Jan Lexell

ORCID: 0000-0001-5294-3332
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About
Contact & Profiles
Research Areas
  • Cerebral Palsy and Movement Disorders
  • Sports injuries and prevention
  • Spinal Cord Injury Research
  • Stroke Rehabilitation and Recovery
  • Muscle activation and electromyography studies
  • Traumatic Brain Injury Research
  • Cardiovascular Effects of Exercise
  • Muscle Physiology and Disorders
  • Injury Epidemiology and Prevention
  • Viral Infections and Immunology Research
  • Balance, Gait, and Falls Prevention
  • Botulinum Toxin and Related Neurological Disorders
  • Sports Performance and Training
  • Cardiac Arrest and Resuscitation
  • Musculoskeletal pain and rehabilitation
  • Cardiomyopathy and Myosin Studies
  • Occupational Therapy Practice and Research
  • Fibromyalgia and Chronic Fatigue Syndrome Research
  • Body Composition Measurement Techniques
  • Delphi Technique in Research
  • Health, psychology, and well-being
  • Health disparities and outcomes
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Trauma and Emergency Care Studies
  • Multiple Sclerosis Research Studies

Lund University
2016-2025

Hässleholms Sjukhus
2024-2025

Skåne University Hospital
2014-2024

International Paralympic Committee
2014-2022

University of Puerto Rico System
2020-2022

Uppsala University
2018-2021

Foundation for Physical Medicine and Rehabilitation
2016-2020

Pain and Rehabilitation Medicine
2013-2020

Swedish Research Council
2020

Swedish Heart-Lung Foundation
2020

10.1016/0022-510x(88)90132-3 article EN Journal of the Neurological Sciences 1988-04-01

To assess the reliability of 6 gait performance tests in individuals with chronic mild to moderate post-stroke hemiparesis.An intra-rater (between occasions) test-retest study.Fifty men and women (mean age 58+/-6.4 years) 6-46 months post-stroke.The Timed "Up & Go" test, Comfortable Fast Gait Speed tests, Stair Climbing ascend descend 6-Minute Walk test were assessed 7 days apart. Reliability was evaluated intraclass correlation coefficient (ICC(2,1)), Bland Altman analysis, standard error...

10.1080/16501970410017215 article EN Journal of Rehabilitation Medicine 2004-09-27

Lexell JE, Downham DY: How to assess the reliability of measurements in rehabilitation. Am J Phys Med Rehabil 2005;84:719–723. To evaluate effects rehabilitation interventions, we need reliable measurements. The should also be sufficiently sensitive enable detection clinically important changes. In recent years, assessment clinical practice and medical research has developed from use correlation coefficients a comprehensive set statistical methods. this review, present methods that can used...

10.1097/01.phm.0000176452.17771.20 article EN American Journal of Physical Medicine & Rehabilitation 2005-09-01

Abstract The effects of aging on the total number and size fibers, proportion distribution type 1 (slow twitch) 2 (fast fibers were studied in cross sections (15 μ thick) autopsied whole m. vastus lateralis from two age groups. Each group consisted six, previously physically healthy males (mean 72 ± years 30 6 years, respectively). muscles older individuals was 18% smaller ( P < 0.01) 25% lower than those young 364,000 50,000 vs 478,000 56,000). There was, however, no significant...

10.1002/mus.880060809 article EN Muscle & Nerve 1983-10-01

To describe the process and outcomes of using a new evidence base to develop scientific guidelines that specify type minimum dose exercise necessary improve fitness cardiometabolic health in adults with spinal cord injury (SCI).International.Using Appraisal Guidelines, Research Evaluation (AGREE) II reporting criteria, steps included (a) determining guidelines' scope; (b) conducting systematic review relevant literature; (c) holding three consensus panel meetings (European, Canadian...

10.1038/s41393-017-0017-3 article EN cc-by-nc-nd Spinal Cord 2017-10-25

10.1016/0022-510x(86)90009-2 article EN Journal of the Neurological Sciences 1986-02-01

In order to determine the total number of fibres and extent which relative occurrence different fibre types varies within m. vastus lateralis, 15 μm thick cross‐sections whole muscles were prepared. The type 1 2 was determined in every 48th square millimetre section, results thus obtained analysed using a computer program allowing an assessment bivariate data form contour plots. varied both proximal distal direction same muscle between individuals. No obvious correlation existed mean area...

10.1111/j.1748-1716.1983.tb07185.x article EN Acta Physiologica Scandinavica 1983-01-01

Abstract The overall aim of this study was to assess the effects aging on satellite cell population. Muscle biopsies were taken from tibialis anterior muscle healthy, moderately active young (age range, 20–32 years; n = 31) and elderly 70–83 27) women men with comparable physical activity pattern. Satellite cells myonuclei visualized using a monoclonal antibody against neural adhesion molecule counterstained Mayer's hematoxylin. An average 211 (range, 192–241) fibers examined for each...

10.1002/mus.10510 article EN Muscle & Nerve 2003-11-04

To evaluate the effects of progressive resistance training on muscle strength, tone, gait performance and perceived participation after stroke.A randomized controlled trial.Twenty-four subjects (mean age 61 years (standard deviation 5)) 6-48 months post-stroke.The group (n = 15) participated in supervised knee muscles (80% maximum) twice weekly for 10 weeks, control 9) continued their usual daily activities. Both groups were assessed before intervention at follow-up 5 months. Muscle strength...

10.2340/16501977-0129 article EN Acta Dermato Venereologica 2008-01-01

Abstract The mechanisms underlying the increase in volume of muscle tissue, and functional development fibers from childhood through adolescence to adult age, have been studied. Cross sections autopsied whole vastus lateralis 22 previously physically healthy males, 5 37 years were prepared enzyme histochemically (myofibrillar ATPase) examined morphometrically. data obtained on crosssectional area, size, total number, proportion type 1 (slow‐twitch) 2 (fast‐twitch) analyzed using linear...

10.1002/mus.880150323 article EN Muscle & Nerve 1992-03-01

Physical exercise is known to be a beneficial factor by increasing the cellular stress tolerance. In ischemic stroke, physical suggested both limit brain injury and facilitate behavioral recovery. this study we investigated effect of on damage following global cerebral ischemia in mice. We aimed effects 4.5 weeks forced treadmill running prior neuronal damage, neuroinflammation its general measuring corticosterone feces. subjected C57bl/6 mice (n = 63) either or sedentary program induction...

10.1016/j.ynstr.2016.09.002 article EN cc-by-nc-nd Neurobiology of Stress 2016-09-13

To describe the incidence of injury in precompetition and competition periods Rio 2016 Summer Paralympic Games.A total 3657 athletes from 78 countries, representing 83.4% all at Games, were monitored on web-based illness surveillance system over 51 198 athlete days during Games. Injury data obtained daily teams with their own medical support.A 510 injuries reported 14-day Games period, an rate (IR) 10.0 per 1000 (12.1% surveyed). The highest IRs for football 5-a-side (22.5), judo (15.5)...

10.1136/bjsports-2017-098039 article EN British Journal of Sports Medicine 2017-10-13

Abstract Background Many individuals with a spinal cord injury (SCI) have lived several decades their injury, leading to need for deeper understanding of factors associated healthy aging in people long‐term SCI. Objectives To (1) describe secondary health conditions, activity limitations, and life satisfaction older adults SCI, (2) investigate how sociodemographics, characteristics, conditions are limitations satisfaction. Design Cross‐sectional descriptive cohort study. Setting Home...

10.1016/j.pmrj.2016.09.004 article EN PM&R 2016-09-17
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