Job Screen Training Webinar

Webinar Slides

Hi, my name is Mark Middlesworth, Athletic Trainer & Injury Prevention Specialist, and founder of Ergonomics Plus. ErgoPlus is a proactive team of injury prevention specialists with expertise in both ergonomics and healthcare.

ErgoPlus was established in 1989. Since that time, we’ve been on a mission to make the workplace safer, healthier, and better — one workplace, one workstation, and one person at a time.

In this webinar, we will be introducing the application and execution of the ErgoPlus Job Screen.
1.0 Job Screen Outputs & Utility

2.0 How to Perform a Job Screen

Selecting Tasks to Evaluate

Body Segment Evaluation

Additional Risk Factors

Exposure Duration

3.0 Job Screen Scoring Methods

4.0 3 Step-by-Step Examples

 

The ErgoPlus Job Screen was developed to provide a quick and simple method to screen jobs with a goal of identifying job tasks that have moderate or high-risk levels for MSD.

The Job Screen tool has three primary outputs. First, the job screen score on the top line of the results page provides an overall risk score at the job level, which can be used to quantify the overall risk of the job and to compare jobs across a department or facility wide. Second, the body segment scores (displayed both numerically and graphically) are an indication of the level of risk for each body segment evaluated. And third, difficult job tasks are identified and saved so they can be evaluated further.

 

An important goal of the Job Screen is help you identify moderate and high-risk tasks that need further assessment with a validated ergonomic assessment tool. By conducting an objective assessment, you’ll be able to determine the design goal or recommended weight limit and risk index for the job task. When moderate and high-risk tasks are identified, you will enter the tasks as shown here to flag for further evaluation.

 

When moderate to high risk tasks are flagged by the job screen, it’s important to select the correct tool for further evaluation. Pictured here is a simple matrix we’ve put together to match the type of job task with the corresponding recommended ergonomic assessment tool. Calculators for all of these evaluation tools, in addition to training materials and guides, are provided on the ErgoPlus Industrial platform.

 

This is a simple screening tool designed to be a quick evaluation of the exertion levels required by the job and to identify moderate and high-risk tasks to be evaluated further. The tool is subjective in nature and “best judgement” should be utilized in selecting the appropriate scores and ratings based on the requirements of the job. The Job Screen should be conducted quickly and efficiently, so don’t over think or analyze – simply use your best judgement after evaluating the key job tasks along with the Job Screen scoring selection criteria.

Now let’s walk through the Job screen step-by-step.

 

The evaluator should first prepare for the Job Screen assessment by interviewing the worker being evaluated and possibly others (supervisor, group leader, other experienced workers) to gain an understanding of the essential job tasks and observing the worker’s exertions, movements and postures during a few work cycles. Selection of the tasks to be evaluated should be based on: 1) job tasks with the most difficult and highest exertion (force load), 2) job tasks that require the most awkward (deviated) repetitive or sustained postures, 3) highly repetitive job tasks, and 4) job tasks that involve any moderate to high levels of vibration, contact stress, or impact force.

 

Step #1 in conducting a job screen using this tool is to complete the body segment evaluation. The job screen considers all essential job tasks and evaluates the MSD risk level for nine body segments:
Neck / Upper Back
R Upper Arm / Shoulder
L Upper Arm / Shoulder
R Forearm / Elbow
L Forearm / Elbow
R Wrist / Fingers
L Wrist / Fingers
Trunk / Lower Back
Legs

In addition, the job screen provides for an assessment of additional risk factors such as vibration, contact stress, impact stress – as well as exposure duration.

 

Three primary risk factors (force, posture, and repetition) are evaluated and scored for each of the nine body segments. Multipliers are then used to calculate an exertion index and body segment scores. We’ll provide more detail on how the calculations are performed a little later in this training video.

 

To determine the force scoring for each body segment, the evaluator will choose a score from the body segment rating scales outlined in the calculator. The score will be between 1 – 5 as pictured on the slide. The selection should be an estimate of the exertion level or effort required to perform the highest exertion tasks required by the job. The force score selected should answer the question, “When performing the key tasks of this job, what is the highest level of exertion effort required for the body segment being evaluated?” This method for force determination uses rating guidance for perceived exertion adapted from the Job Strain Index (1) and the Borg scale (2,3) along with force/load guidance from ErgoPlus. Each body segment has unique rating criteria for force which – again- can be viewed in the calculator when performing an assessment. The forearm / elbow force rating guidance is shown on this slide.

