The Experts below are selected from a list of 9945 Experts worldwide ranked by ideXlab platform
Jay Hertel - One of the best experts on this subject based on the ideXlab platform.
-
clinical assessment of acute lateral Ankle Sprain injuries roast 2019 consensus statement and recommendations of the international Ankle consortium
British Journal of Sports Medicine, 2018Co-Authors: Eamonn Delahunt, Jay Hertel, Cailbhe Doherty, Brian Caulfield, Chris Bleakley, Daniela S Bossard, Carrie L Docherty, Francois Fourchet, Daniel T Fong, Claire E. HillerAbstract:Lateral Ankle Sprain injury is the most common musculoskeletal injury incurred by individuals who participate in sports and recreational physical activities. Following initial injury, a high proportion of individuals develop long-term injury-associated symptoms and chronic Ankle instability. The development of chronic Ankle instability is consequent on the interaction of mechanical and sensorimotor insufficiencies/impairments that manifest following acute lateral Ankle Sprain injury. To reduce the propensity for developing chronic Ankle instability, clinical assessments should evaluate whether patients in the acute phase following lateral Ankle Sprain injury exhibit any mechanical and/or sensorimotor impairments. This modified Delphi study was undertaken under the auspices of the executive committee of the International Ankle Consortium. The primary aim was to develop recommendations, based on expert (n=14) consensus, for structured clinical assessment of acute lateral Ankle Sprain injuries. After two modified Delphi rounds, consensus was achieved on the clinical assessment of acute lateral Ankle Sprain injuries. Consensus was reached on a minimum standard clinical diagnostic assessment. Key components of this clinical diagnostic assessment include: establishing the mechanism of injury, as well as the assessment of Ankle joint bones and ligaments. Through consensus, the expert panel also developed the International Ankle Consortium Rehabilitation-Oriented ASsessmenT (ROAST). The International Ankle Consortium ROAST will help clinicians identify mechanical and/or sensorimotor impairments that are associated with chronic Ankle instability. This consensus statement from the International Ankle Consortium aims to be a key resource for clinicians who regularly assess individuals with acute lateral Ankle Sprain injuries.
-
current trends in the management of lateral Ankle Sprain in the united states
Clinical Journal of Sport Medicine, 2017Co-Authors: Mark A Feger, Neal R Glaviano, Luke Donovan, Joseph M Hart, Susan A Saliba, Joseph S Park, Jay HertelAbstract:Objective:To characterize trends in the acute management (within 30 days) after lateral Ankle Sprain (LAS) in the United States.Design:Descriptive epidemiology study.Patients:Of note, 825 718 Ankle Sprain patients were identified; 96.2% were patients with LAS. Seven percent had an associated fractur
-
dynamic balance deficits in individuals with chronic Ankle instability compared to Ankle Sprain copers 1 year after a first time lateral Ankle Sprain injury
Knee Surgery Sports Traumatology Arthroscopy, 2016Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Purpose To quantify the dynamic balance deficits that characterise a group with chronic Ankle instability compared to lateral Ankle Sprain copers and non-injured controls using kinematic and kinetic outcomes.
-
single leg drop landing movement strategies in participants with chronic Ankle instability compared with lateral Ankle Sprain copers
Knee Surgery Sports Traumatology Arthroscopy, 2016Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Purpose To compare the movement patterns and underlying energetics of individuals with chronic Ankle instability (CAI) to Ankle Sprain ‘copers’ during a landing task.
