baseball

棒球
  • 文章类型: Journal Article
    正念相关实践(例如,瑜伽)在发展与运动相关的能力(如注意力调节)方面与运动表现领域保持一致,意志,感知,和应对。本叙事研究的目的是探索职业棒球运动员的经验,他们与瑜伽和正念接受承诺(MAC)课程中提出的正念思想和实践进行互动。参与者是七名小联盟棒球运动员,他们在淡季的教学课上学习了正念练习,然后完成了半结构化的情景访谈,以了解他们的正念练习在棒球赛季的训练和比赛中如何被感知和利用。使用三维空间方法分析数据,以检查参与者的主观经验账户,行为,环境条件,和外部事件。个人叙述被重新描述和主题化。结果表明不同设置的各种主题,来自瑜伽/MAC课程中的玩家经验(呼吸调节对应对策略的影响;自我意识和身心联系),在棒球场上(自信和自我效能感;自我调节;韧性和积极的应对策略),和棒球场外(日常生活和活动;心理训练的耻辱)。总的来说,参与者似乎接受了将正念融入他们的训练,并提供了支持瑜伽/MAC课程益处的观点。这项研究对将瑜伽和基于正念的练习纳入年轻职业运动员的运动表现具有研究和实践意义。
    Mindfulness-related practices (e.g., yoga) appear aligned with the field of athletic performance in developing sport-related capacities such as attention regulation, volition, perception, and coping. The purpose of the present narrative study was to explore the experiences of professional baseball players who interacted with the ideas and practices of mindfulness presented in classes featuring yoga and Mindfulness-Acceptance-Commitment (MAC). Participants were seven Minor League Baseball players who learned mindfulness practices in off-season instructional classes and then completed semi-structured episodic interviews on how their mindfulness practices were perceived and utilized in training and competition during the baseball season. Data were analyzed using the three-dimensional space approach to examine participants\' subjective accounts of experience, behavior, environmental conditions, and external events. Individual narratives were re-storied and themed. Results indicated various themes across settings, from players\' experiences in the yoga/MAC classes (effect of breath regulation on coping strategies; self-awareness and the mind-body connection), on the baseball field (confidence and self-efficacy; self-regulation; resilience and positive coping strategies), and off the baseball field (everyday life and activities; stigma of mental training). Overall, participants appeared to be accepting of mindfulness integrated into their training and provided perspectives supporting the benefits of yoga/MAC classes. This study has research and practice implications in incorporating yoga and mindfulness-based practices in athletic performance among young professional athletes.
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  • 文章类型: Journal Article
    肱骨头剥脱性骨软骨炎(OCD)是一种罕见且具有挑战性的疾病。有几种手术选择,但是在过去的几年里,钟摆从清创和微骨折到关节面的恢复。已经描述了来自肋骨和膝盖的骨软骨自体移植物,但是供体部位的发病率令人担忧。
    在先前发表的报告中扩展新鲜骨软骨同种异体移植(FOCAT)的结果,包括更多患者和更长的随访期。
    案例系列;证据级别,4.
    机构审查委员会批准后,我们回顾了在2006年至2022年期间由1名外科医生接受FOCAT治疗的患者的图表.大多数病例(94%)具有不稳定的病变(Minami2级和3级)。一项非手术治疗试验全部失败。所有患者均接受诊断性关节镜检查,接着是一个迷你开放,保留韧带的方法,使用市售的指南和器械进行移植。
    总共确定了35名患者,其中25人为男性。平均年龄为16±3.9岁(范围,11-32岁)。有24名棒球运动员(19名投手和5名位置球员),5名体操运动员,3个啦啦队/不倒翁,1名网球运动员,1名学生(没有参加体育运动),1例化疗后血管坏死。18例患者的平均屈曲挛缩为14.1°±11.9°。在23例患者中使用了单个骨软骨同种异体移植塞(平均直径,11.3±2.8mm),和12名患者需要2个插头(万事达卡技术)。平均随访92.6±54.5个月(范围,24-204个月)。牛津(从25.5±4.9到46.7±3.5;P<.00001)和疼痛视觉模拟量表(从7.5±2到0.3±1.0;P<.0001)评分均有显着改善。随访时的平均单次评估数字评估评分为90.6±10.8(范围,60-100)。在头顶运动员中,Kerlan-Jobe骨科临床评分显著改善(从40.8±11.8降至90.6±10.8;P<.00001).对16例(46%)患者进行了平均32.6个月的术后磁共振成像扫描。在所有情况下,移植物被合并。所有高架运动员都能够恢复他们的运动,并在超过2年的时间内以相同或更高的水平表现。两个肘部需要随后的关节镜检查以去除松体;否则,没有其他并发症。
    FOCAT是治疗肱骨头强迫症病变的绝佳选择。观察到出色的结果和较高的重返运动率,中期随访显示无移植失败。FOCAT消除了供体部位的发病率。
    UNASSIGNED: Osteochondritis dissecans (OCD) of the humeral capitellum is a rare and challenging condition to treat. Several surgical options exist, but in the last few years, the pendulum has swung from debridement and microfracture to restoration of the articular surface. Osteochondral autografts from the rib and knee have been described, but donor-site morbidity is a concern.
