John Ryan

ORCID: 0000-0002-6156-8105
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Research Areas
  • Sports injuries and prevention
  • Foot and Ankle Surgery
  • Lower Extremity Biomechanics and Pathologies
  • Injury Epidemiology and Prevention
  • Hip disorders and treatments
  • Traumatic Brain Injury Research
  • Orthopedic Surgery and Rehabilitation
  • Veterinary Orthopedics and Neurology
  • Orthopaedic implants and arthroplasty
  • Shoulder Injury and Treatment
  • Trauma and Emergency Care Studies
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Bone fractures and treatments
  • Tendon Structure and Treatment
  • Virology and Viral Diseases
  • Traffic and Road Safety
  • Balance, Gait, and Falls Prevention
  • Knee injuries and reconstruction techniques
  • Veterinary Equine Medical Research
  • Musculoskeletal pain and rehabilitation
  • Cerebral Palsy and Movement Disorders
  • Osteoarthritis Treatment and Mechanisms
  • Spine and Intervertebral Disc Pathology
  • Pregnancy-related medical research
  • Anesthesia and Pain Management

The Ohio State University Wexner Medical Center
2015-2024

University of Edinburgh
2011-2024

Roslin Institute
2013-2022

St. Vincent's University Hospital
2009-2021

The Ohio State University
1992-2021

University College Dublin
2003-2021

Children's Hospital Colorado
2021

University of Colorado Denver
2021

The Micheli Center for Sports Injury Prevention
2021

Howell Laboratories (United States)
2020

Background: Impairments in motor control may predicate the paradigm of chronic ankle instability (CAI) that can develop year after an acute lateral sprain (LAS) injury. No prospective analysis is currently available identifying mechanisms by which these impairments and contribute to long-term outcome LAS. Purpose: To identify deficits predicating CAI a first-time LAS Study Design: Cohort study (diagnosis); Level evidence, 2. Methods: Eighty-two individuals were recruited sustaining Several...

10.1177/0363546516628870 article EN The American Journal of Sports Medicine 2016-02-24

SummaryRubella hemagglutinin of high titer was prepared by alkaline extraction infected BHK-21/13S cells grown in suspension culture. After this treatment, soni-cation or tween-ether increased 4-16-fold. Optimal conditions for titration using eryth-rocytes from 1- to 3-day-old chicks included a low temperature and pH 6.2. A limited number stability tests indicated that extracted stable at — 70°C +4°C. The hemagglu-tinin used detect rises HI antibody paired serum specimens. Hemagglutination...

10.3181/00379727-125-32038 article EN Experimental Biology and Medicine 1967-05-01

Objective: To compare the effect of negative pressure wound therapy (NPWT) with standard‐of‐care management on healing acute open wounds in dogs. Study Design: Prospective, controlled, experimental study. Animals: Adult dogs (n=10). Methods: Full‐thickness 4 cm × 2 were surgically created each antebrachium and dog randomized to receive either NPWT or standard dressings (CON) for 21 days. Dressing changes evaluations made at 8 time points. First appearance granulation tissue, smoothness...

10.1111/j.1532-950x.2011.00849.x article EN Veterinary Surgery 2011-07-19

No researchers, to our knowledge, have investigated the immediate postinjury-movement strategies associated with acute first-time lateral ankle sprain (LAS) as quantified by center of pressure (COP) and kinematic analyses during performance Star Excursion Balance Test (SEBT).To analyze COP patterns a group LAS noninjured control SEBT.Case-control study.University biomechanics laboratory.A total 81 participants (53 men, 28 women; age = 23.22 ± 4.93 years, height 1.73 0.09 m, mass 75.72 13.86...

10.4085/1062-6050-50.1.09 article EN Journal of Athletic Training 2015-03-27

Study Design Controlled laboratory study. Objective To utilize kinematic and stabilometric measures to compare dynamic balance during performance of the Star Excursion Balance Test between persons 6 months following first-time lateral ankle sprain (LAS) a noninjured control group. Background Biomechanical evaluation in LAS could provide insight into mechanisms by which individuals proceed recover fully or develop chronic instability. Methods Sagittal plane kinematics lower extremity...

