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Am J Sports Med. 2018 Mar;46(4):852-861. doi: 10.1177/0363546517749474. Epub 2018 Jan 23.

Effect of Hip-Focused Injury Prevention Training for Anterior Cruciate Ligament Injury Reduction in Female Basketball Players: A 12-Year Prospective Intervention Study.

Author information

1
Graduate School of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan.
2
Department of Rehabilitation, Nippon Koukan Hospital, Kawasaki, Kanagawa, Japan.
3
The Micheli Center for Sports Injury Prevention, Division of Sports Medicine, Department of Orthopedics, Boston Children's Hospital, Waltham, Massachusetts, USA.
4
Department of Orthopaedics, Harvard Medical School, Boston, Massachusetts, USA.
5
Department of Orthopedic Surgery, Nippon Koukan Hospital, Kawasaki, Kanagawa, Japan.
6
Department of Orthopedic Surgery, Showa University School of Medicine, Tokyo, Japan.
7
Department of Rehabilitation, Aobasawai Hospital, Yokohama, Kanagawa, Japan.
8
Department of Rehabilitation, Ito shimin Hospital, Ito, Shizuoka, Japan.
9
Department of Rehabilitation, Ichihara Hospital, Tsukuba, Ibaraki, Japan.
10
Faculty of Sport Sciences, Waseda University, Tokorozawa, Saitama, Japan.

Abstract

BACKGROUND:

Programs to prevent anterior cruciate ligament (ACL) injuries in female basketball players are scarce. Also, ACL injury prevention training that focuses on hip joint function has not been reported.

PURPOSE:

To determine the effectiveness of a hip-focused ACL injury prevention program in female basketball players.

STUDY DESIGN:

Cohort study; Level of evidence, 2.

METHODS:

A prospective intervention study was conducted for 12 years. Incidence rates of ACL injuries were collected in the first 4 years (observation period) from college female basketball players. After the observation period, a hip-focused ACL injury prevention program was implemented for 8 years (intervention period). A total of 309 players (mean ± SD age, 19.6 ± 1.2 years; height, 163.7 ± 5.6 cm; weight, 59.1 ± 5.1 kg; body mass index, 22.0 ± 1.4) were tracked in the observation period and compared with 448 players (age, 19.6 ± 1.1 years; height, 162.6 ± 5.8 cm; weight, 58.0 ± 5.7 kg; body mass index, 21.9 ± 1.5) who participated in the intervention period. Athlete-exposures (AEs), ACL numbers and mechanisms of injury (MOIs), relative risk (RR), absolute risk reduction (ARR), numbers needed to treat (NNT), and compliance were analyzed.

RESULTS:

There were 16 ACL injuries (13 noncontact MOIs) in the 4-year observation period, whereas 9 ACL injuries (8 noncontact MOIs) were recorded in the 8-year intervention period. The overall ACL injury incidence was 0.25/1000 AEs in the 4-year observation period compared with 0.10/1000 AEs in the 8-year intervention period, respectively. Compared with the 4-year observation period, significant RR reduction was observed (0.38; 95% CI, 0.17-0.87; P = .017) with ARR and NNT of 0.032 (95% CI, 0.027-0.037) and 31.6 (95% CI, 27.1-37.7), respectively, in the 8-year intervention period. The noncontact ACL injury incidence was 0.21 per 1000 AEs during the 4-year observation period compared with 0.08/1000 AEs in the 8-year intervention period, which also showed significant RR reduction (0.37; 95% CI, 0.15-0.92; P = .026), with ARR and NNT of 0.024 (95% CI, 0.020-0.029) and 41.3 (95% CI, 34.6-51.3), respectively. The mean compliance rate during the intervention periods (8 years) was 89%.

CONCLUSION:

A hip-focused injury prevention program demonstrated significant reduction in the incidence of ACL injury in female collegiate basketball players.

KEYWORDS:

ACL; adherence; basketball; female athletes; hip; preventive neuromuscular training

PMID:
29360406
DOI:
10.1177/0363546517749474

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