    UNASSIGNED: To expand the results of fresh osteochondral allograft transplantation (FOCAT) in a previously published report with inclusion of additional patients and a longer follow-up period.
    UNASSIGNED: Case series; Level of evidence, 4.
    UNASSIGNED: After institutional review board approval, the charts of patients who underwent FOCAT for OCD of the capitellum between 2006 and 2022 by a single surgeon were reviewed. The majority of cases (94%) had unstable lesions (Minami grades 2 and 3). A trial of nonoperative treatment had failed in all. All patients underwent diagnostic arthroscopy, followed by a mini-open, ligament-sparing approach with grafting using commercially available guides and instruments.
    UNASSIGNED: A total of 35 patients were identified, of whom 25 were male. The mean age was 16 ± 3.9 years (range, 11-32 years). There were 24 baseball players (19 pitchers and 5 position players), 5 gymnasts, 3 cheerleaders/tumblers, 1 tennis player, 1 student (who did not participate in athletics), and 1 patient with avascular necrosis from chemotherapy. Eighteen patients had a mean flexion contracture of 14.1°± 11.9°. A single osteochondral allograft plug was used in 23 patients (mean diameter, 11.3 ± 2.8 mm), and 12 patients required 2 plugs (Mastercard technique). The mean follow-up was 92.6 ± 54.5 months (range, 24-204 months). There was significant improvement in Oxford (from 25.5 ± 4.9 to 46.7 ± 3.5; P < .00001) and visual analog scale for pain (from 7.5 ± 2 to 0.3 ± 1.0; P < .0001) scores. The mean Single Assessment Numeric Evaluation score at the time of follow-up was 90.6 ± 10.8 (range, 60-100). In overhead athletes, there was significant improvement in the Kerlan-Jobe Orthopaedic Clinic score (from 40.8 ± 11.8 to 90.6 ± 10.8; P < .00001). A postoperative magnetic resonance imaging scan was obtained in 16 (46%) patients at a mean of 32.6 months. In all cases, the graft was incorporated. All overhead athletes were able to return to their sport and perform at the same level or higher for >2 years. Two elbows required a subsequent arthroscopy for loose-body removal; otherwise, there were no other complications.
    UNASSIGNED: FOCAT is an excellent option for treating OCD lesions of the humeral capitellum. Excellent outcomes and high return-to-sport rates were observed, with midterm follow-up showing no graft failures. FOCAT eliminates donor-site morbidity.
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  • 文章类型: Journal Article
    投手经常经历肩前疼痛,可能与冠状动脉撞击有关;然而,由于俯仰,喙肱骨距离(CHD)和/或肩胛骨下肌腱是否长期适应(双侧差异),以及临床措施是否与CHD和肩胛骨下肌腱组织相关尚未在专业投手中进行评估。
    作者假设优势臂CHD比非优势臂小,优势肩胛骨下肌腱会增加空间频率(即,更加混乱),肱骨逆行(HR)可以预测CHD和肩胛骨下肌腱组织。
    4级。
    健康的职业棒球投手在季前体检时被招募。双侧诊断超声测量冠心病,HR,和后囊厚度(PCT),并量化肩胛骨下肌腱组织。外部旋转,中性,并对CrossbodyCHD进行了测量。
    总的来说,52名健康的职业棒球投手参加了比赛。投手的优势臂在所有3个位置均显示出明显较窄的CHD(P<0.01),肩胛骨前移增加(163vs156mm;P<0.01),肩胛下肌腱空间频率增加(1.8vs1.6峰/mm;P<0.01)。外旋30°时HR与CHD相关(R2=0.12;P<0.01),中性旋转(R2=0.11;P<0.01),和交叉位置(R2=0.28;P<0.01)。PCT与外旋30°CHD相关(R2=0.16;P=0.05)。外旋30°的HR和CHD与肩胛骨下肌腱组织密切相关(R2=0.11;P=0.03)。
    职业投手的优势肩呈现出较小的CHD,更多的肩胛骨前移,肩胛骨下肌腱比非显性肩关节更多。
    专业投手展示慢性冠心病和肩胛骨下肌腱适应,这可能会增加肩前疼痛和肩胛骨下肌腱损伤的风险。
    UNASSIGNED: Pitchers frequently experience anterior shoulder pain, possibly associated with coracohumeral impingement; however, whether the coracohumeral distance (CHD) and/or subscapularis tendon adapt chronically (bilateral difference) due to pitching, and whether clinical measures are associated with CHD and subscapularis tendon organization have not been evaluated in professional pitchers.
