Movement Production and Analysis

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Questions and Answers

During a bicep curl, which action BEST describes the role of the triceps brachii?

  • Contracts concentrically to assist in the upward movement.
  • Is inhibited via feedback mechanisms, allowing unopposed bicep contraction. (correct)
  • Functions as a synergist to refine the bicep's movement pattern.
  • Acts as an agonist, facilitating the bicep's contraction.

Which scenario BEST exemplifies a force couple?

  • Two or more muscles on opposite sides of a joint acting together to stabilize or produce movement. (correct)
  • Muscles working sequentially, where one muscle initiates movement and another completes it.
  • Two muscles on the same side of a joint working together to cause rotation.
  • A single muscle contracting to produce isolated joint movement.

When the deltoid muscle produces an upward and outward force on the humerus, what is the PRIMARY role of the rotator cuff muscles (Infraspinatus, Teres minor, and Subscapularis) in this force couple?

  • To initiate the abduction movement before the deltoid engages.
  • To counteract the deltoid by pulling the humerus upward.
  • To enhance the upward force of the deltoid.
  • To create a compressive force, maintaining the position of head of humerus. (correct)

What is the BEST description of a movement synergy?

<p>Coordinated movements produced by simultaneous activation of multiple muscles, muscle groups at multiple joints. (C)</p> Signup and view all the answers

Why are normal synergies essential for functional human movement?

<p>They produce coordinated and efficient movements across multiple joints and planes. (D)</p> Signup and view all the answers

According to the APTA's Patient and Client Management Model, which of the following is the MOST direct component of the Examination phase?

<p>Review of Systems (B)</p> Signup and view all the answers

A physical therapist observes a patient having difficulty reaching for a glass on a high shelf. According to the Patient and Client Management Model, which of the following should be the therapist's FIRST step?

<p>Measuring the patient's shoulder range of motion and muscle strength. (D)</p> Signup and view all the answers

A physical therapist is evaluating a patient with limited shoulder movement. Which action aligns with the 'Evaluation/Diagnosis' element of the Patient and Client Management Model?

<p>Identifying the specific impairments that are restricting shoulder movement. (B)</p> Signup and view all the answers

A patient has completed a course of physical therapy for a knee injury. Which activity falls under the 'Outcomes' element of the Patient and Client Management Model?

<p>Assessing whether the interventions resulted in improved knee function. (D)</p> Signup and view all the answers

Following an initial examination, a physical therapist determines that a patient's limited ankle dorsiflexion is contributing to their gait abnormalities. According to the Patient and Client Management Model, what is the MOST appropriate NEXT step?

<p>Applying skilled judgment to determine the underlying causes of the limited ankle dorsiflexion. (C)</p> Signup and view all the answers

A physical therapist is working with a patient who has undergone a total hip arthroplasty. The therapist is focused on improving the patient's ability to walk independently. Under which element of the Patient and Client Management Model does this fall?

<p>Interventions (A)</p> Signup and view all the answers

Which component of the APTA's Patient and Client Management Model involves establishing the expected level of improvement a patient can achieve through physical therapy?

<p>Prognosis (B)</p> Signup and view all the answers

What is the central focus of physical therapy practice, according to the provided materials?

<p>Movement (D)</p> Signup and view all the answers

Which of the following best describes the relationship between task, individual capacities, and environment in the context of movement production?

<p>Movement emerges from the interaction of the task, the individual's capabilities, and the environmental constraints. (A)</p> Signup and view all the answers

During the analysis of a patient's sit-to-stand movement, a therapist observes significant asymmetry. Which aspect of movement production is MOST directly implicated?

<p>Motor action (A)</p> Signup and view all the answers

A patient is having difficulty reaching for and grasping a cup. How do the cognitive and sensory/perceptual systems interact to impact the motor system?

<p>Cognition determines the intent to grasp the cup, while sensory perception provides feedback to guide and adjust the motor action. (A)</p> Signup and view all the answers

Which set of movement parameters has the MOST influence on the execution of a task like 'stepping up onto a curb'?

<p>All of the above (D)</p> Signup and view all the answers

A physical therapist is analyzing a patient's forward reach and grasp. The patient exhibits an inability to adjust their grip strength based on the perceived weight of the object. Which component of the individual capacities is MOST likely impaired?

