human activity analysis
DESCRIPTION
HUMAN ACTIVITYTRANSCRIPT
Scope:
In this scenario, the user will be reviewing the Human Activity Analysis workbench.
Procedure:
In the demanding global marketplace, ensuring that human fit, form, and function are comprehensively addressed is becoming an increasingly important aspect of design. Human Activity Analysis is based on a best-in-class human modeling system, which for many years has permitted detailed investigation into human-centered design issues in the context of a workplace before it physically exists. Human Activities Analysis specifically focuses on how a human will interact with objects in a working environment, as well as the effects of lifting, lowering, pushing, pulling and carrying on task performance. Human Activity Analysis evaluates all elements of human performance from static posture analysis to complex task activities. Human Activity Analysis possesses a range of tools and methods that specifically analye how a manikin will interact with objects in the virtual environment. !he "I#$H %&'%(%&&% and $nook and )iriello e*uations measure the effects of lifting(lowering, pushing(pulling, and carrying to fully optimie task performance. A designer can determine a number of task variables such as action limit, recommended weight limit, and maximum lifting(lowering weight. +enefits include accurately predicting human performance, ensuring conformance to health and safety standards and maximiing human comfort and safety. Human Activity Analysis is part of the -based human modeling solution that also includes Human +uilder, Human osture Analysis, and Human /easurement 0ditor. !ogether, these tools provide designers with a comprehensive, *uantitative and intuitive capability to design products that reflect the key skills as well as the limitations of the target audience.
%. Select the 0rgonomics 1esign 2 Analysis, Human Activity Analysis workbench. 34ile (5 open our Product5.CATProduct in the H+ rocess 1irectory.
260623501.doc 1 of 18
Postural Analysis using RUA. !Ra"id U""er imb Assessment#
%. In the Catalog directory, select the $ale manikin %ith &ngine catalog, and apply the Pick engine to the /anikin 3/ale Analysis5.
7. $elect the catalog 'emale Analysis catalog, and a""ly the pushing chair posture to the /anikin 34emale Analysis5.
260623501.doc 2 of 18
Ergonomics Design & Analysis V5R14
8. Click on the &rgonomic Tools toolbar, RUA Analysis, then $anikin !$ale Analysis#.
9. !he RUA Analysis 1ialog box appears.
. !he $ide is Right, 'inal score is (. )lick on the )) to get the advanced information.
260623501.doc 3 of 18
Ergonomics Design & Analysis V5R14
:. !here is a red score for the /uscle under 6rist !wist;
!he data displayed in the basic mode is also displayed in the advanced mode. !he advanced mode, in addition, also displays the intermediate scores. $ome of these scores are obtained by subjective values. In the basic mode, these values are automatically set to default< in the advanced mode the user can change these values. !he score will then be modified to reflect these new values.
1etails section The Details section that is displaed when ou press the !! "utton presents the score o"tained for each section and used to
calculate the final #$%& score. The parameters of si' of these se(ments can "e edited)
U""er arm* $houlder elevation Arm abduction Arm rotation
'orearm* Arm rotation
Wrist* 6rist deviation
Wrist t%ist* 6rist twist
+eck* "eck twist "eck side-bending
Trunk* !runk twist !runk side-bending
4or each of the parameters, there is a choice of three options; Auto, =es, and "o.
Auto* 3"o or =es5; >?@A is using the parameters defined in the >?@A arameters field 3!ools- #ptions-0rgonomics 1esign 2 Analysis5 to determine the state of a specific segment,
260623501.doc * of 18
Ergonomics Design & Analysis V5R14
i.e., $houlder in elevation or not, Arm in abduction or not, etc.
,es* +y selecting =es, this forces >?@A to consider that the segment is at the specified state 3elevation, abduction, etc.5 no matter what the posture of the selected manikin is.
+o* +y selecting "o, you force >?@A to consider that the segment is not at the specified state 3elevation, abduction, etc.5 no matter what the posture of the selected manikin is.
