Herman, D C; Barth, J T
Drop-jump landing varies with baseline neurocognition: Implications for anterior cruciate ligament injury risk and prevention Journal Article
In: American Journal of Sports Medicine, vol. 44, no. 9, pp. 2347–2353, 2016.
Abstract | Links | BibTeX | Tags: ACL, Biomechanics, Injury prevention, Motion analysis
@article{Herman2016,
title = {Drop-jump landing varies with baseline neurocognition: Implications for anterior cruciate ligament injury risk and prevention},
author = {Herman, D C and Barth, J T},
doi = {10.1177/0363546516657338},
year = {2016},
date = {2016-01-01},
journal = {American Journal of Sports Medicine},
volume = {44},
number = {9},
pages = {2347--2353},
abstract = {Background: Neurocognitive status may be a risk factor for anterior cruciate ligament (ACL) injury. Neurocognitive domains such as visual attention, processing speed/reaction time, and dual-tasking may influence ACL injury risk via alterations to neuromuscular performance during athletic tasks. However, the relationship between neurocognition and performance during athletic tasks is not yet established. Hypothesis: Athletes with low baseline neurocognitive scores will demonstrate poorer jump landing performance compared with athletes with high baseline neurocognitive score. Study Design: Controlled laboratory study. Methods: Neurocognitive performance was measured using the Concussion Resolution Index (CRI). Three-dimensional kinematic and kinetic data of the dominant limb were collected for 37 recreational athletes while performing an unanticipated jump-landing task. Healthy, nonconcussed subjects were screened using a computer-based neurocognitive test into a high performers (HP; n = 20; average CRI percentile, 78th) and a low performers (LP; n = 17; average CRI percentile, 41st) group. The task consisted of a forward jump onto a force plate with an immediate rebound to a second target that was assigned 250 milliseconds before landing on the force plate. Kinematic and kinetic data were obtained during the first jump landing. Results: The LP group demonstrated significantly altered neuromuscular performance during the landing phase while completing the jump-landing task, including significantly increased peak vertical ground-reaction force (mean ± SD of LP vs HP: 1.81 ± 0.53 vs 1.38 ± 0.37 body weight [BW]; P \<.01), peak anterior tibial shear force (0.91 ± 0.17 vs 0.72 ± 0.22 BW; P \<.01), knee abduction moment (0.47 ± 0.56 vs 0.03 ± 0.64 BW × body height; P =.03), and knee abduction angle (6.1° ± 4.7° vs 1.3° ± 5.6°; P =.03), as well as decreased trunk flexion angle (9.6° ± 9.6° vs 16.4° ± 11.2°; P \<.01). Conclusion: Healthy athletes with lower baseline neurocognitive performance generate knee kinematic and kinetic patterns that are linked to ACL injury. Clinical Relevance: Neurocognitive testing using the CRI may be useful for identification of athletes at elevated risk for future ACL injury. © American Orthopaedic Society for Sports Medicine.},
keywords = {ACL, Biomechanics, Injury prevention, Motion analysis},
pubstate = {published},
tppubtype = {article}
}
Herman, D C; Barth, J T
Drop-jump landing varies with baseline neurocognition: Implications for anterior cruciate ligament injury risk and prevention Journal Article
In: American Journal of Sports Medicine, vol. 44, no. 9, pp. 2347–2353, 2016.
