We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The Relationship of Open- and Closed-Kinetic-Chain Rate of Force Development With Jump Performance Following Anterior Cruciate Ligament Reconstruction.
- Authors
Graham, Megan C.; Reeves, Kelsey A.; Janatova, Tereza; Noehren, Brian
- Abstract
Purpose: To determine between-limbs differences in isometric rate of force development (RFD) measured during open- (OKC) and closed-kinetic-chain (CKC) strength testing and establish which method had the strongest relationship to single-leg vertical-jump performance and knee mechanics after anterior cruciate ligament (ACL) reconstruction. Methods: Subjects (n = 19) 1 to 5 years from ACL reconstruction performed isometric knee extensions (OKC), unilateral isometric midthigh pulls (CKC), and single-leg vertical jumps on the ACL-involved and -noninvolved limbs. Between-limbs differences were assessed using paired t tests, and the relationship between RFD, jump performance, and knee mechanics was assessed using correlation coefficients (r; P ≤.05). Results: There were significant between-limbs differences in OKC RFD (P =.008, d = −0.69) but not CKC RFD. OKC RFD in the ACL-involved limb had a strong association with jump height (r =.64, P =.003), knee-joint power (r =.72, P <.001), and peak knee-flexion angle (r =.72, P =.001). CKC RFD in the ACL-involved limb had a strong association with jump height (r =.65, P =.004) and knee-joint power (r =.67, P =.002) but not peak knee-flexion angle (r =.40, P =.09). Conclusions: While both OKC and CKC RFD were strongly related to jump performance and knee-joint power, OKC RFD was able to detect between-limbs RFD asymmetries and was strongly related to knee-joint kinematics. These findings indicate that isometric knee extension may be optimal for assessing RFD after ACL reconstruction.
- Subjects
KNEE physiology; EXERCISE physiology; BIOMECHANICS; ANTERIOR cruciate ligament surgery; T-test (Statistics); EXERCISE therapy; EXERCISE intensity; TORQUE; MUSCLE strength; JUMPING; BODY movement; RANGE of motion of joints
- Publication
International Journal of Sports Physiology & Performance, 2024, Vol 19, Issue 6, p585
- ISSN
1555-0265
- Publication type
Article
- DOI
10.1123/ijspp.2023-0361