-
lower limb interjoint postural coordination one year after first time lateral Ankle Sprain
Medicine and Science in Sports and Exercise, 2015Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Kevin T Sweeney, Matthew R Patterson, Eamonn DelahuntAbstract:AB Introduction: Longitudinal analyses of participants with a history of lateral Ankle Sprain are lacking. This investigation combined measures of lower limb interjoint coordination and stabilometry to evaluate static unipedal stance with the eyes open (condition 1) and closed (condition 2) in a group of participants with chronic Ankle instability (CAI) compared to lateral Ankle Sprain "copers" (both recruited 12 months after sustaining an acute first-time lateral Ankle Sprain) and a group of noninjured controls. Methods: Twenty-eight participants with CAI, 42 lateral Ankle Sprain "copers," and 20 noninjured controls completed three 20-s single-limb stance trials in conditions 1 and 2. An adjusted coefficient of multiple determination statistic was used to compare stance limb three-dimensional kinematic data for similarity to establish patterns of interjoint coordination. The fractal dimension of the stance limb center of pressure path was also calculated. Results: Between-group analyses revealed that participants with CAI displayed notable increases in Ankle-hip linked coordination compared with both lateral Ankle Sprain "copers" (-0.52 (1.05) vs 0.28 (0.9), P = 0.007) and controls (-0.52 (1.05) vs 0.63 (0.64), P = 0.006) in condition 1 and compared with controls only (0.62 (1.92) vs 0.1 (1.0) P = 0.002) in condition 2. Participants with CAI also exhibited a decrease in the fractal dimension of the center-of-pressure path during condition 2 compared with both controls and lateral Ankle Sprain "copers." Conclusions: Participants with CAI present with a hip-dominant strategy of eyes-open and eyes-closed static unipedal stance. This coincided with reduced complexity of the stance limb center of pressure path in the eyes-closed condition
Eamonn Delahunt - One of the best experts on this subject based on the ideXlab platform.
-
criteria based return to sport decision making following lateral Ankle Sprain injury a systematic review and narrative synthesis
Sports Medicine, 2019Co-Authors: Bruno Tassignon, Eamonn Delahunt, Evert Verhagen, Jo Verschueren, Michelle Smith, Bill Vicenzino, Romain MeeusenAbstract:The aim of this systematic review was to identify prospective studies that used a criteria-based return to sport (RTS) decision-making process for patients with lateral Ankle Sprain (LAS) injury. Systematic review and narrative synthesis. The PubMed (MEDLINE), Web of Science, PEDro, Cochrane Library, SPORTDiscus (EBSCO), ScienceDirect, and Scopus databases were searched to 23 November 2018. Studies were included if they prospectively applied a criteria-based RTS decision-making process for patients with LAS injury, but were excluded if they merely gathered outcome measures at the RTS time point. Studies were also excluded if patients were recovering from Ankle fracture, high Ankle Sprain, medial Ankle Sprain, chronic Ankle instability or complex Ankle injury. No studies were identified that used a criteria-based RTS decision-making process for patients with LAS injury. We were unable to conduct a quantitative synthesis or meta-analysis, therefore we provide a narrative synthesis of relevant questionnaires, as well as clinical and functional assessments commonly used in studies retrieved in the search. There are currently no published evidence-based criteria to inform RTS decisions for patients with an LAS injury. Based on our narrative synthesis, we propose a number of variables that could be used to develop a criteria-based RTS decision paradigm. Future research should aim to reach consensus on these variables and apply them to actual RTS decisions within prospective study designs. Furthermore, we suggest that complex systems theory and the RTS continuum could be used to inform the development of an RTS decision-making paradigm for athletes with LAS injury.
-
clinical assessment of acute lateral Ankle Sprain injuries roast 2019 consensus statement and recommendations of the international Ankle consortium
British Journal of Sports Medicine, 2018Co-Authors: Eamonn Delahunt, Jay Hertel, Cailbhe Doherty, Brian Caulfield, Chris Bleakley, Daniela S Bossard, Carrie L Docherty, Francois Fourchet, Daniel T Fong, Claire E. HillerAbstract:Lateral Ankle Sprain injury is the most common musculoskeletal injury incurred by individuals who participate in sports and recreational physical activities. Following initial injury, a high proportion of individuals develop long-term injury-associated symptoms and chronic Ankle instability. The development of chronic Ankle instability is consequent on the interaction of mechanical and sensorimotor insufficiencies/impairments that manifest following acute lateral Ankle Sprain injury. To reduce the propensity for developing chronic Ankle instability, clinical assessments should evaluate whether patients in the acute phase following lateral Ankle Sprain injury exhibit any mechanical and/or sensorimotor impairments. This modified Delphi study was undertaken under the auspices of the executive committee of the International Ankle Consortium. The primary aim was to develop recommendations, based on expert (n=14) consensus, for structured clinical assessment of acute lateral Ankle Sprain injuries. After two modified Delphi rounds, consensus was achieved on the clinical assessment of acute lateral Ankle Sprain injuries. Consensus was reached on a minimum standard clinical diagnostic assessment. Key components of this clinical diagnostic assessment include: establishing the mechanism of injury, as well as the assessment of Ankle joint bones and ligaments. Through consensus, the expert panel also developed the International Ankle Consortium Rehabilitation-Oriented ASsessmenT (ROAST). The International Ankle Consortium ROAST will help clinicians identify mechanical and/or sensorimotor impairments that are associated with chronic Ankle instability. This consensus statement from the International Ankle Consortium aims to be a key resource for clinicians who regularly assess individuals with acute lateral Ankle Sprain injuries.
