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1.
J Dance Med Sci ; 27(4): 203-221, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37341101

ABSTRACT

INTRODUCTION: 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. MATERIALS AND METHODS: 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. RESULTS: 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. CONCLUSIONS: 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.


Subject(s)
Dancing , Low Back Pain , Social Media , Humans , Dancing/physiology , Movement , Range of Motion, Articular/physiology
2.
J Dance Med Sci ; 26(3): 173-180, 2022 Sep 15.
Article in English | MEDLINE | ID: mdl-35697484

ABSTRACT

INTRODUCTION: Low back pain (LBP) lifetime prevalence in dancers reportedly ranges from 17% to 88%. Low back pain can have negative secondary consequences on dancers' lives and careers. Still, how LBP impacts dancer function and medical care-seeking behaviors and whether these issues differ across dance genres, is understudied.
Materials and Methods: Two hundred and eight-nine ballet, modern, and hip-hop dancers and teachers (median age: 20.3 years; range: 18 to 69 years) in the United States completed an online 24-question survey assessing LBP related self-reported injury history, impact on their lives, and management strategies. We defined LBP as occurrence of acute or chronic pain in the lumbar or sacral regions of the back.
Results: Two hundred and fifty-seven participants (88.9% of 289 total) reported at least one instance of LBP during their lifetime and 220 participants reported LBP in the prior 4 weeks. Of these 220, 72 (32.7%) had LBP severe enough to limit their activities of daily living. Of the 213 who had LBP and danced during that time, 89 (41.8%) reported that LBP limited their dancing. Pain intensity (median: 4 on a 0 to 10 scale, IQR: 3.0) and LBP prevalence were similar across dance genres. Dancers sought multiple medical professionals, most often chiropractors (n = 94, 33.8%), medical doctors (n = 77, 27.7%), and physiotherapists (n = 60, 21.6%). Ninety dancers (35.0% of those with LBP) never sought medical care. Dancers who did seek care reported higher pain intensities (median: 4, IQR: 3.8) than those who did not (median: 3, IQR: 3.0).
Conclusion: Overall, most participants did suffer from LBP. Low back pain negatively impacts dancers' everyday activities and dancing. Pain intensity and loss of function may impact care-seeking. Our findings highlight the need for all dance stakeholders to educate dancers about their health, provide resources for dancer health care, and proactively create an environment that supports injury reporting behaviors in dancers.


Subject(s)
Dancing , Low Back Pain , Activities of Daily Living , Adult , Dancing/injuries , Humans , Low Back Pain/epidemiology , Low Back Pain/therapy , Pain Measurement , Physical Therapy Modalities , United States/epidemiology , Young Adult
3.
Int J Sports Phys Ther ; 15(5): 671-687, 2020 Oct.
Article in English | MEDLINE | ID: mdl-33110686

ABSTRACT

BACKGROUND: Low back pain is believed to be a common complaint among dancers; however, a comparison across recent research is needed to support or disprove this assertion across genres. PURPOSE: To determine the prevalence of low back pain and low back injury in ballet, modern, and hip-hop dancers through a systematic literature review. A secondary goal was to identify trends amongst dance genres, level of mastery, gender, and age, if possible. STUDY DESIGN: Systematic Review of the Literature. METHODS: PRISMA search strategy of terms relating to dance and low back pain was conducted within the Pubmed, MEDLINE, SPORTDiscus, Web of Science, and the archives of the Journal of Dance Medicine and Science databases between November 2017 and March 2018. Inclusion criteria were published articles that addressed low back pain or injury in ballet, modern, or hip-hop dance population. Exclusion criteria included studies relating to specific pathologies or studies that did not report specific dance genre. All included articles were assessed for quality using a modified grading evaluation and a Modified Newcastle-Ottawa Risk of Bias assessment. RESULTS: Twenty-five ballet articles, five modern, and three hip-hop articles met the inclusion criteria, for a total of 33 articles. Twenty-five of the 33 studies relied on a questionnaire to gather data. Risk of bias results ranged from 3-7/10 and quality of studies ranged from Good I to Limited III. Prevalence of low back pain seems relatively high in ballet dance (range: 20.3%-79% of total dancers are affected). Little research exists on the prevalence of back pain in modern or hip-hop dancers, but hip-hop dancers also seem likely to have low back pain (range: 46.6%-85.7% of total dancers are affected). Low back injuries are also present in ballet (range: 2.1%-88% of total injuries), modern (range: 8.6%-21.6% of total injuries), and hip-hop (range: 26.3%-69.6%). CONCLUSION: Ballet dancers seem to be at risk for low back pain or injury independent of gender, age or level of mastery; however, there is not enough evidence to draw any conclusions about modern dancers or hip-hop dancers and their risk for low back pain/injury currently. Future higher-level studies are needed with reduced risk of bias. LEVEL OF EVIDENCE: 2a.

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