Brian A Knarr

Summary

Affiliation: University of Delaware
Country: USA

Publications

  1. doi request reprint Practical approach to subject-specific estimation of knee joint contact force
    Brian A Knarr
    Delaware Rehabilitation Institute, University of Delaware, Newark, DE, United States Department of Biomedical Engineering, University of Delaware Newark, DE, United States Electronic address
    J Biomech 48:2897-902. 2015
  2. pmc Sampling frequency impacts measurement of walking activity after stroke
    Brian Knarr
    University of Delaware, 126 Spencer Lab, Newark, DE 19716
    J Rehabil Res Dev 50:1107-12. 2013
  3. pmc Understanding compensatory strategies for muscle weakness during gait by simulating activation deficits seen post-stroke
    Brian A Knarr
    Biomechanics and Movement Science, University of Delaware, Newark, DE, United States
    Gait Posture 38:270-5. 2013
  4. pmc Changes in the activation and function of the ankle plantar flexor muscles due to gait retraining in chronic stroke survivors
    Brian A Knarr
    Biomechanics and Movement Science, University of Delaware, Newark, DE, USA
    J Neuroeng Rehabil 10:12. 2013
  5. pmc Comparison of electromyography and joint moment as indicators of co-contraction
    Brian A Knarr
    Biomechanics and Movement Science, University of Delaware, Newark, DE 19716, United States
    J Electromyogr Kinesiol 22:607-11. 2012
  6. pmc Validation of an adjustment equation for the burst superimposition technique in subjects post-stroke
    Brian A Knarr
    Biomechanics and Movement Science Program, University of Delaware, Newark, Delaware 19716, USA
    Muscle Nerve 46:267-9. 2012
  7. pmc Muscle volume as a predictor of maximum force generating ability in the plantar flexors post-stroke
    Brian A Knarr
    Biomechanics and Movement Science, University of Delaware, Newark, Delaware, 19716, USA
    Muscle Nerve 48:971-6. 2013
  8. doi request reprint Mechanisms used to increase peak propulsive force following 12-weeks of gait training in individuals poststroke
    HaoYuan Hsiao
    Biomechanics and Movement Science Program, University of Delaware, United States Electronic address
    J Biomech 49:388-95. 2016
  9. pmc Mechanisms to increase propulsive force for individuals poststroke
    HaoYuan Hsiao
    Biomechanics and Movement Science Program, University of Delaware, 540 S College Avenue, Suite 201F, Newark, DE, 19716, USA
    J Neuroeng Rehabil 12:40. 2015
  10. pmc Using submaximal contractions to predict the maximum force-generating ability of muscles
    Sarah Flynn
    Department of Physical Therapy, University of Delaware, Newark, Delaware 19716, USA
    Muscle Nerve 45:849-58. 2012

