Record:   Prev Next
作者 Trowbridge, Cynthia A
書名 The effects of strength and plyometric training on joint position, joint moments, and joint stiffness at the knee
國際標準書號 0496831569
book jacket
說明 188 p
附註 Source: Dissertation Abstracts International, Volume: 65-06, Section: B, page: 2902
Adviser: Shane Schulthies
Thesis (Ph.D.)--Brigham Young University, 2004
Context. Female athletes have experienced a 2 to 6 times greater chance of non-contact anterior cruciate ligament (ACL) injury. Previous research has indicated that specific prevention training programs can reduce the number of female knee injuries; however, we do not know how training programs affect the specific mechanics of different sport activities. Objective . To determine the effects of plyometric and strength training programs on the kinematics and kinetics of the knee joint throughout the weight acceptance phase of running, cutting, single-leg hopping, and drop landing. Design. A 2 x 3 x 3 x 6 factorial design was used for this randomized controlled trial. The factors were time (pretest and posttest), training program (control, plyometric training, and traditional strength training), replication (three trials for each condition), and condition (straight ahead run, deceleration run, cut 45°, deceleration cut 45°, drop landing, and single-leg hop). Setting. All kinetic and kinematic data were collected in the University Human Performance Research Center. Participants. Thirty-six healthy female college-age students with a decreased ability to maintain knee joint stabilization when performing functional tasks. Interventions . Separate 6-week plyometric and strength training programs. Main outcome measures. Average joint angles and internal joint moments in the sagittal, frontal, and transverse planes during the weight acceptance phase of stance. Results. The plyometric group increased their average flexion angle up to 8° for both the drop landing and single-leg hop when compared to the control (p ≤ 0.0007) and strength (p ≤ 0.0006) groups. There were varied changes for the joint moments in all planes with the plyometric group showing the most improvements. Conclusions. These data support the role of plyometric training in improving landing techniques for females
School code: 0022
DDC
Host Item Dissertation Abstracts International 65-06B
主題 Health Sciences, Recreation
Health Sciences, Rehabilitation and Therapy
0575
0382
Alt Author Brigham Young University
Record:   Prev Next