!hese intermediate scores, represented by a number and a color, are used to calculate the final >?@A score. !he following table indicates the score range for each segment as well as the associated color.
Segment Score Range
% 7 8 9 :
?pper arm % to :
4orearm % to 8
6rist % to 9
"eck % to :
!runk % to :
4or more information on the >?@A method, please read the following page that explains the steps for manually carrying the >?@A evaluation 6e will modify our osture. Here is some information below for the 1ialogue box.
osture !hree types of postures are predetermined;
$tatic Intermittent >epeated
$elect the one that best describes the workerBs situation.
>epeat 4re*uency !his parameter is used to determine the task fre*uency. !wo choices are available;
@ess than 9 times per minute /ore than 9 times per minute
$houlders are supported Arms are working across midline )heck balance $elect one or more of these options to provide additional information that may affect the output of the >?@A analysis. @oad ?se this field to specify the weight of the manipulated object. )lick the arrows to increase or decrease the weight or use the keyboard to directly type a value into this field.
$core !here are two modes for the score display; basic mode and advanced mode.
260623501.doc 5 of 18
Ergonomics Design & Analysis V5R14
+asic mode !he data displayed in this mode is the final score accompanied by a colored one. !he color of this one changes from green to red according to the final score. !he >?@A analysis examines the following risk factors; number of movements, static muscle work, force, working posture, and time worked without a break. All these factors combine to provide a final score that ranges from % to C.
% and 7; 3Dreen5 Indicates that the posture is acceptable if it is not maintained or repeated for long periods of time. 8 and 9; 3=ellow5 Indicates that further investigation is needed and changes may be re*uired. and :; 3#range5 Indicates that investigation and changes are re*uired soon. C; 3>ed5 Indicates that investigation and changes are re*uired immediately.
'. Change the load to -, and in the Side, select et. !ake a look at the score for the et side of the $anikin. Close the Rula Analysis dialog box.
260623501.doc 6 of 18
Tools/ptionsarameters and Measure$nits select
Mass. lose the #$%& analsis- and reopen.
Perorm a it/o%er Postural Analysis
0. In the &rgonomics Tools, select the it/o%er Analysis icon, and click on the $anikin !$ale Analysis#.
1. In the it/o%er Analysis !$ale Analysis# dialog box, In the 2uideline pull down menu, select the +34SH 00. 3/ake sure the Initial radio button is highlighted5
(. Click on the Record6$odiy button, this stores the inital pick position.
7. In the Catalog, $ale $anikin %ith engine.catalog , select the manikin, then the lit engine position, and A""ly. Click on the 'inal radio button, and click on the Record 6 $odiy button.
260623501.doc of 18
5. !he Score Results are shown in the Score area.
8. In the object weight, the motor weighs approximately %lbs, or :.'kg. Change the %eight to see the results. Close this %indo% when done.
260623501.doc 8 of 18
S"eciications !or +34SH 00#
0 lit every* ?se this specification to determine lift fre*uency. )lick on the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
9uration* ?se this field to enter the duration of the work in hours per day. !he work is considered;
• occasional if the value is one hour or less
• continuous if the value is ' hours
Cou"ling condition* ?se this function to *uantify the *uality of the hand-to-object. !he coupling *uality is classified as Dood, 4air, and oor.
• Dood - a comfortable grip in which the hand can easily wrap around the object
• 4air - a grip in which the hand can be flexed about &E degrees.
• oor - when the the object is hard to handle 3irregular, bulky, sharp edges, etc.5
4b:ect %eight* ?se this field to enter the load weight. !his value is used for the lifting index calculation.
Score !or +34SH 00# Immediately after the fre*uency and duration fields are completed, the results are displayed in the $core one.
4rigin !his result is based on the initial posture of the manikin.
• >ecommended 6eight @imit;
!he >6@ is the load weight that healthy workers can lift over a certain period of time without risk.
