Pitt | Swanson Engineering
Chambers, April J
Bioengineering Department
Chambers, April J
Faculty
Research Assistant Professor
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PhD in Bioengineering, University of Pittsburgh, 2011

MS in Bioengineering, University of Pittsburgh, 2005

BS in Bioengineering, University of Pittsburgh, 2003

Aging

Amputees

Balance

Biomechanics

Ergonomics

Falls

Footwear

Gait

Human engineering

Injury prevention

Gait biomechanics, injury prevention, ergonomics, fatigue, prosthetics, human performance enhancement engineering.

(2003) University of Pittsburgh Outstanding Biomechanics Student.

(2003) Summa Cum Laude.

(1999) Engineering & University Dean's List.

(1999) Honors Engineering Scholar.

(1999) University of Pittsburgh Ambassador Scholar.

(1999) University Scholar.

(1999) University of Pittsburgh Marching Band.

Chambers, A., and Cham, R., 2014, "Shoe-floor frictional requirements during gait after experiencing an unexpected slip," To appear in IIE Transactions on Occupational Ergonomics and Human Factors.

Smith, L.J., Trout, J.M., Sridharan, S.S., Guyer, J.R., Owens, G.E., Chambers, A., and Rosen, C.A., 2014, "Comparison of Microsuspension Laryngoscopy Positions: A Randomized, Prospective Study," To appear in The Laryngoscope.

McCrory, J.L., Chambers, A., Daftary, A., and Redfern, M.S., 2013, "The Pregnant "Waddle": An Evaluation of Torso Kinematics in Pregnancy," Journal of Biomechanics, Manuscript submitted for publication.

Chambers, A.J., and Cham, R., In press, "The impact of anticipating slippery floors on spatiotemporal gait characteristics including gait speed control strategies in young and older adults," IIE.

Chambers, A.J., and Cham, R., In press, "The impact of experiencing an unexpected slip on the slip risk of gait trials following slip exposure without additional awareness," Ergonomics.

Chambers, A., Owens, G.E., Trout, J., Livengood, H., Baker, N., Nau, A., and Cham, R., 2014, "Effect of Vision Loss on Performance of Standard Peg Tests," 2014 Annual Meeting of the World Congress of Biomechanics, Boston, NE.

Chambers, A., Parise, E., McCrory, J.L., and Cham, R., 2014, "A comparison of prediction equations for the estimation of body fat in non-obese and obese elderly adults in the United States," The Journal of Nutrition, Health & Aging, Epub.

Beschorner, K.E., Albert, D.L., Chambers, A., and Redfern, M.S., 2014, "Fluid pressures at the shoe-floor-contaminant interface during slips: effects of tread & implications on slip severity," Journal of Biomechanics, vol.47, pp. 458-463.

McCrory, J.L., Chambers, A., and Redfern, M.S., 2014, "Ground reaction forces during stairlocomotion in pregnant fallers and non-fallers.," Clinical Biomechanics, vol.29, pp. 143-8.

Runhaar, J., Trout, J.M., Chambers, A., Bierma-Zeinstra, S.M., and Tashman, S., 2014, "OARSI Scholarship: Knee kinematics during gait in obese and normal-weight women using high-speed biplane radiography," 2043 Annual Meeting of the Osteoarthritis Research Society International, Paris, France.

Smith, L.J., Trout, J.M., Sridharan, S.S., Guyer, J.R., Owens, G.E., Chambers, A., and Rosen, C.A., 2014, "Comparison of Microsuspension Laryngoscopy Positions: A Randomized, Prospective Study," 2014 Annual Meeting of the American Laryngological Association, Las Vegas, NV.

Chambers, A., and Cham, R., 2013, "The impact of anticipating slippery floors on spatiotemporal gaitcharacteristics including gait speed control strategies in young and older adults.," IIE Transactions on Occupational Ergonomics and Human Factors, vol.1, no.3, pp. 166-175.

2013, "Diagnostic Tool for Dysphagia," Proceedings of the 2013 Rice University Beyond Traditional Borders Design Competition, Houston, TX.

Albert, D., Ledgerwood, A., Chambers, A., Redfern, M., and Beschorner, K., 2013, "Effect of Shoe Tread Depth on Foot Slipping Kinematics," Proceedings of the 2013 Annual Meeting of the American Society of Biomechanics, Omaha, NE.