-
treatment and prevention of acute and recurrent Ankle Sprain an overview of systematic reviews with meta analysis
British Journal of Sports Medicine, 2017Co-Authors: Cailbhe Doherty, Eamonn Delahunt, Chris M Bleakley, Sinead HoldenAbstract:Background Ankle Sprains are highly prevalent with high risk of recurrence. Consequently, there are a significant number of research reports examining strategies for treating and preventing acute and recurrent Sprains (otherwise known as chronic Ankle instability (CAI)), with a coinciding proliferation of review articles summarising these reports. Objective To provide a systematic overview of the systematic reviews evaluating treatment strategies for acute Ankle Sprain and CAI. Design Overview of intervention systematic reviews. Participants Individuals with acute Ankle Sprain/CAI. Main outcome measurements The primary outcomes were injury/reinjury incidence and function. Results 46 papers were included in this systematic review. The reviews had a mean score of 6.5/11 on the AMSTAR quality assessment tool. There was strong evidence for bracing and moderate evidence for neuromuscular training in preventing recurrence of an Ankle Sprain. For the combined outcomes of pain, swelling and function after an acute Sprain, there was strong evidence for non-steroidal anti-inflammatory drugs and early mobilisation, with moderate evidence supporting exercise and manual therapy techniques. There was conflicting evidence regarding the efficacy of surgery and acupuncture for the treatment of acute Ankle Sprains. There was insufficient evidence to support the use of ultrasound in the treatment of acute Ankle Sprains. Conclusions For the treatment of acute Ankle Sprain, there is strong evidence for non-steroidal anti-inflammatory drugs and early mobilisation, with moderate evidence supporting exercise and manual therapy techniques, for pain, swelling and function. Exercise therapy and bracing are supported in the prevention of CAI.
-
dynamic balance deficits in individuals with chronic Ankle instability compared to Ankle Sprain copers 1 year after a first time lateral Ankle Sprain injury
Knee Surgery Sports Traumatology Arthroscopy, 2016Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Purpose To quantify the dynamic balance deficits that characterise a group with chronic Ankle instability compared to lateral Ankle Sprain copers and non-injured controls using kinematic and kinetic outcomes.
-
single leg drop landing movement strategies in participants with chronic Ankle instability compared with lateral Ankle Sprain copers
Knee Surgery Sports Traumatology Arthroscopy, 2016Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Purpose To compare the movement patterns and underlying energetics of individuals with chronic Ankle instability (CAI) to Ankle Sprain ‘copers’ during a landing task.
Cailbhe Doherty - One of the best experts on this subject based on the ideXlab platform.
-
clinical assessment of acute lateral Ankle Sprain injuries roast 2019 consensus statement and recommendations of the international Ankle consortium
British Journal of Sports Medicine, 2018Co-Authors: Eamonn Delahunt, Jay Hertel, Cailbhe Doherty, Brian Caulfield, Chris Bleakley, Daniela S Bossard, Carrie L Docherty, Francois Fourchet, Daniel T Fong, Claire E. HillerAbstract:Lateral Ankle Sprain injury is the most common musculoskeletal injury incurred by individuals who participate in sports and recreational physical activities. Following initial injury, a high proportion of individuals develop long-term injury-associated symptoms and chronic Ankle instability. The development of chronic Ankle instability is consequent on the interaction of mechanical and sensorimotor insufficiencies/impairments that manifest following acute lateral Ankle Sprain injury. To reduce the propensity for developing chronic Ankle instability, clinical assessments should evaluate whether patients in the acute phase following lateral Ankle Sprain injury exhibit any mechanical and/or sensorimotor impairments. This modified Delphi study was undertaken under the auspices of the executive committee of the International Ankle Consortium. The primary aim was to develop recommendations, based on expert (n=14) consensus, for structured clinical assessment of acute lateral Ankle Sprain injuries. After two modified Delphi rounds, consensus was achieved on the clinical assessment of acute lateral Ankle Sprain injuries. Consensus was reached on a minimum standard clinical diagnostic assessment. Key components of this clinical diagnostic assessment include: establishing the mechanism of injury, as well as the assessment of Ankle joint bones and ligaments. Through consensus, the expert panel also developed the International Ankle Consortium Rehabilitation-Oriented ASsessmenT (ROAST). The International Ankle Consortium ROAST will help clinicians identify mechanical and/or sensorimotor impairments that are associated with chronic Ankle instability. This consensus statement from the International Ankle Consortium aims to be a key resource for clinicians who regularly assess individuals with acute lateral Ankle Sprain injuries.
