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Ballet dance

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https://www.readbyqxmd.com/read/29147730/on-the-skilled-plantar-flexor-motor-action-and-unique-electromyographic-activity-of-ballet-dancers
#1
Sakiko Saito, Hiroki Obata, Mayumi Kuno-Mizumura, Kimitaka Nakazawa
The study aimed to compare the ability of dance and non-dance subjects to perform fine control of a simple heel-raising/lowering movement, and to determine if there are any differences in motor unit activity in the primary plantar flexor muscles during the movement. Subjects were instructed to accurately track a sinusoidal trace with a heel-raising and lowering movement at four controlled frequencies (1, 0.5, 0.25, and 0.125 Hz). The ankle joint angle was used to characterize movement errors from the target...
November 16, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29112056/effects-of-a-resistance-training-intervention-on-strength-power-and-performance-in-adolescent-dancers
#2
Rebecca A Dowse, Mike R McGuigan, Craig Harrison
Dowse, RA, McGuigan, MR, and Harrison, C. Effects of a resistance training intervention on strength, power, and performance in adolescent dancers. J Strength Cond Res XX(X): 000-000, 2017-The aim of this study was to determine whether a 9-week resistance training program could have a significant effect on maximum lower-body strength and power, dynamic balance, and dance performance in adolescent dancers. Twelve competitive adolescent female dancers trained in jazz, ballet, and contemporary were recruited from local dance schools and assigned to a resistance training group (dance experience 9...
November 1, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29106340/on-synchronicity-passing-the-torch-and-the-task-of-prevention
#3
Niva Piran
The 15-year follow-up study (Bar, Chassin & Dionne, 2017) suggests of the Dance School Ecological Prevention Program (Piran, 1999) that it may have had long-term effects on the prevention of bulimia. This pattern of findings is in line with the results of the older cohort in the original outcome evaluation study. If the results of the follow up study hold when the 15-year outcome evaluation study is compared to a control group from a similarly competitive ballet school, this would reinforce the cause of prevention in the field of sports and dance, if not beyond...
October 2017: Eating Disorders
https://www.readbyqxmd.com/read/29064868/association-between-previous-injury-and-risk-factors-for-future-injury-in-preprofessional-ballet-and-contemporary-dancers
#4
Sarah J Kenny, Luz Palacios-Derflingher, Qian Shi, Jackie L Whittaker, Carolyn A Emery
OBJECTIVES: To determine the prevalence of self-reported 1-year injury history and examine its association with preparticipation evaluation components aimed at predicting future injury risk (PPE-IP) among preprofessional ballet and contemporary dancers. DESIGN: Cross-sectional study. SETTING: Preprofessional ballet school, university contemporary dance program. PARTICIPANTS: Full-time preprofessional ballet and contemporary dancers...
October 20, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28988267/leg-length-in-relation-to-selected-ballet-performance-indicators
#5
C C Karpodini, M A Wyon, N Comoutos, Y Koutedakis
It is unclear whether the modern ballet body stereotype of long limbs is advantageous in dance performance. Therefore, we investigated the relationship between leg-length and selected dance movements representative of power, dexterity, and range of motion in ballet dancers at different competence levels. METHODS: The total of 10 recreational, 24 vocational, and 10 professional ballerinas volunteered. They were subjected to: a) lower limb-length measurements, b) power tests (vertical jump-sautés and unilateral countermovement jump-temps levé), c) dexterity tests (tendus and double battement frappes), and d) flexibility tests (lateral active and passive-développé à la seconde)...
September 2017: Medical Problems of Performing Artists
https://www.readbyqxmd.com/read/28988265/overuse-injuries-in-professional-anatolian-folk-dancers-a-descriptive-study-verified-with-mri
#6
Neslihan Aksu, Vefa Atansay, Taner Aksu, Şukriye Damla Kara, Safiye Koçulu, Işık Karalök
BACKGROUND: Professional dancers are artists as well as athletes who push their bodies beyond limits for aesthetic expression. Therefore, overuse injuries are common. We present our findings on overuse injuries in Anatolian (Turkish) folk dancers. METHODS: The Fire of Anatolia dance group comprises of 82 dancers (37 male, 45 female) with a mean age of 27.96±5.05 yrs (range 18 to 38). Forty-one dancers from this group presented to our clinic between February 2009 and April 2016 with complaints of pain, and 25 of them had magnetic resonance imaging (MRI) for verification...
September 2017: Medical Problems of Performing Artists
https://www.readbyqxmd.com/read/28880595/lower-leg-and-foot-contributions-to-turnout-in-university-level-female-ballet-dancersa-preliminary-investigation
#7
Sarah L Carter, Alan R Bryant, Luke S Hopper
BACKGROUND: Turnout in ballet is produced through summation of the joint structure characteristics and ranges of motion at the hip, knee, ankle, and foot. Contributions of the hip joint to functional turnout in dancers have received extensive examination, whereas little is known about contributions from the knee, ankle, and foot. The aim of this study was to explore the nonhip components of turnout to dancers' functional turnout in first position by assessing passive external tibiofemoral rotation and active measures of foot pronation, ie, navicular drop and Foot Posture Index...
