Lower limb kinematics and hip extensors strengths are associated with performance of runners at high risk of injury during the modified Star Excursion Balance Test |
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| Institution: | 1. Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil;2. Department of Physical Therapy, Graduate Program in Rehabilitation Sciences, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil;3. Department of Physical Therapy, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil;1. Faculty of Health, Therapeutic Process Department, Temuco Catholic University, Temuco, Chile;2. Rehabilitation in Health Research Center (CIRES), Universidad de las Américas, Santiago, Chile;3. School of Health Sciences, Physical Therapy Department, Universidad Gabriela Mistral, Santiago, Chile;4. Faculty of Health, Universidad SEK, Santiago, Chile;1. Center of Health Sciences, Discipline of Physiotherapy, Universidade Federal do Espírito Santo (UFES), Vitória, ES, Brazil;2. NeuroGroup, Discipline of Physiotherapy, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil;3. Department of Occupational Therapy, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil;1. Program Colciencias, Bogotá, Colombia;2. Department of Preventive Medicine, Universidad Autónoma de Madrid, Madrid, Spain;3. La Paz University Hospital Research Institute (Idipaz), Madrid, Spain;4. Department of Geriatric Medicine, Hospital Universitario La Paz, Madrid, Spain;5. Department of Medicine, Universidad Autónoma de Madrid, Madrid, Spain;1. Faculty of Health, Therapeutic Process Department, Temuco Catholic University, Temuco, Chile;2. Rehabilitation in Health Research Center, CIRES, Universidad de las Américas, Echaurren Street 140, 3rd floor, Santiago, Chile;3. Physical Therapy Department, Clinical Hospital San Borja Arriaran, Santiago, Chile;4. Faculty of Health Sciences, Universidad SEK, Santiago, Chile;1. Department of Human Performance and Exercise Science, Youngstown State University, Youngstown, OH, United States;2. VCU RUN LAB, Department of Kinesiology and Health Sciences, Virginia Commonwealth University, Richmond, VA, United States;3. Department of Physical Therapy, Virginia Commonwealth University, Richmond, VA, United States;1. Physical Therapy Program, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-7251, USA;2. Athletics Department, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-7251, USA;3. School of Exercise and Nutritional Sciences, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182-7251, USA |
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| Abstract: | BackgroundReduced trunk and lower limb movement and hip and trunk muscles weakness may compromise the athletes’ performance on the modified Star Excursion Balance Test (mSEBT).ObjectiveTo investigate the relationship of trunk and lower limb kinematics and strength with the performance on the mSEBT of runners at high risk of injury.MethodsThirty-nine runners performed the mSEBT with the dominant limb as the support limb. An Inertial System was used to capture the trunk, hip, knee and ankle movement during the mSEBT. A handheld dynamometer was used to measure the strength of trunk extensors and lateral flexors muscles, and hip extensors, lateral rotators and abductors of the support limb. Multiple regressions were used to investigate if trunk and lower limbs kinematics and trunk and hip muscles strength are associated with performance during the mSEBT.ResultsReduced hip flexion and greater knee flexion range of motion (ROM) were associated with anterior reach in the mSEBT (r2 = 0.45; p < .001), greater hip flexion ROM was associated with posteromedial reach (r2 = 0.15; p = .012) and greater knee flexion ROM was associated with posterolateral reach (r2 = 0.23; p < .001). Hip extensor strength was associated with posteromedial (r2 = 0.14; p = .017), posterolateral (r2 = 0.10; p = .038) and composite reaches (r2 = 0.16; p = .009).ConclusionHip and knee kinematics in the sagittal plane explained 15–45% of the runners’ performance on the mSEBT and hip extensor strength explained 10–16% of the mSEBT performance. These findings provide useful information on the contribution of joints kinematics and strength when evaluating dynamic postural control in runners at high risk of injury. |
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| Keywords: | Postural balance Angular displacement Inertial system Torque Movement |
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