Domain 7 Module: Mobility Skills (29 test questions) Flashcards
(91 cards)
Where should an instructor be positioned during stair travel?
Slightly below and to the side of the learner to fully view the technique and to prevent support in case of a misstep. Directly behind when ascending, two to three steps below when descending
Where should an instructor be positioned during escalator travel?
Same positioning as stair travel
– movement of the body in space
• Relevance: movement provides much of the environmental characteristics that is usually provided through vision. Movement gives meaning to words and provides information regarding size, shape, location, texture and others. Early learners will benefit from movement activities focusing on movement across the midline, trunk rotation, isolated movement of small body parts, upper body strength, full extension of joints, and increasing stamina. Will enable an O&M instructor to understand the movement of their students and the lack of certain movements. Also with VI babies and young children this movement is critical because they lack motivation to lift their heads, and reach around themselves. This lack of movement has long life repercussions.
Kinesiology
– awareness of body position in space
Proprioception
– how strong and flexible gross motor muscles are
Muscle tone
: vision serves as an important function of preparing one for changes in sensory and motor input. If a child is not expecting something to happen because they cannot see it coming, they might be over sensitive and startled quickly. Hands on demonstrations and letting the child know exactly what is happening, step-by-step is an important strategy to prepare students without eliciting a protective response. In the environment, if somebody cannot see, they may hesitate to move freely due to fear of the unknown. Knowing this, parents and facilitators should prepare safe environments for children and adults to explore, including visual, tactile, and auditory clues for safety and mental organization of the space. Making sure floors and stairs are free of clutter, good lighting, and providing contrast to corners and drop offs will help children and adults navigate through their environment.
Predictability
The optimal performance of sensorimotor skills relies not only on the previously development of lower level skills, but also the adequate development of fundamental sensorimotor elements – sensory awareness, muscle tone, and coordination. When choosing and designing sensorimotor activities, it is important to consider what functional skills the student needs and which prerequisite abilities they must have, and to choose activities that facilitate normal muscle tone, sensory development, reflexes, and equilibrium as appropriate.
Sequencing
Purposeful, self-initiated movement is essential for developing motor skills. Through movement, muscle tone, proprioceptive awareness, and coordination are developed. Only through active interaction with the environment can people learn how to function within it.
Active movement:
Because the acquisition of higher-level motor skills relies heavily on the development of lower-level skills and abilities, it is important to weigh in and mediate need against long-term benefit of emphasizing quality of movement. Focusing on prerequisite skills (proprioceptive, muscle tone, and balance) will facilitate better quality of movement goals (walking)
quality of movement:
specific skills are learned best during critical periods when the appropriate sensory and motor inputs are coming together. If these critical periods are missed, some skills may never be learned, or if they are learned out of sequence, higher-level skills may rest on faulty foundations. Is it important to encourage the sequential development of sensorimotor skills are normal developmental ages.
Timing of movement
It is important to integrate new sensorimotor skills into students’ everyday lives.
Integration of movement:
What impact does vision loss have on the sensorimotor functions?
Because of the major role that vision plays in sensorimotor development in children, some aspects of development may often be delated in clients with vision loss. Due to the degree of interaction among visual, vestibular, and reflex sensory inputs in the central nervous system, when one of those systems is slow to develop, usually one of both of the others can demonstrate delay. Many children who are congenitally blind have hypotonia, or low muscle tone and demonstrate motor skill delays and postural and movement problems. Coordination difficulties are related to poor sensorimotor integration of reflexes. Self-initiated exploration and movement are decreased in students with vision impairment. This lack of physical activity delays the later acquisition of motor skills and can impact cognitive and perceptual development.
As people age, they may experience a decrease in proprioceptive function, which can alter a person’s gait pattern and balance. This will lead to an increased chance of falling.
used to maintain a static position, such as sitting or standing.
Static Balance:
used during movement, such as walking or running.
Dynamic balance
For what purpose would a learner use the upper-hand-and-forearm techniques?
- Allows for efficient and independent travel
- Offers protection when you don’t have a cane
- Assists in locating objects that cannot be detected with a cane
- Helps locate landmarks on wall
- Detects and protects from objects that may be encountered by the upper part of the body
- Used for: travelling through doors with guide, detecting vertical obstacles at head and chest level (coatrack), most effective when using cane
For what purpose would a learner use the lower-hand-and-forearm techniques?
- Detects and protects from objects at waist level – not effective for below waist level
- Used for: locating chairs, doorknobs, objects below waist level
- Should be used in familiar environments without drop-offs, surface level changes, or known obstacles that may be present and can cause injury
Give examples of when a learner would use protective techniques during their daily travels.
- Upper: travelling through doors with guide, detecting vertical obstacles at head and chest level (coatrack), low hanging branches
- Lower: locating chairs, doorknobs, objects below waist level
Why it’s important
- Establish a straight line of travel which will avoid potential hazards
-
When is it used?
