PDF(Pubmed)
Abstract：
Falls are the leading cause of injury-related deaths among older adults and affect women at disproportionate rates. Dance has been used to improve postural stability, balance confidence and strength of older adults, but in-person classes are often inaccessible. This quasi-experimental pre-mid-post design study investigates whether 12 weeks of online dance classes can improve postural stability, dynamic balance and strength of women aged 65 plus. 16 participants (median=74 years, IQR=6) recruited via convenience sampling completed 12 weeks of twice weekly 75-minute online dance classes. In-person pre, mid and post assessments used 30-second trials of quiet standing, Star Excursion Balance Test, 30-second Sitto-Stand and Calf-Raise-Senior. Significance was evaluated using Friedman\'s test with Wilcoxon Signed-Rank test post-hoc (p≤.05). Participants demonstrated a high attendance rate (median=87.5, IQR=4.2%). Decreased mediolateral sway was observed pre-mid in eyes closed (p=.003, r=.76) and foam (p=.02, r=.60) conditions, where the latter also produced decreased sway area (p=.015, r=.63). Greater dynamic balance was demonstrated when reaching laterally (pre-mid p=.008, r=.68; pre-post p=.008, r=.69) and posterior-laterally (pre-post p=.009, r=.75). Participants significantly improved their number of repetitions on the Calf-Raise Senior (mid-post p=.02, r=.60; prepost p=.015, r=.63). Online dance classes are engaging, accessible and effective in decreasing older women\'s risk of falls and maintaining their independence.
摘要：
跌倒是老年人与伤害有关的死亡的主要原因，对妇女的影响不成比例。舞蹈已被用来提高姿势稳定性，平衡老年人的信心和力量，但是面对面的课程通常是无法访问的。这项准实验性的前中期设计研究调查了12周的在线舞蹈课程是否可以提高姿势稳定性，65岁以上女性的动态平衡和力量。16名参与者(中位数=74岁，IQR=6）通过便利采样招募，完成了12周的每周两次75分钟的在线舞蹈课程。亲自预，中期和后期评估使用30秒的安静站立试验，StarExcursion平衡测试,30秒静坐和小牛饲养高级。使用Friedman\'s检验和WilcoxonSigned-Rank检验后评估显著性(p≤0.05)。参与者表现出很高的出勤率（中位数=87.5，IQR=4.2％）。在闭眼前（p=.003，r=.76）和泡沫（p=.02，r=.60）条件下观察到中外侧摇摆减少，后者也产生了减少的摇摆面积(p=.015，r=.63)。当达到横向(前中期p=.008，r=.68；后p=.008，r=.69)和后横向(后p=.009，r=.75)时，表现出更大的动态平衡。参与者显着提高了他们在小牛饲养高级上的重复次数（中期p=.02，r=.60；预备p=.015，r=.63）。网上舞蹈课很吸引人，可获得和有效地降低老年妇女跌倒的风险并保持她们的独立性。