• @ifting Index;
!he @I provides a relative estimate of the level of physical stress. 9estination !his result is based on the final posture of the manikin.
• >ecommended 6eight @imit;
!he >6@ is the load weight that healthy workers can lift without risk.
• @ifting Index;
!he @I provides a relative estimate of the level of physical stress.
260623501.doc of 18
Perorm a Push/Pull Analysis
%. In the Catalog directory, select 'emale Analysis, and a""ly the posture Pushing Chair .
7. Select the Push/Pull analysis icon, and click on the $anikin !'emale Analysis#.
8. In the Push/Pull analysis dialog box, select the o"tions belo%.
!he specifications are listed below.
S"eciications
0 "ush every; ?se this field to determine the push fre*uency. )lick on the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
9istance o "ush* ?se this field to specify the distance of the push. )lick on the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
260623501.doc 10 of 18
Ergonomics Design & Analysis V5R14
9istance o "ull* ?se this field to specify the distance of the pull. )lick on the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
Po"ulation sam"le* !hree population percentiles are provided; &Eth, Cth, and Eth. !hese percentiles represent the percentage of the population able to perform the task safely. !he selected percentile takes the manikin gender into account.
Score Immediately after the $pecification fields are completed, the results are displayed in the $core one.
!he initial forces are re*uired to initiate the objectBs motion. As the object begins to move, these forces will decline to a relatively constant level 3sustained forces5.
$a;imum acce"table initial orce* !his value expresses the force re*uired to put an object into motion.
$a;imum acce"table sustained orce* !his value expresses the force re*uired to keep the object in motion.
9. $odiy the analysis posture and review the new score. $odiy the specifications, and review the new score.
. Close the Push/Pull Analysis window.
260623501.doc 11 of 18
Perorm a Carry Postural Analysis
%. Select the Carry Analysis icon, and click on the manikin !$ale Analysis#.
7. 6ith the manikin in the "osition as sho%n, in"ut this data.
8. !he results verify that the hands are at an invalid position.
9. oad the "ick "osition from the catalog manikin with engine, and revie% the results.
The 2uidelines
!he )arry Analysis dialog box contains only the $nook 2 )iriello guideline. !his dialog box is divided into four parts;
• /anikin; 1isplays the name of the selected manikin.
• Duideline - 1isplays the current guideline.
• $pecifications - )hoose or enter analysis criterion.
• $core - 1isplays the score obtained by the analysis.
$anikin* A read-only field displays the name of the selected manikin at the top of the dialog box.
260623501.doc 12 of 18
Ergonomics Design & Analysis V5R14
2uideline* !his list presents the guidelines available to perform )arry Analysis. #nly one guideline is available.
$pecifications
0 carry every* ?se this field to determine the carry fre*uency. )lick on the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
9istance o carry* !his specification is used to determine the distance the object will be carried. )lick the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
Po"ulation sam"le* !hree population percentiles are provided; &Eth, Cth, and Eth. !hese percentiles represent the percentage of the population able to perform the task safely. !he selected percentile takes the manikin gender into account.
Score* Immediately after the $pecification fields are completed, the results are displayed in the $core one.
$a;imum Acce"table Weight* !he maximum acceptable weight is defined as the weight that the selected population can carry with reasonable safety.
260623501.doc 13 of 18
Ergonomics Design & Analysis V5R14
<iomechanics Single Action Analysis
%. In the &rgonomic Tools toolbar, select the <iomechanics Single Action Analysis icon.
7. Click on the $anikin !$ale Analysis#, and the dialog box appears.
!his ergonomic tool measures biomechanical data on a worker in a given pose. 4rom the current manikin posture, the $ingle Action Analysis tool calculates and outputs information such as the lumbar spinal loads 3abdominal force, abdominal pressure, body movements5 and the forces and moments on manikin joints. All the output incorporated in the model are based on research results and algorithms published by the scientific community.
