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A smartphone can make an ergonomic assessment surprisingly easy to start. Record the task, analyze the worker’s movement, and you can begin identifying ergonomic risk without setting up specialized cameras, sensors, or motion-capture equipment.
The harder part is capturing the right work. The highest reach may happen as a pallet fills, the greatest force during the first push of a cart, or the most repetitive exposure over a longer production run. Record only one convenient cycle, and you may get a clear assessment of an incomplete picture.
This guide explains how to use smartphone video to assess a job more effectively, from choosing the right task and recording representative work to adding the context the video cannot show and using the findings to guide an improvement.
“Assess the palletizer” is too broad. “Assess the low lifts required when the worker clears the final layers” gives you a defined piece of work to investigate.
Start with the reason the task needs attention. It may be:
NIOSH recommends using records, task evaluations, observation, and input from people familiar with the job to identify potential ergonomic risk.
Once you know why the task deserves attention, ask the worker or supervisor how the work changes during normal production.
Those answers define what your phone needs to capture. Without that context, you may record the job successfully while missing the part of the job you actually needed to assess.
Once you know what matters, the recording has a specific job: show that exposure under normal working conditions.
Consider palletizing. A worker may handle cases comfortably around waist height, then reach progressively higher as the pallet fills. Recording only the easiest portion of the task gives the assessment an incomplete picture.
Use the smartphone to preserve enough of the job to understand how the worker actually performs it:
NIOSH’s video-recording guidance for ergonomic job analysis follows the same principle: capture enough cycles, viewing angles, and worker variation to create a representative picture of the work.
Once the recording represents the movement, you can start asking what that movement means in the context of the full job.
Video can show how a worker bends, reaches, lifts, or moves through a task. The same movement can create very different exposure depending on the force required, how often it occurs, and how long the worker performs it.
That is why NIOSH identifies force, repetition, and posture as important physical stressors, with risk also affected by intensity, frequency, and duration.
A light assembly task may look unremarkable in one frame while the same hand motion repeats for much of the shift. A cart may move easily once it is rolling, while the highest exertion occurs during the initial push.
Depending on the task, collect information such as:
That information helps explain the movement and determines which assessment method fits the task.
Different methods answer different ergonomic questions. TuMeke’s guide to choosing an ergonomic assessment method separates common approaches by the types of work they evaluate:
Lifting shows why that distinction matters. The Revised NIOSH Lifting Equation considers variables including object weight, hand location, travel distance, asymmetry, lifting frequency, duration, and coupling quality.
The video helps describe the movement. The additional job information gives the assessment the context needed to interpret it.
Once the assessment identifies where exposure is building, the score should help the team answer a more useful question: What part of the job should change?
The answer may point toward:
Workers and operations personnel should help evaluate those options. A change can reduce one exposure while creating another problem, or it may simply fail to fit the way production actually runs.
After the change is implemented, record the task again.
Keep the second assessment reasonably comparable to the first. If the original video shows a full container at normal production speed and the follow-up shows lighter material or a different setup, a lower score may reflect those differences rather than the intervention.
The goal is to compare the task before and after an ergonomic change so the team can determine whether the exposure it originally identified actually improved.
A smartphone makes it easier to capture ergonomic risk where the work actually happens. But a useful assessment still has to move beyond the video. Safety teams need a way to analyze the task, understand what is contributing to exposure, decide where to intervene, and verify whether the change worked.
TuMeke helps connect those steps in one assessment workflow:
Start with a job your team has been trying to understand or improve. Run it through TuMeke’s free 14-day trial or schedule a demonstration, then use the same task to see what is driving the exposure, where to focus the intervention, and whether the change actually made a difference.
Yes. Video can be used to observe worker movement, posture, task cycles, and other physical demands during a job. A useful assessment still needs enough footage to represent the work and may require additional information about factors such as force, frequency, duration, and load. NIOSH recommends combining job observation with task-specific information.
The recording should show the worker’s body along with the workstation, materials, tools, or equipment involved in the task. Capture complete work cycles and any changes in position or setup that affect how the task is performed. Additional viewing angles may be useful when one angle does not clearly show the movement being evaluated.
Record enough cycles to capture the normal range of the task rather than relying on a single repetition. The appropriate amount depends on how much the job varies. If material position, worker technique, production conditions, or other factors change during the task, the recording should capture those differences rather than just the easiest cycle.
Break the job into the conditions or task segments that materially change the exposure. That might mean recording a pallet at different heights, a bin as it empties, setup and production work, or different product runs. NIOSH recommends considering the intensity, frequency, and duration of exposures when evaluating ergonomic risk.
Collect the job details needed to interpret what the video shows. Depending on the task, that may include load weight, task frequency, exposure duration, workstation dimensions, tool characteristics, required force, work rotation, and worker feedback. NIOSH recommends supplementing observation with task and workplace measurements when needed.