Guyer, J.R., Owens, G.E., Trout, J.M., Smith, L.J., Rosen, C.A., and Chambers, A., 2013, "Ergonomic Analysis of Microlaryngoscopy Using Surface Electromyography.," University of Pittsburgh Science 2011, Pittsburgh, PA.

Haney, J., Redfern, M.S., Huppert, T., and Chambers, A., 2013, "Effects of Prolonged Standing on Oxygen Saturation in the Soleus and Erector Spinae Muscles of the Lower Back Using Near Infrared Spectroscopy," 2013 Annual Meeting of the American Society of Biomechanics, Omaha, NE.

Kolling, A., Montgomery, J., McCrory, J.L., Cham, R., and Chambers, A., 2013, "Impact of Obesity on Anthropometric Predictors of Body Fat in Older Adults," Proceedings of the 2013 Annual Meeting of the American Society of Biomechanics, Omaha, NE.

Luther, A., Chambers, A., and Cham, R., 2013, "Kinematic Analysis of Foot Clearance During Stair Ambulation in Older Adult Unilateral Transfemoral Amputees," 7th Annual Research Day on Aging, Pittsburgh, PA.

Luther, A., Chambers, A., and Cham, R., 2013, "Kinematic Analysis of Foot Clearance During Stair Ambulation in Older Adult Unilateral Transfemoral Amputees," Proceedings of the 2013 Annual Meeting of the American Society of Biomechanics, Omaha, NE.

McCrory, J.L., Chambers, A., Daftary, A., and Redfern, M.S., 2013, "Ground reaction forces during stair locomotion in pregnancy," Gait and Posture, vol.38, no.4, pp. 684-690.

McCrory, J.L., Chambers, A., Daftary, A., and Redfern, M.S., 2013, "Within-subject variability of step width and trunk kinematics during gait in pregnant fallers and non-fallers," 2013 Annual Meeting of the American College of Sports Medicine, Indianapolis, IN.

Merrill, Z., Sandrian, P., and Cham, R., 2013, "Young Adults Have Higher Arm Elevation Than Older Adults During Unexpected Slips.," Proceedings of the 2013 Annual Meeting of the American Society of Biomechanics, Omaha, NE.

O'Connell, C., Cham, R., and Chambers, A., 2013, "Comparison of Knee Kinematics in Older Adults with Unilateral Transfemoral Amputation During Baseline Walking and Ramp Descent," Proceedings of the 2013 Annual Meeting of the American Society of Biomechanics, Omaha, NE.

Sibiy, C., Luther, A., Chambers, A., and Cham, R., 2013, "Development of a Geometric Model to Determine Inertial Parameters in Amputees," Proceedings of the 2013 Annual Meeting of the American Society of Biomechanics, Omaha, NE.

Siviy, C.J., Luther, A.J., Chambers, A., and Cham, R., 2013, "Development of a Geometric Model to Determine Inertial Parameters in Elderly Amputees," 7th Annual Research Day on Aging, Pittsburgh, PA.

Sukits, A.L., Nebes, R., Chambers, A., Ledgerwood, A.T., Perera, S., and Cham, R., 2013, "Intra-individual variability in gait and in cognitive performance are not related in the elderly," Aging, Neuropsychology and Cognition, Epub.

Chambers, A., and Redfern, M.R., 2012, "Application of Near-infrared Spectroscopy in Human Factors and Ergonomics," Proceedings of the 2012 Human Factors and Ergonomics Society, Boston, MA.

Chambers, A.J., Sukitis, A.L., Ledgerwood, A.T., Haney, J.M., Cham, R., Aizenstein, H.J., and Nebes, R.D., 2012, "Effects of Fractional Anisotropy in the Corpus Callosum as Determined by Diffusion Tensor Imaging on Temporal Variability in Older Adults.," 2012 The Aging Institute of UPMC: Celebrating Research on Aging: Building Collaborations for the Future., Pittsburgh, PA.

Lopez, J., Haney, J., and Chambers, A., 2012, "The Effect of Vision Loss on the Time to Complete Upper Extremity Peg Tasks," Proceedings of the 2012 Biomedical Engineering Society, Atlanta, GA.

Parise, E., Chambers, A., McCrory, J.L., and Cham, R., 2012, "The Impact of Obesity of Predicting Body Fat Percentage in Older Adults," 2012 The Aging Institute of UPMC: Celebrating Research on Aging: Building Collaborations for the Future, Pittsburgh, PA.

