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Journal of Dance Medicine & Science

Tina J Wang, Corneliu Vlad Costin
We present the case of a modern dancer at the university level with left knee pain as a result of Hoffa's disease. A comprehensive literature review of Hoffa's disease indicates that it may be an under-recognized condition. Predisposing factors in dance training include torsion and hyperextension at the knee, particularly in conjunction with pelvic instability and weakness. Clinicians should be cognizant of this differential diagnosis when evaluating dancers with knee pain. We present a detailed progressive rehabilitation protocol including transitional interventions for Hoffa's disease in the dancer...
September 15, 2018: Journal of Dance Medicine & Science
Camila D Lima, Lee E Brown, Cassio V Ruas, David G Behm
Stretching, while enhancing joint flexibility, may also decrease the hamstring:quadriceps (H:Q) strength ratio, which is used to identify knee strength imbalances and lower extremity muscle and ligament injury risk in the practice of sports and other physical activities. Stretching may also decrease muscle force and jump performance. However, these effects may depend on the population in question and mode of stretching. The purpose of this study was to compare the effects of static stretching (SS) and ballistic stretching (BS) on concentric H:Q ratio, squat jump (SJ) and countermovement jump (CMJ) height, and SJ:CMJ ratio between ballet dancers and resistance trained women...
September 15, 2018: Journal of Dance Medicine & Science
Twinkle Xinling Chua, John Sproule, Wendy Timmons
Extant attentional focus research has largely examined movement tasks that are outcome-focused (e.g., height of jumps, force production, and number of successful turns) with fewer studies of the movement quality or form of an aesthetic discipline (e.g., dance, gymnastics, and ice-skating). In this study, both movement form and outcomebased measures were used to assess the performance of a pirouette. Thirteen skilled dancers performed pirouettes on a force plate under three trial conditions: control (no focus instruction), external focus instruction, and internal focus instruction...
September 15, 2018: Journal of Dance Medicine & Science
Ross Armstrong, Christopher Michael Brogden, Debbie Milner, Debbie Norris, Matt Greig
Dance is associated with a high risk of injury and fatigue is often a contributing factor. The Star Excursion Balance Test (SEBT) has been used to identify alterations in normal movement that may contribute to injury risk; however, there has been limited investigation of the potential effects of fatigue. The aim of this study was to explore the influence of dance-specific fatigue on SEBT performance, with implications for injury and performance in dance. Thirty-five university dancers completed the modified SEBT in anterior, posterolateral, and posteromedial directions prior to and immediately following the Dance Aerobic Fitness Test (DAFT)...
September 15, 2018: Journal of Dance Medicine & Science
Fabio S Lira, Fabírcio E Rossi, Erick P de Oliveira, Ana C B Marini, João F Mota, Gustavo D Pimentel
This study sought to investigate the effect of oral caffeine supplementation on sweat rate and blood pressure in ballet dancers. A double-blind study with placebo control was conducted with nine professional ballet dancers (average age: 28.5 ± 8.8 years). Oral caffeine supplementation (400 mg per dancer, 6.3 mg/kg, range: 4.9 to 8.6 mg/kg) was ingested one hour before a ballet session that was 5 hours in length. After 3 days a second 5-hour session was performed prior to which a placebo was given to the participants...
September 15, 2018: Journal of Dance Medicine & Science
Claire Gross, Monica Rho, Daniel Aguilar, Maria Reese
Hip problems are common in ballet dancers, and it is likely that dancers' perceived quality of life is impaired by their presence. There are no instruments to detect functional impairments related to hip injuries in young, athletic populations. The aim of this study was to evaluate the impact of hip related problems on the quality of life in professional ballet dancers. Thirty-seven professional ballet dancers, ages 18 to 33, completed a post-hire health screening prior to the start of their company's season...
September 15, 2018: Journal of Dance Medicine & Science
Kaanda Nabilla Souza Gontijo, Claudia Tarragô Candotti, Maiane Almeida do Amaral, Gabriela Cristina Dos Santos, Valerie Williams, Jefferson Fagundes Loss
The MADAAMI (Método de Avaliação Dinâmica do Alinhamento Articular dos Membros Inferiores-Dynamic Evaluation Method of Lower Limb Joint Alignment) is an instrument that has been developed and validated with the aim of providing direct, simple, and practical support for the identification of compensations and misalignments of joints. The first version of the instrument had some limitations. The goals of the present study are to update the instrument (MADAAMI-II), evaluate its content validity, and verify inter-rater and intra-rater reproducibility during the execution of demi-plié, grand plié, and fondu in two turnout positions of classical ballet (120° and self-reported) and in parallel foot position...