Collaborators

Detail Information

Publications13

  1. doi request reprint Practical approach to subject-specific estimation of knee joint contact force
    Brian A Knarr
    Delaware Rehabilitation Institute, University of Delaware, Newark, DE, United States Department of Biomedical Engineering, University of Delaware Newark, DE, United States Electronic address
    J Biomech 48:2897-902. 2015
    ....
  2. pmc Sampling frequency impacts measurement of walking activity after stroke
    Brian Knarr
    University of Delaware, 126 Spencer Lab, Newark, DE 19716
    J Rehabil Res Dev 50:1107-12. 2013
    ..Sampling epoch must be carefully considered when designing studies aimed at understanding patterns of daily walking activity. ..
  3. pmc Understanding compensatory strategies for muscle weakness during gait by simulating activation deficits seen post-stroke
    Brian A Knarr
    Biomechanics and Movement Science, University of Delaware, Newark, DE, United States
    Gait Posture 38:270-5. 2013
    ..By identifying how muscles can interact, clinicians may be able to develop specific strategies for using gait retraining and orthotic assistance to best address an individual's needs...
  4. pmc Changes in the activation and function of the ankle plantar flexor muscles due to gait retraining in chronic stroke survivors
    Brian A Knarr
    Biomechanics and Movement Science, University of Delaware, Newark, DE, USA
    J Neuroeng Rehabil 10:12. 2013
    ....
  5. pmc Comparison of electromyography and joint moment as indicators of co-contraction
    Brian A Knarr
    Biomechanics and Movement Science, University of Delaware, Newark, DE 19716, United States
    J Electromyogr Kinesiol 22:607-11. 2012
    ..Overall, the application of two co-contraction methods provides a more complete description of muscle co-contraction and joint loading than either method individually...
  6. pmc Validation of an adjustment equation for the burst superimposition technique in subjects post-stroke
    Brian A Knarr
    Biomechanics and Movement Science Program, University of Delaware, Newark, Delaware 19716, USA
    Muscle Nerve 46:267-9. 2012
    ..The objective of this study was to determine the reliability of the MFGA predicted using an adjusted burst superimposition method within a post-stroke population...
  7. pmc Muscle volume as a predictor of maximum force generating ability in the plantar flexors post-stroke
    Brian A Knarr
    Biomechanics and Movement Science, University of Delaware, Newark, Delaware, 19716, USA
    Muscle Nerve 48:971-6. 2013
    ..We assessed the ability of muscle volumes obtained using MRI to estimate the MFGA of the plantar flexor muscle group in individuals post-stroke...
  8. doi request reprint Mechanisms used to increase peak propulsive force following 12-weeks of gait training in individuals poststroke
    HaoYuan Hsiao
    Biomechanics and Movement Science Program, University of Delaware, United States Electronic address
    J Biomech 49:388-95. 2016
    ..In contrast, increases in paretic ankle moment were observed only in the FastFES group. Our findings suggested that specific targeting may be needed to increase ankle moment. ..
  9. pmc Mechanisms to increase propulsive force for individuals poststroke
    HaoYuan Hsiao
    Biomechanics and Movement Science Program, University of Delaware, 540 S College Avenue, Suite 201F, Newark, DE, 19716, USA
    J Neuroeng Rehabil 12:40. 2015
    ..The aim of this study was to quantify the relative contribution of ankle moment and trailing limb angle to increases in propulsive force for individuals poststroke...
  10. pmc Using submaximal contractions to predict the maximum force-generating ability of muscles
    Sarah Flynn
    Department of Physical Therapy, University of Delaware, Newark, Delaware 19716, USA
    Muscle Nerve 45:849-58. 2012
    ..g., after a stroke). Presently, there is no agreed-upon practical method for calculating the MFGA in individuals with central nervous system pathology. The purpose of this study was to identify the best method for determining MFGA...
  11. pmc The relative contribution of ankle moment and trailing limb angle to propulsive force during gait
    HaoYuan Hsiao
    Biomechanics and Movement Science Program, University of Delaware, 547 S College Avenue, Newark, DE 19716, United States Electronic address
    Hum Mov Sci 39:212-21. 2015
    ..Able-bodied individuals preferentially modulate trailing limb angle more than ankle moment to increase propulsive force. Future work will determine if this control strategy can be applied to individuals poststroke. ..
  12. doi request reprint Frontal plane compensatory strategies associated with self-selected walking speed in individuals post-stroke
    Victoria A Stanhope
    Dept of Kinesiology and Applied Physiology, University of Delaware, Newark, DE, USA Electronic address
    Clin Biomech (Bristol, Avon) 29:518-22. 2014
    ..The objective of this study was to investigate the relationship between self-selected walking speed and the kinematic patterns related to paretic foot clearance during post-stroke walking...
  13. pmc Age- and stroke-related skeletal muscle changes: a review for the geriatric clinician
    Jaclyn Megan Sions
    Biomechanics and Movement Science Program, University of Delaware, Newark, USA
    J Geriatr Phys Ther 35:155-61. 2012
    ..Future research directions that include systematic comparison of the differences in skeletal muscle between younger and older adults who have sustained a stroke are suggested...