<p>Sensory/perceptual input (C)</p> Signup and view all the answers

A researcher is studying the impact of different environments (e.g., carpet vs. hardwood floor) on an individual's balance during walking. What aspect of movement analysis is being emphasized?

<p>Environmental constraints (A)</p> Signup and view all the answers

During a squat assessment, a patient displays good symmetry and alignment but struggles to control their descent, resulting in a rapid, uncontrolled movement. Which movement parameter is MOST affected?

<p>Postural control (B)</p> Signup and view all the answers

An occupational therapist is working with a patient who has difficulty manipulating small objects. The therapist observes that the patient can initiate the movement but struggles with fine motor adjustments. Which of the following BEST describes the underlying issue?

<p>Inefficient sensory-motor integration (D)</p> Signup and view all the answers

Why is establishing a 'baseline' movement pattern essential in physical therapy?

<p>It serves as a reference point to evaluate the effectiveness of interventions and track patient progress. (D)</p> Signup and view all the answers

According to the presented approach, what is the next step after identifying key movement impairments?

<p>Hypothesizing the underlying cause or contributing factors to these impairments. (D)</p> Signup and view all the answers

In the patient management process, what should a therapist do after creating a therapeutic exercise to improve a specific movement or task?

<p>Determine the most appropriate form of resistance to enhance the exercise's effectiveness. (D)</p> Signup and view all the answers

What is the ultimate goal of creating therapeutic exercises based on movement analysis?

<p>To restore or maximize function by improving movement patterns. (C)</p> Signup and view all the answers

Why are measurements like joint mobility, ROM, muscle length and strength considered insufficient on their own for comprehensive patient management?

<p>These measurements don't capture the quality and coordination of movement during functional tasks. (D)</p> Signup and view all the answers

What is the purpose of 'looking back at the movement' after applying a therapeutic exercise?

<p>To evaluate the intervention's effect on the movement impairment and adjust the approach if needed. (C)</p> Signup and view all the answers

Which of the following represents a key aspect of movement analysis in patient management?

<p>Identifying key impairments that affect the patient's ability to perform functional tasks. (A)</p> Signup and view all the answers

What are some methods to measure and assess movement?

<p>Computerized Motion Analysis and Visual Analysis of Movement (B)</p> Signup and view all the answers

Which of the following best describes the function of extrapyramidal tracts?

<p>Conveying unconscious or reflexive motor responses originating in the brainstem. (D)</p> Signup and view all the answers

How does the brain organize motor output?

<p>By controlling the movement of body segments rather than individual muscles. (A)</p> Signup and view all the answers

What role do visual and vestibular inputs play in motor control?

<p>They provide crucial sensory information for balance and spatial orientation. (D)</p> Signup and view all the answers

Which of the following systems is responsible for relaying proprioceptive information to the brain?

<p>Dorsal column medial lemniscal pathway (B)</p> Signup and view all the answers

Where does the initial cognitive processing for voluntary movement primarily occur?

<p>Precentral gyrus of the cerebrum (D)</p> Signup and view all the answers

How do attention and emotional state influence motor control?

<p>They can significantly modulate motor planning and execution. (D)</p> Signup and view all the answers

Which of the following best describes the role of the spinocerebellar tract?

<p>Carrying unconscious proprioceptive information from the body to the cerebellum. (D)</p> Signup and view all the answers

How do sensory and motor nerves combine as they exit the spinal cord?

<p>They merge to form a single spinal nerve root containing both types of fibers. (D)</p> Signup and view all the answers

What is the significance of perception in the context of motor control?

<p>It involves the integration of sensory inputs, which is vital for adapting movements. (A)</p> Signup and view all the answers

Which descending motor pathway primarily governs conscious movements?

<p>Corticospinal tract (C)</p> Signup and view all the answers

What is the main function of the sensory/perceptual systems with respect to movement?

<p>To provide feedback to the motor system for error correction and adaptation. (D)</p> Signup and view all the answers

How do physical therapists utilize movement analysis in patient management?

<p>To maximize movement and function by understanding underlying impairments. (C)</p> Signup and view all the answers

Why is understanding individual capacities important in analyzing movement?

<p>Because cognitive, sensory/perceptual, and motor abilities influence movement strategies. (C)</p> Signup and view all the answers

Which of the following provides information about joint position?

<p>Proprioception (D)</p> Signup and view all the answers

Why is observation and description of 'whole movement' emphasized?

