Similar prevalence of acetabular labral tear in professional ballet dancers and sporting participants

OBJECTIVE: To compare the prevalence of acetabular labral tear in male and female professional ballet dancers with age-matched and sex-matched sporting participants and to determine the relationship to clinical findings and cartilage defects. DESIGN: Case-control study. SETTING: Clinical and radiology practices. PARTICIPANTS: Forty-nine (98 hips) male and female professional ballet dancers (current and retired) with median age 30 years (range: 19-64 years) and 49 (98 hips) age-matched and sex-matched sporting participants. INDEPENDENT VARIABLES: Group (ballet or sports), sex, age, hip cartilage defects, history of hip pain, Hip and Groin Outcome Score, passive hip internal rotation (IR), and external rotation range of movement (ROM). MAIN OUTCOME MEASURES: Labral tear identified with 3T magnetic resonance imaging (MRI). RESULTS: Labral tears were identified in 51% of all 196 hips. The prevalence did not differ significantly between the ballet and sporting participants (P = 0.41) or between sexes (P = 0.34). Labral tear was not significantly associated with clinical measures, such as pain and function scores or rotation ROM (P > 0.01 for all). Pain provocation test using IR at 90° of hip flexion had excellent specificity [96%, 95% confidence intervals (CIs), 0.77%-0.998%] but poor sensitivity (50%, 95% CI, 0.26%-0.74%) for identifying labral tear in participants reporting hip pain. Older age and cartilage defect presence were independently associated with an increased risk of labral tear (both P < 0.001). CONCLUSIONS: The prevalence of labral tear in male and female professional ballet dancers was similar to a sporting population. Labral tears were not associated with clinical findings but were related to cartilage defects, independent of aging. CLINICAL RELEVANCE: Caution is required when interpreting MRI findings as labral tear may not be the source of the ballet dancer's symptoms.

Nederlands Dans Theater review: Dancers' stunning performances pack huge emotional impact

Nederlands Dans Theater​ is one of the most famous dance companies in the world, with a repertoire that has had a far-reaching impact. The works of its previous artistic director, Jirí Kylian​, have been staged by companies across the world, including the Australian Ballet.

Kai Tai Chan

Analyses the work of choreographer and director Kai Tai Chan whose different pathway through dance and theatre opens up discourses about the nature of non-ballet concert dance in Australia. Orthodox paradigms of training and performance making are interrogated and a greater understanding of the relative nature of those practices is established by analysing the competing ideologies, philosophical frameworks and aesthetic understandings of these practitioners.

Structured self-reflection as a tool to enhance perceived performance and maintain effort in adult recreational salsa dancers

The purpose of this study was to determine if the use of structured self-reflection in community dance classes would influence achievement goal orientations, levels of intrinsic motivation, or perceived dance performance. The Task and Ego Orientation in Sport Questionnaire (TEOSQ) and the Intrinsic Motivation Inventory (IMI) were modified slightly to reflect involvement in salsa dancing rather than sport and then were administered to 139 Latin dance students at the beginning and end of an 11-week term. The dance classes were divided into control and intervention groups, balanced in terms of sample size and level of instruction. The intervention group completed a salsa self-reflection form during or after class for 9 weeks. At the posttest all students rated their salsa performance and the intervention group evaluated the self-reflection process. Results indicate that although achievement goal orientations were not affected, structured sell-reflection is perceived to be a positive tool and may be a useful technique to enhance perceived performance and maintain effort and perceived importance. The participants' perceptions of the self-reflection process were positive, with no negative effects of engaging in the process reported.