Multi-segment spine kinematics: Relationship with dance training and low back pain |
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| Institution: | 1. School of Behavioural and Health Sciences, Australian Catholic University, Daniel Mannix Building, 17 Young St, Fitzroy, VIC 3065, Australia;2. Department of Epidemiology and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC 3004, Australia;3. School of Behavioural and Health Sciences, Australian Catholic University, Edward Clancy Building, 167-169 Albert Road, Strathfield, NSW 2135, Australia;4. Centre for Sport Research, School of Exercise and Nutrition Sciences, Deakin University, 221 Burwood Highway, Burwood, VIC 3125, Australia;5. Sport Performance Research Institute New Zealand, Auckland University of Technology, 17 Antares Place, Rosedale, Auckland 0632, New Zealand;1. Univeristy of Southern California, Los Angeles, California, United States;2. Children’s Hospital Los Angeles, Los Angeles, California, United States;1. Graduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School, University of São Paulo, Brazil;2. College of Kinesiology, University of Saskatchewan, Canada;3. School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, Brazil;1. Facultad de Enfermería y Podología, Universidad de Valencia, C/Jaume Roig s/n, 46010, Valencia, Spain;2. Departamento de Ingeniería Mecánica y Construcción, Universitat Jaume I, Av. Vicent Sos Baynat, s/n, 12071, Castellón, Spain;1. School of Rehabilitation, Université de Montréal, Montreal, Canada;2. Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal (CRIR), Institut universitaire sur la réadaptation en déficience physique de Montréal (IURDPM), CIUSSS du Centre-Sud-de-l''Ile-de-Montréal, Montreal, Canada;1. Department of Rehabilitation Science, Faculty of Health Sciences, Hokkaido University. Sapporo, N12-W5, Kita-Ku, Sapporo, Hokkaido, 060-0812, Japan;2. Division of Rehabilitation, Sapporo Medical University Hospital, Sapporo Medical University, S1-W16, Chuo-Ku, Sapporo, Hokkaido, 060-8543, Japan;3. Department of Physical Therapy, School of Health Sciences, Sapporo Medical University, Sapporo, S1-W17, Chuo-Ku, Sapporo, Hokkaido, 060-8556, Japan;4. Graduate School of Health Sciences, Hokkaido University, N12-W5, Kita-Ku, Sapporo, Hokkaido, 060-0812, Japan |
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| Abstract: | BackgroundSpine posture, range of motion (ROM) and movement asymmetry can contribute to low back pain (LBP). These variables may have greater impact in populations required to perform repetitive spine movements, such as dancers; however, there is limited evidence to support this.Research questionWhat is the influence of dance and LBP on spinal kinematics?MethodsIn this cross-sectional study, multi-segment spinal kinematics were examined in 60 female participants, including dancers (n = 21) and non-dancers (n = 39) with LBP (n = 33) and without LBP (n = 27). A nine-camera motion analysis system sampling at 100 Hz was used to assess standing posture, as well as ROM and movement asymmetry for side bend and trunk rotation tasks. A two-way ANOVA was performed for each of the outcome variables to detect any differences between dancers and non-dancers, or individuals with and without LBP.ResultsCompared to non-dancers, dancers displayed a flatter upper lumbar angle when standing (p < 0.01, ηp2 = 0.15), and achieved greater frontal plane ROM for the upper lumbar (p = 0.04, ηp2 = 0.08) and lower thoracic (p = 0.02, ηp2 = 0.09) segments. There were no differences between dancers and non-dancers for transverse plane ROM (p > 0.05) or movement asymmetry (p > 0.05). There was no main effect for LBP symptoms on any kinematic measures, and no interaction effect for dance group and LBP on spinal kinematics (p > 0.05).SignificanceFemale dancers displayed a flatter spine posture and increased spine ROM compared to non-dancers for a select number of spine segments and movement tasks. However, the overall number of differences was small, and no relationship was observed between LBP and spinal kinematics. This suggests that these simple, static posture, ROM, and asymmetry measures often used in clinical practice can provide only limited generalisable information about the impact of dance or LBP on spinal kinematics. |
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| Keywords: | Biomechanics Posture Range of motion Movement asymmetry Ballet Contemporary dance |
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