mobility of the step leg Poor asymmetric hip mobility and dynamic stability
How to interpret the findings for Inline Lunge Ankle, knee and hip mobility for either front or back leg Dynamic stability Thoracic spine limitations
How to interpret the findings for Deep Squat Limited mobility in upper torso Poor glenohumeral or thoracic spine mobility Limited mobility in lower extremities Poor DF of ankles, flexion of knees and hips Poor stabilization and control
What a therapist/fitness specialist would address first Refer/ Eliminate pain Address Asymmetries Address score of 1 before a 2 Address most primitive patterns first
Common Mistakes in Prescribing Correctives Protocol Approach Basic Kinesiology Approach Appearance of Function Approach Prehabilitation Approach
Common mistake in prescribing correctives is the one size fits all programming: weight loss, LBP Protocol Approach
Common mistake in prescribing correctives is isolated target muscles approach Basic Kinesiology Approach
Common mistake in prescribing correctives is to mimic function in poor way Appearance of Function Approach
Common mistake in prescribing correctives is arbitrary strengthening to prevent injury Prehabilitation Approach
Corrective examples for Shoulder Mobility Rib grabs, T-spine rotation w/reaching
Corrective examples for Active Straight Leg Raises Raises with band for stabilization, Partial get-up
Corrective examples for Rotary Stability Ball rock back with arm lift, Rolling (upper and lower body)
Corrective examples for Trunk Stability Push- up Reaches from prone-on-elbows or push-up positions, Chops/Lifts from half or tall kneeling
Corrective examples for Hurdle Steps Standing w/leg on chair cable pull-down, Standing w/leg up cable pull-down
Corrective examples for Inline Lunge Half kneeling ankle DF w/dowel, Half kneeling rotation w/dowel
Corrective examples for Deep Sqaut Whole pattern training: assisted exercises( move w/ less than BW; may allow for greater ROM and more reps) Reactive neuromuscular training (RNT): use tubing to over correct
Corrective examples for Deep Squat Reverse pattern: Train motion from bottom up (bend over touch toes, keep touching toes and drop into deep squat, put arms out and stand up)
Corrective examples for Deep Squat Reactive neuromuscular training (RNT): use tubing to over correct
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