Unverified75% confidenceTradeoffTime unknown
管径越粗承重越强但抓握越费力：老人和手小者难握持50mm以上粗管，助力扶手管径以30-35mm抓握最舒适，过粗反而握不牢
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75%
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Long-term
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Unverified扶手管径以32-35mm为宜，握感稳且承力好；管径过细（＜25mm）握持吃力，过粗（＞40mm）手小者握不牢，握把处带防滑软胶包覆可减少湿手打滑84% similarUnverified多根阻力管可通过卡扣叠加使用，阻力可达百磅级别，但叠加越多管体越粗，握持和动作流畅度会下降81% similarUnverified扶手握管直径在25-32mm时抓握最省力舒适，管径过粗手掌握不拢、过细抓握时压强大易滑脱，表面带防滑发泡或磨砂包层优于光面金属80% similarUnverified扶手越粗越结实抗弯，但握感和便携性下降；老人日常辅助起身选中等管径+双层结构即可，追求最大承重的重型款反而笨重难挪动78% similarUnverified绳梯式起身绳的档位间距20-25cm最合理，间距>30cm老人手够不到下一档会中途卡住，间距<15cm则档位过多容易缠绕78% similar
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