Parise, E., Chambers, A., McCrory, J.L., and Cham, R., 2012, "The Impact of Obesity of Predicting Body Fat Percentage in Older Men," Proceedings of the 2012 Annual Meeting of the American Society of Biomechanics, Gainesville, FL.

Parise, E., Chambers, A., McCrory, J.L., and Cham, R., 2012, "The Impact of Obesity of Predicting Body Fat Percentage in Older Women," Proceedings of the 2012 Biomedical Engineering Society, Atlanta, GA.

Sukits, A.L., Ledgerwood, A.T., Haney, J.M., Chambers, A., Cham, R., Aizenstein, H.J., and Nebes, R.D., 2012, "Effects of Fractional Anisotropy in the Corpus Callosum as Determined by Diffusion Tensor Imaging on Temporal Variability in Older Adults," 2012 The Aging Institute of UPMC: Celebrating Research on Aging: Building Collaborations for the Future, Pittsburgh, PA.

Sukits, A.L., Ledgerwood, A.T., Haney, J.M., Chambers, A., Cham, R., Aizenstein, H.J., and Nebes, R.D., 2012, "Effects of Fractional Anisotropy in the Corpus Callosum as Determined by Diffusion Tensor Imaging on Temporal Variability in Older Adults," Proceedings of the 2012 Annual Meeting of the American Society of Biomechanics, Gainesville, FL.

Chambers, A., Cham, R., and Mahboobin, A., 2011, "Insights into the role of proactive strategies in postural responses to slips using gait simulations," 2011 The Aging Institute of UPMC: Celebrating Research on Aging: Building Collaborations for the Future, Pittsburgh, PA.

Chambers, A.J., Sukits, A.L., McCrory, J.L., and Cham, R., 2011, "Differences in geriatric anthropometric data between DXA-based subject-specific estimates and non-age-specific traditional regression models.," Journal of Applied Biomechanics, vol.27, no.3, pp. 197-206.

McCrory, J.L., Chambers, A.J., Daftary, A., and Redfern, M.S., 2011, "Ground reaction forces during gait in pregnant fallers and non-fallers.," Gait & Posture, vol.34, no.4, pp. 524-8.

McCrory, J.L., Chambers, A.J., Daftary, A., and Redfern, M.S., 2011, "The effect of pregnancy on ground reaction forces during stair locomotion," "The effect of pregnancy on ground reaction forces during stair locomotion," vol.43, no.5, S110.

Parise, E., Moore, S., Beluk, N., Chambers, A., Huppert, T., and Redfern, M.S., 2011, "Development of Near Infrared Spectroscopy for use in evaluating long term standing and walking fatigue," University of Pittsburgh Science 2011, Pittsburgh, PA.

Chambers, A.J., Sukits, A.L., McCrory, J.L., and Cham, R., 2010, "The effect of obesity and gender on body segment parameters in older adults.," Clinical Biomechanics (Bristol, Avon), vol.25, no.2, pp. 131-6.

McCrory, J.L., Chambers, A., Daftary, A., and Redfern, M.S., 2010, "The effect of pregnancy on ground reaction forces during gait.," Medicine and Science in Sports and Exercise.

McCrory, J.L., Chambers, A., Daftary, A., and Redfern, M.S., 2010, "The effect of pregnancy on ground reaction forces during walking," Proceedings of the 2010 meeting of the American College of Sports Medicine, Baltimore, MD.

McCrory, J.L., Chambers, A.J., Daftary, A., and Redfern, M.S., 2010, "Dynamic postural stability during advancing pregnancy.," Journal of biomechanics, vol.43, no.12, pp. 2434-9.

McCrory, J.L., Chambers, A.J., Daftary, A., and Redfern, M.S., 2010, "Dynamic postural stability in pregnant fallers and non-fallers.," BJOG : an international journal of obstetrics and gynaecology, vol.117, no.8, pp. 954-62.

McCrory, J.L., Chambers, A.J., Daftary, A., and Redfern, M.S., 2010, "The effect of pregnancy on ground reaction forces during gait," Medicine and Science in Sports and Exercise, vol.42, no.S193.

Sukits, A.L., Chambers, A.J., Cham, R., and Nebes, R.D., 2010, "The effect of a subject-specific dual-task on standing balance," Providence, RI.

Enders, L.A., Berger, K., Chambers, A., Redfern, R., and McCrory, J.L., 2009, "Biomechanical evidence of waddling during pregnancy," Proceedings of the 2009 Biomedical Engineering Society, Pittsburgh, PA.

