Publications

• Corrigan P, Lewis CL, Costello KE, Kumar D, Felson DT, Neogi T, Bacon K, LaValley MP, Guermazi A, Roemer F, Nevitt MC, Lewis CE, Torner J, Stefanik JJ. Relation of vertical ground reaction forces while walking to contralateral structural worsening in adults with Knee Osteoarthritis: The multicenter osteoarthritis study. Clinical Biomechanics  [link to pdf]
• Kim E, Lee S, Dolinsky J, Cha B, Kumar D. Associations of quadriceps activation during step-up with pain during movement and physical function in people with knee osteoarthritis. Clinical Biomechanics [link to pdf]
• Lee S, Kim E, Duolikun D, Cha B, Ferre CL, Yücel M, Kumar D. Prefrontal cortex function and gait alterations during single- and dual-task walking in knee osteoarthritis. PLOS ONE [link to pdf]
• Shah N, Morris M, Cohn E, Morone M, Ellis T, Kumar D. Participant Experiences in Using a Telehealth Mindful Exercise Program for Knee Osteoarthritis: A Qualitative Study. Journal of  Integrative and Complementary Medicine [link to pdf]
• Lee S, Kim E, Cha B, Ferre CL, Yücel M, Kumar D. Prefrontal cortex activation during daily movements and its association with clinical symptoms in knee osteoarthritis. Osteoarthritis and Cartilage Open [link to pdf]
• Lee S, Neogi T, Senderling Ben, Jafarzadeh SR, Gheller M, Georgiev P, Demanuele C, Viktrup L, Wacnik P, Kumar D. Association of pain during exercise with exercise-induced hypoalgesia in people with knee osteoarthritis. Arthritis Care and Research [link to pdf]
• Neogi T, Dubreuil M, Peloquin C, Marinko L, Camarinos J, Felson DT, Kumar D. Association of physical therapy care with utilization of intra-articular injections in people with knee osteoarthritis: a real-world cohort study. Arthritis and Rheumatology [link to pdf]
• Kim E, Neogi T, Lee s, Kumar D. Relation of pain sensitization to knee loading during walking in people with knee osteoarthritis. Osteoarthritis and Cartilage [link to pdf]

2024

• Han X, Yu J, Wang W, Fang G, Gill S, Zhang Z, Wang S, Saito J, Kumar D, Luo Z, Whiting E, Wang CCL. Motion-driven neural optimizer for prophylactic braces made by distributed microstructures. SIGGRAPH ASIA [link to pdf]
• Shah N, Morone N, Kim E, Ellis TD, Cohn E, LaValley MP, Kumar D. Telehealth mindful exercise for people with knee osteoarthritis: a decentralized feasibility randomized controlled trial. Osteoarthritis and Cartilage Open [link to pdf]
• Shah N, Borrelli B, Kumar D. Perceptions about smartphone-based interventions to promote physical activity in inactive adults with knee pain. Disability and Rehabilitation: Assistive Technology [link to pdf]
• Lee S, Neogi T, Wang N, Frey-Law L, Torabian KT, Aoyagi K, Stefanik J, Carlesso LC, Hausdorff J, Gazit E, Segal N, Lewis CE, Nevitt M, Kumar D. Associations of Pain Sensitivity and Conditioned Pain Modulation with Physical Activity in Knee Osteoarthritis: The Multicenter Osteoarthritis Study. Osteoarthritis and Cartilage [link to pdf]
• Bacon KL, Felson DT, Jafarzadeh SR, Kolachalama VB, Hausdorff JM, Gazit E, Stefanik JJ, Corrigan P, Segal NA, Lewis CE, Nevitt MC, Kumar D. Gait alterations associated with worsening knee pain and physical function: a machine-learning approach with wearable sensors in the Multicenter Osteoarthritis Study. Arthritis Care and Research [link to pdf]
• Surendran T, Park LK, Lauber MV, Cha B, Jhun RS, Capellini TD, Kumar D, Felson DT, Kolachalama VB. Survival analysis on subchondral bone length for total knee replacement. Skeletal Radiology [link to pdf]
• Neelapala YVR, Neogi T, Kumar D, Jarraya M, Macedo L, Kobsar D, Hanna S, Frey-Law LA, Lewis CE, Nevitt M, Appleton T, Birmingham T, Carless L. Exploring pain phenotypes in people with early knee osteoarthritis and their associations with pain worsening. Osteoarthritis and Cartilage [link to pdf]