 

To determine the posture scoring for each body segment, the evaluator will choose one of four posture rating scores:
1 – Good Near Neutral
2 – Fair Slight Deviation
3 – Poor Marked Deviation
4 – Very Poor Extreme Deviation

The selection should be based on the most deviated postures (sustained or repeated) required to perform the essential and most demanding tasks of the job. The posture score selected should answer the question, “When performing the key tasks of this job, what is the most deviated (awkward) posture required for the body segment being evaluated?” Each body segment has a unique rating criteria for posture which can be viewed in the calculator when performing an assessment – the upper arm and shoulder posture rating criteria is pictured on this slide.

 

To determine the repetition scoring for each body segment, the evaluator will choose a score from the body segment rating scales outlined in the tool. The score will be between 1 – 5 as shown in this example.

The repetition score selection should be based on an estimate of the total number of forceful or awkward posture exertions. We recommend including tasks that score 3 or higher for force or posture, which could include multiple job tasks for the body segment being evaluated. The repetition score answers the question, “When performing the key tasks of this job, what is the repetition level required to perform all awkward postures or forceful exertions for the body segment being evaluated?” Each body segment has a unique rating criteria for repetition which can be viewed in the calculator when performing an assessment – the wrist & fingers repetition rating criteria is pictured on this slide.

 

The next step is to conduct a review of additional risk factors.

In addition to the body segment assessment, the job screen also evaluates three additional physical risk factors:
Hand-Arm Vibration
Contact Stress
Impact Stress

The exposure level scoring criteria for the additional physical risk factors are:
Nominal: minimal exposure < 30 minutes per day.
Moderate: 30 – 90 minutes total per day.
High: > 90 minutes total per day.

 

Using power tools (screw drivers, drills, impact wrenches, grinders, sanders, percussive tools) that have moderate to high levels of hand-arm vibration.

 

Local mechanical compression or pressure points of soft tissues of body against hard objects or surfaces. Such as: resting wrists or forearms on the edge of a desk or workstation while performing tasks, pressing of hard-edged tool handles into the soft tissues of the hand, leaning against a hard or sharp surface edge.

 

Repetitive impact of hand, base of palm, heel, or knee (such as using an impact tool, hammering, or using the hand or any body part as a hammer).

 

Exposure Duration: The final entry that will be made in the Job Screen calculator is the exposure duration – which is the number of hours per day that the worker performs the job that you are evaluating. Select the duration exposure for the job from one of the following:
< 2 hours per day
2-4 hours per day
4-8 hours per day
> 8 hours per day

 

For those interested in the nuts and bolts of the ErgoPlus Job Screen methodology, we’ve included a quick review in this section.

 

The job screen uses an exertion index rating for each of the nine body segments. The exertion index is the product of 3 multipliers for force, posture and repetition as outlined on this slide.

 


 

The Job Screen evaluates three additional physical risk factors:
Hand-Arm Vibration
Contact Stress
Impact Stress

 

Body segment total score – each of the nine body segment scores added together. Max score is 10 per body segment so max total score is 90.
Additional risk factors total score – each of the three additional risk factors added together. Again max score is 10 so max total score would be 30.

 

Examples: The following three Job Screen examples are provided to help demonstrate the application of the ErgoPlus Job Screen methodology and the calculator tool which is provided within the ErgoPlus Industrial software platform.

 

Step 1: Identify and document the most demanding job tasks identified by supervisor/worker interviews and job observation. You may add or subtract from this list during or after the job screen scoring is completed. The selection of the tasks to be evaluated should be based on: 1) the most difficult and highest exertion (force load) job tasks, 2) the most awkward (deviated) repetitive or sustained postures, 3) highly repetitive job tasks, and 4) job tasks that involve any moderate to high levels of vibration, contact stress, or impact force.

Die Casting Packout key job tasks identified:
Using file to remove flash off casting.
Using hammer to knock off excess flash.
Lift part off work bench.
Turn and carry part.
Lower and place part into finished parts pack out container.

Step 2 is to perform the body segment evaluation to determine the force, posture, and repetition exertions on the body segment being evaluated.

This slide shows the Neck/Upper back evaluation:

The force score selected should answer the question, “When performing the key tasks of this job, what is the highest level of exertion effort required for the body segment being evaluated?”
In this example, the force score is 3 – or moderate – due to forward bending of the neck and the requirement of a hard hat for PPE which weighs between 1 – 2 pounds.

The posture score selected should answer the question, “When performing the key tasks of this job, what is the most deviated (awkward) posture required for the body segment being evaluated?”
The posture score in this example is 3 or poor – requiring >20 degrees of forward flexion of the neck.

