What is muscle strength?
Click to see answer
The capacity of a muscle to produce the tension necessary for maintaining posture, initiating or controlling movements.
Click to see question
What is muscle strength?
The capacity of a muscle to produce the tension necessary for maintaining posture, initiating or controlling movements.
What does 'opposite to movement' refer to in resistance application?
It refers to the direction of resistance applied against the movement.
What is a sphygmomanometer used for?
To measure blood pressure.
What is meant by movement against gravity in MMT?
Movement that occurs when the muscle must work against the force of gravity.
What are the advantages of using a hand-held dynamometer?
It is portable, easy to use, and provides objective measurements.
What do second generation instruments for MMT measure?
Dynamic isokinetic muscle strength.
What type of trauma is specifically mentioned in relation to muscle weakness?
Hand trauma.
How is maximal muscle strength defined?
The maximal amount of tension or force that a muscle or muscle group can voluntarily exert in one maximal effort, considering type of muscle contraction, limb velocity, and joint angle.
Who are the authors of 'Musculoskeletal assessment: Joint range of motion and manual muscle testing'?
Clarkson, H. M. & Gilewich, G.B.
Which type of movement is not used in Manual Muscle Testing?
Movement against gravity.
What muscle factors can impact muscle strength?
Fiber type and muscle size.
What aspects of muscle performance does the Primus measure?
Strength, endurance, power, and coordination.
What are common methods used for muscle strength assessment?
Manual muscle testing, dynamometry, and functional strength tests.
What does a rating of II- represent?
Partial ROM, gravity eliminated.
What does Grade 2 represent on the Oxford Scale?
Full AROM with gravity eliminated.
What does a rating of IV- indicate?
Full ROM against gravity, mild resistance.
What is the initial positioning for Manual Muscle Testing (MMT)?
Begin assessment with movement against gravity, prepared to apply resistance.
What is muscle weakness?
A lack or reduction of tension-producing capacity of a muscle or a muscle group.
When should movements be tested at the gravity eliminated plane?
When muscles are weak or when there are muscle tone problems.
How does measuring muscle strength help in functional performance?
It examines how muscle weakness limits functional performance.
What is a key aspect of the method of implementation for MMT?
It involves applying resistance to a muscle while the patient attempts to contract it.
How can measuring muscle strength assist in diagnosis?
It can confirm a diagnosis or rule out other conditions.
What are some methodology factors in muscle strength assessment?
Manual and instrumented methods, as well as positioning.
What is a contraindication for Manual Muscle Testing (MMT) regarding repaired tendons?
Testing on just repaired tendons/muscles.
What is the definition of Manual Muscle Testing (MMT)?
A clinical assessment method used to evaluate muscle strength.
What is a hand-held dynamometer used for?
To measure muscle strength.
What are the two main measurements taken by a sphygmomanometer?
Systolic and diastolic blood pressure.
What is the typical unit of measurement for blood pressure?
Millimeters of mercury (mmHg).
What should be stabilized during the muscle testing?
Stabilize the part proximal to the testing joint.
How can you compare the affected side with the unaffected side?
Check the MMT on the unaffected side to feel the performance at maximal resistance (Grade 5).
What position should the patient be in during the MMT algorithm?
Sitting upright.
What factors can affect muscle strength assessment?
Fatigue, pain, motivation, and the presence of neurological conditions.
What does a rating of III- indicate?
1/2 but < Full ROM, against gravity.
How does Instrumented Muscle Testing improve reliability?
It shows improved intrarater, inter-rater, and inter-device reliability.
What does gravity-eliminated movement refer to in MMT?
Movement performed in a position where gravity does not affect the muscle's action.
What is the first step in measurement procedures for muscle strength?
Observe quality of movement.
How can psychological factors affect muscle strength measurement?
Factors like motivation, learning, and fear of injury can influence results.
What are some examples of musculoskeletal injuries?
