Range of Motion Exercises for CNAs: Step-by-Step Guide and Exam Tips

Range of motion exercises are gentle, controlled movements that take a joint through its full natural movement. For residents who cannot move their own limbs, a CNA performs these movements for them. This is called passive range of motion, meaning the resident's muscles are not doing any work. The CNA provides all the movement while the resident relaxes. These exercises are a routine part of daily care for residents with conditions like stroke, paralysis, prolonged bed rest, or severe arthritis.

The NNAAP skills exam tests range of motion as an official skill. Examiners watch not only that you perform the correct motions at each joint, but also that you support the limb properly and stop immediately if the resident reports pain. Knowing the joints, knowing the names of the motions, and knowing the safety rules puts you well ahead on exam day.

Why This Skill Matters on the CNA Exam

The NNAAP evaluator scores you on whether you support the joint both above and below during each movement, whether you move slowly and smoothly, and whether you respond correctly to pain. Moving too fast, gripping in one place only, or continuing movement when a resident indicates discomfort are all errors that will cost you points.

The exam tests specific joint motions, so you need to know the vocabulary. Terms like flexion, extension, abduction, and adduction come up during skills lab practice and in the test itself. This guide defines each one as it comes up so you can connect the word to the physical movement.

Beyond the exam, range of motion is one of the most clinically meaningful skills you will learn. The consequences of skipping it with real residents are serious and often irreversible, which is exactly why it is emphasized in training. Check with your state's testing provider for the specific checklist used in your region.

Three Types of Range of Motion

Before getting into the steps, it helps to understand the three categories your instructors and textbooks will refer to.

• Passive range of motion: The CNA moves the resident's joint through its full range. The resident does not use their own muscles at all. This is what CNAs perform on residents who cannot move a limb independently.
• Active-assistive range of motion: The resident tries to move the joint on their own, and the CNA provides just enough help to complete the motion. This is used when a resident has some muscle strength but not enough to complete a full movement.
• Active range of motion: The resident moves entirely on their own. The CNA may encourage this but does not physically assist. A therapist usually directs this type.

On the NNAAP exam, the skill you will be evaluated on is passive range of motion, unless your testing site specifies otherwise.

Why Range of Motion Matters Clinically

When a joint is not moved regularly, the muscles and tendons around it slowly shorten. Over time, this shortening becomes permanent, and the joint can no longer straighten or bend fully. This condition is called a contracture. A contracted joint is stiff, often painful, and very difficult to reverse once it forms. Contractures make dressing harder, make personal care more uncomfortable, and reduce a resident's quality of life significantly. Regular range of motion exercises are the primary prevention.

In addition to preventing contractures, range of motion improves circulation to the limb, helps maintain muscle tone even in unused muscles, and can reduce discomfort from stiffness. For residents who are largely immobile, it may be one of the few forms of physical stimulation they receive each day.

What You Need

• A hospital bed or firm surface the resident can lie flat on
• Bath blanket or sheet for draping
• Gloves (if there is any open skin or wound near the area being exercised)

Joint Motions You Need to Know

The NNAAP exam tests specific motions at specific joints. Learn both the term and the physical movement it describes.

• Flexion: bending a joint, decreasing the angle between body parts (e.g., bending the elbow so your hand moves toward your shoulder)
• Extension: straightening a joint back to its neutral position
• Abduction: moving a limb away from the center of the body (raising the arm out to the side)
• Adduction: moving a limb back toward the center of the body
• Internal rotation: turning the limb inward toward the body's midline
• External rotation: turning the limb outward away from the body's midline
• Pronation: rotating the forearm so the palm faces down
• Supination: rotating the forearm so the palm faces up
• Dorsiflexion: pulling the top of the foot toward the shin (foot points up)
• Plantar flexion: pointing the foot away from the shin (foot points down, like a ballet position)
• Inversion: turning the sole of the foot inward
• Eversion: turning the sole of the foot outward
• Radial deviation: bending the wrist toward the thumb side
• Ulnar deviation: bending the wrist toward the pinky side