10.2519/jospt.2015.5653 article EN Journal of Orthopaedic and Sports Physical Therapy 2015-06-24

Introduction: Although the lack of internal rotation (IR) and total range motion (TRM) has been identified as a significant contributing factor shoulder injuries, our goal was to determine whether relationship exists between glenohumeral rotational deficits (GIRD), TRM, strength in professional baseball pitchers. Our hypothesis that GIRD with TRM differences within 5° will not lead decreased strength; however, >5° difference strength. Methods: The study conducted over 4-year period included...

10.5435/jaaos-d-15-00292 article EN Journal of the American Academy of Orthopaedic Surgeons 2015-11-25

No research currently exists investigating the effect of acute injury on single‐limb landing strategies. The aim current study was to analyze coordination strategies participants in phase lateral ankle sprain ( LAS ) injury. Thirty‐seven with acute, first‐time and 19 uninjured completed a single‐leg drop task both limbs. Three‐dimensional kinematic (angular displacement) sagittal plane kinetic (moment‐of‐force) data were acquired for joints lower extremity from 200 ms pre‐initial contact IC...

10.1111/sms.12282 article EN Scandinavian Journal of Medicine and Science in Sports 2014-06-27

No research exists predicating a link between acute ankle sprain injury-affiliated movement patterns and those of chronic instability (CAI) populations. The aim the current study was to perform biomechanical analysis participants, 6 months after they sustained first-time lateral (LAS) injury establish this link. Fifty-seven participants with 6-month history LAS 20 noninjured completed single-leg drop landing task on both limbs. Three-dimensional kinematic (angular displacement) sagittal...

10.1111/sms.12390 article EN Scandinavian Journal of Medicine and Science in Sports 2014-12-29

General practitioners (GPs) have the potential to promote alcohol harm minimisation via discussion of use with patients, but knowledge GPs' current practice and attitudes on this matter is limited. Our aim was assess towards discussing their patients.This qualitative study involved semi-structured, face-to-face interviews 19 GPs by a group medical students in primary care practices Wellington, New Zealand.Despite agreement amongst about importance role minimisation, not often raised patient...

10.1071/hc12217 article EN cc-by-nc-nd Journal of Primary Health Care 2012-01-01

In 2002, Moseley et al published a randomized controlled trial (RCT) that showed no difference between knee arthroscopy and placebo for patients with osteoarthritis (OA). We wanted to assess the impact of on clinical practice in United States.To evaluate changes before after publication article by effect this landmark RCT behavior practicing orthopaedic surgeons. hypothesized trial, overall frequency would decrease, mean age undergoing proportion arthroscopies diagnosis OA...

10.1177/2325967117698439 article EN cc-by-nc-nd Orthopaedic Journal of Sports Medicine 2017-04-01

To evaluate the adaptive movement and motor control patterns of a group with 6-month history first-time lateral ankle sprain (LAS) injury during drop vertical jump (DVJ) task. Fifty-one participants acute LAS twenty controls performed DVJ 3D kinematic sagittal plane kinetic profiles were plotted for lower extremity joints both limbs (phase 1) landing 2) phases DVJ. Inter-limb symmetry rate impact modulation (RIM) relative to bodyweight (BW) also determined. displayed bilateral increases in...

10.1002/jor.22915 article EN Journal of Orthopaedic Research® 2015-05-04

Introduction Longitudinal analyses of participants with a history lateral ankle sprain are lacking. This investigation combined measures lower limb interjoint coordination and stabilometry to evaluate static unipedal stance the eyes open (condition 1) closed 2) in group chronic instability (CAI) compared "copers" (both recruited 12 months after sustaining an acute first-time sprain) noninjured controls. Methods Twenty-eight CAI, 42 "copers," 20 controls completed three 20-s single-limb...

10.1249/mss.0000000000000673 article EN Medicine & Science in Sports & Exercise 2015-04-03
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