-
treatment and prevention of acute and recurrent Ankle Sprain an overview of systematic reviews with meta analysis
British Journal of Sports Medicine, 2017Co-Authors: Cailbhe Doherty, Eamonn Delahunt, Chris M Bleakley, Sinead HoldenAbstract:Background Ankle Sprains are highly prevalent with high risk of recurrence. Consequently, there are a significant number of research reports examining strategies for treating and preventing acute and recurrent Sprains (otherwise known as chronic Ankle instability (CAI)), with a coinciding proliferation of review articles summarising these reports. Objective To provide a systematic overview of the systematic reviews evaluating treatment strategies for acute Ankle Sprain and CAI. Design Overview of intervention systematic reviews. Participants Individuals with acute Ankle Sprain/CAI. Main outcome measurements The primary outcomes were injury/reinjury incidence and function. Results 46 papers were included in this systematic review. The reviews had a mean score of 6.5/11 on the AMSTAR quality assessment tool. There was strong evidence for bracing and moderate evidence for neuromuscular training in preventing recurrence of an Ankle Sprain. For the combined outcomes of pain, swelling and function after an acute Sprain, there was strong evidence for non-steroidal anti-inflammatory drugs and early mobilisation, with moderate evidence supporting exercise and manual therapy techniques. There was conflicting evidence regarding the efficacy of surgery and acupuncture for the treatment of acute Ankle Sprains. There was insufficient evidence to support the use of ultrasound in the treatment of acute Ankle Sprains. Conclusions For the treatment of acute Ankle Sprain, there is strong evidence for non-steroidal anti-inflammatory drugs and early mobilisation, with moderate evidence supporting exercise and manual therapy techniques, for pain, swelling and function. Exercise therapy and bracing are supported in the prevention of CAI.
-
dynamic balance deficits in individuals with chronic Ankle instability compared to Ankle Sprain copers 1 year after a first time lateral Ankle Sprain injury
Knee Surgery Sports Traumatology Arthroscopy, 2016Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Purpose To quantify the dynamic balance deficits that characterise a group with chronic Ankle instability compared to lateral Ankle Sprain copers and non-injured controls using kinematic and kinetic outcomes.
-
single leg drop landing movement strategies in participants with chronic Ankle instability compared with lateral Ankle Sprain copers
Knee Surgery Sports Traumatology Arthroscopy, 2016Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Purpose To compare the movement patterns and underlying energetics of individuals with chronic Ankle instability (CAI) to Ankle Sprain ‘copers’ during a landing task.
-
lower limb interjoint postural coordination one year after first time lateral Ankle Sprain
Medicine and Science in Sports and Exercise, 2015Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Kevin T Sweeney, Matthew R Patterson, Eamonn DelahuntAbstract:AB Introduction: Longitudinal analyses of participants with a history of lateral Ankle Sprain are lacking. This investigation combined measures of lower limb interjoint coordination and stabilometry to evaluate static unipedal stance with the eyes open (condition 1) and closed (condition 2) in a group of participants with chronic Ankle instability (CAI) compared to lateral Ankle Sprain "copers" (both recruited 12 months after sustaining an acute first-time lateral Ankle Sprain) and a group of noninjured controls. Methods: Twenty-eight participants with CAI, 42 lateral Ankle Sprain "copers," and 20 noninjured controls completed three 20-s single-limb stance trials in conditions 1 and 2. An adjusted coefficient of multiple determination statistic was used to compare stance limb three-dimensional kinematic data for similarity to establish patterns of interjoint coordination. The fractal dimension of the stance limb center of pressure path was also calculated. Results: Between-group analyses revealed that participants with CAI displayed notable increases in Ankle-hip linked coordination compared with both lateral Ankle Sprain "copers" (-0.52 (1.05) vs 0.28 (0.9), P = 0.007) and controls (-0.52 (1.05) vs 0.63 (0.64), P = 0.006) in condition 1 and compared with controls only (0.62 (1.92) vs 0.1 (1.0) P = 0.002) in condition 2. Participants with CAI also exhibited a decrease in the fractal dimension of the center-of-pressure path during condition 2 compared with both controls and lateral Ankle Sprain "copers." Conclusions: Participants with CAI present with a hip-dominant strategy of eyes-open and eyes-closed static unipedal stance. This coincided with reduced complexity of the stance limb center of pressure path in the eyes-closed condition
Brian Caulfield - One of the best experts on this subject based on the ideXlab platform.