    UNASSIGNED: The authors hypothesized that dominant arm CHD would be smaller than the nondominant arm, dominant subscapularis tendon would have increased spatial frequency (ie, be more disorganized), and humeral retroversion (HR) would predict CHD and subscapularis tendon organization.
    UNASSIGNED: Level 4.
    UNASSIGNED: Healthy professional baseball pitchers were recruited during their preseason physical examination. Bilateral diagnostic ultrasound measured CHD, HR, and posterior capsule thickness (PCT), and quantified subscapularis tendon organization. External rotation, neutral, and crossbody CHD was measured.
    UNASSIGNED: Overall, 52 healthy professional baseball pitchers participated. The dominant arm of pitchers demonstrated a significantly narrower CHD in all 3 positions (P < 0.01), increased scapular protraction (163 vs 156 mm; P < 0.01), and increased spatial frequency of the subscapularis tendon (1.8 vs 1.6 peaks/mm; P < 0.01). HR was associated with CHD in 30° of external rotation (R2 = 0.12; P < 0.01), neutral rotation (R2 = 0.11; P < 0.01), and the crossbody position (R2 = 0.28; P < 0.01). PCT was associated with CHD in 30° of external rotation (R2 = 0.16; P = 0.05). HR and CHD in 30° of external rotation was associated most strongly with subscapularis tendon organization (R2 = 0.11; P = 0.03).
    UNASSIGNED: The dominant shoulder of professional pitchers presents with a smaller CHD, more scapular protraction, and more subscapularis tendon disorganization than the nondominant shoulder.
    UNASSIGNED: Professional pitchers demonstrate chronic CHD and subscapularis tendon adaptations, which may increase their risk for anterior shoulder pain and subscapularis tendon injury.
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  • 文章类型: Journal Article
    虽然尺侧副韧带撕裂手术修复的初步报告是有希望的,缺乏详细说明修复后结果的研究。这项研究探讨了尺侧副韧带(UCL)修复在使职业棒球运动员恢复受伤前水平方面的有效性。我们的假设是,接受UCL修复的职业棒球运动员将在手术后获得成功的结果和较高的运动回报率。
    利用公开可用的数据库搜索2016年至2021年接受UCL维修的职业棒球运动员的数据。包括使用内部支架进行主要UCL修复的玩家。业余球员被排除在外,那些正在进行UCL修复或UCL重建的球员也被排除在外。
    在接受UCL修复的11个投手中,小联盟棒球(MiLB)投手平均在17.5个月内重返这项运动。MiLB投手的平均得分(ERA)相似,玩游戏,一局投球,手术前后步行加每局击球率(WHIPs)。四个美国职业棒球大联盟(MLB)投手(80%)在9.55个月时重返这项运动。与手术前相比,美国职业棒球大联盟投手的比赛次数更少,投球次数也更少,但他们的ERA和WHIP在手术前后相似。手术后的俯仰速度和旋转速率根据俯仰类型而变化。接受UCL修复的七名位置球员在手术前后的击球或投篮表现没有差异。
    UCL修复可以成功地使投手和位置球员在MiLB和MLB级别都返回到受伤前的表现水平。对于希望在手术后以最少的恢复时间最大化表现的球员来说,修复可以被视为合格伤害的一种选择。证据等级:IV。
    UNASSIGNED: While initial reports of surgical repair of ulnar collateral ligament tears are promising, studies detailing post-repair outcomes are lacking. This study explores the effectiveness of ulnar collateral ligament (UCL) repair in returning professional baseball players to their pre-injury level of play. Our hypothesis is that professional baseball players undergoing UCL repair will have successful outcomes and high return to sport rates after surgery.