2023

• Han X, Senderling B, To S, Kumar D, Whiting E, Saito J. GroundLink: A dataset unifying human body movement and ground reaction dynamics. SIGGRAPH ASIA [link to pdf]
• Lee S, Neogi T, Costello KE, Senderling B, Stefanik JJ, Frey-Law L, Kumar D. Association of mechanical temporal summation of pain with muscle co-contraction during walking in people with knee osteoarthritis. Clinical Biomechanics [link to pdf]
• Costello KE, Felson DT, Jafarzadeh SR, Guermazi A, Roemer FW, Segal NA, Lewis CE, Nevitt MC, Lewis CL, Kolachalama VB, Kumar D. Gait, physical activity and tibiofemoral cartilage damage: a longitudinal machine learning analysis in the Multicenter Osteoarthritis Study. British Journal of Sports Medicine [link to pdf]
• Kumar D, Neogi T, Peloquin C, Marinko L, Camarinos J, Aoyagi K, Felson DT, Dubreuil M. Delayed timing of physical therapy initiation increases the risk of future opioid use in individuals with knee osteoarthritis: a real-world cohort study. British Journal of Sports Medicine [link to pdf]
• Rose MJ, Neogi T, Friscia B, Torabian KA, LaValley MP, Gheller M, Adamowicz L, Georgiev P, Viktrup L, Demanuele C, Wacnik PW, Kumar D. Reliability of wearable sensors for assessing gait and chair stand function at home in people with knee osteoarthritis. Arthritis Care and Research [link to pdf]

2022

• Bacon KL, Felson DT, Jafarzadeh SR, Kolachalama VB, Hausdorff JM, Gazit E, Segal NA, Lewis CE, Nevitt MC, Kumar D. Relation of gait measures with mild unilateral knee pain during walking using machine learning. Scientific Reports [link to pdf]
• Rose MJ, LaValley MP, Jafarzadeh SR, Costello KE, Shah N, Lee S, Borrelli B, Messier SP, Neogi T, Kumar D. Impact of COVID-19 Pandemic on Physical Activity, Pain, Mood, and Sleep in Adults With Knee Osteoarthritis. Journal for the Measurement of Physical Behaviour [link to pdf]
• Endrighi R, Zhao Y, Hughes RB, Kumar D, Borrelli B. Associations Between Smoking Status and Physical and Mental Health-Related Quality of Life Among Individuals With Mobility Impairments. Annals of Behavioral Medicine [link to pdf]
• Shah N, Kramer J, Borrelli B, Kumar D. Interrelations between factors related to physical activity in inactive adults with knee pain. Disability and Rehabilitation. 2022 [link to pdf]
• Shah N, Costello K, Mehta A, Kumar D. Applications of Digital Health Technologies in Knee Osteoarthritis: Narrative Review. JMIR Rehabilitation and Assistive Technologies [link to pdf]
• Rose MJ, Costello KE, Eigenbrot S, Torabian K, Kumar D. Inertial Measurement Units and Application for Remote Health Care in Hip and Knee Osteoarthritis: Narrative Review. JMIR Rehabilitation and Assistive Technologies [link to pdf]
• Aoyagi K, Liew JW, Farrar JT, Wang N, Carlesso L, Kumar D, Frey Law L, Lewis CE, Nevitt M, Neogi T. Does weight-bearing versus non-weight-bearing pain reflect different pain mechanisms in knee osteoarthritis?: the Multicenter Osteoarthritis Study (MOST). Osteoarthritis and Cartilage [link to pdf]

2021

• Aoyagi K, Neogi T, Peloquin C, Dubreuil M, Marinko L, Camarinos J, Felson DT, Kumar D. Association of Physical Therapy Interventions With Long-term Opioid Use After Total Knee Replacement. JAMA Network Open [link to pdf]
• Kumar D, Link TM, Jafarzadeh SR, LaValley MP, Majumdar S, Souza RB. Association of Quadriceps Adiposity With an Increase in Knee Cartilage, Meniscus, or Bone Marrow Lesions Over Three Years. Arthritis Care and Research [link to pdf]
• Costello KE, Felson DT, Neogi T, Segal NA, Lewis CE, Gross KD, Nevitt MC, Lewis CL, Kumar D. Ground reaction force patterns in knees with and without radiographic osteoarthritis and pain: descriptive analyses of a large cohort (the Multicenter Osteoarthritis Study). Osteoarthritis and Cartilage [link to pdf]
• Brown C, Marinko L, LaValley MP, Kumar D. Quadriceps Strength After Anterior Cruciate Ligament Reconstruction Compared With Uninjured Matched Controls: A Systematic Review and Meta-analysis. Orthopedic Journal of Sports Medicine [link to pdf]