September 15, 2018: Journal of Dance Medicine & Science
Chris Michael Brogden, Ross Armstrong, Richard Page, Debbie Milner, Debbie Norris, Matt Greig
Injury incidence in dance is high, in large part due to the frequency of repetitive and complex movements that require the lower limb to absorb and utilize extreme forces. The aim of this study was to quantify the biomechanical demands of the Dance Aerobic Fitness Test (DAFT) via triaxial accelerometry and utilize it to compare loading at the cervical spine and distal aspect of the lower limb. University dancers (N = 26; age: 20.0 ± 1.5 years; height: 1.61 ± 0.08 m; body mass: 58.40 ± 6.20 kg) completed two trials (one familiarization and one experimental) of the DAFT, consisting of five incremental levels of dance performance...
September 15, 2018: Journal of Dance Medicine & Science
Paula Thomson, S Victoria Jaque
The combination of shame, anxiety, and a history of childhood maltreatment can have devastating effects on self-esteem and on the morbidity and mortality of an individual. Shame is a natural emotion evoked in social evaluative settings. Without some degree of shame, goal attainment is less likely. However, high levels of shame may increase pathology and decrease performance. In this crosssectional study, pre-professional and professional dancers were divided into two shame groupings: low (N = 193) and high (N = 25)...
June 15, 2018: Journal of Dance Medicine & Science
Roisin Cahalan, Norma Bargary, Kieran O'Sullivan
Dance is an extremely popular activity among adolescents and has a range of associated physical and psychological health benefits. However, pain and injury in young elite dancers is pervasive, and the underlying risk factors are poorly understood. This study investigated the incidence of pain and injury in elite adolescent Irish dancers and examined a range of potentially associated biopsychosocial risk factors. Thirty-seven championship level Irish dancers completed baseline questionnaires recording any episode of pain or injury over the previous 12 months...
June 15, 2018: Journal of Dance Medicine & Science
Hunter D Perala, Margaret A Wilson, Boyi Dai
Footwear in dance has been studied for support and cushioning, but little research has been conducted on free moments, which may result from high frictional coefficients. Conversely, insufficient friction between shoes and floors may increase the risk of falls and compromise dance performance. The purpose of this study was to examine the effect of different types of footwear with different coefficients of friction on peak and average free moments during a rotational movement in country swing dance. Fifteen country swing dancers completed a rotational movement under four footwear conditions: barefoot, rubber-bottom boots, leather-bottom boots, and running shoes...
June 15, 2018: Journal of Dance Medicine & Science
Susan Kinney, Tara McCrystal, Michael Owen, Andrea Stracciolini, William P Meehan Iii
In studies of major dance companies that employ mostly adult dancers, measuring the effect of comprehensive medical management that includes daily on-site physical therapy has shown a decrease in the incidence of dance injuries, days missed from dance, injury-related costs, and Workers Compensation claims. As no comparable data have been collected with regard to youth and adolescent dancers, we sought to assess the effect of physical therapist involvement in the care of injuries sustained by young dancers on the incidence and amount of time missed from dancing...
June 15, 2018: Journal of Dance Medicine & Science
Jatin P Ambegaonkar, Shane V Caswell, Nelson Cortes
Dancers, similar to other athletes, often perform vertical and horizontal jumps. Lower extremity (LE) work, power, and balance are important in performing these movements. However, whether these qualities are inter-related in dancers remains unclear. Our purposes were to examine if 1. LE horizontal work, vertical power, and balance were inter-related, and 2. LE horizontal work and vertical power would predict balance in female collegiate dancers. Sixty-one collegiate female dancers (18.3 ± 0.7 years; 164.7 ± 7...
