Identifying Hazardous Manual Tasks
The risk factors that make a manual task hazardous, applied to real aged care work.
Last reviewed September 2026 · Part of Manual Handling Training for Aged Care Workers
Key learning points
- Name the main manual task risk factors
- Recognise those factors in everyday aged care tasks
- Understand how duration and frequency multiply risk
- Identify features of loads that increase risk
- Recognise how the person, the environment and work organisation add to risk
The risk factors
A manual task becomes hazardous when it involves one or more recognised risk factors. Most real tasks involve several at once, and their combination matters more than any single factor.
Movement, force and posture
- Repetitive movement
- Repeating the same movement over a period of time, such as repeated reaching during showering
- Sustained movement
- Continuing a movement without recovery, such as a long push down a corridor
- Repetitive force
- Applying force again and again, such as repeated rolling of a resident
- Sustained force
- Holding force for a period, such as supporting a limb while dressing
- High force
- Effort that is hard for most people, such as pushing a stuck bed
- Sudden force
- Unexpected loading, such as a resident's knees giving way
- Awkward posture
- Bending, twisting, overreaching, kneeling or working above shoulder height
- Sustained posture
- Holding any posture — even a neutral one — for a prolonged period
- Vibration
- Exposure through equipment or vehicles, less common but relevant in some roles
Duration, frequency and shift patterns
Duration and frequency
- How long the task is performed each time
- How many times it is repeated in a shift
- How many shifts in a row involve the same exposure
- Whether there is recovery time between exposures
The morning personal care round packs showers, dressing, continence care and transfers for several residents into a few hours, with little recovery between one person and the next. Night shifts bring repositioning for pressure care in dim light, when fatigue lowers your capacity and a drowsy resident may assist less. Long or double shifts extend the exposure further.
The person you support
When the load is a person, their characteristics are part of the risk. The hazardous manual tasks code of practice used in New South Wales says the person's ability to understand, communicate and assist in the move must be considered.
What to look for
- Dependency: how much weight they can take and how much they can do themselves
- Cognition: whether they can follow instructions, which can vary for people living with dementia
- Pain, which can make a person pull away or stop assisting mid-move
- Size and how weight is carried, such as a weaker side after a stroke
- Changes through the day from stiffness, tiredness, medication or illness
- Responsive behaviours such as grabbing or resisting when frightened, a source of sudden force
- Fragile skin, wounds and catheters that limit where you can hold them
Objects and loads
Load characteristics
- Heavy loads, including people who cannot assist
- Unstable loads that shift during movement
- Loads that are difficult to grip or hold close to the body
- Bulky loads that block your view or force overreaching
- Loads with no handles or with awkward shapes
Non-clinical work carries risk too. SafeWork NSW notes that over a quarter of reported musculoskeletal injuries in the state's residential aged care are to non-clinical workers such as kitchen and laundry staff.
Everyday objects
- Linen and laundry
- Wet linen is heavy, and deep machines and bins mean bending to the bottom
- Meal and tea trolleys
- Pushed over carpet, thresholds and ramps; a stiff castor adds sudden force
- Commodes
- Pushed with a person seated, over wet floors and door tracks
- Waste
- Full bags lifted into larger bins, sometimes above shoulder height
The environment
Where the task happens matters as much as the load. Before a transfer, check the space to move, the floor, the lighting, clutter and the bed height.
- Small bathrooms: the same code notes that a bathroom used with a hoist needs room for two workers, the resident and the equipment
- Beds kept low for falls prevention, or pushed against a wall
- Clutter, cables and stored equipment that block access or stop wheels
- Wet tiles, thick carpet, thresholds, ramps and slopes
- Dim lighting on night shifts
- Clients' homes, which are still your workplace: low beds, narrow bathrooms, steps and rugs
- Heat, which makes transfers more tiring and hands and equipment slippery, and cold, which brings heaters, rugs and extra layers into the room
How work is organised
Work organisation does not replace the physical risk factors; it makes them more likely. WorkSafe WA lists the way work is organised, including staffing and timing, among the sources of risk in residential care, and working alone and long hours in home care.
- Too few staff for tasks that need two
- Time pressure that tempts people to skip raising the bed or fetching the hoist
- Interruptions that pull you away mid-task and leave you rushing the rest
- One hoist shared across a wing, or slide sheets kept in one cupboard
- New starters and agency workers who do not yet know the residents or equipment
Putting it together
Look for combinations
One risk factor on its own may be manageable. Awkward posture plus sustained force plus high frequency is where injuries cluster. When you assess a task, count the factors.
Practical scenario
Scenario: reaching across the bed
A worker repeatedly leans across a bed to reposition a resident. The bed is against a wall on one side, the bed height is fixed, and the task is repeated several times each shift.
Which factors may make this task hazardous?
Reveal the explanation
Awkward posture from forward bending and reaching; sustained posture while holding the position; repetitive and sustained force to move the resident; and high frequency across the shift. Access is restricted because the bed is against the wall, and the fixed height prevents adjusting to a safe working posture. The load is also a person, so it can move unexpectedly.
Practical scenario
Scenario: the shower chair
A shower chair has a worn castor. Staff push harder to steer it and often twist to get it through the bathroom doorway.
What are the risk factors, and what is the most reliable fix?
Reveal the explanation
High and sudden force from the sticking castor, twisting posture at the doorway, and repetition every shower. The most reliable fix is to report and repair or replace the castor — that removes the source of the force rather than relying on staff technique.
Knowledge check
These questions are for your own learning. They are not part of the final assessment.
1. Which combination best describes the risk in repeatedly leaning across a low bed to reposition a resident?
Forward bending and reaching create awkward, sustained postures, combined with repeated force and frequent exposure.
2. Which load characteristic increases manual task risk?
Unstable loads create sudden force and unpredictable postures. People are inherently unstable loads.
3. Why does frequency matter when assessing a manual task?
Cumulative exposure without adequate recovery is a major contributor to musculoskeletal injury.