Cumulative traumatic disease, fractures, arthritis, burns, amputation, hand trauma.
How does a sphygmomanometer work?
It measures the pressure in the cuff as it deflates, indicating blood pressure.
What materials should students bring to the lab?
Study manuals on ROM and MMT.
What does a rating of 0 indicate in muscle strength grading?
No visible or palpable contraction.
What muscle testing will be conducted in the lab?
MMT of upper limbs and lower limbs.
What is a key advantage of Instrumented Muscle Testing compared to Manual Muscle Testing (MMT)?
Better reliability and accuracy.
What are some examples of Upper Motor Neuron Lesions?
Spinal cord injury, stroke, congenital lesions.
What are the different scales used in grading muscle strength?
Various scales that categorize muscle strength from 0 to 5, indicating levels of weakness to normal strength.
How does a hand-held dynamometer work?
It measures the force exerted by a muscle during contraction.
What does 'close to a perpendicular direction' mean in resistance application?
It refers to the angle at which resistance is applied relative to the movement.
What should be checked before testing the muscle?
Check passive range of motion (ROM) to assess the suppleness of the joint.
What is a benefit of comparing current muscle strength measurements with previous ones?
To upgrade or downgrade treatment based on progress.
What does Grade 4 in muscle strength grading indicate?
Holds against mild to moderate resistance.
What should students study before the lab sessions?
The manuals, website, and related anatomy notes.
What is assessed to determine Grade 0 and Grade 1?
Visible or palpable evidence of contractility without any movement.
What does a rating of IV+ mean?
Full ROM against gravity, almost full resistance.
What is a clinical cause of muscle weakness related to neurological disease?
Upper Motor Neuron Lesions.
What is Instrumented Muscle Testing?
A method that uses specialized equipment to measure muscle strength and performance.
What is one purpose of measuring muscle strength?
To determine the amount of muscle power available.
What is one of the primary purposes of Manual Muscle Testing?
To assess and document muscle strength for rehabilitation and treatment planning.
What is the first step in the measurement procedures for muscle testing?
Explain assessment procedures.
What should be added to the assessment if Active Range of Motion (AROM) can be performed?
Add resistance (grade 4 or 5).
What are two specific needs that can be identified through muscle strength measurement?
Need for assistive devices and need for splintage to prevent further joint deformities.
What type of muscle testing can be performed with a hand-held dynamometer?
Manual muscle testing (MMT).
What is a key consideration when using a hand-held dynamometer?
Proper positioning and stabilization of the body part being tested.
What is an example of a second generation instrument for MMT?
Primus.
How can burns affect muscle strength?
Burns can lead to muscle weakness due to tissue damage and loss of function.
What is Manual Muscle Testing (MMT)?
A procedure for evaluating the function and strength of individual muscles and muscle groups based on effective performance of a movement in relation to gravity and manual resistance.
What is gravity-assisted movement in Manual Muscle Testing (MMT)?
Movement that occurs with the assistance of gravity.
What does 'middle to inner range of movement' indicate?
It indicates the position within the range of motion where resistance is applied.
Where is resistance applied on a moving bone?
On the distal end of the moving bone.
What should be done after observing the quality of movement?
Gently palpate muscle tendon or belly.
What is the focus of Trombly's work in 'Occupational therapy for physical dysfunction'?
Evaluation of motor behaviour: Traditional and contemporary view.
What are the components of a sphygmomanometer?
An inflatable cuff, a measuring unit, and a bulb for inflation.
In what position should movement be assessed if AROM cannot be performed?
In a gravity-eliminated position.
What does a rating of II indicate?
Full ROM, gravity eliminated.
What does a rating of III signify?
Full ROM against gravity.
What does a rating of V indicate?
Normal, maximal resistance.
What condition involving muscles can contraindicate MMT?
Inflammation of muscles and deposition of bone cells in muscles, leading to hard swelling.
