# A nurse is teaching a 68-year-old client how to properly use a walker. Which instruction should the nurse include to ensure the client's safety? > source: MyMerci (mymerci.kr) > url: https://mymerci.kr/pages/nclex_q.php?qn_id=541027 > language: ko > subject: Adult Health ## 문제 A nurse is teaching a 68-year-old client how to properly use a walker. Which instruction should the nurse include to ensure the client's safety? ## 보기 1. Place the walker as far forward as possible with each step to maximize stride length 2. Lean forward on the walker for support when walking to reduce weight on the legs 3. Move the walker and both feet simultaneously to maintain balance 4. Keep the walker close to the body and step into the walker frame **✔ 정답** **정답: 4** ## 해설 Keeping the walker close to the body and stepping into the frame provides stability and prevents falls. Leaning forward or moving simultaneously can cause imbalance, while placing it far forward reduces control. ## 심화 해설 Correct Answer Explanation The correct instruction is to keep the walker close to the body and step into the walker frame. This technique ensures that the walker provides a stable base of support without causing the user to lean dangerously forward or lose balance. When the walker is kept close, the user's center of gravity remains within the boundaries of the support base created by the walker's legs and the user's own feet, which is a fundamental principle of safe mobility. In-Depth Pathophysiology and Clinical Rationale The primary safety concern with walker use in older adults is the risk of falls due to postural instability. The instruction to keep the walker close directly addresses the biomechanical challenge of maintaining the center of mass (COM) within the base of support (BOS). Research on walker-assisted gait in the elderly demonstrates that using a walker fundamentally alters spatiotemporal and kinematic parameters [1]. A key adaptation is a more conservative gait pattern; the study found that walker use leads to a reduced stride length and velocity as the user prioritizes stability over speed [1]. Placing the walker too far forward, as suggested in option 1, would disrupt this adaptive pattern by forcing the user to extend their arms and lean their trunk forward, shifting the COM dangerously close to the anterior edge of the BOS and increasing the risk of a forward fall. Leaning forward on the walker for support, as described in option 2, is a critical error. This posture transforms the walker from a balance aid into a crutch that encourages a flexed, unstable posture. The qualitative study on smart rollators highlights that the primary goal of such assistive devices is to enhance safety and support during locomotion, not to bear full body weight in a forward-leaning manner [2]. A forward lean places excessive strain on the shoulders and wrists and, more importantly, creates a forward momentum that the user's legs may not be able to control, leading to a "chasing the walker" scenario that frequently results in falls. Moving the walker and both feet simultaneously, as in option 3, eliminates the alternating, reciprocal pattern that is crucial for dynamic stability. The correct gait pattern with a standard walker is a sequential three-point gait: first, the walker is lifted or pushed forward a short distance; second, the weaker or injured leg is stepped into the frame; and third, the stronger leg is stepped forward to meet it. This sequence ensures that the walker is always a stationary, stable support when the user is stepping. The principal component analysis of walker-assisted gait confirms that the device fundamentally changes the coordination between upper and lower limbs, promoting a more deliberate, step-by-step pattern to maintain equilibrium [1]. A simultaneous movement would create a moment where both the walker and the user's feet are in motion, removing all stable points of contact with the ground and maximizing fall risk. Why the Other Options Are Incorrect - Option 1: Placing the walker far forward overextends the arms and shifts the COM anteriorly beyond a safe BOS. The adaptive gait pattern with a walker is characterized by a shorter, not longer, stride length to enhance stability [1]. - Option 2: Leaning on the walker promotes a hazardous flexed posture and forward momentum. The device is intended to enhance stability and support, not to be used as a weight-bearing crutch that compromises postural control [2]. - Option 3: Moving the walker and feet simultaneously creates a period of instability with no fixed support. Safe walker use requires a sequential pattern where the walker is stationary during each stepping phase, a coordination pattern distinctly different from unassisted gait [1]. NCLEX-RN Clinical Application When teaching a client to use a walker, the nurse must assess for the common mistake of "walking behind" the walker with arms fully extended. The correct cue is to tell the client to "step into the walker" so that the back legs of the walker are even with their heels when they are standing within the frame. This position ensures the walker encircles the body, providing lateral and anterior support. The nurse should observe the client's posture, ensuring the elbows are flexed at a comfortable 15-30 degree angle when holding the grips, which naturally keeps the walker close and prevents a forward lean. This approach directly applies the biomechanical principle of maintaining the COM securely within the BOS, a strategy supported by evidence on how older adults adapt their gait to walker-assisted locomotion to prevent falls [1].References (research sources) - [1]Gait adaptations to walker-assisted locomotion in elderly: a principal component analysis of spatiotemporal and kinematic parameters.Research articleElias A, Loureiro M, Machado F, Frizera A. (2026) · DOI: 10.1038/s41598-026-37448-4 - [2]Promotion and preservation of mobility and autonomy in old age through smart rollators-a qualitative study.Research articleSchwaiger P, Müller J, Obert M, Twieg S, Butkov A, Steinmann U, Paulicke D, Jahn P. (2026) · DOI: 10.3389/fdgth.2026.1783585 ## 임상 시나리오 Safe Walker Use in Older AdultsPreventing Falls Through Proper Body Mechanics Instruct the client to keep the walker close to the body and step into the walker frame, not walk behind it. This maintains the center of mass (COM) within the base of support (BOS) created by the walker's legs and the user's feet. The correct sequence is: 1) Lift and move the walker forward about one arm's length. 2) Step the weaker leg into the walker frame first. 3) Then step the stronger leg forward to meet the weaker leg. Avoid pushing the walker too far ahead. CautionLeaning forward on the walker or placing it too far ahead shifts the COM dangerously forward, risking a forward fall. Always ensure the walker's legs are in contact with the ground and the client maintains an upright posture. ## 핵심 개념 - **Base of Support (BOS)** — The area beneath an object or person that includes every point of contact with the supporting surface; a wider, closer BOS increases stability. - **Center of Mass (COM)** — A point representing the mean position of the matter in a body; balance is maintained when the COM is kept within the BOS. - **Postural Instability** — A lack of balance or unsteadiness, often due to impaired sensorimotor integration, significantly increasing the risk of falls in older adults. ## 같은 주제 문제 - [A nurse is teaching a client how to properly use a walker. Which instruction should the nu…](https://mymerci.kr/pages/nclex_q.php?qn_id=541023) - [A nurse is teaching a 65-year-old client with osteoarthritis who has been prescribed a wal…](https://mymerci.kr/pages/nclex_q.php?qn_id=541024) - [A nurse is teaching a client how to properly use a walker. 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