Ambegaonkar Jatin P, Hansen-Honeycutt Jena, Wiese Kelley R, Cavanagh Catherine M, Caswell Shane V, Ambegaonkar Shruti J, Martin Joel
Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Manassas, VA 20110, USA.
Department of Dance, George Mason University, Fairfax, VA 22030, USA.
J Funct Morphol Kinesiol. 2023 Jul 17;8(3):98. doi: 10.3390/jfmk8030098.
Dance is physically demanding, requiring physical fitness (PF) that includes upper body, lower body, core fitness, and balance for successful performance. Whether PF changes as dancers advance from when they enter (freshmen) to when they graduate from their collegiate program (seniors) is unclear. We prospectively compared collegiate dancers' freshman-to-senior PF. We recorded PF in regard to upper body strength endurance (push-ups), core strength endurance (front, left-side, right-side, and extensor plank hold times), lower body power (single leg hop-SLH-distances % height; Leg Symmetry Index: LSI = higher/lower × 100, %), and balance (anterior reach balance, % leg length, LL; LSI balance = higher/lower × 100, %) in 23 female collegiate dancers (freshman age = 18.2 ± 0.6 years). Repeated measures ANOVAs ( ≤ 0.05) were used to compare measures from freshman to senior years. Across their collegiate programs, dancers' PF remained unchanged. Specifically, their upper body strength endurance push-up numbers ( = 0.93), their core strength endurance plank times (left: = 0.44, right: = 0.67, front: = 0.60, = 0.22), their SLH distances (left: = 0.44, right: = 0.85), and their symmetry ( = 0.16) stayed similar. Also, dancers' right leg ( = 0.08) and left leg balance ( = 0.06) remained similar, with better balance symmetry ( < 0.001) in seniors. Overall, dancers' PF did not change across their collegiate programs. Thus, female dancers' freshman PF may be an adequate baseline reference measure when devising rehabilitation programs and determining readiness-to-return-to-activity post injury.
舞蹈对身体要求很高,需要具备包括上身、下身、核心体能和平衡能力在内的身体素质(PF)才能成功表演。随着舞者从刚入学(大一新生)到大学毕业(大四学生),身体素质是否会发生变化尚不清楚。我们前瞻性地比较了大学舞蹈生大一到大四的身体素质。我们记录了23名女性大学舞蹈生(大一新生年龄 = 18.2 ± 0.6岁)的身体素质,包括上身力量耐力(俯卧撑)、核心力量耐力(前侧、左侧、右侧和伸展平板支撑时间)、下身力量(单腿跳 - SLH - 距离占身高的百分比;腿对称性指数:LSI = 较高/较低×100%)和平衡能力(前伸平衡,腿长百分比,LL;LSI平衡 = 较高/较低×100%)。采用重复测量方差分析(≤ 0.05)来比较大一到大四的各项测量指标。在整个大学期间,舞者的身体素质保持不变。具体而言,她们的上身力量耐力俯卧撑次数(= 0.93)、核心力量耐力平板支撑时间(左侧:= 0.44,右侧:= 0.67,前侧:= 0.60,= 0.22)、单腿跳距离(左侧:= 0.44,右侧:= 0.85)以及对称性(= 0.16)都保持相似。此外,舞者的右腿(= 0.08)和左腿平衡能力(= 0.06)也保持相似,大四学生的平衡对称性更好(< 0.001)。总体而言,舞者在整个大学期间身体素质没有变化。因此,在制定康复计划和确定受伤后恢复活动的准备情况时,女性舞者的大一身体素质可能是一个合适的基线参考指标。