!he forces 3loads5 acting on the manikinBs hands are taken into account in the biomechanical analysis< these forces represent the load of carry, push, lift(lower, or pull, depending on the scenario, and are available for the hands only. +oth the @oad roperties and the +iomechanics $ingle Action Analysis dialog boxes can be open at the same time. !he last analysis is updated when the load is modified.
!hese are the tabs and associated information in this dialog box;
Summary tab !he $ummary tab gives general biomechanics information such as; @9-@ /oments @9-@ )ompression @9-@ Foint $hear Abdominal 4orce and ressure
260623501.doc 1* of 18
7/5 S"ine imit tab
!he @9-@ $pine @imit tab displays the evaluation of the posture and whether it exceeds the compression and joint shear limits recommended by "I#$H and the ?niversity of 6aterloo. !he information on this tab can be viewed as a list or as a chart, as shown below.
260623501.doc 15 of 18
=oint $oment Strength 9ata tab
!he Foint /oment $trength 1ata tab displays the evaluation of the percentage of a worker population that doesnBt have the strength to perform a task based on strength studies such as those by Askew, An, /orrey and )hao 3%&'C5 for the elbow, Goski and /cDill 3%&&95 for the shoulder, and !roup and )hapman 3%&:&5 for the lumbar. !his information can be displayed as a chart or as a list, as shown below;
260623501.doc 16 of 18
Reaction 'orces and $oments tab
!he >eaction 4orces and /oments displays, in detail, the reaction forces 3"5 and orthopedic moments 3"m5 proximal and distal segments.
Segment Positions tab
!he $egment ositions tab displays information 3position, angle, center of gravity, length5 about the segments.
260623501.doc 1 of 18
&;"ort results
?se the 0xport button to save the biomechanical data in a text file. In the 0xport results dialog box, select the type of information you want to save and click on #G.
!he biomechanical data is saved as a text file.
Close the file, %ithout saving, when completed.
260623501.doc 18 of 18
In this scenario, the user will be reviewing the Human Activity Analysis workbench.
Procedure:
In the demanding global marketplace, ensuring that human fit, form, and function are comprehensively addressed is becoming an increasingly important aspect of design. Human Activity Analysis is based on a best-in-class human modeling system, which for many years has permitted detailed investigation into human-centered design issues in the context of a workplace before it physically exists. Human Activities Analysis specifically focuses on how a human will interact with objects in a working environment, as well as the effects of lifting, lowering, pushing, pulling and carrying on task performance. Human Activity Analysis evaluates all elements of human performance from static posture analysis to complex task activities. Human Activity Analysis possesses a range of tools and methods that specifically analye how a manikin will interact with objects in the virtual environment. !he "I#$H %&'%(%&&% and $nook and )iriello e*uations measure the effects of lifting(lowering, pushing(pulling, and carrying to fully optimie task performance. A designer can determine a number of task variables such as action limit, recommended weight limit, and maximum lifting(lowering weight. +enefits include accurately predicting human performance, ensuring conformance to health and safety standards and maximiing human comfort and safety. Human Activity Analysis is part of the -based human modeling solution that also includes Human +uilder, Human osture Analysis, and Human /easurement 0ditor. !ogether, these tools provide designers with a comprehensive, *uantitative and intuitive capability to design products that reflect the key skills as well as the limitations of the target audience.
%. Select the 0rgonomics 1esign 2 Analysis, Human Activity Analysis workbench. 34ile (5 open our Product5.CATProduct in the H+ rocess 1irectory.
260623501.doc 1 of 18
Postural Analysis using RUA. !Ra"id U""er imb Assessment#
%. In the Catalog directory, select the $ale manikin %ith &ngine catalog, and apply the Pick engine to the /anikin 3/ale Analysis5.
7. $elect the catalog 'emale Analysis catalog, and a""ly the pushing chair posture to the /anikin 34emale Analysis5.