<p>To understand the integrated and coordinated nature of functional tasks. (B)</p> Signup and view all the answers

Which of the following best describes 'symmetry' in the context of movement analysis?

<p>The agreement of external kinetics and kinematics between the left and right sides of the body. (C)</p> Signup and view all the answers

A physical therapist observes a patient walking and notes the time it takes to complete the walk. Which movement analysis term is the therapist likely assessing?

<p>Speed (A)</p> Signup and view all the answers

A dancer increases the size of their arm movements. Which term best describes this change?

<p>Amplitude (B)</p> Signup and view all the answers

Which of the following is the primary focus of 'alignment' in movement analysis?

<p>The relationship of body segments to each other and the environment. (A)</p> Signup and view all the answers

What is the primary focus of verticality in postural control?

<p>Orienting the body to the line of gravity. (C)</p> Signup and view all the answers

Which of the following is the most direct indicator of stability within postural control?

<p>The amount of sway. (C)</p> Signup and view all the answers

In movement analysis, what aspect of coordination does 'smoothness' primarily address?

<p>Continual movement without interruptions in velocity. (D)</p> Signup and view all the answers

Which aspect of coordination is most closely related to the order in which different body segments are activated during a task?

<p>Sequencing (B)</p> Signup and view all the answers

Which aspect of coordination does 'timing' specifically evaluate?

<p>The temporal structure of movement, like reaction time. (A)</p> Signup and view all the answers

A dart player consistently hits the dartboard close to the bullseye, but not always precisely on it. Which aspect of movement analysis is most relevant to describing their performance?

<p>Accuracy (A)</p> Signup and view all the answers

A patient is recovering from a stroke and exhibits asymmetry in their arm movements. Which observable construct best describes this impairment?

<p>Symmetry (B)</p> Signup and view all the answers

A physical therapist is analyzing a patient's gait and observes that the patient takes a longer time to complete each step compared to a normal gait pattern. Which term best describes this aspect of their movement?

<p>Speed (B)</p> Signup and view all the answers

A gymnast struggles to maintain their balance on the beam during a routine. Which aspect of postural control is most challenged?

<p>Stability (B)</p> Signup and view all the answers

During a golf swing, an amateur golfer does not complete their backswing. Which observable construct is most directly affected?

<p>Amplitude (D)</p> Signup and view all the answers

A surgeon needs to make precise movements during a delicate operation. Which aspect of coordination is most critical for a successful outcome?

<p>Accuracy (A)</p> Signup and view all the answers

Flashcards

Movement Production

Movement arises from the dynamic interaction between the task, the individual's capabilities, and environmental constraints.

Cognitive Contribution to Movement

Cognitive processes related to the purpose/intent of movement.

Sensory-Perceptual Input

Sensory/perceptual processes provide input necessary for accurate motor output.

Motor Output/Action

Motor processes execute the plan, generating action or movement

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Movement Pattern Analysis

Typical movement patterns are assessed at body regions using characteristics like symmetry, speed, amplitude, and alignment.

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Postural Control

The ability to maintain balance and orientation.

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Coordination

Smooth, efficient interaction of body parts during movement.

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Importance of Movement Analysis

Observing and assessing movement qualities and parameters helps in identifying deviations from normal patterns.

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Reciprocal Inhibition

Inhibition of the antagonist muscle, allowing the agonist to work unopposed.

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Force Couple

A pair of equal and opposite forces that work together.

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Force Couples Action

Two or more muscles on opposite sides of a joint working together to stabilize a joint or produce movement.

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Deltoid Function

Upward and outward force on the humerus.

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Movement Synergy

Coordinated movements produced by the simultaneous activation of multiple muscles or muscle groups.

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APTA's Vision Statement

Optimizing movement to improve the human experience.

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Movement Experts

Physical therapists are experts in assessing and restoring movement.

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Patient and Client Management Model

A structured approach used by physical therapists to manage patient care.

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Examination: History

Gathering information about the patient's history to understand their condition

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Examination: Review of Systems

Assesing overall health to identify potential issues related ot patient condition.

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Examination: Movement Analysis

Evaluation of efficiency and quality of a patient's movements.

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Examination Measures

Measuring range, joint motion, muscle flexibility; testing strength impacting movement.

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Evaluation

Applying clinical reasoning to interpret examination findings and identify impairments.

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Physical Therapy Goal

Restoring or maximizing physical function is a core goal.

