采用前臂前技术测量棒球运动员的膜外旋转
Aaron Sciascia1, Michael Smith2, Joseph Holstedt2
1Institute for Clinical Outcomes and Research, Lexington Clinic, Lexington, Kentucky.
Sports health
|March 19, 2024
概括
前臂伸展显著降低了子外侧旋转 (GER) 能力. 评估GER与pronation (GERP) 是至关重要的,因为它反映了适应性投反应和潜在的受伤风险因素.
科学领域:
- 运动医学 运动医学
- 生物力学 生物力学
- 整形外科手术 整形外科手术
背景情况:
- 腺旋转 (GIR,GER) 和总运动范围 (TROM) 的变化与运动员受伤风险的增加有关.
- 骨外围旋转 (GER) 通常是用前臂在中性旋转 (GERN) 中测量,但前臂前臂测量 (GERP) 可能提供不同的见解.
- 以前的研究表明,在小联盟投手中,GERN大于GERP,因此需要复制并扩展到其他棒球投手组.
研究的目的:
- 为了调查GERP是否明显低于独立联盟棒球投手的GERN.
- 为了比较独立联盟投手和以前研究的一组小联盟投手之间的GERP和GERN测量.
- 评估投和非投手臂之间,以及测量技术之间的角旋转和TROM的差异.
主要方法:
- 采用了横截面研究设计,涉及37名独立联盟棒球投手.
- 对双边GIR,GERN和GERP以及TROM进行了度测量.
- 数据与先前的一项研究进行了比较,分析了组间的差异,手臂和前臂旋转技术 (中性和前臂旋转).
主要成果:
- 在独立联赛的投手中,GERP对两只手臂都明显低于GERN (P < 0.01).
- 与小联盟投手相比,独立联盟投手在GIR,GERN和GERP中表现出更大的双臂差异.
- 虽然独立联盟投手的TROM在测量技术之间没有显著差异,但小联盟投手在投手手臂中显示了TROM的减少.
结论:
- 该研究证实,前臂伸展导致GER能力下降,突出显示了对投的适应性反应.
- 评估GERP对于全面了解投者肩部机制至关重要.
- 虽然GERP应该在所有投篮小组中进行评估,但在特定人群中可能存在差异.
相关概念视频
01:14Assessing Body Temperature - Axilla
Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
01:19Bones of the Upper Limb: Humerus
The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
01:15Bones of the Upper Limb: Ulna
The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side of the...
01:16Muscles that Move the Forearm
The muscles that move the forearms can be divided into four groups: forearm flexors, forearm extensors, forearm pronators, and forearm supinators. The flexors and extensors act on the elbow joint, while the pronators and supinators act on the radioulnar joints.
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...