- when you need to travel a straight line
- when you need to locate a landmark
Process
- Position yourself parallel to the surface to be trailed in your desired line of travel
o Helps maintain orientation
- Arm closest to trailing surface extended forward and down with the wrist at waist height
o Allows for reaction time
o Reduces chance of contacting protruding objects
- Palm slightly cupped, fingers and thumb relaxed and close together and the fingers pointing downward
o Reduces changes of jamming fingers
o Aligns body along the wall
- move forward with the side of the pinky finger maintaining light contact with surface
o reduces chances of scrapes or injury
o allows learner to more easily move around objects
- Trail surface until a line of travel is established or a landmark or destination is located
• Direction taking
Why it’s important
- Enables a learner to use a perpendicular surface to establish straight line of travel for crossing a hallway or other open space.
When is it used?
- When you don’t have a cane
- Familiar environments
- Street crossing
- With or without long cane or whie using protective techniques
Includes Squaring off and parallel Alignment
Trailing
Why it’s important
- Establish a straight line of travel which will avoid potential hazards
- Helps in search patterns
- Establishes object to object relationships
When is it used?
- When you don’t have a cane
- Familiar environments
- Street crossing
Process
- Put two or more body parts against object; align back, shoulders, or heels against a straight surface or object
o Ensures alignment
- Project line of travel in a straight line from midline, perpendicular from object your back is to and walk forward using a protective technique or a cane
o Will tactually/conceptually provide a straight-line movement
squaring off
Why it’s important
- enable learner to use a parallel surface to establish a straight line of travel
- Establishes object to object relationships
When is it used?
- When you don’t have a cane
- Familiar environments
- Room Familiarization
- crossing through open space
Process
- Use one arm or shoulder to position parallel to a straight surface or object
o Makes sure you’re aligned before moving forward
- Project a straight line of travel from midline into open space and walk forward using either protective techniques or a cane
o This will help reduce veering
Parallel alignment
Why it’s important
- Learn how to work as a team to travel safely
- Learn how to take an active role in travel
- Basic fundamentals of travelling independently
- Be able to teach an inexperienced guide
- Maintains orientation
- Self-Advocacy
- Can learn about an environment without fear of bumping into things
When can you use it?
- Familiar environments
- Unfamiliar environments
- Crowded
- When you don’t have a cane
- Varying conditions
Process
- POSITION: Guide contacts student’s arm and student moves his hand up to place it just above guide’s elbow
o Provides maximum informational feedback
o Allows guide freedom of movement
o Maintains constant contact
o Allows guide to observe
- HAND: thumb is on the inside of the guide’s arm with the fingers wrapped to grasp the other side – not too tight, not too loose
o Optimal environmental feedback
o Reduces risk of breaking contact
o Allows student to brace himself if guide trips/slips
- ARM: upper arm is parallel to side of body and forms an angle of 90* with lower arm
o Minimizes body width
o Reduces possibility of bumping into objects
o Provides maximum safety
o Be aware of: swinging out on turns, arm drifting, lag behind due to insecurity
- SHOULDER: grip shoulder is directly behind guide’s gripped shoulder, and student remains one half step behind guide at all times
o Minimizes combined body width
o Ensures perpendicular approach
o Reduces possibility of contacting objects
o Allows for reaction time and interpretation of cues
o Be aware of: following too closely (decreases reaction time), too far behind (may get inappropriate feedback)
BASIC HUMAN GUIDE
Why it’s important
- Safely travel through narrow passageways
When can you use it?
- Congested hallways
- Doorways
- Alleys
Process
- Guide moves arm behind him toward small of back
o Nonverbal indication
- Student extends arm
o Maximum safe distance
o Avoid stepping on heels
- POSITION: directly behind guide
o reduces combined body width
- Be aware of: posture changes due to new and insecure students
- Maintain consistent walking pace
NARROW PASSAGEWAYS
Why it’s important
- There might be some situations where you need to switch the side you will be guided on
- Will allow comfort in negotiating various situations
When can you use it?
- When you prefer one side over the other
- Social reasons (cultural norms/expectant behaviors)
- When there’s a handrail on one side of stairs
- When arm is tired
- Holding packages
Process
- Verbal indication to transfer sides
- Method 1:
o Grab guide arm with free hand and release original hand grip
Contact with free hand assures continual contact
o Turn 90* toward opposite arm
o HAND: Back of hand trails across guide’s back and grab opposite arm
Back of hand provides greater surface contact
Avoids catching on clothing and hair
- Method 2:
o Grip guide arm with free hand above guide hand
Secure continuous contact
o Extend both arms
Prevents student from stepping on heels
Be aware of: arms extending partially
o Release original grip and trail hand across guide’s back
Trailing helps locate opposite arm
o Grip opposite arm
Helps with security and stability
o Do not release free hand grip before transfer is complete
TRANSFERRING SIDES
Why it’s important
- In some situations, turning around quickly may be necessary
When can you use it?
- In crowded areas (hallways, auditoriums, public gatherings)
Process
- Verbal indication to start the process
o The only way the student will know
- Student releases grip and turns toward guide 180*
o Establishes consistent pattern
o Maintains orientation
o Looks more natural
o Uses minimum amount of space
- Reestablish contact
REVERSING DIRECTIONS