-
clinical assessment of acute lateral Ankle Sprain injuries roast 2019 consensus statement and recommendations of the international Ankle consortium
British Journal of Sports Medicine, 2018Co-Authors: Eamonn Delahunt, Jay Hertel, Cailbhe Doherty, Brian Caulfield, Chris Bleakley, Daniela S Bossard, Carrie L Docherty, Francois Fourchet, Daniel T Fong, Claire E. HillerAbstract:Lateral Ankle Sprain injury is the most common musculoskeletal injury incurred by individuals who participate in sports and recreational physical activities. Following initial injury, a high proportion of individuals develop long-term injury-associated symptoms and chronic Ankle instability. The development of chronic Ankle instability is consequent on the interaction of mechanical and sensorimotor insufficiencies/impairments that manifest following acute lateral Ankle Sprain injury. To reduce the propensity for developing chronic Ankle instability, clinical assessments should evaluate whether patients in the acute phase following lateral Ankle Sprain injury exhibit any mechanical and/or sensorimotor impairments. This modified Delphi study was undertaken under the auspices of the executive committee of the International Ankle Consortium. The primary aim was to develop recommendations, based on expert (n=14) consensus, for structured clinical assessment of acute lateral Ankle Sprain injuries. After two modified Delphi rounds, consensus was achieved on the clinical assessment of acute lateral Ankle Sprain injuries. Consensus was reached on a minimum standard clinical diagnostic assessment. Key components of this clinical diagnostic assessment include: establishing the mechanism of injury, as well as the assessment of Ankle joint bones and ligaments. Through consensus, the expert panel also developed the International Ankle Consortium Rehabilitation-Oriented ASsessmenT (ROAST). The International Ankle Consortium ROAST will help clinicians identify mechanical and/or sensorimotor impairments that are associated with chronic Ankle instability. This consensus statement from the International Ankle Consortium aims to be a key resource for clinicians who regularly assess individuals with acute lateral Ankle Sprain injuries.
-
dynamic balance deficits in individuals with chronic Ankle instability compared to Ankle Sprain copers 1 year after a first time lateral Ankle Sprain injury
Knee Surgery Sports Traumatology Arthroscopy, 2016Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Purpose To quantify the dynamic balance deficits that characterise a group with chronic Ankle instability compared to lateral Ankle Sprain copers and non-injured controls using kinematic and kinetic outcomes.
-
single leg drop landing movement strategies in participants with chronic Ankle instability compared with lateral Ankle Sprain copers
Knee Surgery Sports Traumatology Arthroscopy, 2016Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Purpose To compare the movement patterns and underlying energetics of individuals with chronic Ankle instability (CAI) to Ankle Sprain ‘copers’ during a landing task.