June 15, 2018: Journal of Dance Medicine & Science
Shruti Prabhakaran Nair, Shruti Kotian, Claire Hiller, Rajani Mullerpatan
Classical Indian dance has earned recognition across the globe; however, the health of dancers who are carrying forth this heritage has not received due attention. Therefore, this study aimed to explore musculoskeletal pain and injury prevailing among Indian dancers in Mumbai and Mangalore. A secondary aim was to compare pain tolerance levels between dancers and non-dancers. Fifty-one dancers trained in different traditional Indian and Western dance forms and 164 recreational dancers were recruited as participants...
June 15, 2018: Journal of Dance Medicine & Science
Sarah J Kenny, Luz Palacios-Derflingher, Oluwatoyosi B A Owoeye, Jackie L Whittaker, Carolyn A Emery
Critical appraisal of research investigating risk factors for musculoskeletal injury in dancers suggests high quality reliability studies are lacking. The purpose of this study was to determine between-day reliability of pre-participation screening (PPS) components in pre-professional ballet and contemporary dancers. Thirty-eight dancers (35 female, 3 male; median age; 18 years; range: 11 to 30 years) participated. Screening components (Athletic Coping Skills Inventory-28, body mass index, percent total body fat, total bone mineral density, Foot Posture Index-6, hip and ankle range of motion, three lumbopelvic control tasks, unipedal dynamic balance, and the Y-Balance Test) were conducted one week apart...
March 15, 2018: Journal of Dance Medicine & Science
Derrick D Brown
Vegetarianism provides a catchall term for a variety of diets that exclude the consumption of some or all animal products. Contrary to popular claims, appropriately designed and managed vegetarian diets contain foods nutritionally sufficient for health, well-being, and physical performance. Vegetarian dancers can meet their protein needs from primarily or exclusively (vegan) plant-based sources when a variety of these foods are consumed daily and energy intake is adequate. However, the quality and timing of dietary intake is of key importance to meet the physical demands typical of high intensity, intermittent types of dance styles...
March 15, 2018: Journal of Dance Medicine & Science
Amit Abraham, Ayelet Dunsky, Madeleine E Hackney, Ruth Dickstein
Elevé is a fundamental dance movement practiced routinely by dance students and serving as an integral component of screening in dance. It consists of ankle plantar flexion (PF) movement and is considered to be a frequent cause of foot and ankle injuries among dancers, with adolescent female dance students being at greatest risk for such injuries. Therefore, gaining additional knowledge regarding elevé functional range of motion (ROM) and inter-leg weightbearing distribution (WBD) properties among adolescent dance students is warranted for pedagogic, screening, injury prevention, and rehabilitation purposes...
March 15, 2018: Journal of Dance Medicine & Science
A B M Boni Rietveld, F M T Hagemans, S Haitjema, T Vissers, R G H H Nelissen
Dancing on pointe and relevé requires extreme plantar flexion of the talo-crural joint. Hence, these positions may lead to posterior ankle impingement syndrome (PAIS). PAIS often coincides with flexor hallucis longus tendinopathy (FHL tendinopathy, or "dancers' tendinitis"). Both injuries can appear in isolation as well. The goal of this review is to evaluate the results and the available levels of evidence of conservative and operative treatment (both open and endoscopic) of PAIS and FHL tendinopathy in dancers...
March 15, 2018: Journal of Dance Medicine & Science
A B M Boni Rietveld, F M T Hagemans
Posterior ankle impingement syndrome (PAIS) is a painful, usually limited plantar flexion of the ankle joint due to soft tissue impingement or a bony impediment often coinciding with tendinopathy of the flexor hallucis longus (FHL) behind the medial malleolus. In persistent complaints, the bony impediment is removed, the tunnel of the FHL tendon is released, or a combination of both procedures has traditionally been performed by open surgery. In 2000, an endoscopic surgical technique for PAIS and FHL tendinopathy was introduced...
March 15, 2018: Journal of Dance Medicine & Science
A B M Boni Rietveld, S Haitjema
Posterior ankle impingement syndrome (PAIS), the result of posterolateral soft tissue or bony impingement of the ankle, and tendinopathy of the flexor hallucis longus (FHL tendinopathy) in the ankle are common in dancers. If conservative treatment of these conditions fails to produce adequate results, surgical intervention might be necessary. However, outcomes of treatment by open surgery for these diagnoses have been described only in small series of dancers. For this study, data were extracted from clinical files and operative reports of an orthopaedic surgery clinic specialized in dance medicine...
March 15, 2018: Journal of Dance Medicine & Science
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