Gil, A.B., Sparto, P.J., Chambers, A.J., Cham, R., and Fitzgerald, G.K., 2009, "Relationship between physical function and stiffened pattern of movement during gait in patients with knee osteoarthritis," Proceedings of the 2009 International Society of Posture and Gait Research, Bologna, Italy.

McCrory, J.L., Chambers, A., Daftary, A., and Redfern, M.S., 2009, "The effect of pregnancy on ground reaction forces during walking," Proceedings of the 2009 Mid-Atlantic Chapter of the American College of Sports Medicine, Harrisburg, PA.

Wyszomierski, S.A., Chambers, A.J., and Cham, R., 2009, "Knee strength capabilities and slip severity.," Journal of applied biomechanics, vol.25, no.2, pp. 140-8.

Chambers, A.J., McCrory, J.L., Sukits, A.L., and Cham, R., 2008, "Anthropometric parameters in the elderly: a dxa-based study," Proceedings of the 2008 North American Congress on Biomechanics, Ann Arbor, MI.

O'Loughlin, M., Chambers, A.J., Bohnen, N.I., and Cham, R., 2008, "Striatal dopaminergic denervation and peak slip velocity during gait," Proceedings of the 2008 Biomedical Engineering Society., St. Louis, MO.

Sukits, J.W., Chambers, A.J., McCrory, J.L., and Cham, R., 2008, "Head and trunk anthropometric parameters in the elderly," St. Louis, MO.

Chambers, A.J., and Cham, R., 2007, "Slip-related muscle activation patterns in the stance leg during walking.," Gait & posture, vol.25, no.4, pp. 565-72.

Chambers, A.J., and Cham, R., 2007, "The impact of anticipating slippery floors on spatial and temporal variability during gait," Proceedings of the 2007 International Society of Posture and Gait Research, Burlington, VT.

McNeal, A., Chambers, A.J., Cham, R., and Bohnen, N.I., 2006, "Aging-related dopamine denervation in the basal ganglia and balance in sway-referenced visual environments," Proceedings of the 2006 American Society Biomechanics, Blacksburg, VA.

Moyer, B.E., Chambers, A.J., Redfern, M.S., and Cham, R., 2006, "Gait parameters as predictors of slip severity in younger and older adults.," Ergonomics, vol.49, no.4, pp. 329-43.

Wyszomierski, S., Chambers, A.J., and Cham, R., 2006, "Knee strength and slip severity in young and older Adults," Proceedings of the 2006 American Society Biomechanics, Blacksburg, VA.

Chambers, A.J., and Cham, R., 2005, "Anticipation of slippery floors: muscle onsets and co-contraction of the stance leg," Proceedings of the 2005 American Society Biomechanics, Cleveland, OH.

Moyer, B.E., Chambers, A.J., Redfern, M.S., and Cham, R., 2004, "Initial condition variables and age group as determinates of slip severity.," Proceedings of the 2004 American Society Biomechanics, Portland, OR.

Chambers, A.J., Bieryla, K., and Cham, R., 2003, "Slip anticipation effects on hip/knee kinematics part 2: gait on glycerol contaminated floors," Proceedings of the 2003 American Society Biomechanics, Toledo, OH.

Chambers, A.J., Margerum, S., and Cham, R., 2003, "Kinematics of the foot during slips," Occupational Ergonomics, vol.3, pp. 225-234.

Bieryla, K., Chambers, A.J., and Cham, R., 2003, "Slip anticipation effects on hip/knee kinematics part 1: gait on dry floors.," Proceedings of the 2003 American Society Biomechanics, Toledo, OH.

Chambers, A.J., and Cham, R., "Anticipation of slippery floors: Muscle onsets and co-contraction of the stance leg," IVth World Congress of Biomechanics, Cleveland, OH.

Chambers, A.J., Cham, R., and Mahboobin, A., "Insights into the role of proactive strategies inpostural responses to slips using gait simulations.," Proceedings of the 2011 American Society of Biomechanics, Long Beach, CA.

Chambers, A., 2014, "The Importance of Slip, Trip, and Fall Prevention," NASA: Kennedy Space, Kennedy Space Center, FL.

Chambers, A., 2013, "Injury Prevention at the Human Movement and Balance Laboratory: Slips,Amputees & Long Term Standing," University of Wisconsin Milwaukee Department of, Milwaukee, WI.