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Movement & Function

Functional activities rely on efficient and coordinated movement patterns.

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Baseline Movement

Establishing a starting point to measure progress and effectiveness of interventions.

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Movement Assessment

Joint mobility, ROM, muscle length and strength are components, but not complete indicators of overall movement quality.

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Movement Analysis

A systematic process to understand how a patient performs a task and identify any deviations from typical movement patterns.

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Movement Impairments

Identify specific limitations or abnormalities in movement.

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Therapeutic Exercise

Develop exercises designed to target and correct identified movement impairments.

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Resistance Training

Selecting the most appropriate type and amount of resistance to challenge the patient and promote improvement.

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Symmetry

Agreement of external kinetics/kinematics in movement (left vs. right sides).

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Speed

Rate of change/velocity of segment or body displacement from start to finish.

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Amplitude

Extent/range of movement used to complete a task.

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Alignment

Biomechanical relationship of body segments to each other, base of support, and environment to achieve a task.

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Verticality

Ability to orient the body to the line of gravity (upright).

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Stability

Ability to control the body's center of mass (COM) relative to the base of support (BOS) under static/dynamic conditions.

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Smoothness

Movement occurring in a continual fashion, without interruptions in velocity or trajectory.

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Sequencing

Specific order of motor output required to achieve the intended goal/action.

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Timing

Temporal structure of movement including relative percentage (%) or time devoted to movement segments.

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Accuracy

Closeness of movement to a standard of value or intended target; freedom from errror.

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Cognitive Input

Encompasses cognitive processes such as attention, planning, problem-solving, motivation, and emotional influences on motor control.

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Brain's Movement Control

The brain controls movement of body segments, not individual muscles themselves.

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Pyramidal Tracts

Conscious movement messages travel from the primary motor cortex via these tracts.

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Extrapyramidal Tracts

Unconscious or reflexive responses originate here, bypassing the pyramids.

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Perception Role

Integration of sensory input that is essential for controlling movement.

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Somatic Sensation

Light touch, pressure, pain, temperature, vibration, proprioception, and kinesthesia.

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Ascending Sensory Pathways

Sensory messages travel UP to the brain.

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Spinal Nerve Roots

Motor neuron exits; sensory neuron enters.

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Peripheral Nerve Example

Combination of portions of multiple spinal nerves.

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Corticospinal Tract

Carries conscious movement messages from the primary motor cortex.

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Corticobulbar Tract

Carries conscious movement messages from the primary motor cortex to the head and neck.

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Reticulospinal Tract

A tract that originates in the brainstem and influences muscle tone, posture, and balance.

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Rubrospinal Tract

A tract that originates in the red nucleus of the brainstem and influences motor function.

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Vestibulospinal Tract

Balance and head postural changes

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Study Notes

  • Analyzing typical movement patterns and basic functional activities in various environments throughout life is key.

Movement Production and Analysis Objectives

  • To describe the quality of typical movement patterns at selected body regions such as shoulder, upper extremity, head and neck, trunk, pelvis, and lower extremity.
  • Characteristics to analyze include symmetry, speed, amplitude, alignment, postural control, and coordination.
  • To analyze selected whole-body movements like sitting, forward reach, grasp, manipulate, sit-to-stand, squat, and step up/down, and to apply parameters of movement.
  • To compare variations in selected movement parameters that result from normal aging and body structures.

Movement

  • Movement results from the interaction between the task to be performed, an individual's capacities, and environmental constraints.

Individual Capacities

  • Encompass cognitive ideation of movement purpose, sensory/perceptual input, and motor output.

Importance of Movement

  • Movement is central to physical therapy
  • It is highlighted by APTA's vision to transform society by optimizing movement to improve the human experience.
  • Physical therapists are considered movement experts.
  • Analyzing movement is essential in APTA's Patient and Client Management Model.

Patient and Client Management

  • Examination includes a review of systems and history, focusing on movement analysis.
  • Patient and client management involves examination, evaluation/diagnosis, prognosis, interventions, and outcomes.
  • Examination measures joint ROM and mobility, muscle length, and strength affecting movement.
  • Evaluation/diagnosis applies skilled judgment to identify impairments that alter movement.
  • Prognosis involves developing function improvement goals.
  • Interventions create a plan of care to improve movement.
  • Outcomes assess whether interventions resulted in improved movement.

