Physical Performance and 3D Shoulder Kinematics of Asymptomatic Unilateral/Bilateral Overhead Athletes and Non-athletes
试验速览
- 阶段
- 不适用
- 入组人数
- 90
- 试验地点
- 3
- 主要终点
- Side-to-side differences in the unilateral seated shot put test (normalized distance thrown, in centimeters)
研究概览
简要总结
This study compares the performance and 3-dimensional shoulder kinematics between sides in unilateral overhead-throwers (volleyball attackers), bilateral overhead athletes (swimmers) and non-athletes during two physical performance measures of the upper extremity, one in an open kinetic chain position (unilateral seated shot put test) and the other in a closed kinetic chain position (upper quarter Y balance test)
详细描述
3-dimensional shoulder kinematics (e.g., scapular angular position/displacement) at key events of each test will be described and compared across sides and groups. For the unilateral seated shot put test, the events are based on humeral motion: a) initiation of humeral motion, b) maximal humeral flexion, c) end of humeral motion. For the upper quarter Y balance test the events are the a) initiation of free hand motion on "GO", b) maximal reach on the medial direction, c) maximal reach on superolateral direction, and d) maximal reach on the inferolateral direction (kinematics measured on the stance upper extremity). The best of 3 maximal-effort trials on each side will be used for analysis. Warm-up exercises and two submaximal practice trials will be performed for preparation for maximal efforts and familiarization with the tests. A rest period of at least one minute between trials will be given to guarantee good physiological conditions to maximally perform. Further resting time will be allowed, if necessary, upon request of the participant.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Perform at least 150 degrees of arm elevation
排除标准
- •history of shoulder dislocation
- •surgery in the upper extremity ≥ 6 months
- •injury in the past month
- •evident abnormalities in posture and movement of the upper body quadrant
- •pain at the time of testing
结局指标
主要结局
Side-to-side differences in the unilateral seated shot put test (normalized distance thrown, in centimeters)
时间窗: Through study completion, an average of 1 year
The unilateral seated shot put test consists of pushing (not throwing) at shoulder height a \~3kg medicine ball as far and forward as possible while keeping the axial skeleton in contact with a wall, knees bent at a right angle, feet flat on the floor, and the non-testing arm resting on the lap.
Side-to-side differences in the upper quarter Y balance test (normalized maximal distance reached in each direction, in centimeters)
时间窗: Through study completion, an average of 1 year
The upper quarter Y balance test is performed through the assistance of a testing device (Y-Balance Test Kit), with the subject stabilizing his/her body weight with the upper extremity being tested while performing maximal reaching efforts with the free hand in three directions: medial, superolateral, and inferolateral.
次要结局
- Side-to-side differences in 3-dimensional scapular angular displacement (in degrees)(Through study completion, an average of 1 year)
- Side-to-side differences in 3-dimensional humerus angular displacement (in degrees)(Through study completion, an average of 1 year)
- Side-to-side differences in 3-dimensional thoracic angular displacement (in degrees)(Through study completion, an average of 1 year)
- Side-to-side differences in the upper quarter Y balance test (total excursion, in centimeters)(Through study completion, an average of 1 year)
- Side-to-side differences in the upper quarter Y balance test (overall performance score, in centimeters)(Through study completion, an average of 1 year)
研究者
Nuno Morais
PhD student
Universidade do Porto