Intermittent vibrational stimulation enhances mobility during stair navigation in patients with knee pain

•Potential of intermittent vibration stimulus to reduce stair navigation limitations.•Clinical trial tests ambulatory vibration stimulus during stair ascent and descent.•Intervention enhances stair ascent quadriceps function and stair descent control.•Ambulatory knee pain mitigated via vibrational stimulus during ascent and descent.•Intervention enhances mobility during stair navigation in patients with knee pain.