260623501.doc 2 of 18
Ergonomics Design & Analysis V5R14
8. Click on the &rgonomic Tools toolbar, RUA Analysis, then $anikin !$ale Analysis#.
9. !he RUA Analysis 1ialog box appears.
. !he $ide is Right, 'inal score is (. )lick on the )) to get the advanced information.
260623501.doc 3 of 18
Ergonomics Design & Analysis V5R14
:. !here is a red score for the /uscle under 6rist !wist;
!he data displayed in the basic mode is also displayed in the advanced mode. !he advanced mode, in addition, also displays the intermediate scores. $ome of these scores are obtained by subjective values. In the basic mode, these values are automatically set to default< in the advanced mode the user can change these values. !he score will then be modified to reflect these new values.
1etails section The Details section that is displaed when ou press the !! "utton presents the score o"tained for each section and used to
calculate the final #$%& score. The parameters of si' of these se(ments can "e edited)
U""er arm* $houlder elevation Arm abduction Arm rotation
'orearm* Arm rotation
Wrist* 6rist deviation
Wrist t%ist* 6rist twist
+eck* "eck twist "eck side-bending
Trunk* !runk twist !runk side-bending
4or each of the parameters, there is a choice of three options; Auto, =es, and "o.
Auto* 3"o or =es5; >?@A is using the parameters defined in the >?@A arameters field 3!ools- #ptions-0rgonomics 1esign 2 Analysis5 to determine the state of a specific segment,
260623501.doc * of 18
Ergonomics Design & Analysis V5R14
i.e., $houlder in elevation or not, Arm in abduction or not, etc.
,es* +y selecting =es, this forces >?@A to consider that the segment is at the specified state 3elevation, abduction, etc.5 no matter what the posture of the selected manikin is.
+o* +y selecting "o, you force >?@A to consider that the segment is not at the specified state 3elevation, abduction, etc.5 no matter what the posture of the selected manikin is.
!hese intermediate scores, represented by a number and a color, are used to calculate the final >?@A score. !he following table indicates the score range for each segment as well as the associated color.
Segment Score Range
% 7 8 9 :
?pper arm % to :
4orearm % to 8
6rist % to 9
"eck % to :
!runk % to :
4or more information on the >?@A method, please read the following page that explains the steps for manually carrying the >?@A evaluation 6e will modify our osture. Here is some information below for the 1ialogue box.
osture !hree types of postures are predetermined;
$tatic Intermittent >epeated
$elect the one that best describes the workerBs situation.
>epeat 4re*uency !his parameter is used to determine the task fre*uency. !wo choices are available;
@ess than 9 times per minute /ore than 9 times per minute
$houlders are supported Arms are working across midline )heck balance $elect one or more of these options to provide additional information that may affect the output of the >?@A analysis. @oad ?se this field to specify the weight of the manipulated object. )lick the arrows to increase or decrease the weight or use the keyboard to directly type a value into this field.
$core !here are two modes for the score display; basic mode and advanced mode.
260623501.doc 5 of 18
Ergonomics Design & Analysis V5R14
+asic mode !he data displayed in this mode is the final score accompanied by a colored one. !he color of this one changes from green to red according to the final score. !he >?@A analysis examines the following risk factors; number of movements, static muscle work, force, working posture, and time worked without a break. All these factors combine to provide a final score that ranges from % to C.
% and 7; 3Dreen5 Indicates that the posture is acceptable if it is not maintained or repeated for long periods of time. 8 and 9; 3=ellow5 Indicates that further investigation is needed and changes may be re*uired. and :; 3#range5 Indicates that investigation and changes are re*uired soon. C; 3>ed5 Indicates that investigation and changes are re*uired immediately.
'. Change the load to -, and in the Side, select et. !ake a look at the score for the et side of the $anikin. Close the Rula Analysis dialog box.