    UNASSIGNED: Publicly available databases were utilized to search for data on professional baseball players who underwent UCL repair from 2016 to 2021. Players undergoing primary UCL repair with an internal brace were included. Amateur players were excluded as were those undergoing revision UCL repair or UCL reconstruction.
    UNASSIGNED: Of the 11 pitchers who underwent UCL repair, minor league baseball (MiLB) pitchers returned to the sport at an average of 17.5 months. MiLB pitchers had similar earned run averages (ERAs), games played, innings pitched, and walks plus hits per inning pitched ratios (WHIPs) before and after surgery. Four major league baseball (MLB) pitchers (80%) returned to the sport at 9.55 months. MLB pitchers played fewer games and pitched fewer innings than before the surgery, but their ERAs and WHIPs were similar before and after surgery. Pitch velocity and spin rates after surgery varied based on pitch type. The seven positional players who underwent UCL repair showed no differences in batting or fielding performance before and after surgery.
    UNASSIGNED: UCL repair can successfully return both pitchers and positional players at both the MiLB and MLB levels to play at pre-injury performance levels. Repair can be considered as an option for qualifying injuries in players hoping to maximize performance after surgery with minimal recovery time. Level of Evidence: IV.
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  • 文章类型: Journal Article
    尺侧副韧带(UCL)对于俯仰时的肘部稳定性至关重要。在职业棒球中,快球(FB)是最常用的音高,使UCL重建(UCLR)后的恢复后FB性能成为需要考虑的关键方面。
    (1)与具有相似FB速度和旋转速率的非操作投手相比,进行UCLR的投手的性能指标没有显着变化,(2)在受伤前的人体测量特征和投球性能指标方面,在这些指标中没有发现显着差异。
    队列研究;证据水平,3.
    该研究包括91名美国职业棒球大联盟(MLB)投手,他们在2015年1月1日至2021年12月31日期间接受了主要的UCLR。建立了无UCLR损伤的MLB投手的匹配的1:1对照组。在研究组和对照组之间比较了公开的音高指标和人体测量数据。
    在第一个后年度(PRY1)出现了几个绩效指标的差异,包括FB使用百分比(P=0.029),外野手独立投球(FIP)(P=.021),标准化FB每100个音高高于平均水平(wFB/C)(P<.001)。UCLR组中的亚组分析显示,从指标年到PRY1,手术前平均FB速度与其随后的变化之间呈负相关(P<.001),与FIP变化呈正相关(P=.025)。指数年的FB使用百分比与PRY1的变化之间呈负相关(P=.002)。到第二个后年,在这些性能指标中没有发现显著差异.没有因素与延长恢复时间显着相关。
    尽管FB速度和自旋速率保持一致,观察到FB使用百分比存在显著差异,FIP,和wFB/C在PRY1。然而,到第二年后,这些差异不再显著.在UCLR前FB俯仰指标和身体人体测量数据之间,没有发现有关延长恢复时间的特定风险因素。这些结果表明,尽管手术后的短期时间可能会影响更专门的投球指标,基本的投球性能指标,正如假设的那样,基本上不受UCLR的影响。
    UNASSIGNED: The ulnar collateral ligament (UCL) is essential for elbow stability during pitching. In professional baseball, the fastball (FB) is the most commonly used pitch, making postrecovery FB performance after UCL reconstruction (UCLR) a crucial aspect to consider.
    UNASSIGNED: (1) Pitchers undergoing UCLR would show no significant changes in performance metrics compared with nonoperated pitchers with similar FB velocity and spin rate, and (2) no significant variance would be found in these metrics within the operated pitchers concerning their preinjury anthropometric characteristics and pitching performance metrics.
    UNASSIGNED: Cohort study; Level of evidence, 3.
    UNASSIGNED: The study included 91 Major League Baseball (MLB) pitchers who underwent primary UCLR between January 1, 2015, and December 31, 2021. A matched 1:1 control group of MLB pitchers without UCLR injuries was established. Publicly available pitch metrics and anthropometric data were compared between the study and control groups.