McCrory, J.L., Chambers, A., Daftary, A., and Redfern, M.S., 2013, "Within-subject variability of stepwidth and trunk kinematics during gait in pregnant fallers and non-fallers.," 2013 Annual Meeting of the American College of Sports Medicine, Indianapolis, IN.

Chambers, A., 2012, "Injury Prevention at the Human Movement and Balance Lab," University of Pittsburgh Department of Bioengineering Graduate Seminar, Pittsburgh, PA.

Chambers, A., 2012, "The Impact of Slip Exposure on Gait.," National Institute for Occupational Safety and Health Office of Mine Safety and Health Research, Pittsburgh, PA.

Chambers, A.J., and Burdett, R., 2012, "Effectiveness of Microprocessor and Nonmicroprocessor Prosthetic Knees.," Centers for Medicare & Medicaid Services, Washington, DC.

Chambers, A.J., and Cham, R., 2012, "Changes in Spatiotemporal Gait Characteristics When Anticipating Slippery Floors in Young and Older Adults," Proceedings of the 2012 Annual Meeting of the American Society of Biomechanics, Gainesville, FL.

Chambers, A.J., Parise, E., McCrory, J.L., and Cham, R., 2012, "The Impact of Obesity of Predicting Body Fat Percentage in Older Adults," 2012 The Aging Institute of UPMC: Celebrating, Pittsburgh, PA.

Chambers, A.J., Sukitis, A.L., Ledgerwood, A.T., Haney, J.M., Cham, R., Aizenstein, H.J., and Nebes, R.D., 2012, "Effects of Fractional Anisotropy in the Corpus Callosum as Determined by Diffusion Tensor Imaging on Temporal Variability in Older Adults," 2012 The Aging Institute of UPMC: Celebrating Research on Aging: Building Collaborations for the Future, Pittsburgh, PA.

2012, "Injury Prevention at the Human Movement and Balance Lab," University of Pittsburgh Department of Bioengineering Graduate Seminar.

2012, "The Impact of Slip Exposure on Gait," National Institute for Occupational Safety and Health Office of Mine Safety and Health Research.

McCrory, J.L., Chambers, A.J., Daftary, A., and Redfern, M.S., 2012, "The effect of pregnancy on torso kinematics during gait.," Proceedings of the 2012 Annual Meeting of the American College of Sports Medicine, San Francisco, CA.

Mehta, R., Maikala, R., Ferguson, S., Parasuraman, R., Redfern, M.R., and Chambers, A.J., 2012, "Application of Near-infrared Spectroscopy in Human Factors and Ergonomics, A Panel Discussion," Proceedings of the 2012 Human Factors and Ergonomics Society, Boston, MA.

Sukits, A.L., Ledgerwood, A.T., Haney, J.M., Chambers, A.J., Cham, R., Aizenstein, H.J., and Nebes, R.D., 2012, "Effects of Fractional Anisotropy in the Corpus Callosum as Determined by Diffusion Tensor Imaging on Temporal Variability in Older Adults," "Effects of Fractional Anisotropy in the Corpus Callosum as Determined by Diffusion Tensor Imaging on Temporal Variability in Older Adults," Gainesville, FL.

Chambers, A., 2011, "A Research Overview," University of Pittsburgh Swanson School of Engineering Visiting Committee, Pittsburgh, PA.

Chambers, A., Cham, R., and Mahboobin, A., 2011, "Insights into the role of proactive strategies in postural responses to slips using gait simulations (Simulia Computational Biomechanics Award Finalist)," American Society of Biomechanics, Long Beach, CA.

Chambers, A., Cham, R., and Mahboobin, A., 2011, "Insights into the role of proactive strategies in postural responses to slips using gait simulations," 5th Annual Research Day, The Aging Institute of University of Pittsburgh Medical Center (UPMC).

Chambers, A., 2014, "Endoscope Case, Provisional Patent to be Filed."

Chambers, A., 2013, "Incentive Oral Exercise Device for the Treatment of Dysphagia, Provisional Patent to be Filed.."

Chambers, A., 2014, "Prosthetic Implant for Medialization Thyroplasty, Patent Filed," Pitt Ref No.: 02807.

Chambers, A., 2013, "Sharps Depot, " An automated sharps counter for saving time, safely", Provisional Patent Filed," Pitt Ref No.: 03101.

Chambers, A., 2012, "Universal BIO-Thyroplant for Medialization Thyroplasty, Provisional Patent Filed," Pitt Ref No.: 02007.