@article{Herman2016,
title = {Drop-jump landing varies with baseline neurocognition: Implications for anterior cruciate ligament injury risk and prevention},
author = {Herman, D C and Barth, J T},
doi = {10.1177/0363546516657338},
year = {2016},
date = {2016-01-01},
journal = {American Journal of Sports Medicine},
volume = {44},
number = {9},
pages = {2347--2353},
abstract = {Background: Neurocognitive status may be a risk factor for anterior cruciate ligament (ACL) injury. Neurocognitive domains such as visual attention, processing speed/reaction time, and dual-tasking may influence ACL injury risk via alterations to neuromuscular performance during athletic tasks. However, the relationship between neurocognition and performance during athletic tasks is not yet established. Hypothesis: Athletes with low baseline neurocognitive scores will demonstrate poorer jump landing performance compared with athletes with high baseline neurocognitive score. Study Design: Controlled laboratory study. Methods: Neurocognitive performance was measured using the Concussion Resolution Index (CRI). Three-dimensional kinematic and kinetic data of the dominant limb were collected for 37 recreational athletes while performing an unanticipated jump-landing task. Healthy, nonconcussed subjects were screened using a computer-based neurocognitive test into a high performers (HP; n = 20; average CRI percentile, 78th) and a low performers (LP; n = 17; average CRI percentile, 41st) group. The task consisted of a forward jump onto a force plate with an immediate rebound to a second target that was assigned 250 milliseconds before landing on the force plate. Kinematic and kinetic data were obtained during the first jump landing. Results: The LP group demonstrated significantly altered neuromuscular performance during the landing phase while completing the jump-landing task, including significantly increased peak vertical ground-reaction force (mean ± SD of LP vs HP: 1.81 ± 0.53 vs 1.38 ± 0.37 body weight [BW]; P \<.01), peak anterior tibial shear force (0.91 ± 0.17 vs 0.72 ± 0.22 BW; P \<.01), knee abduction moment (0.47 ± 0.56 vs 0.03 ± 0.64 BW × body height; P =.03), and knee abduction angle (6.1° ± 4.7° vs 1.3° ± 5.6°; P =.03), as well as decreased trunk flexion angle (9.6° ± 9.6° vs 16.4° ± 11.2°; P \<.01). Conclusion: Healthy athletes with lower baseline neurocognitive performance generate knee kinematic and kinetic patterns that are linked to ACL injury. Clinical Relevance: Neurocognitive testing using the CRI may be useful for identification of athletes at elevated risk for future ACL injury. © American Orthopaedic Society for Sports Medicine.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Herman, D C; Barth, J T
Drop-jump landing varies with baseline neurocognition: Implications for anterior cruciate ligament injury risk and prevention Journal Article
In: American Journal of Sports Medicine, vol. 44, no. 9, pp. 2347–2353, 2016.
Abstract | Links | BibTeX | Tags: ACL, Biomechanics, Injury prevention, Motion analysis
@article{Herman2016,
title = {Drop-jump landing varies with baseline neurocognition: Implications for anterior cruciate ligament injury risk and prevention},
author = {Herman, D C and Barth, J T},
doi = {10.1177/0363546516657338},
year = {2016},
date = {2016-01-01},
journal = {American Journal of Sports Medicine},
volume = {44},
number = {9},
pages = {2347--2353},
abstract = {Background: Neurocognitive status may be a risk factor for anterior cruciate ligament (ACL) injury. Neurocognitive domains such as visual attention, processing speed/reaction time, and dual-tasking may influence ACL injury risk via alterations to neuromuscular performance during athletic tasks. However, the relationship between neurocognition and performance during athletic tasks is not yet established. Hypothesis: Athletes with low baseline neurocognitive scores will demonstrate poorer jump landing performance compared with athletes with high baseline neurocognitive score. Study Design: Controlled laboratory study. Methods: Neurocognitive performance was measured using the Concussion Resolution Index (CRI). Three-dimensional kinematic and kinetic data of the dominant limb were collected for 37 recreational athletes while performing an unanticipated jump-landing task. Healthy, nonconcussed subjects were screened using a computer-based neurocognitive test into a high performers (HP; n = 20; average CRI percentile, 78th) and a low performers (LP; n = 17; average CRI percentile, 41st) group. The task consisted of a forward jump onto a force plate with an immediate rebound to a second target that was assigned 250 milliseconds before landing on the force plate. Kinematic and kinetic data were obtained during the first jump landing. Results: The LP group demonstrated significantly altered neuromuscular performance during the landing phase while completing the jump-landing task, including significantly increased peak vertical ground-reaction force (mean ± SD of LP vs HP: 1.81 ± 0.53 vs 1.38 ± 0.37 body weight [BW]; P \<.01), peak anterior tibial shear force (0.91 ± 0.17 vs 0.72 ± 0.22 BW; P \<.01), knee abduction moment (0.47 ± 0.56 vs 0.03 ± 0.64 BW × body height; P =.03), and knee abduction angle (6.1° ± 4.7° vs 1.3° ± 5.6°; P =.03), as well as decreased trunk flexion angle (9.6° ± 9.6° vs 16.4° ± 11.2°; P \<.01). Conclusion: Healthy athletes with lower baseline neurocognitive performance generate knee kinematic and kinetic patterns that are linked to ACL injury. Clinical Relevance: Neurocognitive testing using the CRI may be useful for identification of athletes at elevated risk for future ACL injury. © American Orthopaedic Society for Sports Medicine.},
keywords = {ACL, Biomechanics, Injury prevention, Motion analysis},
pubstate = {published},
tppubtype = {article}
}