July 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28871903/perfectionism-burnout-and-motivation-in-dance-a-replication-and-test-of-the-2%C3%A3-2-model-of-perfectionism
#8
Sanna M Nordin-Bates, Thomas D Raedeke, Daniel J Madigan
The relationships between multidimensional perfectionism, burnout, and motivation were examined. In so doing, this study aimed to replicate and extend the study by Cumming and Duda (2012). Ninety-one ballet dancers completed questionnaires assessing the target constructs. Using cluster analysis, four profiles emerged that replicated Cumming and Duda's findings and generally supported Gaudrau and Thompson's 2x2 model of perfectionism. As such, these profiles represented pure personal standards perfectionism, mixed perfectionism, pure evaluative concerns perfectionism, and non-perfectionism...
September 15, 2017: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/28783444/hip-and-groin-injuries-in-dancers-a-systematic-review
#9
REVIEW
Natasha Trentacosta, Dai Sugimoto, Lyle J Micheli
CONTEXT: Injury data on hip and groin injuries vary, and these injuries are often misrepresented or overlooked for more commonly seen injuries, such as those to the foot and ankle. OBJECTIVE: To provide a systematic review of the injury rates of hip and groin pathology in dancers and look to establish a better understanding of the occurrence of hip and groin injuries in the dancer population. DATA SOURCES: A literature search was performed using PubMed and CINAHL databases for articles published between 2000 and 2016...
September 2017: Sports Health
https://www.readbyqxmd.com/read/28730921/kinematic-repeatability-of-a-multi-segment-foot-model-for-dance
#10
Sarah L Carter, Nahoko Sato, Luke S Hopper
The purpose of this study was to determine the intra and inter-assessor repeatability of a modified Rizzoli Foot Model for analysing the foot kinematics of ballet dancers. Six university-level ballet dancers performed the movements; parallel stance, turnout plié, turnout stance, turnout rise and flex-point-flex. The three-dimensional (3D) position of individual reflective markers and marker triads was used to model the movement of the dancers' tibia, entire foot, hindfoot, midfoot, forefoot and hallux. Intra and inter-assessor reliability demonstrated excellent (ICC ≥ 0...
July 21, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28696896/assessment-of-dna-damage-in-a-group-of-professional-dancers-during-a-10-month-dancing-season
#11
Filipa Esteves, Eduardo Teixeira, Tânia Amorim, Carla Costa, Cristiana Pereira, Sónia Fraga, Vanessa Moraes De Andrade, João Paulo Teixeira, Solange Costa
Despite the numerous health benefits of physical activity, some studies reported that increased intensity and duration may induce oxidative stress in several cellular components including DNA. The aim of this study was to assess the level of basal DNA damage as well as oxidative DNA damage in a group of professional dancers before and after a 10-month dancing season. A group of individuals from general population was also assessed as a control. The alkaline version of the comet assay was the method selected to measure both basal DNA damage and oxidative stress, since this method quantifies both endpoints...
2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28599012/influence-of-textured-insoles-on-dynamic-postural-balance-of-young-dancers
#12
Nili Steinberg, Oren Tirosh, Roger Adams, Janet Karin, Gordon Waddington
BACKGROUND: Postural balance (PB) is a significant factor in dance performance and injury prevention. We aimed to determine whether the use of textured insoles inserted into casual walking shoes of dancers improved their dynamic PB and whether dancers with previous injury manifested different dynamic PB compared with non-injured dancers. METHODS: In this crossover design study, 26 ballet dancers from the Australian Ballet School, aged 14-19 yrs, were divided into two groups matched by sex and class levels...
June 2017: Medical Problems of Performing Artists
https://www.readbyqxmd.com/read/28596798/work-related-floors-as-injury-hazards-a-nationwide-pilot-project-analyzing-floors-in-theatres-and-education-establishments-in-germany
#13
Eileen M Wanke, Mike Schmidt, Doris Klingelhöfer, Jeremy Leslie-Spinks, Daniela Ohlendorf, David A Groneberg
BACKGROUND: An adequate dance floor is said to prevent injuries. On the basis of scientific research, numerous recommendations regarding an adequate dance floor have been developed. Up to the present, however, studies have still been lacking into how far these recommendations have already been implemented in theatres with regular dance productions and/or in-house dance ensembles. The aim of this study is to analyze a nationwide survey on dance floors of theatres and education establishments in Germany...