The repetition score answers the question, “When performing the key tasks of this job, what is the repetition level required to perform all awkward postures or forceful exertions for the body segment being evaluated?” So in this example, the neck repetition score is 4 or high – indicating 4-5 reps per minute or sustained posture of 5-10 seconds. Remember that the repetition score selection should be based on an estimate of the total number of forceful or awkward posture exertions. We recommend including tasks that score 3 or higher for force or posture, which often includes multiple job tasks for the body segment being evaluated.

After you’ve scored the body segments, don’t forget to identify and enter the difficult jobs tasks so they can be flagged for further assessment.

Upper Arm & Shoulder Evaluation:
Right – Force score is 3 or moderate indicating obvious effort being utilized. The posture is 3 indicating marked deviation of 45-90 degrees of shoulder flexion or abduction. The repetition score is 3 or moderate – 2-3 reps per minute.
Left – Force score is 4 or hard indicating substantial effort being utilized and >10 lb unilateral load when lowering and placing the part into the container. The posture score is 3 indicating marked deviation of 45-90 degrees of shoulder flexion or abduction. The repetition score is 2 or low for the lowering task – <1 rep per minute.

Forearm & Elbow Evaluation:
Right – Force score is 3 or moderate indicating obvious effort being utilized when using the file to remove excess flask off the part. The posture is 3 indicating the elbow in terminal extension between 0-14 degrees of elbow flexion. The repetition score is 3 or moderate – 2-3 reps per minute.
Left – Force score is 4 or hard indicating substantial effort being utilized and >10 lb unilateral load when lowering and placing the part into the container. The posture score is 2 indicating a slight deviation of 15-79 degrees of elbow flexion with no significant pronation or supination. The repetition score is 2 or low for the lowering task – <1 rep per minute.

Wrist & Fingers Evaluation:
Right – Force score is 4 or hard indicating substantial effort of an estimated 10-15 ponds being utilized when using the hammer to knock off excess flash. The posture is 2 indicating only a slight deviation of less than 15 degrees of flexion or extension. The repetition score is 3 or moderate – 9-14 repetitions per minute.
Left – Force score is 2 or light indicating noticeable effort being utilized and < 1 lb pinch and <5 lb. power grip. The posture is 2 indicating only a slight deviation of less than 15 degrees of flexion or extension with no significant radial or ulnar deviation. The repetition score is 2 or low for the left wrist & fingers indicating 4-8 pinch or grip reps per minute with no sustained pinch or grip.

Trunk / Lower Back Evaluation:
Force score for the lower back is 3 or moderate – indicating obvious exertion effort and an estimated 10 – 25 pounds of load on the back to lower parts into the container. The posture is 3 indicating marked deviation of 20-60 degrees of trunk flexion. The repetition score is 2 or low – < 1 repetition per minute.

Legs Evaluation:
Force score for the legs is 3 or moderate indicating obvious exertion effort when the worker lowered parts into the lower levels of the container using a golfers lifting technique with a unilateral load on the left lower extremity. The posture is 3 indicating marked deviation and one leg raised. The repetition score is 2 or low – < 1 repetition per minute.

Pictured on this slide is the completed body segment section of the ErgoPlus Job Screen calculator.

Step 3: Determine Additional Risk Factor Scores:
In addition to the body segment assessment, the job screen also evaluates three additional physical risk factors:
Hand-Arm Vibration – Such as using power tools (screw drivers, drills, impact wrenches, grinders, sanders, percussive tools) that have moderate to high levels of hand-arm vibration.
In this example there was found to be nominal exposure <30 minutes per day.
Contact Stress – Local mechanical compression or pressure points of soft tissues of body against hard objects or surfaces. Such as: resting wrists or forearms on the edge of a desk or workstation while performing tasks, pressing of hard-edged tool handles into the soft tissues of the hand, leaning against a hard or sharp surface edge.
In this example there is moderate exposure to contact stress for a total of 30 – 90 minutes per work shift.
Impact Stress – Repetitive impact of hand, base of palm, heel, or knee (such as using an impact tool such as a hammer, or using the hand, foot, or knee as a hammer) more than 5 times per 30 minutes.
In this example there is moderate exposure to contact stress and hammer use for a total of 30 – 90 minutes per work shift.