Step-by-Step: Passive Range of Motion Exercises

1. Wash your hands. Proper hand washing before patient contact is part of every NNAAP skill. It is scored.
2. Identify the resident and explain the procedure. Tell them you are going to gently move their joints and that they should let you know right away if anything hurts. This builds trust and ensures you get accurate feedback during the exercise.
3. Provide privacy and position the resident supine. Close the curtain or door. Assist the resident to lie flat on their back (this position is called supine) with their body in alignment. Cover them with a bath blanket and only expose the limb you are actively working on.
4. Lower the side rail on your working side. You need unobstructed access to the limb. Never reach over a raised side rail to perform ROM, you lose control and leverage.
5. Begin with the shoulder. Support above and below. Cradle the arm by supporting it at the elbow joint and the wrist. Never grip just one spot. Work through these motions, 3 to 5 slow repetitions each: flexion and extension (raise the arm straight forward and return), abduction and adduction (raise the arm out to the side and return), and internal and external rotation (roll the arm inward and outward at the shoulder). Move slowly and watch the resident's face for any signs of pain.
6. Move to the elbow. Keep supporting the arm. Flex and extend the elbow (bend and straighten). Then pronate and supinate the forearm (rotate so the palm faces down, then faces up). Perform 3 to 5 repetitions of each motion.
7. Move to the wrist. Support the forearm just above the wrist. Flex the wrist (bend the hand down toward the forearm), extend it (bend the hand back up), then perform radial deviation (bend toward the thumb side) and ulnar deviation (bend toward the pinky side). 3 to 5 repetitions each.
8. Move to the hip. Reposition to the lower body. Support the leg at the thigh and below the knee. Perform hip flexion and extension (bring the knee up toward the chest, then lower it back flat). Then perform hip abduction and adduction (move the leg out to the side away from the body, then return it toward the midline). Keep the knee slightly bent during abduction to reduce strain. 3 to 5 repetitions of each motion. Some testing programs evaluate hip ROM as a separate skill from knee ROM, so practice both thoroughly.
9. Move to the knee. Continue supporting the leg at the thigh and below the knee. Flex and extend the knee (bend the leg up toward the resident's hip, then straighten it back down). 3 to 5 repetitions.
10. Move to the ankle. Support the leg at the lower shin and the heel. Perform dorsiflexion (pull the top of the foot toward you, so the toes point up), plantar flexion (push the foot away, pointing the toes down), inversion (roll the sole of the foot inward), and eversion (roll the sole outward). 3 to 5 repetitions of each motion.
11. Raise the side rail and move to the other side. Always raise the rail before walking to the opposite side of the bed. Never leave a rail down while you are across the bed. Lower the far side rail and repeat the complete sequence of shoulder, elbow, wrist, knee, and ankle on that side.
12. Reposition the resident and finish. Return the resident to a comfortable position, replace their top sheet or blanket, and raise side rails as appropriate. Lower the bed. Place the call light within reach. Wash your hands. Document that you performed range of motion exercises. Note any joint that seemed tighter than expected, and note whether the resident reported pain at any point.

What the Examiner Looks For

• Joint is supported both above and below throughout every motion
• Movements are slow and smooth, not jerky or fast
• All required joint motions are performed: shoulder, elbow, wrist, hip, knee, and ankle
• Each motion is performed 3 to 5 repetitions
• CNA stops immediately when resident reports pain
• Side rail is raised before moving to the other side of the bed
• Resident is draped throughout and only the working limb is exposed
• Hands are washed at the end
• CNA verbalizes or demonstrates awareness of when to stop (pain response)

Common Mistakes to Avoid

• Supporting the joint at only one point. Gripping just the wrist to move the elbow, or just the ankle to move the knee, puts all the mechanical force at one end of the joint and can cause injury. Always support above and below the joint you are moving.
• Moving too fast. Students who are nervous during the exam sometimes rush through the motions. Fast ROM can cause pain, muscle spasm, or injury. The movement should be slow enough that you would notice the resident tensing up before a problem develops.
• Continuing through pain. A resident saying "that hurts" or tensing visibly is a signal to stop immediately. Never force a joint. Note what happened and report it to the supervising nurse. Forcing a joint through pain is one of the most serious errors you can make on the exam and in clinical practice.
• Skipping joints or motions. Some students skip radial and ulnar deviation at the wrist, or forget inversion and eversion at the ankle, because those motions are less intuitive. Practice the full list until you can move through every joint and every motion without referencing notes.
• Leaving the side rail down when moving to the other side. This is a safety violation. The resident could roll toward the unprotected edge while you are walking around the bed. Raise it every time before you move.
• Performing ROM on only one side. Both sides must be exercised. Doing only the weaker side is a common shortcut in practice that becomes a habit. Train yourself to complete the full sequence on both sides every time.

Printable Practice Checklist

Use this checklist when practicing with a lab partner. Check off each step as you complete it.

1. Washed hands
2. Identified resident and explained procedure
3. Provided privacy and draped resident
4. Positioned resident supine
5. Lowered side rail on working side
6. Shoulder: flexion and extension (3-5 reps)
7. Shoulder: abduction and adduction (3-5 reps)
8. Shoulder: internal and external rotation (3-5 reps)
9. Elbow: flexion and extension (3-5 reps)
10. Elbow: pronation and supination (3-5 reps)
11. Wrist: flexion and extension (3-5 reps)
12. Wrist: radial and ulnar deviation (3-5 reps)
13. Hip: flexion and extension (3-5 reps)
14. Hip: abduction and adduction (3-5 reps)
15. Knee: flexion and extension (3-5 reps)
16. Ankle: dorsiflexion and plantar flexion (3-5 reps)
17. Ankle: inversion and eversion (3-5 reps)
18. Raised side rail before moving to opposite side
19. Repeated all joint motions on opposite side
20. Repositioned resident comfortably
21. Raised side rails, lowered bed, placed call light within reach
22. Washed hands
23. Documented exercises and any noted pain or decreased range

ROM exercises need to feel smooth and controlled, which comes from repetition with a practice partner. Find CNA programs with clinical hours where you can practice these movements under supervision.

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