-
lower limb interjoint postural coordination one year after first time lateral Ankle Sprain
Medicine and Science in Sports and Exercise, 2015Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Kevin T Sweeney, Matthew R Patterson, Eamonn DelahuntAbstract:AB Introduction: Longitudinal analyses of participants with a history of lateral Ankle Sprain are lacking. This investigation combined measures of lower limb interjoint coordination and stabilometry to evaluate static unipedal stance with the eyes open (condition 1) and closed (condition 2) in a group of participants with chronic Ankle instability (CAI) compared to lateral Ankle Sprain "copers" (both recruited 12 months after sustaining an acute first-time lateral Ankle Sprain) and a group of noninjured controls. Methods: Twenty-eight participants with CAI, 42 lateral Ankle Sprain "copers," and 20 noninjured controls completed three 20-s single-limb stance trials in conditions 1 and 2. An adjusted coefficient of multiple determination statistic was used to compare stance limb three-dimensional kinematic data for similarity to establish patterns of interjoint coordination. The fractal dimension of the stance limb center of pressure path was also calculated. Results: Between-group analyses revealed that participants with CAI displayed notable increases in Ankle-hip linked coordination compared with both lateral Ankle Sprain "copers" (-0.52 (1.05) vs 0.28 (0.9), P = 0.007) and controls (-0.52 (1.05) vs 0.63 (0.64), P = 0.006) in condition 1 and compared with controls only (0.62 (1.92) vs 0.1 (1.0) P = 0.002) in condition 2. Participants with CAI also exhibited a decrease in the fractal dimension of the center-of-pressure path during condition 2 compared with both controls and lateral Ankle Sprain "copers." Conclusions: Participants with CAI present with a hip-dominant strategy of eyes-open and eyes-closed static unipedal stance. This coincided with reduced complexity of the stance limb center of pressure path in the eyes-closed condition
-
inter joint coordination strategies during unilateral stance 6 months following first time lateral Ankle Sprain
Clinical Biomechanics, 2015Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Kevin T Sweeney, Chris M Bleakley, Eamonn DelahuntAbstract:article Background: Longitudinal analyses of participants with a history of lateral Ankle Sprain are lacking. This investi- gation combined measures of inter-joint coordination and stabilometry to evaluate eyes-open (condition 1) and eyes-closed (condition 2) static unilateral stance performance in a group of participants, 6-months after they sustained an acute, first-time lateral Ankle Sprain in comparison to a control group. Methods: Sixty-nine participants with a 6-month history of first-time lateral Ankle Sprain and 20 non-injured controls completed three 20-second unilateral stance task trials in conditions 1 and 2. An adjusted coefficient of multiple determination statistic was used to compare stance limb 3-dimensional kinematic data for similarity in the aim of establishing patterns of lower-limb inter-joint coordination. The fractal dimension of the stance limb centre of pressure path was also calculated. Findings:Between-group analyses revealed significant differences in stancelimb inter-jointcoordination strategies for conditions 1 and 2, and inthe fractal dimension of the centre-of-pressure path for condition 2 only. Injured par- ticipantsdisplayedincreasesinAnkle-hiplinkedcoordinationcomparedtocontrolsincondition1(sagittal/frontal plane: 0.15 (0.14) vs 0.06 (0.04); η 2 = .19; sagittal/transverse plane: 0.14 (0.11) vs 0.09 (0.05); η 2 = 0.14) and condition 2 (sagittal/frontal plane: 0.15 (0.12) vs 0.08 (0.06); η 2 = 0.23), with an associateddecrease inthe fractal
John Ryan - One of the best experts on this subject based on the ideXlab platform.
-
single leg drop landing movement strategies in participants with chronic Ankle instability compared with lateral Ankle Sprain copers
Knee Surgery Sports Traumatology Arthroscopy, 2016Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Purpose To compare the movement patterns and underlying energetics of individuals with chronic Ankle instability (CAI) to Ankle Sprain ‘copers’ during a landing task.
-
dynamic balance deficits in individuals with chronic Ankle instability compared to Ankle Sprain copers 1 year after a first time lateral Ankle Sprain injury
Knee Surgery Sports Traumatology Arthroscopy, 2016Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Purpose To quantify the dynamic balance deficits that characterise a group with chronic Ankle instability compared to lateral Ankle Sprain copers and non-injured controls using kinematic and kinetic outcomes.