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A smartphone can make an ergonomic assessment surprisingly easy to start. Record the task, analyze the worker’s movement, and you can begin identifying ergonomic risk without setting up specialized cameras, sensors, or motion-capture equipment.
The harder part is capturing the right work. The highest reach may happen as a pallet fills, the greatest force during the first push of a cart, or the most repetitive exposure over a longer production run. Record only one convenient cycle, and you may get a clear assessment of an incomplete picture.
This guide explains how to use smartphone video to assess a job more effectively, from choosing the right task and recording representative work to adding the context the video cannot show and using the findings to guide an improvement.
“Assess the palletizer” is too broad. “Assess the low lifts required when the worker clears the final layers” gives you a defined piece of work to investigate.
Start with the reason the task needs attention. It may be:
NIOSH recommends using records, task evaluations, observation, and input from people familiar with the job to identify potential ergonomic risk.
Once you know why the task deserves attention, ask the worker or supervisor how the work changes during normal production.
Those answers define what your phone needs to capture. Without that context, you may record the job successfully while missing the part of the job you actually needed to assess.
Once you know what matters, the recording has a specific job: show that exposure under normal working conditions.
Consider palletizing. A worker may handle cases comfortably around waist height, then reach progressively higher as the pallet fills. Recording only the easiest portion of the task gives the assessment an incomplete picture.
Use the smartphone to preserve enough of the job to understand how the worker actually performs it:
NIOSH’s video-recording guidance for ergonomic job analysis follows the same principle: capture enough cycles, viewing angles, and worker variation to create a representative picture of the work.
Once the recording represents the movement, you can start asking what that movement means in the context of the full job.
Video can show how a worker bends, reaches, lifts, or moves through a task. The same movement can create very different exposure depending on the force required, how often it occurs, and how long the worker performs it.
That is why NIOSH identifies force, repetition, and posture as important physical stressors, with risk also affected by intensity, frequency, and duration.
A light assembly task may look unremarkable in one frame while the same hand motion repeats for much of the shift. A cart may move easily once it is rolling, while the highest exertion occurs during the initial push.
Depending on the task, collect information such as:
That information helps explain the movement and determines which assessment method fits the task.
Different methods answer different ergonomic questions. TuMeke’s guide to choosing an ergonomic assessment method separates common approaches by the types of work they evaluate:
Lifting shows why that distinction matters. The Revised NIOSH Lifting Equation considers variables including object weight, hand location, travel distance, asymmetry, lifting frequency, duration, and coupling quality.
The video helps describe the movement. The additional job information gives the assessment the context needed to interpret it.
Once the assessment identifies where exposure is building, the score should help the team answer a more useful question: What part of the job should change?
The answer may point toward:
Workers and operations personnel should help evaluate those options. A change can reduce one exposure while creating another problem, or it may simply fail to fit the way production actually runs.
After the change is implemented, record the task again.
Keep the second assessment reasonably comparable to the first. If the original video shows a full container at normal production speed and the follow-up shows lighter material or a different setup, a lower score may reflect those differences rather than the intervention.
The goal is to compare the task before and after an ergonomic change so the team can determine whether the exposure it originally identified actually improved.
A smartphone makes it easier to capture ergonomic risk where the work actually happens. But a useful assessment still has to move beyond the video. Safety teams need a way to analyze the task, understand what is contributing to exposure, decide where to intervene, and verify whether the change worked.
TuMeke helps connect those steps in one assessment workflow:
Start with a job your team has been trying to understand or improve. Run it through TuMeke’s free 14-day trial or schedule a demonstration, then use the same task to see what is driving the exposure, where to focus the intervention, and whether the change actually made a difference.
Yes. Video can be used to observe worker movement, posture, task cycles, and other physical demands during a job. A useful assessment still needs enough footage to represent the work and may require additional information about factors such as force, frequency, duration, and load. NIOSH recommends combining job observation with task-specific information.
The recording should show the worker’s body along with the workstation, materials, tools, or equipment involved in the task. Capture complete work cycles and any changes in position or setup that affect how the task is performed. Additional viewing angles may be useful when one angle does not clearly show the movement being evaluated.
Record enough cycles to capture the normal range of the task rather than relying on a single repetition. The appropriate amount depends on how much the job varies. If material position, worker technique, production conditions, or other factors change during the task, the recording should capture those differences rather than just the easiest cycle.
Break the job into the conditions or task segments that materially change the exposure. That might mean recording a pallet at different heights, a bin as it empties, setup and production work, or different product runs. NIOSH recommends considering the intensity, frequency, and duration of exposures when evaluating ergonomic risk.
Collect the job details needed to interpret what the video shows. Depending on the task, that may include load weight, task frequency, exposure duration, workstation dimensions, tool characteristics, required force, work rotation, and worker feedback. NIOSH recommends supplementing observation with task and workplace measurements when needed.