    UNASSIGNED: Disparities in several performance metrics emerged during the first postreturn year (PRY1), including FB use percentage (P = .029), fielder independent pitching (FIP) (P = .021), and standardized FB runs above average per 100 pitches (wFB/C) (P < .001). Subgroup analysis within the UCLR group revealed a negative correlation between presurgery mean FB velocity and its subsequent change (P < .001) and a positive correlation with changes in FIP (P = .025) from the index year to PRY1. A negative correlation was observed between FB use percentage in the index year and its change by PRY1 (P = .002). By the second postreturn year, no significant differences were found in these performance metrics. No factors were significantly related to prolonged recovery time.
    UNASSIGNED: Although FB velocity and spin rate remained consistent, significant differences were observed in FB use percentage, FIP, and wFB/C in PRY1. However, by second postreturn year, these differences were no longer significant. No specific risk factors were identified concerning prolonged recovery time between pre-UCLR FB pitching metrics and the physical anthropometric data. These results suggest that although the short-term postsurgery period may affect more specialized pitching metrics, the basic pitching performance metrics, as hypothesized, remain largely unaffected by UCLR.
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  • 文章类型: Journal Article
    背景这项研究的目的是确定如何结合屈光度训练(PT),通过快速建立力量,重复的伸展和收缩,和壶铃训练(KT),使用比杠铃小的装置,允许力量和全身工作,影响高中投手在赛季中的身体表现和表现。材料和方法参与者(n=30男性;年龄组=16-19岁)被随机分为3组:复合训练组(CTG)(n=10),补强训练组(PTG)(n=10),和酮钟组(KTG)(n=10)。所有组每周进行两次训练,共4周。对等速强度进行干预前和干预后评估,以测量强度,垂直跳变(VJ)来测量功率,动平衡(Y-balance),和球速(BS)来衡量棒球表现。结果我们发现力量增加了,VJ,Y形平衡,和BS在CTG中,PTG,和KTG(p=.000)。CTG的结果与PTG和KTG的结果显着不同(p=.000)。PTG和KTG之间的右膝关节屈肌强度增加存在显着差异(p=.000)。结论CTG,PTG,而KTG对于投手在赛季中的提升明显。这些结果表明,组合训练,而不仅仅是一种类型的训练,影响投手的力量,VJ,Y形平衡,和BS在季节。
    BACKGROUND The purpose of this study was to determine how the combination of plyometric training (PT), which builds strength through fast, repetitive extensions and contractions, and kettlebell training (KT), using a device that is smaller than a barbell and allows for strength and full-body work, affects the physical performance and performance of high school pitchers during the season. MATERIAL AND METHODS Participants (n=30 males; age group=16-19 years) were randomized into 3 groups: compound training group (CTG) (n=10), plyometric training group (PTG) (n=10), and kettlebell group (KTG) (n=10). All groups performed training twice weekly for 4 weeks. Pre- and post-intervention assessments were conducted on isokinetic strength to measure strength, vertical jump (VJ) to measure power, dynamic balance (Y-balance), and ball speed (BS) to measure baseball performance. RESULTS We found there was increased strength, VJ, Y-balance, and BS in the CTG, PTG, and KTG (p=.000). CTG had significantly different results than PTG and KTG (p=.000). There was a significant difference in increased strength of the right knee joint flexors between PTG and KTG (p=.000). CONCLUSIONS CTG, PTG, and KTG for pitchers during the season improved significantly. These results suggest that combination training, rather than just 1 type of training, affects pitchers\' strength, VJ, Y-balance, and BS during the season.
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  • 文章类型: Journal Article
    磁共振成像(MRI)尺侧副韧带(UCL)异常与棒球运动员肘部症状之间的关系尚不清楚。
    本研究旨在比较UCL在棒球运动员无症状和有症状肘部的显微MRI上的发现。我们假设UCL损伤的MRI等级与棒球运动员的肘部内侧症状无关。
    横断面研究;证据水平,3.
    研究参与者是骨骼成熟的棒球运动员,他们接受了内侧肘的高分辨率显微MRI检查,包括体检。排除先前手术治疗或创伤性UCL损伤的肘部。将患者分为有症状组和无症状组。显微MRI上的UCL外观分为4级,并在组间进行比较。肘部内侧异常发现,包括上髁内侧骨块,巨大结节中的骨赘或骨碎片,还评估了巨大结节中的骨髓水肿(BME)。
    总共426名棒球运动员(426个肘部),平均年龄为20岁(范围,包括14-41岁)。无症状和有症状组包括158和268肘,分别。在无症状组中,根据UCL的MRI分级,46(29%)肘被评为一级,64(41%)为二级,40(25%)为III级,和8(5%)为IV级。在有症状的组中,75(28%)肘被评为一级,118(44%)为二级,61(23%)为三级,和14(5%)为IV级。两组之间的MRI分级没有显着差异(P=0.9)。与无症状组相比,有症状组的高结节BME更常见(P<0.001)。
    棒球运动员有症状和无症状肘部UCL的MRI等级没有差异;两组中约有30%的肘部表现出高度UCL损伤。在有症状的肘部中比在无症状的肘部中更常见的是高结节中的BME。与UCL的MRI分级相比,升华结节中的BME是更好的症状指标。
    UNASSIGNED: The relationship between abnormalities of the ulnar collateral ligament (UCL) on magnetic resonance imaging (MRI) and elbow symptoms in baseball players remains unclear.
