HSS 387 Chapter 12 Questions And
Answers
3hExercisehVariablesh-hCORRECThhANSWER-1)hFrequencyh-hnumberhofhtimeshperhweek
2)hIntensityh-hahcertainhpercentagehofhthehabsolutehmaximum
3)hDurationh-hnumberhofhminuteshperhexercisehbout
AccordinghtohthehSAIDhprinciple,hwhichhofhthehfollowinghishanhexamplehofhanhexercisehbesth
designedhtohstrengthenhthehlatissimushdorsihmusclehforhactionshduringhrockhclimbing?h-
hCORRECThhANSWER-Pull-ups
Activitieshthathenhancehmuscleshofhthehhands,hwrist,helbowhandhshoulderhjointsh-
hCORRECThhANSWER-Climbing,hhanging,hswinging
AggregatehMuscleshActionsh-hCORRECThhANSWER-
muscleshthathworkhtogetherhinhgroupshtohachievehahparticular
AllhofhthehfollowingharehopenhkinetichchainhexerciseshEXCEPT:
chin-uph&hpush-up
bicepshcurl
benchhpress
lathpullh-hCORRECThhANSWER-Push-uph&hChinhup
ClosedhKinetichChainh-hCORRECThhANSWER-
Distalhendhofhextremityhishfixedhtohahrelativelyhstablehsurface
Movementhinh1hjointhcannothoccurhw/ohcausinghpredictablehmovementhinhanotherhjointhinhex
tremityh
Motionhinvolveshbodyhmovinghinhrelationhtohthehrelativelyhfixedhdistalhsegment
, DuringhthehFollow-
Throughhphasehofhmosthsportshactivities,hnegativehaccelerationhofhthehlimbhishaccomplishe
dhthroughh______hcontractionshofhmuscleshwhichharehantagonistichtohthosehcontractinghinht
hehMovementhphase.h-hCORRECThhANSWER-Eccentric
DuringhthehLOWERINGhphasehofhthehbent-
overhrowh(elbowshin),hglenohumeralhextensorshcontracth______,hresultinghinhglenohumeral
h_________.h-hCORRECThhANSWER-Eccentrically;hshoulderhflexion
ElbowhExtensorsh-hCORRECThhANSWER-Tricepshbrachiih&hanconeus
Duringhelbowhflexion,muscleshworkhcooperativelyhinhtheirhlengtheninghtohallowhflexorshtohp
erformhtheirhtaskh-hMay/mayhnothbehunderhactivehtension:
→hNohactivehtensionh-
hmusclehlengtheninghishpassive,hcausehsolelyhbyhthehelbowhflexors→hActivehtensionh-
helbowhextensorsharehcontractingheccentricallyhtohcontrolhthehamounthandhspeedhofhlengthe
ning
ElbowhFlexorsh-hCORRECThhANSWER-bicepshbrachii,hbrachialis,h&hbrachioradialis
Concentricallyhcontracthtohcausehelbowhflexion-
hCanhalsohcontrolhthehoppositehactionh(functionhinhextensionhashantagonists)byheccentricall
yhcontracting
ExamplehofhAggregatehMusclehActionsh-hCORRECThhANSWER-
Elbowhflexorshworkhtogetherhashanhagonisthgrouphtohcausehflexionhinhoppositionhtohelbowhe
xtensors.