2017: Journal of Occupational Medicine and Toxicology
https://www.readbyqxmd.com/read/28535850/eyes-closed-single-limb-balance-is-not-related-to-hypermobility-status-in-dancers
#14
Tiffany A Marulli, Lindsay E Harmon-Matthews, J Hope Davis-Coen, Nienke W Willigenburg, Timothy E Hewett
Hypermobility may be associated with decreased lower extremity proprioception, which in turn may increase injury risk. The prevalence of hypermobility in dancers varies across studies, but joint hypermobility appears to be more common in dancers than in the general population. The purpose of this study was to determine how hypermobility affects eyes-closed single-limb balance as an indirect measure of proprioception in dancers. The secondary aim was to compare hypermobility and balance across dancer affiliation groups...
June 15, 2017: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/28535848/potential-predictors-of-injury-among-pre-professional-ballet-and-contemporary-dancers
#15
Rebecca K Yau, Yvonne M Golightly, David B Richardson, Cristin D Runfola, Anna E Waller, Stephen W Marshall
Injuries occur frequently among ballet and contemporary dancers. However, limited literature exists on injuries to pre-professional dancers in the USA. The goals of this study were to 1. provide a descriptive epidemiology of the incidence of musculoskeletal injuries in an adolescent and young adult dance population and 2. identify parsimonious regression models that could be potentially used to predict injury incidence. The study was based at the University of North Carolina School of the Arts (UNCSA) from Fall 2009 to Spring 2015...
June 15, 2017: Journal of Dance Medicine & Science
https://www.readbyqxmd.com/read/28364614/life-history-and-point-prevalence-of-low-back-pain-in-pre-professional-and-professional-dancers
#16
Christopher T V Swain, Elizabeth J Bradshaw, Douglas G Whyte, Christina L Ekegren
OBJECTIVES: To investigate lifetime history and point prevalence of low back pain (LBP) in pre-professional and professional dancers and to identify any demographic or physical factors associated with LBP in dancers. DESIGN: Cross-sectional study. SETTING: One pre-professional ballet school, two pre-professional university dance programs, and a professional nationally touring ballet company. PARTICIPANTS: Male and female classical ballet and contemporary dancers aged 12 years old and above...
May 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28338396/should-ballet-dancers-vary-postures-and-under-foot-surfaces-when-practicing-postural-balance
#17
Nili Steinberg, Gordon Waddington, Roger Adams, Janet Karin, Oren Tirosh
BACKGROUND: Postural balance (PB) is an important component skill for professional dancers. However, the effects of different types of postures and different underfoot surfaces on PB have not been adequately addressed. PURPOSE: The main aim of the present study was to investigate the effect of different conditions of footwear, surfaces, and standing positions on static and dynamic PB ability of young ballet dancers. METHOD: Thirty-six male and female young professional ballet dancers (aged 14-19) completed static and dynamic balance testing, measured by head and lumbar accelerometers, while standing on one leg in the turn-out position, under six different conditions: 1...
March 24, 2017: Motor Control
https://www.readbyqxmd.com/read/28282478/the-relationship-between-muscular-strength-and-dance-injuries-a-systematic-review
#18
REVIEW
João P Moita, Alexandre Nunes, José Esteves, Raul Oliveira, Luis Xarez
BACKGROUND: The physical demands placed on dancers put them at significant risk for injury, with rates similar to ones sustained by athletes in sports at the same level of performance. Muscle strength has been suggested to play a preventative role against injury in dancers. OBJECTIVE: To systematically search and examine the available evidence on the protective role of muscle strength in dance injuries. METHODS: Five electronic databases and two dance-specific science publications were screened up to September 2015...
March 2017: Medical Problems of Performing Artists
https://www.readbyqxmd.com/read/28264664/experience-dependent-modulation-of-alpha-and-beta-during-action-observation-and-motor-imagery
#19
Paula M Di Nota, Julie M Chartrand, Gabriella R Levkov, Rodrigo Montefusco-Siegmund, Joseph F X DeSouza
BACKGROUND: EEG studies investigating the neural networks that facilitate action observation (AO) and kinaesthetic motor imagery (KMI) have shown reduced, or desynchronized, power in the alpha (8-12 Hz) and beta (13-30 Hz) frequency bands relative to rest, reflecting efficient activation of task-relevant areas. Functional modulation of these networks through expertise in dance has been established using fMRI, with greater activation among experts during AO. While there is evidence for experience-dependent plasticity of alpha power during AO of dance, the influence of familiarity on beta power during AO, and alpha and beta activity during KMI, remain unclear...
March 6, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28242800/rupture-of-the-extensor-hood-of-the-fifth-toe-a-rare-injury
#20
Sara Venturini, Suchi Gaba, Jitendra Mangwani
Closed injuries of the extensor hood of the lesser toes are rare and seldom reported in the literature. We present the case of a woman aged 25 years who presented to the orthopaedic fracture clinic with a 2-week history of pain in the left fifth toe and inability to extend following a ballet dancing session. Investigations showed no fracture on plain radiographs, but an ultrasound scan demonstrated rupture to the extensor hood of the little toe. Successful surgical repair of the extensor hood was performed, and the patient made a good recovery with return to dancing activities...
February 27, 2017: BMJ Case Reports
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