Prehension involves grasping objects between surfaces of the hand. There are two main types of prehension - power grip and precision handling. Power grip uses flexion of all fingers and the thumb acts as a stabilizer. Precision handling involves skillful placement of an object between the fingers and thumb. There are different grips for various shaped objects including cylindrical, spherical, hook, and lateral grips. Precision handling requires finer motor control and includes pad to pad, tip to tip, and pad to side grips. The functional position of the wrist and hand allows equal tension across all wrist muscles.
this PPT contain detailed kinetics & kinematics of ankle joint & all joints of foot complex, muscles of ankle & foot complex, plantar arches & weight distribution during standing.
Extensor mechanism of finger, very easy notes. Referred from cynthia norkin. In this ppt in last two slides u can see the identify the parts. Its like a quiz for candidates who studying this ppt. They can able to know that how well they prepared this topic.
Thank you, From Liki pedia
(A student physiotherapist)
this PPT contain detailed kinetics & kinematics of ankle joint & all joints of foot complex, muscles of ankle & foot complex, plantar arches & weight distribution during standing.
Extensor mechanism of finger, very easy notes. Referred from cynthia norkin. In this ppt in last two slides u can see the identify the parts. Its like a quiz for candidates who studying this ppt. They can able to know that how well they prepared this topic.
Thank you, From Liki pedia
(A student physiotherapist)
Elbow complex is designed to serve hand.
They provide MOBILITY for Hand in space by apparent shortening and Lengthening of upper extremity.
They provide Stability for skillful and forceful movements
Joint mobilization refers to a technique of manual therapy by which a therapist applies a brief stretch of 30s or less through traction and gliding along a joint surface.
Posture - a perquisite for functional abilities in daily life. Posture is a combination of anatomy and physiology with inherent application of bio-mechanics and kinematics. Sitting, standing, walking are all functional activities depending on the ability of the body to support that posture to carry out each activity. Injuries and pathologies either postural or structural can massively change the bio-mechanics of posture and thus affect functional abilities.
Elbow complex is designed to serve hand.
They provide MOBILITY for Hand in space by apparent shortening and Lengthening of upper extremity.
They provide Stability for skillful and forceful movements
Joint mobilization refers to a technique of manual therapy by which a therapist applies a brief stretch of 30s or less through traction and gliding along a joint surface.
Posture - a perquisite for functional abilities in daily life. Posture is a combination of anatomy and physiology with inherent application of bio-mechanics and kinematics. Sitting, standing, walking are all functional activities depending on the ability of the body to support that posture to carry out each activity. Injuries and pathologies either postural or structural can massively change the bio-mechanics of posture and thus affect functional abilities.
Hand splinting in common orthopedic & neurological condition 1POLY GHOSH
This Presentation is about role of splinting in orthopedic condition and neurological condition. This presentation can be benefitted for Orthotist, Occupational therapist, phyiotherapist and Physical medicine and rehabilitation specialist.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
2. • Prehension activities involves grasping or taking hold
of an object between any 2 surfaces of hand. Thumb
paticipate in most but not all the prehension
activities.
Prehensi
on
Power
grip
(full
hand
Precision
handling
(finger thumb
prehension)
3. POWER GRIP PRECISION
Forceful act resulting in flexion of
all finger joints. The thumb acts
as a stabilizer to the object held
in fingers or palm.
Skillful placement of an object
between fingers or between
finger & thumb. No
involvement of palm.
Phases • Opening of hand
• Positioning the fingers
• Bringing the fingers to the
object
• Maintaining the static phase
• Opening of hand
• Positioning the fingers
• Bringing the fingers to the
object
Object is grasped to move
through space by some
proximal joints
Fingers & thumb grasps the
object to manipulate it
within the hand
Thumb is generally adducted. Thumb is generally abducted.
4.
5. POWER GRIP
• Fingers function to clamp on or hold an object into the
palm.
• Fingers sustain flexion position that varies in degree with
size, shape & weight of the object; palmar arches around
it.
• Thumb – serves as additional surface to finger
palm by adducting against the object.
• Different power grips –
• Cylindrical grip
• Spherical grip
• Hook grip
• Lateral prehension
6. • Involves use of all finger
flexors
• FDP works predominantly
• Interossei muscles –
primary MCP flexors,
abductors/adductors
• Thumb usually comes
arround the object
• FPL & thenarmuscles-
flexion & adduction of thumb.
l /
CYLINDRICAL
GRIP
7. • Abductor digiti minimi-Flex and abduct 5th mcp joint
• Opponent digiti minimi and flexor digiti minimi-opposition
and flexion of 5th mcp joint
• Cylindrical grasp is typically performed with the wrist in
neutral flexion/extension and slight ulnar deviation
• Eg:turning a door knob,Holding a glass,etc
8. • Most respect to
cylindrical grip but
greater spread of
fingers to encompass
the object.
• More activity of
interosseus
for e.g. holding a ball.
SPHERICAL
GRIP
9. • Specialised form
of prehension-
function
primarily of
fingers.
• Major activity of
FDP &FDS.
• Load –more distally
FDP, proximally
(FDS)
• Thumb- moderate to
full extension.
• E.g. - carrying a
briefcase.
HOOK GRIP
10. • Contact between
two fingers.
• MCP & IP joint- in
extension as
contigious MCP
joint simultaneously
abduct & adduct
• Extensor
musculature pre
dominates.
• E.g. holding a paper
LATERAL
PREHENSION
11. PRECISION
HANDLING
• Require much finer motor control & more dependent
on intact sensation.
• In “two–jaw chuck”,onejaw is thumb( abducted &
rotated) & 2nd jaw is by distal tip, the pad or the
side of finger.
• 3 varieties of prcesion are –
• Pad to pad prehension
• Tip to tip prehension
• Pad to side prehension.
12. • Involves opposition of pad
or pulp of thumb to pad or
pulp of finger.
• The pad has greatest
concentration of tactile
corpuscles.
• MCP & proximal IP joint
of the finger –partially
flexed
• Distal IP joint- extended or
slightly flexed.
• Thumb- CMC flexion,
abduction & rotation; MCP
& IP joint partially flexed or
extended.
• E.g. holding a foreceps
PAD TO PAD P
REHENSION
13. • Muscle activity
almost same to pad
to pad prehension
with some key
differences like IP
joint of the
fingers & the
thumb have range &
force to create full
flexion.
• MCP joint of
opposing finger
deviates ulnarly.
• E.g. holding a pen.
TIP TO TIP
PREHENSION
14. • Key grip or lateral
pinch.
• Between thumb &
side of index finger
• Thumb-more adducted
& less rotated least
precise form of
precesion handling.
• Eg.holding a key
SIDE TO SIDE
PREHENSION
15. FUNCTIONAL POSITION OF WRIST
& HAND
• The functional position is –
• Wrist complex in slight extension (20°) &
slight ulnar deviation (10°)
• Fingers moderately flexed at MCP joint (45°) &
proximal ip joint (30°) & slightly flexed at distal
IP joint
• It is the position in which all wrist muscles are
under equal tension.
