J. Troy Blackburn
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View article: Tibiofemoral Joint Contact Force Profiles of Pediatric Patients After Anterior Cruciate Ligament Reconstruction
Tibiofemoral Joint Contact Force Profiles of Pediatric Patients After Anterior Cruciate Ligament Reconstruction Open
Background: Incidence rates of pediatric anterior cruciate ligament (ACL) injuries and ACL reconstruction (ACLR) are increasing. In adult patients with ACLR, limb-level loading profiles are less dynamic compared with uninjured controls (ie…
View article: Peak Vertical Ground Reaction Force Modifies Gait Biomechanics Bilaterally Following ACL Reconstruction: A Randomized Experiment
Peak Vertical Ground Reaction Force Modifies Gait Biomechanics Bilaterally Following ACL Reconstruction: A Randomized Experiment Open
Vertical ground reaction force (vGRF) is a promising target for modifying aberrant gait biomechanics in individuals post‐anterior cruciate ligament reconstruction (ACLR). However, an adequate sample size and arandomized, mechanistic study …
View article: Aberrant Gait Biomechanics Linked to Cartilage Changes After ACL Reconstruction in Those With High Body Mass Index
Aberrant Gait Biomechanics Linked to Cartilage Changes After ACL Reconstruction in Those With High Body Mass Index Open
A history of anterior cruciate ligament reconstruction (ACLR) and high body mass index (BMI) are strong risk factors for incident knee osteoarthritis. Limited research has evaluated the interaction between ACLR and high BMI on limb‐level l…
View article: Bilateral waveform analysis of gait biomechanics presurgery to 12 months following ACL reconstruction compared to controls
Bilateral waveform analysis of gait biomechanics presurgery to 12 months following ACL reconstruction compared to controls Open
The purpose of this study was to compare gait biomechanics between limbs and to matched uninjured controls (i.e., sex, age, and body mass index) preoperatively and at 2, 4, 6, and 12 months following primary unilateral anterior cruciate li…
View article: Bilateral waveform analysis of gait biomechanics presurgery to 12 months following ACL reconstruction compared to controls
Bilateral waveform analysis of gait biomechanics presurgery to 12 months following ACL reconstruction compared to controls Open
The purpose of this study was to compare gait biomechanics between limbs and to matched uninjured controls (i.e., sex, age, and body mass index) preoperatively and at 2, 4, 6, and 12 months following primary unilateral anterior cruciate li…
View article: Quadriceps Strength Does Not Associate With Gait Adaptation Ability in Individuals With Anterior Cruciate Ligament Reconstruction
Quadriceps Strength Does Not Associate With Gait Adaptation Ability in Individuals With Anterior Cruciate Ligament Reconstruction Open
Context Postoperative muscle weakness contributes to the development of aberrant gait biomechanics that persist after traditional anterior cruciate ligament reconstruction (ACLR). However, it is unknown if quadriceps weakness impedes the a…
View article: Early Gait Biomechanics Linked to Daily Steps Following Anterior Cruciate Ligament Reconstruction.
Early Gait Biomechanics Linked to Daily Steps Following Anterior Cruciate Ligament Reconstruction. Open
CONTEXT: Gait biomechanics and daily steps are important aspects of knee joint loading that change following anterior cruciate ligament reconstruction (ACLR). Understanding their relationship during the first 6 months post-ACLR could help …
View article: Plantar massage or ankle mobilization do not alter gait biomechanics in those with chronic ankle instability: a randomized controlled trial
Plantar massage or ankle mobilization do not alter gait biomechanics in those with chronic ankle instability: a randomized controlled trial Open
The findings suggest that two-week joint mobilization and plantar massage interventions do not significantly alter gait biomechanics in individuals with CAI. These results support the need for gait-specific interventions to modify biomecha…
View article: An Acute Bout of Whole-Body Vibration Does Not Improve Jumping Performance in Those With Anterior Cruciate Ligament Reconstruction
An Acute Bout of Whole-Body Vibration Does Not Improve Jumping Performance in Those With Anterior Cruciate Ligament Reconstruction Open
Context Individuals with anterior cruciate ligament reconstruction (ACLR) often fail to return to their previous level of sport performance. Although multifaceted, this inability to regain preinjury performance may be influenced by impaire…
View article: Biomechanical Threshold Values for Identifying Clinically Significant Knee-Related Symptoms 6 Months After Anterior Cruciate Ligament Reconstruction
Biomechanical Threshold Values for Identifying Clinically Significant Knee-Related Symptoms 6 Months After Anterior Cruciate Ligament Reconstruction Open
Context Slower habitual walking speed and aberrant gait biomechanics are linked to clinically significant knee-related symptoms and articular cartilage composition changes linked to posttraumatic osteoarthritis after anterior cruciate liga…
View article: The effect of Tai Chi lower extremity exercise on the balance control of older adults in assistant living communities
The effect of Tai Chi lower extremity exercise on the balance control of older adults in assistant living communities Open
Background Although Tai Chi (TC) is an evidence-based fall prevention training for older adults, its effective movements remain unclear, which may limit the practice of TC. The purpose of this study was to compare the effectiveness of TC l…
View article: Reaction Time and Joint Kinematics During Functional Movement in Recently Concussed Individuals
Reaction Time and Joint Kinematics During Functional Movement in Recently Concussed Individuals Open
Objective: To compare movement reaction time and joint kinematics between athletes with recent concussion and matched control recreational athletes during 3 functional tasks. Design: Cross-sectional. Setting: Laboratory. Participants: Coll…