ExampleshofhMultiplehJointhExercisesh-hCORRECThhANSWER-UE:hPushhupsh&hDips
LE:hsquats
Follow-ThroughhPhaseh-hCORRECThhANSWER-
Immediatelyhafterhclimaxhofhthehmovementhphase
Goal:hBringhabouthnegativehaccelerationhtohinvolvedhlimbhorhbodyhsegment,husuallyhoverhwi
dehROM(decelerationhphase)
Highheccentrichcontractionhofhantagonistshtohmuscleshofhmovementhphase)
JointhIsolationhExercisesh-hCORRECThhANSWER-
Exerciseshinhwhichhonehjointhmoveshwithouthactionhinhotherhjoints
Isolatinghparticularhjointhtohconcentratehonhspecifichmusclehgrouph(singlehplane)
Nothveryhfunctionalhbchmosthactivitieshrequirehmultiplehjointshtohperformhtask
Answers
3hExercisehVariablesh-hCORRECThhANSWER-1)hFrequencyh-hnumberhofhtimeshperhweek
2)hIntensityh-hahcertainhpercentagehofhthehabsolutehmaximum
3)hDurationh-hnumberhofhminuteshperhexercisehbout
AccordinghtohthehSAIDhprinciple,hwhichhofhthehfollowinghishanhexamplehofhanhexercisehbesth
designedhtohstrengthenhthehlatissimushdorsihmusclehforhactionshduringhrockhclimbing?h-
hCORRECThhANSWER-Pull-ups
Activitieshthathenhancehmuscleshofhthehhands,hwrist,helbowhandhshoulderhjointsh-
hCORRECThhANSWER-Climbing,hhanging,hswinging
AggregatehMuscleshActionsh-hCORRECThhANSWER-
muscleshthathworkhtogetherhinhgroupshtohachievehahparticular
AllhofhthehfollowingharehopenhkinetichchainhexerciseshEXCEPT:
chin-uph&hpush-up
bicepshcurl
benchhpress
lathpullh-hCORRECThhANSWER-Push-uph&hChinhup
ClosedhKinetichChainh-hCORRECThhANSWER-
Distalhendhofhextremityhishfixedhtohahrelativelyhstablehsurface
Movementhinh1hjointhcannothoccurhw/ohcausinghpredictablehmovementhinhanotherhjointhinhex
tremityh
Motionhinvolveshbodyhmovinghinhrelationhtohthehrelativelyhfixedhdistalhsegment
, DuringhthehFollow-
Throughhphasehofhmosthsportshactivities,hnegativehaccelerationhofhthehlimbhishaccomplishe
dhthroughh______hcontractionshofhmuscleshwhichharehantagonistichtohthosehcontractinghinht
hehMovementhphase.h-hCORRECThhANSWER-Eccentric
DuringhthehLOWERINGhphasehofhthehbent-
overhrowh(elbowshin),hglenohumeralhextensorshcontracth______,hresultinghinhglenohumeral
h_________.h-hCORRECThhANSWER-Eccentrically;hshoulderhflexion
ElbowhExtensorsh-hCORRECThhANSWER-Tricepshbrachiih&hanconeus
Duringhelbowhflexion,muscleshworkhcooperativelyhinhtheirhlengtheninghtohallowhflexorshtohp
erformhtheirhtaskh-hMay/mayhnothbehunderhactivehtension:
→hNohactivehtensionh-
hmusclehlengtheninghishpassive,hcausehsolelyhbyhthehelbowhflexors→hActivehtensionh-
helbowhextensorsharehcontractingheccentricallyhtohcontrolhthehamounthandhspeedhofhlengthe
ning
ElbowhFlexorsh-hCORRECThhANSWER-bicepshbrachii,hbrachialis,h&hbrachioradialis
Concentricallyhcontracthtohcausehelbowhflexion-
hCanhalsohcontrolhthehoppositehactionh(functionhinhextensionhashantagonists)byheccentricall
yhcontracting
ExamplehofhAggregatehMusclehActionsh-hCORRECThhANSWER-
Elbowhflexorshworkhtogetherhashanhagonisthgrouphtohcausehflexionhinhoppositionhtohelbowhe
xtensors.
ExampleshofhMultiplehJointhExercisesh-hCORRECThhANSWER-UE:hPushhupsh&hDips
LE:hsquats
Follow-ThroughhPhaseh-hCORRECThhANSWER-
Immediatelyhafterhclimaxhofhthehmovementhphase
Goal:hBringhabouthnegativehaccelerationhtohinvolvedhlimbhorhbodyhsegment,husuallyhoverhwi
dehROM(decelerationhphase)
Highheccentrichcontractionhofhantagonistshtohmuscleshofhmovementhphase)
JointhIsolationhExercisesh-hCORRECThhANSWER-
Exerciseshinhwhichhonehjointhmoveshwithouthactionhinhotherhjoints
Isolatinghparticularhjointhtohconcentratehonhspecifichmusclehgrouph(singlehplane)
Nothveryhfunctionalhbchmosthactivitieshrequirehmultiplehjointshtohperformhtask