-
lower limb interjoint postural coordination one year after first time lateral Ankle Sprain
Medicine and Science in Sports and Exercise, 2015Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Kevin T Sweeney, Matthew R Patterson, Eamonn DelahuntAbstract:AB Introduction: Longitudinal analyses of participants with a history of lateral Ankle Sprain are lacking. This investigation combined measures of lower limb interjoint coordination and stabilometry to evaluate static unipedal stance with the eyes open (condition 1) and closed (condition 2) in a group of participants with chronic Ankle instability (CAI) compared to lateral Ankle Sprain "copers" (both recruited 12 months after sustaining an acute first-time lateral Ankle Sprain) and a group of noninjured controls. Methods: Twenty-eight participants with CAI, 42 lateral Ankle Sprain "copers," and 20 noninjured controls completed three 20-s single-limb stance trials in conditions 1 and 2. An adjusted coefficient of multiple determination statistic was used to compare stance limb three-dimensional kinematic data for similarity to establish patterns of interjoint coordination. The fractal dimension of the stance limb center of pressure path was also calculated. Results: Between-group analyses revealed that participants with CAI displayed notable increases in Ankle-hip linked coordination compared with both lateral Ankle Sprain "copers" (-0.52 (1.05) vs 0.28 (0.9), P = 0.007) and controls (-0.52 (1.05) vs 0.63 (0.64), P = 0.006) in condition 1 and compared with controls only (0.62 (1.92) vs 0.1 (1.0) P = 0.002) in condition 2. Participants with CAI also exhibited a decrease in the fractal dimension of the center-of-pressure path during condition 2 compared with both controls and lateral Ankle Sprain "copers." Conclusions: Participants with CAI present with a hip-dominant strategy of eyes-open and eyes-closed static unipedal stance. This coincided with reduced complexity of the stance limb center of pressure path in the eyes-closed condition
-
inter joint coordination strategies during unilateral stance 6 months following first time lateral Ankle Sprain
Clinical Biomechanics, 2015Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Kevin T Sweeney, Chris M Bleakley, Eamonn DelahuntAbstract:article Background: Longitudinal analyses of participants with a history of lateral Ankle Sprain are lacking. This investi- gation combined measures of inter-joint coordination and stabilometry to evaluate eyes-open (condition 1) and eyes-closed (condition 2) static unilateral stance performance in a group of participants, 6-months after they sustained an acute, first-time lateral Ankle Sprain in comparison to a control group. Methods: Sixty-nine participants with a 6-month history of first-time lateral Ankle Sprain and 20 non-injured controls completed three 20-second unilateral stance task trials in conditions 1 and 2. An adjusted coefficient of multiple determination statistic was used to compare stance limb 3-dimensional kinematic data for similarity in the aim of establishing patterns of lower-limb inter-joint coordination. The fractal dimension of the stance limb centre of pressure path was also calculated. Findings:Between-group analyses revealed significant differences in stancelimb inter-jointcoordination strategies for conditions 1 and 2, and inthe fractal dimension of the centre-of-pressure path for condition 2 only. Injured par- ticipantsdisplayedincreasesinAnkle-hiplinkedcoordinationcomparedtocontrolsincondition1(sagittal/frontal plane: 0.15 (0.14) vs 0.06 (0.04); η 2 = .19; sagittal/transverse plane: 0.14 (0.11) vs 0.09 (0.05); η 2 = 0.14) and condition 2 (sagittal/frontal plane: 0.15 (0.12) vs 0.08 (0.06); η 2 = 0.23), with an associateddecrease inthe fractal
-
postural control strategies during single limb stance following acute lateral Ankle Sprain
Clinical Biomechanics, 2014Co-Authors: Cailbhe Doherty, Jay Hertel, Brian Caulfield, John Ryan, Chris Bleakley, Eamonn DelahuntAbstract:Abstract Background Single-limb stance is maintained via the integration of visual, vestibular and somatosensory afferents. Musculoskeletal injury challenges the somatosensory system to reweight distorted sensory afferents. This investigation supplements kinetic analysis of eyes-open and eyes-closed single-limb stance tasks with a kinematic profile of lower limb postural orientation in an acute lateral Ankle Sprain group to assess the adaptive capacity of the sensorimotor system to injury. Methods Sixty-six participants with first-time acute lateral Ankle Sprain completed a 20 second eyes-open single-limb stance task on their injured and non-injured limbs (task 1). Twenty-three of these participants successfully completed the same 20 second single-limb stance task with their eyes closed (task 2). A non-injured control group of 19 participants completed task 1, with 16 completing task 2. 3-dimensional kinematics of the hip, knee and Ankle joints, as well as associated fractal dimension of the center-of-pressure path were determined for each limb during these tasks. Findings Between trial analyses revealed significant differences in stance limb kinematics and fractal dimension of the center-of-pressure path for task 2 only. The control group bilaterally assumed a position of greater hip flexion compared to injured participants on their side-matched “involved”(7.41 [6.1°] vs 1.44 [4.8]°; η 2 = .34) and “uninvolved” (9.59 [8.5°] vs 2.16 [5.6°]; η 2 = .31) limbs, with a greater fractal dimension of the center-of-pressure path (involved limb = 1.39 [0.16°] vs 1.25 [0.14°]; uninvolved limb = 1.37 [0.21°] vs 1.23 [0.14°]). Interpretation Bilateral impairment in postural control strategies present following a first time acute lateral Ankle Sprain.