View article: Early Gait Biomechanics Linked to Daily Steps After Anterior Cruciate Ligament Reconstruction
Early Gait Biomechanics Linked to Daily Steps After Anterior Cruciate Ligament Reconstruction Open
Context Gait biomechanics and daily steps are important aspects of knee-joint loading that change after anterior cruciate ligament reconstruction (ACLR). Understanding their relationship during the first 6 months post-ACLR could help clini…
View article: Acutely Normalizing Walking Speed Does Not Normalize Gait Biomechanics Post-Anterior Cruciate Ligament Reconstruction
Acutely Normalizing Walking Speed Does Not Normalize Gait Biomechanics Post-Anterior Cruciate Ligament Reconstruction Open
Aberrant gait biomechanics in individuals with anterior cruciate ligament reconstruction (ACLR) are linked to posttraumatic osteoarthritis (PTOA) development, indicating a need to normalize gait biomechanics to prevent PTOA. Anterior cruci…
View article: Sustained <scp>Limb‐Level</scp> Loading: A Ground Reaction Force Phenotype Common to Individuals at High Risk for and Those With Knee Osteoarthritis
Sustained <span>Limb‐Level</span> Loading: A Ground Reaction Force Phenotype Common to Individuals at High Risk for and Those With Knee Osteoarthritis Open
Objective The objective of this study was to compare the vertical (vGRF), anterior‐posterior (apGRF), and medial‐lateral (mlGRF) ground reaction force (GRF) profiles throughout the stance phase of gait (1) between individuals 6 to 12 month…
View article: Certified Athletic Trainers' knowledge and perceptions of posttraumatic osteoarthritis after knee injury
Certified Athletic Trainers' knowledge and perceptions of posttraumatic osteoarthritis after knee injury Open
Context: Posttraumatic osteoarthritis (PTOA) is a specific phenotype of osteoarthritis (OA) that commonly develops after acute knee injury, such as anterior cruciate ligament (ACL) or meniscal injury (or both). Athletic trainers (ATs) are …
View article: Physical Activity Associates with T1rho MRI of Femoral Cartilage After Anterior Cruciate Ligament Reconstruction
Physical Activity Associates with T1rho MRI of Femoral Cartilage After Anterior Cruciate Ligament Reconstruction Open
Purpose Less physical activity has been associated with systemic biomarkers of cartilage breakdown after anterior cruciate ligament reconstruction (ACLR). However, previous research lacks analysis of deleterious cartilage compositional cha…
View article: Gait Variability Structure Linked to Worse Cartilage Composition Post-ACL Reconstruction
Gait Variability Structure Linked to Worse Cartilage Composition Post-ACL Reconstruction Open
Introduction Aberrant gait variability has been observed after anterior cruciate ligament reconstruction (ACLR), yet it remains unknown if gait variability is associated with early changes in cartilage composition linked to osteoarthritis …
View article: Differences in Gait Biomechanics Between Adolescents and Young Adults With Anterior Cruciate Ligament Reconstruction
Differences in Gait Biomechanics Between Adolescents and Young Adults With Anterior Cruciate Ligament Reconstruction Open
Context Adolescents and adults are treated similarly in rehabilitation and research despite differences in clinical recovery after anterior cruciate ligament reconstruction (ACLR). Aberrant gait is a clinical outcome associated with poor l…
View article: Improvement Trajectories in Patient-Reported Outcomes Between Males and Females After Anterior Cruciate Ligament Reconstruction
Improvement Trajectories in Patient-Reported Outcomes Between Males and Females After Anterior Cruciate Ligament Reconstruction Open
Context Patient-reported outcomes (PROs) are used to track recovery and inform clinical decision-making after anterior cruciate ligament reconstruction (ACLR). Whether sex influences the trajectory of improvements in PROs over time post-AC…
View article: Worse Tibiofemoral Cartilage Composition Is Associated with Insufficient Gait Kinetics After ACL Reconstruction
Worse Tibiofemoral Cartilage Composition Is Associated with Insufficient Gait Kinetics After ACL Reconstruction Open
Purpose Greater articular cartilage T1ρ magnetic resonance imaging relaxation times indicate less proteoglycan density and are linked to posttraumatic osteoarthritis development after anterior cruciate ligament reconstruction (ACLR). Altho…
View article: Mechanical and Sensorimotor Outcomes Associated With Talar Cartilage Deformation After Static Loading in Those With Chronic Ankle Instability
Mechanical and Sensorimotor Outcomes Associated With Talar Cartilage Deformation After Static Loading in Those With Chronic Ankle Instability Open
Context Those with chronic ankle instability (CAI) demonstrate deleterious changes in talar cartilage composition, resulting in alterations of talar cartilage loading behavior. Common impairments associated with CAI may play a role in cart…
View article: Immediate Effects of Walking With a Knee Brace After Anterior Cruciate Ligament Reconstruction: A Biomechanical, Biochemical, and Structural Approach
Immediate Effects of Walking With a Knee Brace After Anterior Cruciate Ligament Reconstruction: A Biomechanical, Biochemical, and Structural Approach Open
Context Individuals who undergo anterior cruciate ligament reconstruction (ACLR) are at higher risk of posttraumatic osteoarthritis. Altered joint tissue loading caused by aberrant gait biomechanics leads to deleterious changes in joint he…
View article: Loading during Midstance of Gait Is Associated with Magnetic Resonance Imaging of Cartilage Composition Following Anterior Cruciate Ligament Reconstruction
Loading during Midstance of Gait Is Associated with Magnetic Resonance Imaging of Cartilage Composition Following Anterior Cruciate Ligament Reconstruction Open
Objective A complex association exists between aberrant gait biomechanics and posttraumatic knee osteoarthritis (PTOA) development. Previous research has primarily focused on the link between peak loading during the loading phase of stance…