    UNASSIGNED: This study aimed to compare findings of the UCL on microscopic MRI between asymptomatic and symptomatic elbows in baseball players. We hypothesized that the MRI grade of UCL injuries would exhibit no correlation with medial elbow symptoms in baseball players.
    UNASSIGNED: Cross-sectional study; Level of evidence, 3.
    UNASSIGNED: The study participants were skeletally mature baseball players who underwent high-resolution microscopic MRI of the medial elbow including for medical checkups. Elbows with previous surgical treatment or traumatic UCL injuries were excluded. The patients were divided into symptomatic and asymptomatic groups. The UCL appearance on microscopic MRI was categorized into 4 grades and compared between the groups. Abnormal findings in the medial elbow including bony fragments at the medial epicondyle, osteophytes or bony fragments in the sublime tubercle, and bone marrow edema (BME) in the sublime tubercle were also evaluated.
    UNASSIGNED: A total of 426 baseball players (426 elbows) with a mean age of 20 years (range, 14-41 years) were included. The asymptomatic and symptomatic groups included 158 and 268 elbows, respectively. In the asymptomatic group, based on MRI grading of the UCL, 46 (29%) elbows were rated as grade I, 64 (41%) as grade II, 40 (25%) as grade III, and 8 (5%) as grade IV. In the symptomatic group, 75 (28%) elbows were rated as grade I, 118 (44%) as grade II, 61 (23%) as grade III, and 14 (5%) as grade IV. There was no significant difference in the MRI grades between the groups (P = .9). BME in the sublime tubercle was more frequently seen in the symptomatic group than in the asymptomatic group (P < .001).
    UNASSIGNED: There was no difference in MRI grades of the UCL between symptomatic and asymptomatic elbows in baseball players; approximately 30% of elbows demonstrated high-grade UCL injuries in both groups. BME in the sublime tubercle was more frequently seen in symptomatic elbows than in asymptomatic elbows. BME in the sublime tubercle was a better indicator of symptoms than was MRI grading of the UCL.
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  • 文章类型: Journal Article
    多项研究使用运动分析技术分析了俯仰运动学,但下肢驱动腿冲量(DLI)和驱动腿斜度(DLS)没有很好的表征。这项研究的目的是调查DLI和DLS与俯仰速度以及骨盆角速度之间的关系。树干,还有肱骨.
    增加的DLI和DLS将与俯仰速度呈正相关,并与肱骨中角速度的增加相关。树干,还有骨盆.
    回顾性病例系列。
    4级。
    来自174个投手的三维运动分析数据(年龄,17.0±1.0年;身高,1.82±0.07m;重量,包括80.0±11.3公斤)的投掷组合613个快球投球。投手投了2到5个投球,并且在音高之间收集的变量被平均并记录。使用线性回归进行统计分析,以确定DLS以及DLI与骨盆的俯仰速度和角速度之间的关联。树干,还有肱骨.
    具有较高DLI的投手与较低的投球速度相关(β=-22.32;95%CI,-32.75至-11.88,P<0.01)。除DLI和躯干运动学外,DLS和速度(β=-0.60;95%CI,-1.48至0.29,P=0.18)或DLS和DLI与旋转速度没有显着关联(β=-0.60;95%CI,-1.48至0.29,P=0.18)。
    在合并队列中,DLI与俯仰速度负相关,尽管这种关系在亚组分析中不存在。在精英投球速度较慢的投手中发现了较高的DLS,高中,和青年团体,虽然没有统计学意义。在这项研究中,没有发现DLS和任何水平的游戏之间的任何角速度之间的关联。无论比赛水平如何,都没有一致的联系。
    UNASSIGNED: Multiple studies have analyzed pitching kinematics using motion analysis technology, but lower extremity drive leg impulse (DLI) and drive leg slope (DLS) are not as well characterized. The purpose of this study was to investigate associations between DLI and DLS and pitch velocity as well as angular velocity of the pelvis, trunk, and humerus.