Step 4 : Determine the Exposure Duration:
This is the final entry that will be made in the Job Screen calculator. The exposure duration is the number of hours per day that the worker performs the job that you are evaluating. Select the duration exposure for the job from one of the following selection options:
< 2 hours per day
2-4 hours per day
4-8 hours per day
> 8 hours per day

In this example, the exposure duration is 4-8 hours per day.

Step 5: Calculate the results of the Job Screen by pressing the “CALCULATE” button lower left of the additional risk factors section.

Step 6: Results of the Job Screen
The Job Screen tool has three primary outputs. First, the job screen score on the top line – in this example, the total score is 86. The total score quantifies the overall risk at the job level, which can be used to compare job exertion levels across a department or facility wide. This score indicates very high MSD risk at the job level. Second, the body segment scores are displayed both numerically and graphically. These values are an indication of the level of risk for each body segment evaluated. And third, difficult job tasks are identified and saved so they can be evaluated further.

 

Example 2 – Coil Winding: Identify and document the most demanding job tasks identified by supervisor/worker interviews and job observation. You may add or subtract from this list during or after the job screen scoring is completed. Again, selection of the tasks to be evaluated should be based on: 1) the most difficult and highest exertion (force load) job tasks, 2) the most awkward (deviated) repetitive or sustained postures, 3) highly repetitive job tasks, and 4) job tasks that involve any moderate to high levels of vibration, contact stress, or impact force.

Coil Winding key job tasks identified:
Prep wire
Tape down wire
Install connection taps
Cut finish wire
Hammer down start & finish wire

Step 2 is to perform the body segment evaluation to determine the force, posture, and repetition exertions on the body segment being evaluated.

This slide shows the Neck/Upper back evaluation:

The force score selected should answer the question, “When performing the key tasks of this job, what is the highest level of exertion effort required for the body segment being evaluated?”
In this example, the force score is 2 – or light – with some repeated or sustained postures requiring noticeable effort.

The posture score selected should answer the question, “When performing the key tasks of this job, what is the most deviated (awkward) posture required for the body segment being evaluated?”
The posture score in this example is 2 or fair – with some job task requiring slight deviation of 10-20 degrees of forward flexion of the neck.

The repetition score answers the question, “When performing the key tasks of this job, what is the repetition level required to perform all awkward postures or forceful exertions for the body segment being evaluated?” So in this example, the neck repetition score is 2 or low – , ,1 forward flexion reps per minute.

After you’ve scored the body segments, don’t forget to identify and enter any difficult jobs tasks so they can be flagged for further assessment.

Upper Arm & Shoulder Evaluation:
Right – Force score is 4 or hard – substantial effort or unilateral load of > 10 pound required to perform some job tasks. The posture is 3 or poor – indicating marked deviation of 46-90 degrees of shoulder flexion or abduction. The repetition score is 2 or low – because key job tasks require < 1 rep per minute.
Left – Force score is 2 or light indicating noticeable effort being utilized and , 5 lb unilateral loads on the shoulder and upper arm. The posture score is 3 or poor – indicating marked deviation of 46-90 degrees of shoulder flexion or abduction. The repetition score is 2 or low for the lowering task – <1 rep per minute.

After you’ve scored the body segments, don’t forget to identify and enter any difficult jobs tasks so they can be flagged for further assessment.

Forearm & Elbow Evaluation:
Right – Force score is 3 or moderate indicating obvious effort being utilized when hammering down start & finish wire. The posture is 2 indicating a slight deviation of 101-130 degrees of elbow flexion. The repetition score is 3 or moderate – 2-3 reps per minute.
Left – Force score is 1 or very indicating a relaxed effort . The posture score is 1 indicating near neutral elbow flexion with no pronation or supination. The repetition score is 1 or very low – as there is <1 repetition required per every 5 minutes.

Wrist & Fingers Evaluation:
Right – Force score is 3 or moderate indicating obvious effort of an estimated 2-3 lbs. or pinch force required. The posture is 2 indicating only a slight deviation of less than 15 degrees of flexion or extension. The repetition score is 3 or moderate – 9-14 repetitions per minute when hammering wire.
Left – Force score is 2 or light indicating noticeable effort being utilized and < 1 lb pinch and <5 lb. power grip. The posture is 1 or good – indicating near neutral posture of the wrist with no significant radial or ulnar deviation. The repetition score is 3 or moderate for the left wrist & fingers – as multiple tasks require 9-14 pinch or grip repetitions and/or sustained pinch or grip for less than 5 seconds.

Trunk / Lower Back Evaluation:
Force score for the lower back is 2 or light – indicating some noticeable exertion effort estimated at less than10 pounds of load on the back. The posture is 2 indicating slight deviation of 0-20 degrees of trunk flexion. The repetition score is 2 or low – < 1 repetition per minute.