260623501.doc 6 of 18
Tools/ptionsarameters and Measure$nits select
Mass. lose the #$%& analsis- and reopen.
Perorm a it/o%er Postural Analysis
0. In the &rgonomics Tools, select the it/o%er Analysis icon, and click on the $anikin !$ale Analysis#.
1. In the it/o%er Analysis !$ale Analysis# dialog box, In the 2uideline pull down menu, select the +34SH 00. 3/ake sure the Initial radio button is highlighted5
(. Click on the Record6$odiy button, this stores the inital pick position.
7. In the Catalog, $ale $anikin %ith engine.catalog , select the manikin, then the lit engine position, and A""ly. Click on the 'inal radio button, and click on the Record 6 $odiy button.
260623501.doc of 18
5. !he Score Results are shown in the Score area.
8. In the object weight, the motor weighs approximately %lbs, or :.'kg. Change the %eight to see the results. Close this %indo% when done.
260623501.doc 8 of 18
S"eciications !or +34SH 00#
0 lit every* ?se this specification to determine lift fre*uency. )lick on the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
9uration* ?se this field to enter the duration of the work in hours per day. !he work is considered;
• occasional if the value is one hour or less
• continuous if the value is ' hours
Cou"ling condition* ?se this function to *uantify the *uality of the hand-to-object. !he coupling *uality is classified as Dood, 4air, and oor.
• Dood - a comfortable grip in which the hand can easily wrap around the object
• 4air - a grip in which the hand can be flexed about &E degrees.
• oor - when the the object is hard to handle 3irregular, bulky, sharp edges, etc.5
4b:ect %eight* ?se this field to enter the load weight. !his value is used for the lifting index calculation.
Score !or +34SH 00# Immediately after the fre*uency and duration fields are completed, the results are displayed in the $core one.
4rigin !his result is based on the initial posture of the manikin.
• >ecommended 6eight @imit;
!he >6@ is the load weight that healthy workers can lift over a certain period of time without risk.
• @ifting Index;
!he @I provides a relative estimate of the level of physical stress. 9estination !his result is based on the final posture of the manikin.
• >ecommended 6eight @imit;
!he >6@ is the load weight that healthy workers can lift without risk.
• @ifting Index;
!he @I provides a relative estimate of the level of physical stress.
260623501.doc of 18
Perorm a Push/Pull Analysis
%. In the Catalog directory, select 'emale Analysis, and a""ly the posture Pushing Chair .
7. Select the Push/Pull analysis icon, and click on the $anikin !'emale Analysis#.
8. In the Push/Pull analysis dialog box, select the o"tions belo%.
!he specifications are listed below.
S"eciications
0 "ush every; ?se this field to determine the push fre*uency. )lick on the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
9istance o "ush* ?se this field to specify the distance of the push. )lick on the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
260623501.doc 10 of 18
Ergonomics Design & Analysis V5R14
9istance o "ull* ?se this field to specify the distance of the pull. )lick on the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
Po"ulation sam"le* !hree population percentiles are provided; &Eth, Cth, and Eth. !hese percentiles represent the percentage of the population able to perform the task safely. !he selected percentile takes the manikin gender into account.
Score Immediately after the $pecification fields are completed, the results are displayed in the $core one.
!he initial forces are re*uired to initiate the objectBs motion. As the object begins to move, these forces will decline to a relatively constant level 3sustained forces5.
$a;imum acce"table initial orce* !his value expresses the force re*uired to put an object into motion.
$a;imum acce"table sustained orce* !his value expresses the force re*uired to keep the object in motion.
9. $odiy the analysis posture and review the new score. $odiy the specifications, and review the new score.
. Close the Push/Pull Analysis window.
260623501.doc 11 of 18
Perorm a Carry Postural Analysis
%. Select the Carry Analysis icon, and click on the manikin !$ale Analysis#.
7. 6ith the manikin in the "osition as sho%n, in"ut this data.
8. !he results verify that the hands are at an invalid position.