Movement Production

  • Movement is impacted by the Central and Peripheral Nervous System
  • Reciprocal Innervation and Inhibition play a role
  • So do force couples and agonist-antagonist relationships

Movement Production Objectives

  • To describe the anatomical structures, pathways, and selected end-organs of the Nervous System responsible for producing normal movement
  • To identify and describe the function of the sensory and motor components of the Nervous System involved in movement production.

Review: Movement Production

  • Movement is the interaction of the task, individual, and environment

Individual Capacities

  • Nervous System functions:
  • Cognitive ideation of the purpose and movement or task
  • Sensory/Perceptual INPUT
  • Motor OUTPUT

A Broader View of Movement

  • Earlier anatomy study covers individual muscles structures
  • This will focus on observing and describing whole movements
  • Cognitive input into movement involves attention, planning, problem-solving, motivation and emotional aspects of motor control
  • Movement begins in the precentral gyrus of cerebrum.
  • The brain influences the movement of a joint in two ways: corticospinal and cortiocobulbar tracts.
  • Unconscious or reflexive movement is regulated through extrapyramidal tracts through reticulospinal, vestibulospinal, rubrospinal and tectospinal.
  • Sensory and perception is key and includes visual, vestibular, somatic sensation.

Formation of Spinal Nerve Roots

  • Motor neurons exit the anterior horn, and sensory neurons enter the posterior horn
  • Combined sensory and motor nerves form a single spinal nerve root.

Perioheral Nerves

  • Combinations of portions of multiple spinal nerves form peripheral nerves like the femoral and axillary.
  • They are comprised of both sensory and motor nerves

Muscle Activation 'Activation'

  • Motor components connect and innervate the neuro-muscular function at multiple sites

What Activates a Muscle

  • Types of muscle activation include concentric (shortening), eccentric (lengthening), and isometric (equal length/unchanging).
  • Reciprocal Innervation: sensory feedback to the spinal cord happens when a motor neuron is stimulating the agonist to contract,
  • This feedback results in the inhibition of the opposing muscle and allows the agonist to work unopposed.
  • Force Couple: actions of 2 or more muscles on opposite sides of a joint
  • The muscles work together to stabilize joint and allow movement
  • Coordinated movement occurs through is movement synergy which engages multiple muscle group at multiple planes of action

Synergies

  • Movement requires the cognitive system which initiates the idea of movement via the descending motor pathway.

Continuous Process

  • Sensory end organs detect movement within muscles for local feedback

Summary of Movement

  • Individuals capacities produce movement for tasks in specific context
  • The individual Capacities include the Cognitive, Motor/Action (Output) and Sensory/Perceptual (Input) Systems
  • Descending motor pathways contract agonist muscle and inhibit the antagonist through reciprocal activity

Movement is result of multiple muscle groups working together:

  • At a single joint (force couples)
  • At multiple joints (movement synergies)
  • Motor output is refined at both spinal cord and the brain
  • Movement is a continuous cycle of output-sensory input and cognitive planning

Movement Analysis Introduction

  • This unit defines terms to describe movement proposed by APTA's academy of Nurologic Phyiscla Therapy(2021)

Objectives of Movement Analysis

  • To analyze selected whole-body movements applying selected terms of movement
  • Measure helps assessment of improvements
  • Restoring and maxiing function helps restore physical therapy
  • Measures provide joint mobility , Active and Passive Rom-Muscle length and strength
  • Task force proposed and developed 2 important tools for movement analysis

Two Important Assessment Tools

  • A glossary of terms to describe movement
  • A chronological work to describe movement
  • Symmetry -Agreement external - kinetics, kinematic movement
  • Speed-velocity of segment of body displacement from to start to finish task
  • Amplitude-Extent-Used to complete a task
  • Algnment -Segment of body-base and environment

Other measures

  • Ability to upright body movement (VERTICALITY)
  • Ability to control body mass-static movement (STABILITY)

COORINDATION

  • Smoothness: A movement that is continual
  • Sequencing: Order of a motor action
  • Timing- Percent devoted to movement segments
  • Accuracy - Of a target and how well it reached

Summary

  • There is no standard terminology to describe movement
  • That the new Terminology will be incoporated into tasks and new terminology for physical movement
  • Movement descriptors are symmetry, speed and amplitude and alignment
  • The new terminology is not limited to a diagnose and applies to all ages

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