What is a limitation of Instrumented Muscle Testing?
It is limited in resisting muscle strength.
In which book is 'Joint range of motion' discussed?
Assessment in occupational therapy and physical therapy.
What do first generation instruments for Manual Muscle Testing (MMT) measure?
Isometric strength.
What type of arthritis is mentioned as a clinical cause of muscle weakness?
Rheumatoid arthritis.
What type of clothing should be worn for lab sessions?
Short-sleeve T-shirt and sports pants (not tight style or jeans).
What indicates a Grade 3 muscle strength?
Can patient move full range of motion against gravity.
What should be considered before conducting muscle strength tests?
Patient's medical history, current health status, and any contraindications.
What is Manual Muscle Testing?
A method used to assess muscle strength by evaluating the maximum contraction of a muscle or muscle group.
How does the presence of pain affect MMT?
Presence of pain is a contraindication for Manual Muscle Testing.
What are some subject factors that can influence muscle strength?
Health, age, gender, and usual activity level.
What measurement factors are important in assessing muscle strength?
Reliability and validity.
What topic does Simmonds, M. J. cover in the book edited by Van Deusen & Brunt?
Muscle strength.
What type of instruments are used in the first generation of MMT?
Hand-held dynamometers.
What should be done if AROM cannot be performed?
Downgrade the assessment to grade 2 and below.
What movement should the client perform during the muscle test?
Ask the client to perform movement against gravity (Grade 3).
What does a rating of I signify?
Visible or palpable contraction (No ROM).
What does Grade 3 signify in the Oxford Scale of Muscle Strength?
Full AROM against gravity, no resistance.
What does Grade 0 mean on the Oxford Scale?
No active motion & muscle contraction.
What knowledge is required for effective Manual Muscle Testing?
A sound knowledge of anatomy, including joint motions, muscle origins and insertions, and muscle function.
What should be tested if a muscle fails to achieve full joint range?
Test for Fair (3) muscle grade against gravity, without resistance.
What is another category of neurological causes of muscle weakness?
Lower Motor Neuron Disorders.
What are examples of Lower Motor Neuron Disorders?
Peripheral nerve injuries, brachial plexus injuries.
Why is establishing a baseline important in muscle strength measurement?
To formulate a specific treatment plan.
How should the client be positioned during muscle testing?
Position the client, muscles to be tested, and therapist appropriately.
What is a cumulative traumatic disease?
A condition resulting from repeated trauma over time, leading to musculoskeletal injuries.
What impact does amputation have on muscle strength?
Amputation can lead to muscle weakness in the remaining limbs due to altered mechanics and muscle use.
What indicates a Grade 2 muscle strength?
Can patient move in gravity eliminated position but not full range of motion.
What is the significance of muscle strength grading?
It provides a standardized way to document and communicate muscle strength levels.
What does a rating of III+ represent?
Full ROM against gravity, slight resistance.
What does Grade 5 in muscle strength grading indicate?
Holds against full resistance with strength comparable to the normal side.
What is recommended for practice during lab sessions?
Pairing up with a partner.
What does Grade 5 on the Oxford Scale of Muscle Strength indicate?
Full AROM against gravity & max. resistance.
What does a rating of IV signify?
Full ROM against gravity, moderate resistance.
What is the primary purpose of assessing muscle strength?
To evaluate the functional capacity of muscles and identify weaknesses.
What is described by Grade 4 on the Oxford Scale?
Full AROM against gravity & moderate resistance.
What does Grade 1 indicate in the Oxford Scale of Muscle Strength?
No active motion, but with muscle contraction.
What is the first question in the MMT algorithm?
Can patients move extremity through available test range of motion against gravity?
What is Manual Muscle Testing (MMT)?
A clinical technique used to evaluate the strength of specific muscles or muscle groups.
What does a rating of II+ mean?
Gravity eliminated/slight resistance or < 1/2 range against gravity.
