— 健康促進與維護 · MEDIUM · MCQ —
護理師為一群高齡居民規劃健康促進活動。下列哪項活動對預防骨質疏鬆最有效？
A nurse is planning health promotion for a group of elderly residents. Which activity is most effective for preventing osteoporosis?
- ASwimming daily每天游泳
- BBrisk walking for 30 minutes 5 days a week✓ 正解每週 5 天快走 30 分鐘
- CStretching exercises every morning每天早上做伸展運動
- DYoga sessions twice a week每週兩次瑜伽課程
— Explanation · 中文詳解 —
骨質疏鬆的預防仰賴「負重運動」（Weight-bearing exercise）。步行能透過地心引力給予骨骼壓力，刺激骨細胞生長。游泳雖對關節友善，但缺乏負重效果，無法有效提升骨密度。伸展與瑜伽雖有助平衡，但對骨質增生的直接效益不如負重運動。
Brisk walking is the most effective activity because it is a weight-bearing exercise that applies stress to bones, stimulating osteoblasts and improving bone density. Non-weight-bearing activities like swimming or stretching do not provide the necessary mechanical load to prevent osteoporosis.
✦ 台美臨床差異
美國社區中心常舉辦健走社團；台灣社區據點多推廣太極拳或肌力訓練，皆屬良好策略。