■舞者自我报告了脊柱伸展运动与下背痛(LBP)之间的联系。研究人员尚未报告芭蕾舞中脊柱运动的总数或频率,现代,或嘻哈舞蹈课或表演。这项研究的目的是报告在不同舞蹈环境中暴露于脊柱运动舞者的数量。
■我们分析了YouTube.com上的65个舞蹈视频,以了解7种舞蹈环境中的舞蹈动作:芭蕾舞课和表演,现代课和表演,和嘻哈突破,密码(大组),和战斗(“1v1s”)。两名审阅者记录了脊柱的计数(脊柱屈曲,扩展,侧屈,和旋转),冲击(跳跃,飞跃,andfalls),和合作运动(升降机,渔获物,和倾斜)。数据分析在Jamovi(Jamovi项目,悉尼,澳大利亚)。我们报告了运动总数,百分比,频率,范围,具有标准偏差(SD)的平均值,和具有四分位数范围(IQR)的中位数。我们使用Mann-WhitneyU检验计算了显著差异。
■视频长度范围为3至141分钟(平均值±SD:38.4±38.3,范围:138)。不同类型的脊柱平均伸展运动范围为每分钟2±0.8至7±9.6。现代舞课有最多的脊柱屈曲(89±53.6),旋转(60±40.8),和侧屈(74±20.7)运动。芭蕾舞表演的脊柱伸展运动最多(77±69.8),跳跃(74±48),跃升(19±18.2)。嘻哈骨折的跌倒次数最多(2±2.3)。合作运动只出现在芭蕾舞表演中,现代舞表演,和嘻哈打破环境。
■增加LBP的动作经常发生在所有3种舞蹈类型中。舞者可以期望频繁接触脊柱伸展运动;因此,我们建议所有舞者加强背部和核心肌肉组织。我们建议芭蕾舞演员也加强他们的下肢肌肉。对于现代舞者来说,我们建议加强他们的倾斜。对于嘻哈舞者来说,我们建议增加肌肉力量和肌肉耐力。
UNASSIGNED: Dancers have self-reported a link between spinal extension movements and low back pain (LBP). Researchers have not reported the total number or frequency that spinal movements occur in ballet, modern, or hip-hop dance classes or performances. The purpose of this study was to report the number of spinal movements dancers are exposed to in different dance environments.
UNASSIGNED: We analyzed 65 dance videos on YouTube.com for dance movements within 7 dance environments: ballet class and performance, modern class and performance, and hip-hop breaking, ciphers (large groups), and battles (\"1v1s\"). Two reviewers recorded counts of spinal (spinal flexion, extension, lateral flexion, and rotation), impact (jumps, leaps, and falls), and partnering movements (lifts, catches, and leans). Data analyses were processed in Jamovi (the jamovi project, Sydney, Australia). We reported movement totals, percentages, frequency, ranges, means with standard deviations (SD), and medians with interquartile range (IQR). We calculated significant differences using Mann-Whitney U tests.
UNASSIGNED: Video length ranged from 3 to 141 minutes (mean ± SD: 38.4 ± 38.3, range: 138). the average spinal extension movements ranged from 2 ± 0.8 to 7 ± 9.6 movements per minute across genres. Modern dance class had the most spinal flexion (89 ± 53.6), rotation (60 ± 40.8), and lateral flexion (74 ± 20.7) movements. Ballet performance had the most spinal extension movements (77 ± 69.8), jumps (74 ± 48), and leaps (19 ± 18.2). Hip-hop breaking had the highest number of falling movements (2 ± 2.3). Partnering movements were only present in ballet performance, modern dance performance, and hip-hop breaking environments.
UNASSIGNED: Movements that increase LBP occur often in all 3 dance genres. Dancers can expect frequent exposure to spinal extension movements; therefore, we recommend strengthening back and core musculature for all
dancers. We recommend that ballet
dancers also strengthen their lower extremity muscles. For modern
dancers, we recommend strengthening their obliques. For hip-hop
dancers, we recommend increasing muscular power and muscular endurance.