Legs Evaluation:
Force score for the legs is 1 or very light which indicates a relaxed effort of the lower extremities. The posture is 1 or good indicating near neutral posture and bilateral weight bearing during job tasks. The repetition score is 2 or low – < 1 repetition per minute.

Pictured on this slide is the completed body segment section of the ErgoPlus Job Screen calculator for Example #2.

Step 3: Determine Additional Risk Factor Scores:
In addition to the body segment assessment, the job screen also evaluates three additional physical risk factors:
Hand-Arm Vibration – Such as using power tools (screw drivers, drills, impact wrenches, grinders, sanders, percussive tools) that have moderate to high levels of hand-arm vibration.
In this example there was found to be nominal exposure <30 minutes per day.
Contact Stress – Local mechanical compression or pressure points of soft tissues of body against hard objects or surfaces. Such as: resting wrists or forearms on the edge of a desk or workstation while performing tasks, pressing of hard-edged tool handles into the soft tissues of the hand, leaning against a hard or sharp surface edge.
In this example there is nominal exposure to contact stress for a total exposure of < 30 minutes per day..
Impact Stress – Repetitive impact of hand, base of palm, heel, or knee (such as using an impact tool such as a hammer, or using the hand, foot, or knee as a hammer) more than 5 times per 30 minutes.
In this example there is moderate exposure to contact stress and hammer use for a total of 30 – 90 minutes per work shift.

Step 4 : Determine the Exposure Duration:
This is the final entry selection that will be made in the Job Screen calculator. The exposure duration is the number of hours per day that the worker performs the job that you are evaluating. Select the duration exposure from one of the following options:
< 2 hours per day
2-4 hours per day
4-8 hours per day
> 8 hours per day

In this example, the exposure duration is 2-4 hours per day.

Step 5: Calculate the results of the Job Screen by pressing the “CALCULATE” button lower left of the additional risk factors section.

Step 6: Results of the Job Screen
The Job Screen tool has three primary outputs. First, the job screen score on the top line – in this example, the total score is 35. The total score quantifies the overall risk at the job level, which can be used to compare job exertion levels across a department or facility wide. This score indicates moderate MSD risk at the job level. Second, the body segment scores are displayed both numerically and graphically. These values are an indication of the level of risk for each body segment evaluated. And third, difficult job tasks are identified and saved so they can be evaluated further.

 

Receiving Department – Door Wrapping: Identify and document the most demanding job tasks identified by supervisor/worker interviews and job observation. Selection of the tasks to be evaluated should be based on: 1) the most difficult and highest exertion (force load) job tasks, 2) the most awkward (deviated) repetitive or sustained postures, 3) highly repetitive job tasks, and 4) job tasks that involve any moderate to high levels of vibration, contact stress, or impact force.

Door Wrapping key job tasks identified:
Wrap door
Remove door from pallet and place onto wrapper
Set wrapper to proper height and clamp door
Remove door from pallet and place onto wrapper

Step 2 is to perform the body segment evaluation to determine the force, posture, and repetition exertions on the body segment being evaluated.

This slide shows the Neck/Upper back evaluation:

The force score selected should answer the question, “When performing the key tasks of this job, what is the highest level of exertion effort required for the body segment being evaluated?”
In this example, the force score is 2 – or light – with some repeated or sustained postures requiring noticeable effort.

The posture score selected should answer the question, “When performing the key tasks of this job, what is the most deviated (awkward) posture required for the body segment being evaluated?”
The posture score in this example is 3 or poor – requiring >20 degrees of forward flexion of the neck.

The repetition score answers the question, “When performing the key tasks of this job, what is the repetition level required to perform all awkward postures or forceful exertions for the body segment being evaluated?” So in this example, the neck repetition score is 3 or moderate – indicating 2-3 reps per minute and no significant sustained poor posture. Remember that the repetition score selection should be based on an estimate of the total number of forceful or awkward posture exertions. We recommend including tasks that score 3 or higher for force or posture, which often includes multiple job tasks for the body segment being evaluated.

After you’ve scored the body segments, don’t forget to identify and enter the difficult jobs tasks so they can be flagged for further assessment.

