5.2 Range of Motion Exercises and Assistive/Prosthetic Devices
Key Takeaways
- Active range of motion (AROM) is performed by the resident alone, passive range of motion (PROM) is performed by the caregiver for a resident who cannot move independently, and active-assistive range of motion (AAROM) blends the two.
- The five basic joint movements are flexion, extension, abduction, adduction, and rotation — each with a distinct resident-care example.
- Contractures are permanent joint shortenings that regular range-of-motion exercises and proper positioning can largely prevent.
- Canes are held on the resident's strong side, walkers require a stable base before weight-bearing, and wheelchairs must have their wheels locked before every transfer.
- Assistive and prosthetic devices should close only the specific gap a resident cannot manage alone, never replace ability the resident still has.
Active ROM, Passive ROM, and Active-Assistive ROM
Range of motion (ROM) refers to the full movement possible at a joint — how far a knee bends, how far an arm lifts, how far the neck turns. Nurse aides work with three types of ROM exercise, and knowing which one applies to which resident is a frequent exam point:
- Active ROM (AROM): the resident moves the joint through its full range entirely on their own, with no physical help from the caregiver. This is used for residents who have the strength and coordination to move independently — the aide's job is to encourage the resident to do the movements, not to do the movements for them.
- Passive ROM (PROM): the caregiver moves the resident's joint through its range because the resident cannot move it independently — for example, a resident who is unconscious, paralyzed, or extremely weak. The aide supports the limb and moves it slowly and gently through the joint's normal range, never forcing it past the point where resistance or pain begins.
- Active-assistive ROM (AAROM): the resident moves the joint with some help from the caregiver or a device, used when the resident has partial strength or limited ability to complete the movement alone. AAROM sits between the other two — it still asks the resident to contribute effort, which supports the same independence goal covered in 5.1, while making sure the full movement is actually completed.
A simple rule to remember: use active ROM whenever the resident is able, use active-assistive ROM to support a resident who can partly move the joint, and reserve passive ROM for residents who truly cannot move the joint themselves. Defaulting to passive ROM for a resident who could do active or active-assistive ROM is another version of the "doing for" trap from 5.1 — it takes over a movement the resident could have practiced independently.
Basic Joint Movements
Understanding the vocabulary of joint movement helps a nurse aide follow care plan instructions correctly and describe what they observe accurately.
| Movement | Plain-Language Meaning | Resident-Care Example |
|---|---|---|
| Flexion | Bending a joint, decreasing the angle between two body parts | Bending the elbow to bring the hand toward the shoulder |
| Extension | Straightening a joint, increasing the angle between two body parts | Straightening a bent knee back out flat |
| Abduction | Moving a limb away from the midline of the body | Lifting an arm out to the side, away from the body |
| Adduction | Moving a limb toward the midline of the body | Bringing a raised arm back down against the side of the body |
| Rotation | Turning a joint around its own axis | Turning the head from side to side, or turning the hip inward or outward |
A quick memory trick: abduction moves a limb away ("ab-" as in "absent," away from the body), while adduction adds the limb back toward the body.
Preventing Contractures
A contracture is a permanent shortening or tightening of a muscle, tendon, or joint that develops when a joint is not moved through its range regularly, often after prolonged immobility. Once a contracture sets in — a knee that will not straighten, fingers curled permanently into the palm, a hip that will not extend — it can be difficult or impossible to reverse, and it interferes with positioning, hygiene, dressing, and comfort.
Contractures are largely preventable, and prevention is a core nurse aide responsibility:
- Perform or assist with ROM exercises exactly as scheduled on the care plan — skipping sessions allows stiffness to build.
- Reposition immobile residents regularly and keep joints in proper alignment, using pillows, hand rolls, or splints as ordered.
- Never force a joint past the point of resistance or pain during ROM — report pain, unusual resistance, or a decreasing range of motion to the nurse right away rather than pushing through it.
Assistive and Prosthetic Devices
Many residents maintain independence with the help of a device. Using each one correctly is both a safety issue and a restorative-care issue — a device used incorrectly can cause a fall, and a device left unused when it should be worn, like a prosthetic limb, can slow a resident's progress.
| Device | Purpose | Safe-Use Basics |
|---|---|---|
| Cane | Extra support for a resident with mild weakness on one side | Held on the strong side; the cane and the weak leg move forward together, then the strong leg follows |
| Walker | More support than a cane for balance or weakness | Resident steps into the walker; all legs or wheels should be steady on the floor before weight is placed on it |
| Wheelchair | Mobility for a resident who cannot safely walk long distances | Lock the wheels before any transfer; move footrests out of the way before the resident stands or sits |
| Prosthetic limb | Artificial replacement for a missing limb | Check the skin under the socket for redness or breakdown at each use; report skin changes immediately; encourage use per the care plan to support independence |
| Adaptive utensils (built-up handles, plate guards, rocker knives) | Allow self-feeding despite limited hand strength or coordination | Set up the utensil and let the resident self-feed, assisting only with the portions they genuinely cannot manage |
Notice how each device supports the same restorative principle from 5.1: the goal is always to preserve or extend the resident's own ability, with the device closing the specific gap the resident cannot close alone — never replacing ability the resident still has.
A nurse aide moves a resident's arm and leg through their full range of motion because the resident is unconscious and cannot move independently. Which type of exercise is this?
A nurse aide helps a resident lift an arm out to the side, away from the body, during a range-of-motion exercise. Which movement is being performed?
Which combination of actions best prevents contractures in a resident with limited mobility?
Match each joint movement term to its correct description.
Match each item on the left with the correct item on the right