None listed
Conditions
Brief summary
Background and purpose: Shoulder and back injuries are the most common injury segments in loaded overarm sports, such as weightlifting. However, the associated risk factors and injury prevention have never been explored in the previous studies. Therefore we would like to hold a study to firstly determine the association between the musculoskeletal characteristics/ motor control performance and the weightlifting related shoulder-back injuries Methods: This study is divided into two phases: the first phase is an exploratory, correlational study, and the second phase is a prospective, longitudinal cohort study. For the first phase, we plan to recruit 30 collegiate/ high school students who have participated in weightlifting activities for more than three years, and have had repeated shoulder or back injury histories to be recruited in the injured group. 30 students have no chronic shoulder or back problems will be recruited as the control group. The demographic data will be collected, followed by measurement of musculoskeletal characteristics and motor control performance of the shoulder and back. Afterwards, the measurement of kinematics and muscle activation of the shoulder, trunk, hip, knee, and ankle, and foot pressure will be carried out during the snatch task. The relationship between the musculoskeletal and motor control characteristics and shoulder and back injuries is then assessed and associated factors are identified. After the baseline assessment, participants enter the second phase of the study and are followed for 12 months to record the injury incidence and severity and repeat the clinical assessment every three months. The potential risk factors are calculated to identify the predictors for the shoulder and back injuries.
Interventions
Following evaluations will be performed by well-trained physiotherapies at the initiation of study and following up, each 3 months for a year, as pending risk factor for the sports related shoulder-back injury.
1. Strength: The strength of major muscles in loaded overarm sports, including bilateral biceps brachii, deltoid, trapezius, pectoris major, shoulder external rotator, latissimus dorsi, gluteus maximum, hamstring, quadriceps, hip abductor and hip rotator, will be measured by hand-held dy
Following evaluations will be performed by well-trained physiotherapies at the initiation of study and following up, each 3 months for a year, as pending risk factor for the sports related shoulder-back injury. 1. Strength: The strength of major muscles in loaded overarm sports, including bilateral biceps brachii, deltoid, trapezius, pectoris major, shoulder external rotator, latissimus dorsi, gluteus maximum, hamstring, quadriceps, hip abductor and hip rotator, will be measured by hand-held dynamometer, and finished in 30 min. 2. Range of motion: All direction of movement in injury-related joints, bilateral shoulder, hip, knee, ankle, and thoracic, lumbar spine, will be measured by goniometer/ inclinometer. These measurement may take 15 min. 3. Functional movement assessment: Y-balance test for upper limb and functional movement screening (FMS). These measurement may take 30 min. 4. Kinematics, muscle activation and foot pressure: The kinematic data, muscle activation and foot pressure will be recorded when performing loaded overarm sports. For the kinematic variables, there include joint movement of bilateral shoulder, hip, knee, ankle and thoracic, lumbar spine. The electromyography will measurement in the injured side, which include biceps brachii, deltoid, upper and lower trapizeus, erector spinus, gluteus maximum, quadriceps and semitendinosus. A pair of foot pressure insole will put inside shoes during test. These measurement procedure may take a hour. In the first phase, the sports related shoulder-back injuries in a past year will be record retrospectively, and the results of initial evaluations will be used to recognize risk factor. The second phase starts immediately after initial evaluation. The conditions of sports related shoulder-back injuries for each subject will be recognized from the interview by physiotherapies per 2 weeks and following up for a year.
Sponsors
Yi-fen Shih
Eligibility
Sex/Gender
All
Age
15 Years to 35 Years
Healthy volunteers
No
Inclusion criteria
Performing the loaded overarm sports more than 3 years and under regular training with coach more than a year.
Exclusion criteria
1. Acute pain/ injury 2. Cervical pathology 3. Neurological / systemic disease 4. Receiving and musculoskeletal surgery 5. Pregnant
Outcome results
None listed