著者

大垣 亮 大竹 源人 中根 聡子 小笹 由希子 菅野 陽介 村上 大記 谷川 聡 竹村 雅裕

出版者

一般社団法人 日本アスレティックトレーニング学会

雑誌

日本アスレティックトレーニング学会誌 (ISSN:24326623)

巻号頁・発行日

vol.5, no.2, pp.123-132, 2020-04-30 (Released:2020-06-05)

参考文献数

30

---

本研究は,男子大学生ラグビー選手を対象に,肉離れの発生率,重症度,外傷負担,発生要因について分析することを目的とした.男子大学生ラグビー選手113名を対象に,2017年から2018年の2年間に発生した肉離れを記録した.肉離れの発生率は,練習時(0.66/1000 player hours)よりも試合時(13.38/1000 player hours)で有意に高かった.重症度は試合時と練習時で差はなかったが,外傷負担は試合時が282.5 (日/1000 player hours)で練習時の約15倍であった.肉離れの38.5%はランニングで発生したが,次いでラックが26.9%でコンタクトプレーでも発生していた.また,肉離れの既往歴を有する選手は発生リスクが4.5倍であった.若年層からの肉離れの予防と再発予防は,チームの競技時間損失の軽減に貢献すると考えられた.

著者

大垣 亮 竹村 雅裕 岩井 浩一 宮川 俊平

出版者

一般社団法人 日本体育学会

雑誌

体育学研究 (ISSN:04846710)

巻号頁・発行日

vol.60, no.2, pp.807-814, 2015 (Released:2015-12-18)

参考文献数

25

---

This prospective cohort study examined the associations of shoulder dislocations, instability or rotator cuff injuries in collegiate rugby union players with potential risk factors recognized in preseason medical screening examinations. The study subjects were 69 elite rugby players from one university rugby club. Basic demographics, injury experience and current physical findings were assessed, and shoulder injuries sustained during 2 playing seasons were recorded. Risk factors for shoulder injuries were determined using a logistic regression model. Fifteen players sustained shoulder injuries during the 2 seasons. A history of injury (OR, 6.56; 95%CI, 2.04—20.98; p=0.00), a positive result in the load and shift (LAS) test (OR, 2.55; 95%CI, 0.92—7.06; p=0.07) and the internal/external rotational (IR/ER) muscle strength ratio (OR, 1.39; 95%CI, 1.08—1.77; p=0.00) were associated with shoulder injuries. A history of injury, a positive LAS test result, and the IR/ER muscle strength ratio are important risk factors for injury in collegiate rugby players.

著者

大垣 亮 金 賢宰 小倉 彩音 中川 雄太 嶋崎 達也 竹村 雅裕

出版者

日本運動疫学会

雑誌

運動疫学研究 (ISSN:13475827)

巻号頁・発行日

pp.2303, (Released:2023-09-30)

---

目的:本邦のラグビー競技では2022年8月に脳振盪後の段階的競技復帰(Graduated Return to Play,以下GRTP)プロトコルが改訂された。本研究は男子大学生ラグビー選手を対象に外傷・障害の発生状況を調査し,脳振盪受傷後のGRTPプロトコル改訂前後での脳振盪を含む外傷・障害の発生状況を比較することを目的とした。 方法:1チームに所属する男性の大学生ラグビー選手101名を対象に,GRTPプロトコル改訂前(2021年9月から12月)とGRTPプロトコル改訂後(2022年9月から12月)を調査期間として,脳振盪を含む全ての外傷・障害の発生件数,脳振盪受傷後から競技復帰に要した日数,脳振盪の再発件数を記録した。ラグビーの試合および練習での曝露時間を計算し,1000時間当たりの発生率(件/1000 player-hours: 以下,件/1000 h),95%信頼区間(95% CI: confidence interval),Rate Ratioを計算した。 結果:調査期間において146件の外傷・障害が発生した。全外傷・障害の発生率はGRTP改訂前(8.9件/1000 h; 95% CI, 6.9 – 10.9)と比べて,GRTP改訂後(6.2件/1000 h; 95% CI, 4.7 – 7.6)で有意に低かった(Rate Ratio = 0.67; 95% CI, 0.48 – 0.92)。脳振盪の発生率はGRTP改訂前(1.7件/1000 h; 95% CI, 0.8 – 2.6) と比べて,GRTP改訂後(0.7件/1000 h; 95% CI, 0.2 – 1.2)で有意に低かった(Rate Ratio = 0.41; 95% CI, 0.18 – 0.92)。脳振盪の再発の割合はGRTPプロトコル改訂前が18.7%であったのに対し,改訂後は0%であった。 結論:男子大学生ラグビー選手において脳振盪後の段階的競技復帰プロトコル改訂前後での外傷・障害の発生状況を調査した結果,脳振盪および外傷・障害の発生率の低下が観察された。

著者

吉田 一也 小﨑 恵生 森 翔也 竹村 雅裕

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.72, no.3, pp.243-251, 2023-06-01 (Released:2023-05-10)

参考文献数

30

---

Previous study reported that baseball pitchers had a decreased shoulder internal rotation (IR) range of motion after pitching. However, whether the decreased range of motion associated with pitching is caused by tightness of the posterior shoulder has not been clarified yet. The joint stiffness in the passive torque can be compared with posterior shoulder tightness before and after pitching. Hence, this study aimed to compare shoulder IR stiffness based on passive torque before and after pitching in baseball pitcher. Eleven health male collage baseball pitchers were recruited. Passive torque during IR (max IR, peak torque and stiffness) of dominant and non-dominant arms was measured using an isokinetic dynamometer. Measurements were taken before, after, and post 24 hours after pitching (105 pitches). It was observed that after pitching, max IR and peak torque were significantly decreased compared to those before pitching. However, there was no difference in the stiffness of passive torque among three measurements. In conclusion, healthy college baseball pitchers have a decreased IR range of motion after pitching. However, this result is not due to posterior shoulder tissue tightness, but because of altered stretch tolerance.