9. oad the "ick "osition from the catalog manikin with engine, and revie% the results.
The 2uidelines
!he )arry Analysis dialog box contains only the $nook 2 )iriello guideline. !his dialog box is divided into four parts;
• /anikin; 1isplays the name of the selected manikin.
• Duideline - 1isplays the current guideline.
• $pecifications - )hoose or enter analysis criterion.
• $core - 1isplays the score obtained by the analysis.
$anikin* A read-only field displays the name of the selected manikin at the top of the dialog box.
260623501.doc 12 of 18
Ergonomics Design & Analysis V5R14
2uideline* !his list presents the guidelines available to perform )arry Analysis. #nly one guideline is available.
$pecifications
0 carry every* ?se this field to determine the carry fre*uency. )lick on the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
9istance o carry* !his specification is used to determine the distance the object will be carried. )lick the arrows to increase or decrease the value indicated in the text field or directly enter a new value using the keyboard.
Po"ulation sam"le* !hree population percentiles are provided; &Eth, Cth, and Eth. !hese percentiles represent the percentage of the population able to perform the task safely. !he selected percentile takes the manikin gender into account.
Score* Immediately after the $pecification fields are completed, the results are displayed in the $core one.
$a;imum Acce"table Weight* !he maximum acceptable weight is defined as the weight that the selected population can carry with reasonable safety.
260623501.doc 13 of 18
Ergonomics Design & Analysis V5R14
<iomechanics Single Action Analysis
%. In the &rgonomic Tools toolbar, select the <iomechanics Single Action Analysis icon.
7. Click on the $anikin !$ale Analysis#, and the dialog box appears.
!his ergonomic tool measures biomechanical data on a worker in a given pose. 4rom the current manikin posture, the $ingle Action Analysis tool calculates and outputs information such as the lumbar spinal loads 3abdominal force, abdominal pressure, body movements5 and the forces and moments on manikin joints. All the output incorporated in the model are based on research results and algorithms published by the scientific community.
!he forces 3loads5 acting on the manikinBs hands are taken into account in the biomechanical analysis< these forces represent the load of carry, push, lift(lower, or pull, depending on the scenario, and are available for the hands only. +oth the @oad roperties and the +iomechanics $ingle Action Analysis dialog boxes can be open at the same time. !he last analysis is updated when the load is modified.
!hese are the tabs and associated information in this dialog box;
Summary tab !he $ummary tab gives general biomechanics information such as; @9-@ /oments @9-@ )ompression @9-@ Foint $hear Abdominal 4orce and ressure
260623501.doc 1* of 18
7/5 S"ine imit tab
!he @9-@ $pine @imit tab displays the evaluation of the posture and whether it exceeds the compression and joint shear limits recommended by "I#$H and the ?niversity of 6aterloo. !he information on this tab can be viewed as a list or as a chart, as shown below.
260623501.doc 15 of 18
=oint $oment Strength 9ata tab
!he Foint /oment $trength 1ata tab displays the evaluation of the percentage of a worker population that doesnBt have the strength to perform a task based on strength studies such as those by Askew, An, /orrey and )hao 3%&'C5 for the elbow, Goski and /cDill 3%&&95 for the shoulder, and !roup and )hapman 3%&:&5 for the lumbar. !his information can be displayed as a chart or as a list, as shown below;
260623501.doc 16 of 18
Reaction 'orces and $oments tab
!he >eaction 4orces and /oments displays, in detail, the reaction forces 3"5 and orthopedic moments 3"m5 proximal and distal segments.
Segment Positions tab
!he $egment ositions tab displays information 3position, angle, center of gravity, length5 about the segments.
260623501.doc 1 of 18
&;"ort results
?se the 0xport button to save the biomechanical data in a text file. In the 0xport results dialog box, select the type of information you want to save and click on #G.
!he biomechanical data is saved as a text file.
Close the file, %ithout saving, when completed.
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