Factors Associated with Medial Elbow Torque Measured Using a Wearable Sensor in Junior High School Baseball Pitchers

被引：1

作者：

Yoshikawa, Tomoya ^{[1
]}

Inui, Atsuyuki ^{[1
]}

Mifune, Yutaka ^{[1
]}

Nishimoto, Hanako ^{[1
]}

Yamaura, Kohei ^{[1
]}

Mukohara, Shintaro ^{[1
]}

Shinohara, Issei ^{[1
]}

Kato, Tatsuo ^{[1
]}

Furukawa, Takahiro ^{[1
]}

Kusunose, Masaya ^{[1
]}

Tanaka, Shuya ^{[1
]}

Hoshino, Yuichi ^{[1
]}

Matsushita, Takehiko ^{[1
]}

Kuroda, Ryosuke ^{[1
]}

机构：

[1] Kobe Univ, Dept Orthopaed Surg, Grad Sch Med, 7-5-1 Kusunoki Cho,Chuo Ku, Kobe 6500017, Japan

来源：

APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 19期

关键词：

baseball pitchers; elbow valgus torque; junior high school; medial elbow torque; shoulder horizontal adduction; wearable sensor; POSTERIOR SHOULDER TIGHTNESS; COLLATERAL LIGAMENT RECONSTRUCTION; INTERNAL-ROTATION; MOTION DEFICITS; YOUTH; RANGE; INJURIES; PLAYERS; MECHANICS; RISK;

D O I：

10.3390/app131910573

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

There are no reports investigating the relationship between shoulder range of motion (ROM) and pitching elbow torque in junior high school pitchers. Therefore, we aimed to evaluate the factors associated with medial elbow torque in this population. Sixty-three junior high school baseball pitchers were recruited for this study. The participants completed a questionnaire and passive ROM measurements of shoulder abduction and horizontal adduction. All pitchers pitched three fastballs at maximum effort while wearing a wireless sensor recording pitching mechanics and elbow valgus torque for each pitch. Age (r = 0.65, p < 0.001), height (r = 0.83, p < 0.001), body weight (r = 0.82, p < 0.001), BMI (r = 0.60, p < 0.001), and ball velocity (r = 0.80, p < 0.001) were significantly positively correlated with elbow valgus torque. Participants were divided into two groups based on elbow valgus torque, >30 (high torque [HT]) and <30 N center dot m (low torque [LT]). Age, height, body weight, BMI, and ball velocity were significantly higher in the HT group than in the LT group. The difference between dominant and non-dominant shoulder horizontal adduction ROM was 5.3 +/- 9.3(degrees )and 1.0 +/- 6.4(degrees) in the HT and LT groups, respectively, which was also significantly different. Ball velocity, age, larger physique, and increased restriction of the dominant shoulder's horizontal adduction ROM were associated with higher medial elbow torque in junior high school pitchers. This suggests that improving the dominant shoulder's horizontal adduction ROM contributes to preventing elbow injuries.

引用

页数：12

共 45 条

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