著者

綾田 練 白木 仁 福田 崇 竹村 雅裕 向井 直樹 宮川 俊平

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.56, no.1, pp.125-130, 2007-02-01 (Released:2007-05-15)

参考文献数

9

被引用文献数

2 3

---

The purpose of this study was to investigate the pathologic changes of jumper's knee before and after jumping and effects of icing after jumping. Sixteen healthy college students and sixteen collegiate volleyball players with jumper's knee were divided into two groups by eight, without icing group and with icing group after jumping exercise. Without icing groups rested for 20 minutes, while with icing groups were treated with ice for 20 minutes after eighty times of jumping. Signal to noise ratio (SNR) and sectional area of patellar tendon with Magnetic Resonance Imaging and the tenderness of patellar tendon with visual analog scale were measured before and after exercise, following with or without icing and 24 and 48 hours later from the treatment. In jumper's knee group, significant increase was found in the SNR, sectional area of patellar tendon, and tenderness of patellar tendon after exercise compared to before exercise. In addition, in jumper's knee with icing group, significant decrease was found in the SNR, sectional area of patellar tendon after icing and 24 and 48 hours after icing, and the tenderness of patellar tendon after icing compared to after exercise. These results suggested that icing was an effective treatment for jumper's knee after exercise.

著者

小笠原 一生 宮永 豊 白木 仁 向井 直樹 竹村 雅裕 八十島 崇 宮川 俊平

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.55, no.4, pp.403-412, 2006-08-01 (Released:2007-05-15)

参考文献数

29

被引用文献数

1

---

The higher anterior cruciate ligament (ACL) injury rate of females is one of the most sever athletic-related problems today. The purpose of this study is to compare the lower extremity kinematics between male and female during single leg landing.Six male and four female healthy subjects participated in this study. They jumped from a 32 cm high box and landed with the dominant leg. The landing action was filmed with three video cameras. The knee flexion, knee valgus/varus, and hip adduction/abduction angle and angle velocity were calculated.In female subjects, the knee flexion angle and hip adduction angle were greater compared to males. Also, the knee valgus velocity and hip adduction velocity were higher in females.Our results suggest that knee valgus kinematics may be related to hip adduction. It is important to evaluate hip kinematics when considering knee kinematics to prevent knee ligament injuries.

著者

大垣 亮 竹村 雅裕 岩井 浩一 宮本 芳明 芋生 祥之 永井 智 宮川 俊平

出版者

一般社団法人日本体力医学会

雑誌

体力科学 (ISSN:0039906X)

巻号頁・発行日

vol.63, no.1, pp.189-196, 2014

被引用文献数

1

---

To examine risk factors for shoulder injuries with or without history of the injuries using the stratification analysis for collegiate rugby players. 71 elite rugby players from one university rugby club joined in the preseason medical screening related to their shoulder joints, including basic demographics, history of injuries, and physical findings at that time. Subsequently, the occurrence of shoulder injuries was recorded during four playing seasons. Analysis was stratified with or without history of the injuries; player without the past history of injury, 47 players; player with the past history of injury, 24 players. As a result of all players with the past history, 13 players sustained the shoulder injuries. Internal rotational range of motion [IR ROM] (OR, 1.5; 95%CI, 1.13-1.96; p=0.004), external rotational range of motion [ER ROM] (OR, 1.9; 95%CI, 1.21-2.87; p=0.005), horizontal flexion range of motion [HF ROM] (OR, 1.3; 95%CI, 1.03-1.64; p=0.025), IR muscle strength (OR, 0.4; 95%CI, 0.20-0.65; p=0.001) and rugby experience (OR, 1.2; 95%CI, 1.02-1.46; p=0.032) were associated with the shoulder injuries. On the other hand, 10 players sustained injuries of the players without the past history of injury. IR muscle strength (OR, 0.3; 95%CI, 0.11-0.72; p=0.008) and rugby experience (OR, 1.4; 95%CI, 1.11-1.66; p=0.003) were associated with the shoulder injuries. This study clearly showed that IR, ER, HF ROM, IR muscle strength and rugby experience were important initial risk factors for shoulder injuries. Moreover, IR muscle strength and rugby experience were important recurrence risk factors for shoulder injuries.

著者

芋生 祥之 竹村 雅裕 宮川 俊平 向井 直樹 白木 仁

出版者

日本体力医学会

雑誌

体力科學 (ISSN:0039906X)

巻号頁・発行日

vol.55, no.6, 2006-12-01