Upper Arm & Shoulder Evaluation:
Right – Force score is 4 or hard – substantial effort with changed expression and unilateral load of > 10-15 pounds required to perform some job tasks. The posture is 2 or fair indicating slight deviation of 21-45 degrees of shoulder flexion or abduction. The repetition score is 2 or low – because key job tasks require < 1 rep per minute.
Left – Force score is 4 or hard – substantial effort with changed expression and unilateral load of > 10-15 pounds required to perform some job tasks. The posture is 2 or fair indicating slight deviation of 21-45 degrees of shoulder flexion or abduction. The repetition score is 2 or low – as key job tasks require < 1 rep per minute.

After you’ve scored the body segments, don’t forget to identify and enter any difficult jobs tasks so they can be flagged for further assessment.

Forearm & Elbow Evaluation:
Right – Force score is 4 or hard – substantial effort with changed expression and unilateral load of > 10-15 pounds required to perform some job tasks. The posture score is 3 or very poor – indicating significant right forearm supination. The repetition score is 1 or very low – < 1 rep per every 5 minutes.
Left – Force score is 4 or hard – substantial effort with changed expression and unilateral load of > 10-15 pounds required to perform some job tasks. The posture score is 2 or fair – indicating slight deviation 101 – 130 degrees of elbow flexion with no pronation or supination. The repetition score is 1 or very low – as there is <1 repetition required per every 5 minutes.

Wrist & Fingers Evaluation:
Right – Force score is 4 or hard – substantial effort with changed expression and 4-5 lbs. of pinch force and power grip force of 10-15 pounds power grip required to perform some job tasks. The posture is 2 indicating only a slight deviation of less than 15 degrees of flexion or extension. The repetition score is 2 or low – 4-8 repetitions per minute with no sustained pinch or grip required.
Left – Force score is 4 or hard – substantial effort with changed expression and 4-5 lbs. of pinch force and power grip force of 10-15 pounds power grip required to perform some job tasks. The posture score is 1 or near neutral. The repetition score is 2 or low – 4-8 repetitions per minute with no sustained pinch or grip required.

Trunk / Lower Back Evaluation:
Force score for the lower back is 4 or hard – indicating substantial effort with changed expression and 26-40 pounds of load on the back to lift the door. The posture is 3 indicating marked deviation of 20-60 degrees of trunk flexion. The repetition score is 2 or low – < 1 repetition every minute.

Legs Evaluation:
Force score for the legs is 2 or light indicating noticeable exertion effort of < 5 loads of foot pedal activation load. The posture is 1 or good – indicating near neutral posture of the lower extremity. The repetition score is 2 or low – <1 repetition per minute.

Pictured on this slide is the completed body segment section of the ErgoPlus Job Screen calculator for Example #3.

Step 3: Determine Additional Risk Factor Scores:
In addition to the body segment assessment, the job screen also evaluates three additional physical risk factors:
Hand-Arm Vibration – Such as using power tools (screw drivers, drills, impact wrenches, grinders, sanders, percussive tools) that have moderate to high levels of hand-arm vibration.
In this example there was found to be nominal exposure <30 minutes per day.
Contact Stress – Local mechanical compression or pressure points of soft tissues of body against hard objects or surfaces. Such as: resting wrists or forearms on the edge of a desk or workstation while performing tasks, pressing of hard-edged tool handles into the soft tissues of the hand, leaning against a hard or sharp surface edge.
In this example there is moderate exposure to contact stress for a total exposure of 30-90 minutes per day..
Impact Stress – Repetitive impact of hand, base of palm, heel, or knee (such as using an impact tool such as a hammer, or using the hand, foot, or knee as a hammer) more than 5 times per 30 minutes.
In this example there was found to be nominal exposure <30 minutes per day.

Step 4 : Determine the Exposure Duration:
This is the final entry selection that will be made in the Job Screen calculator. The exposure duration is the number of hours per day that the worker performs the job that you are evaluating. Select the duration exposure from one of the following options:
< 2 hours per day
2-4 hours per day
4-8 hours per day
> 8 hours per day

In this example, the exposure duration is 2-4 hours per day.

Step 5: Calculate the results of the Job Screen by pressing the “CALCULATE” button lower left of the additional risk factors section.

Step 6: Results of the Job Screen
The Job Screen tool has three primary outputs. First, the job screen score on the top line – in this example, the total score is 54. The total score quantifies the overall risk at the job level, which can be used to compare job exertion levels across a department or facility wide. This score indicates high MSD risk at the job level. Second, the body segment scores are displayed both numerically and graphically. These values are an indication of the level of risk for each body segment evaluated. And third, difficult job tasks are identified and saved so they can be evaluated further.

References listed here were used in the development of the ErgoPlus Job Screen.

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