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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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