Hip, Trunk, and Shoulder Rotational Range of Motion in Healthy Japanese Youth and High-school Baseball Pitchers
| Autor: | Yuya Watanabe, Yoshikazu Azuma, Shuhei Morifusa, Kazuya Seo, Tomoyuki Matsui, Tetsuya Miyazaki, Noriyuki Kida, Yoshihiro Kai, Yosuke Yamada, Yoshikazu Kida, Toru Morihara, Machiko Hiramoto |
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| Rok vydání: | 2019 |
| Předmět: |
musculoskeletal diseases
medicine.medical_specialty Rehabilitation business.industry Shoulders medicine.medical_treatment education General Medicine Trunk Physical medicine and rehabilitation External rotation Age groups Medicine Original Article Dominant side business Range of motion human activities Throwing |
| Zdroj: | Prog Rehabil Med |
| ISSN: | 2432-1354 |
| DOI: | 10.2490/prm.20190009 |
| Popis: | Objective The rotational range of motion (ROM) in the upper extremities, trunk, and lower extremities is important for throwing motion. However, unlike for the shoulders, the differences relating to age and throwing-side in trunk and lower extremity ROMs in baseball pitchers are unknown. This study examined the effects of age and dominance on the ROMs of the trunk and upper and lower extremities. Methods The study included 356 young baseball pitchers aged 9-17 years who participated in off-season baseball camps. The subjects comprised 155 youth pitchers (aged 9-14 years) and 201 high-school pitchers (aged 15-17 years) who were able to throw at full force without pain. The neck, shoulder, trunk, and hip rotational ROMs on the dominant and non-dominant side were measured by well-trained physical therapists. The differences between throwing sides and between age groups were examined using two-way analysis of variance. Results Shoulder external rotation on the dominant side was greater than that on the non-dominant side. Shoulder external and internal rotational ROMs were maintained regardless of age, whereas the trunk rotational ROM significantly increased with age. Conclusions The effects of age and dominance on ROMs of the neck, trunk, and upper and lower extremities in Japanese youth and high-school baseball pitchers were clarified. These data could be used as a specific reference and as target values for the rehabilitation of throwing injuries in young athletes. |
| Databáze: | OpenAIRE |
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