    UNASSIGNED: Increased DLI and DLS will be correlated positively with pitch velocity and associated with increased angular velocities in the humerus, trunk, and pelvis.
    UNASSIGNED: Retrospective case series.
    UNASSIGNED: Level 4.
    UNASSIGNED: Three-dimensional motion analyses data from 174 pitchers (age, 17.0 ± 1.0 years; height, 1.82 ± 0.07 m; weight, 80.0 ± 11.3 kg) throwing combined 613 fastball pitches were included. Pitchers threw 2 to 5 pitches, and the variables collected between pitches were averaged and recorded. Statistical analysis was performed using linear regressions to determine the association between DLS as well as DLI and pitch velocity and angular velocities of the pelvis, trunk, and humerus.
    UNASSIGNED: Pitchers with higher DLI were associated with lower pitch velocities (β = -22.32; 95% CI, -32.75 to -11.88, P < 0.01). There were no significant associations for DLS and velocity (β = -0.60; 95% CI, -1.48 to 0.29, P = 0.18) or DLS and DLI with rotational velocities except for DLI and trunk kinematics (β = -0.60; 95% CI, -1.48 to 0.29, P = 0.18).
    UNASSIGNED: In the combined cohort, DLI correlated negatively with pitch velocity, although this relationship does not exist in the subgroup analysis. Higher DLS was found in pitchers with slower pitch velocities in the elite, high school, and youth groups, although not statistically significant. No associations were found with DLS and any angular velocities between any level of play analyzed in this study, suggesting no consistent association regardless of playing level.
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  • 文章类型: Journal Article
    职业棒球运动员的受伤已经变得非常普遍。减轻伤害风险的努力集中在动力链,肩部运动,等等。目前尚不清楚握力是否与职业棒球投手的受伤风险有关。
    这项研究的目的是确定握力是否是受伤的危险因素。据推测,与握力较强的投手相比,握力较弱的投手承受肩部或肘部受伤的可能性更高。
    病例对照研究;证据水平,3.
    包括来自单个美国职棒大联盟组织的所有职业投手。在整个2022赛季的每次投球后,都测量了主要和非主要的握力。记录了整个赛季的受伤情况,并比较了肩肘受伤的投手和未受伤的投手之间的数据。
    总的来说,包括213个投手,其中53人(24.9%)在本赛季肩部或肘部受伤。所有投手的平均握力为144.0±20.8磅(65.3±9.4千克)。对于没有遭受肩部或肘部伤害的投手,平均优势臂握力为142.6±20.8磅(64.7±9.4千克),对于遭受伤害的投手,平均优势臂握力为148.2±20.9磅(67.2±9.5千克)。两组握力比较差异无统计学意义(P>.05)。此外,在整个季节中,两组间握力的变化没有显著差异.
    在一个赛季中,遭受肩部或肘部受伤的职业棒球投手与没有受伤的职业棒球投手之间的平均握力或握力变化没有显着差异。
    UNASSIGNED: Injuries in professional baseball players have become exceedingly common. Efforts to mitigate injury risk have focused on the kinetic chain, shoulder motion, and so forth. It is unclear whether grip strength is related to injury risk in professional baseball pitchers.
    UNASSIGNED: The purpose of this study was to determine if grip strength was a risk factor for injury. It was hypothesized that pitchers with weaker grip strength would have a higher likelihood of sustaining a shoulder or elbow injury compared with pitchers with stronger grip strength.
    UNASSIGNED: Case-control study; Level of evidence, 3.
    UNASSIGNED: All professional pitchers from a single Major League Baseball organization were included. Dominant and nondominant grip strength were measured after each pitching outing throughout the 2022 season. Injuries over the course of the season were recorded, and data were compared between pitchers who sustained a shoulder or elbow injury and those who did not.
    UNASSIGNED: Overall, 213 pitchers were included, of whom 53 (24.9%) sustained a shoulder or elbow injury during the season. The mean grip strength for all pitchers was 144.0 ± 20.8 lb (65.3 ± 9.4 kg). The mean dominant-arm grip strength was 142.6 ± 20.8 lb (64.7 ± 9.4 kg) for pitchers who did not sustain a shoulder or elbow injury and 148.2 ± 20.9 lb (67.2 ± 9.5 kg) for pitchers who did sustain an injury, with no significant group difference in grip strength (P > .05). Furthermore, there were no significant differences in change in grip strength over the course of the season between the groups.
