KIN340 Introduction 1

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    APPLIEDAPPLIEDBIOMECHANICSBIOMECHANICS

    KIN 340KIN 340

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    IntroductionIntroduction

    What is Biomchanics!What is Biomchanics!

    "h stud# o$ intrna% and &trna%"h stud# o$ intrna% and &trna%

    $orcs actin' on th (od# s'mnts)$orcs actin' on th (od# s'mnts)and th $$cts *roducd (# thsand th $$cts *roducd (# ths$orcs+$orcs+

    "h *rinci*%s o$ n'inrin')"h *rinci*%s o$ n'inrin')s*ci$ica%%# mchanics) a**%id tos*ci$ica%%# mchanics) a**%id tohuman mo,mnt+human mo,mnt+

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    Mechanics

    Statics

    constant state of

    motion

    Dynamics

    acceleration

    present

    Kinematics KineticsKinetics of

    motionless systems

    Constant

    velocity

    systems

    Kinematics Kinetics

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    Kinematics: study of the variables that describe

    or quantify motion

    Displacement Velocity Acceleration

    Kinetics study of the variables that cause or

    influence motion

    Forces Torques Mass

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    Problems studied by biomechanistsProblems studied b

    y biomechanists

    Biomchanists us th *rinci*%s o$Biomchanists us th *rinci*%s o$

    mchanics in th ana%#sis o$ humanmchanics in th ana%#sis o$ human

    mo,mnt to ans-r .ustions such as/mo,mnt to ans-r .ustions such as/

    + Ho- can human *r$ormanc (+ Ho- can human *r$ormanc (

    nhancd!nhancd!

    1+ Ho- can in2uris ( *r,ntd!1+ Ho- can in2uris ( *r,ntd!

    3+ Ho- can rha(i%itation $rom in2ur# (3+ Ho- can rha(i%itation $rom in2ur# (

    &*ditd!&*ditd!

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    Areas of BiomechanicsAreas of Biomechanics

    S*orts Biomchanics

    S*orts Biomchanics

    Occu*ationa% BiomchanicsOccu

    *ationa% Biomchanics

    C%inica% BiomchanicsC%inica% Biomchanics

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    Sports BiomechanicsSports Biomechanics

    B# undrstandin' and a**%#in' mchanica%B# undrstandin' and a**%#in' mchanica%conc*ts) s*orts (iomchanists assss thconc*ts) s*orts (iomchanists assss th

    most o*tima% -a# to mo, th (od# inmost o*tima% -a# to mo, th (od# in

    ordr to achi, ma&ima% *r$ormanc)ordr to achi, ma&ima% *r$ormanc)

    -hi%st minimiin' ris o$ in2ur#+-hi%st minimiin' ris o$ in2ur#+

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    Sequential motion:Sequential motion: th acc%rationth acc%ration

    o$ (od# s'mnts occurs s.untia%%#)o$ (od# s'mnts occurs s.untia%%#)

    in a *ro&ima% to dista% $ashionin a *ro&ima% to dista% $ashion

    Ida% coordination *attrn $or mostthro-in' and striin' si%%s+

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    Occupational BiomechanicsOccupational Biomechanics

    "h 'oa% is to dsi'n machins and"h 'oa% is to dsi'n machins and

    th -or*%ac to rduc r*titi,th -or*%ac to rduc r*titi,

    strss on -orrs5 2oints+strss on -orrs5 2oints+

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    Clinical BiomechanicsClinical Biomechanics

    C%inica% (iomchanists ana%# thC%inica% (iomchanists ana%# th

    mchanics o$ in2urd *atints andmchanics o$ in2urd *atints and

    *ro,id $d(ac 6(io$d(ac7 to*ro,id $d(ac 6(io$d(ac7 to

    rstor norma% $unction+rstor norma% $unction+

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