| 008 |
|
200428n^^^^^^^^xx^a^^^^o^^^^^|||^u^eng^d |
| 024 |
7 |
|a RC1220.S57 L43 2010_LearoydErin |2 BU-Local |
| 245 |
10 |
|a Effects of single-leg neuromuscular training on ACL risk factors in female collegiate soccer players |h [electronic resource]. |
| 260 |
|
|a Miami, Fla. : |b Barry University, |c 2010. |
| 300 |
|
|a vi, 118 leaves : |b ill., photos ; |c 28 cm |
| 490 |
|
|a Barry University Theses -- School of Human Performance and Leisure Sciences. |
| 502 |
|
|a Thesis (M.S.)--Barry University, 2010. |
| 504 |
|
|a Includes bibliographical references (leaves 67-69). |
| 506 |
|
|a Copyright Erin C. Learoyd. Permission granted to Barry University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder. |
| 520 |
3 |
|a Introduction. Non-contact anterior cruciate ligament (ACL) injuries typically occur during activities that involve cutting, pivoting, sudden deceleration, and landing from a jump, movements that are prevalent in soccer. Female soccer players, due to both intrinsic and extrinsic factors, are up to six times more likely to sustain a non-contact ACL tear. Coaches, strength and conditioning specialists, and rehabilitation specialists have built on the present body of knowledge to begin creating preventative neuromuscular training programs, with some success of reducing ACL injury risk. The purpose of this study was to compare the effects of a single-leg neuromuscular training program (NTP-SL) and a double-leg neuromuscular training program (NTP-DL) on ACL injury risk factors. Methods. Triple-hop test (THT) distance, vertical jump (VJ) height, predicted maximal back squat strength (BS 1-RM), and six kinetic and kinematic measures of a jump-landing and cut maneuver (JLC) in ten healthy female collegiate soccer players were compared before and after the six-week training period. Results. In the BS1RM, there was no significant Test x Group interaction (F(1,8) = .694, p > .05), nor was there a significant main effect for Group (F(1,8) = 1.134, p > .05). A significant main effect for Test was found (F(1,8) = 14.727, p < .05), indicating that when groups were combined, post-test 1RM was significantly higher. The VJ saw no significant Test x Group interaction (F(1,8) = 4.082, p > .05), nor was there a significant main effect for Group (F(1,8) = .030, p > .05). A significant main effect for Test was found (F(1,8) = 5.878, p < .05), indicating that when groups were combined, posttest VJ was significantly higher than the pre-test. Three separate 2 x 2 (Time x Group) MANOVAs were calculated for hip flexion angle (HFA) and knee flexion angle (KFA); knee anterior shear (KAS); and knee adduction moment (KAdM), hip abduction moment (HAbM), and hip external rotation moment (HERM). Each variable was examined at three different periods of stance: initial contact (IC), peak vertical ground reaction force (PVGRF), and 25% of stance phase (QS). For HFA and KFA, no significant Test x Group interaction or main effect was found for Test or Group. No significant Test x Group interaction or main effect was found for Test or Group for KAS. For KAdM and HAbM, no significant Test x Group interaction or main effect was found for Test or Group. There was no significant Test x Group interaction or main effect for Group for HERM during a side-cut to the right, nor was there a significant Test x Group interaction or main effect for Test or Group for HERM during a side-cut to the left. The main effect for Test for HERM during a side-cut to the right approached significance (F(3,6) = .747, p = .050). Follow-up univariate tests did not show significant effects for Test at any particular phase of stance (IC: F(3,6) = .363, p > .05; PVGRF: F(3,6) = .433, p > .05; QS: F(3,6) = 2.202, p > .05). Discussion. Single-leg training did not produce strength or power performance deficits. However, neither the NTP-SL nor NTP-DL groups experienced significant changes in THT distance or any biomechanical ACL risk factor. This is similar to previous research which showed that 9 weeks of training with resistance bands did not alter at-risk biomechanics in female recreational athletes (Herman et al., 2008). Further research is needed to understand the role of strength training in ACL prevention and to identify reliable training approaches that consistently improve performance and lower injury risk. |
| 533 |
|
|a Electronic reproduction. |c Barry University, |d 2020. |f (Barry University Digital Collections) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
| 535 |
1 |
|a Barry University Archives and Special Collections. |
| 650 |
0 |
|a Soccer injuries |x Prevention. |
| 650 |
0 |
|a Anterior cruciate ligament |x Wounds and injuries. |
| 830 |
0 |
|a Barry University Digital Collections. |
| 830 |
0 |
|a Theses and Dissertations. |
| 852 |
|
|a BUDC |c Theses and Dissertations |
| 856 |
40 |
|u http://sobekcmsrv.barrynet.barry.edu/AA00001622/00001 |y Click here for full text |
| 992 |
04 |
|a https:/budc.barry.edu/content/AA/00/00/16/22/00001/RC1220_S57 L43 2010_LearoydErinthm.jpg |
| 997 |
|
|a Theses and Dissertations |