    UNASSIGNED: There was no significant difference in mean grip strength or change in grip strength over the course of a single season between professional baseball pitchers who sustained a shoulder or elbow injury and those who did not.
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  • 文章类型: Journal Article
    陈,P-T,林,Y-C,Chang,H-Y,Chiu,C-H,陈,C-Y,陈,P,还有林,Y-H.肩部矫正训练计划对青少年棒球运动员肘关节投球负荷和超声形态的影响。JStrengthCondRes38(8):e440-e447,2024-我们评估了为期12周的肩部矫正训练计划对青年棒球运动员的肩部柔韧性和增强投球负荷和肘关节超声形态的影响。招募了17名受试者,并在培训计划之前和之后进行了评估。我们发现在训练之后,受试者表现出肩部内旋范围显着增加(38.9±12.9°vs.69.2±10.8°,p<0.001),外旋(91.2±14.6°vs.107.3±9.5°,p=0.004),和水平内收(21.5±8.0°vs.32.7±7.3°,p=0.002);提高了台肩内部旋转器的强度(8.7±1.6kg与9.8±2.1kg,p=0.04),外部旋转器(6.5±1.9kg与7.5±2.8kg,p=0.04),中斜方肌(12.7±2.1kgvs.14.3±2.4kg,p=0.04),和中三角肌(10.8±3.3kgvs.14.8±3.2kg,p=0.001);尺侧副韧带厚度减少(6.1±0.6mmvs.4.8±0.7mm,p=0.002)。尽管肘部扭矩和手臂速度没有实质性变化,球速显著提高(51.2±4.6mphvs.54.1±4.5mph,p<0.001)和减少的臂槽(63.8±11.9°vs.53.0±12.7°,观察到p=0.02)。我们建议应定期进行适当的矫正训练,以最大程度地减少或减轻青年棒球运动员肘部的不利软组织变化。平衡的肩部力量和柔韧性可以降低俯仰过程中的肘部内侧应力。未来的研究应考虑其他矫正训练计划在俯仰过程中对肩部或肘关节的动力学和运动学影响。
    UNASSIGNED: Chen, P-T, Lin, Y-C, Chang, H-Y, Chiu, C-H, Chen, C-Y, Chen, P, and Lin, Y-H. Effects of shoulder corrective training program on pitching loads and sonographic morphology in elbow joint in youth baseball players. J Strength Cond Res 38(8): e440-e447, 2024-We assessed the effects of a 12-week shoulder corrective training program for shoulder flexibility and strengthening on pitching loads and sonographic morphology of the elbow joints in youth baseball players. Seventeen subjects were recruited and underwent evaluations before and after the training program. We found that following training, subjects demonstrated significantly increased ranges of shoulder internal rotation (38.9 ± 12.9° vs. 69.2 ± 10.8°, p < 0.001), external rotation (91.2 ± 14.6° vs. 107.3 ± 9.5°, p = 0.004), and horizontal adduction (21.5 ± 8.0° vs. 32.7 ± 7.3°, p = 0.002); improved strength in the shoulder internal rotators (8.7 ± 1.6 kg vs. 9.8 ± 2.1 kg, p = 0.04), external rotators (6.5 ± 1.9 kg vs. 7.5 ± 2.8 kg, p = 0.04), middle trapezius (12.7 ± 2.1 kg vs. 14.3 ± 2.4 kg, p = 0.04), and middle deltoid muscles (10.8 ± 3.3 kg vs. 14.8 ± 3.2 kg, p = 0.001); and decreased thickness of the ulnar collateral ligament (6.1 ± 0.6 mm vs. 4.8 ± 0.7 mm, p = 0.002). Although there was no substantial change in elbow torque and arm speed, significantly increased ball speed (51.2 ± 4.6 mph vs. 54.1 ± 4.5 mph, p < 0.001) and decreased arm slot (63.8 ± 11.9° vs. 53.0 ± 12.7°, p = 0.02) were observed. We suggest that adequate corrective training should be performed regularly to minimize or mitigate adverse soft tissue changes at the elbow in youth baseball players. Balanced shoulder strength and flexibility may decrease medial elbow stress during pitching. Future studies should consider the kinetic and kinematic effects of other corrective training programs on the shoulder or elbow joint during pitching.
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