2020 and earlier

• Costello KE, Eigenbrot S, Geronimo A, Guermazi A, Felson DT, Richards J, Kumar D. Quantifying varus thrust in knee osteoarthritis using wearable inertial sensors: A proof of concept. Clinical Biomechanics 2020 [link to pdf]
• Espinosa SE, Costello KE, Souza RB, Kumar D. Lower knee extensor and flexor strength is associated with varus thrust in people with knee osteoarthritis. Journal of Biomechanics. 2020 [link to pdf]
• Porciuncula F, Roto AV, Kumar D, Davis I, Roy S, Walsh CJ, Awad LN. Wearable Movement Sensors for Rehabilitation: A Focused Review of Technological and Clinical Advances. Physical Medicine and Rehabilitation 2018 [link to pdf]
• Kumar D, Wyatt C, Lee S, Okazaki N, Chiba K, Link TM, Souza RB, Majumdar S. Sagittal plane walking patterns are related to MRI changes over 18-months in people with and without mild-moderate hip osteoarthritis. Journal of Orthopedic Research 2018 [link to pdf]
• Kumar D, Su F, Wu D, Pedoia V, Heitkamp L, Ma CB, Souza RB, Li X. Frontal Plane Knee Mechanics and Early Cartilage Degeneration in People With Anterior Cruciate Ligament Reconstruction: A Longitudinal Study. American Journal of Sports Medicine 2018 [link to pdf]
• Gallo MC, Wyatt C, Pedoia V, Kumar D, Lee S, Nardo L, Link TM, Souza RB, Majumdar S. T1ρ and T2 relaxation times are associated with progression of hip osteoarthritis. Osteoarthritis and Cartilage. 2016 [link to pdf]
• Calixto NE, Kumar D, Subburaj K, Singh J, Schooler J, Nardo L, Li X, Souza RB, Link TM, Majumdar S. Zonal differences in meniscus MR relaxation times in response to in vivo static loading in knee osteoarthritis. Journal of Orthopedic Research. 2016 [link to pdf]
• Li X, Pedoia V, Kumar D, Rivoire J, Wyatt C, Lansdown D, Amano K, Okazaki N, Savic D, Koff MF, Felmlee J, Williams SL, Majumdar S. Cartilage T1ρ and T2 relaxation times: longitudinal reproducibility and variations using different coils, MR systems and sites. Osteoarthritis and Cartilage. 2015 [link to pdf]
• Samaan MA, Teng HL, Kumar D, Lee S, Link TM, Majumdar S, Souza RB. Acetabular cartilage defects cause altered hip and knee joint coordination variability during gait. Clinical Biomechanics. 2015 [link to pdf]
• McDermott K, Kumar D, Goldman V, Feng H, Mehling W, Moskowitz JT, Souza RB, Hecht FM. Training in ChiRunning to reduce blood pressure: a randomized controlled pilot study. BMC Complementary and Alternative Medicine 2015 [link to pdf]
• Kumar D, Souza RB, Subburaj K, MacLeod TD, Singh J, Calixto NE, Nardo L, Link TM, Li X, Lane NE, Majumdar S. Are There Sex Differences in Knee Cartilage Composition and Walking Mechanics in Healthy and Osteoarthritis Populations?. Clinical Orthopedics and Related Research. 2015 [link to pdf]
• Kumar D, McDermott K, Feng H, Goldman V, Luke A, Souza RB, Hecht FM. Effects of Form-Focused Training on Running Biomechanics: A Pilot Randomized Trial in Untrained Individuals. Physical Medicine and Rehabilitation. 2015 [link to pdf]
• Wyatt C, Kumar D, Subburaj K, Lee S, Nardo L, Narayanan D, Lansdown D, Vail T, Link TM, Souza RB, Majumdar S. Cartilage T1ρ and T2 Relaxation Times in Patients With Mild-to-Moderate Radiographic Hip Osteoarthritis. Arthritis & Rheumatology. 2015 [link to pdf]
• Lee S, Nardo L, Kumar D, Wyatt CR, Souza RB, Lynch J, McCulloch CE, Majumdar S, Lane NE, Link TM. Scoring hip osteoarthritis with MRI (SHOMRI): A whole joint osteoarthritis evaluation system. Journal of Magnetic Resonance Imaging. 2015 [link to pdf]
• Teng HL, MacLeod TD, Kumar D, Link TM, Majumdar S, Souza RB. Individuals with isolated patellofemoral joint osteoarthritis exhibit higher mechanical loading at the knee during the second half of the stance phase. Clinical Biomechanics. 2015 [link to pdf]
• Kumar D, Wyatt C, Chiba K, Lee S, Nardo L, Link TM, Majumdar S, Souza RB. Anatomic correlates of reduced hip extension during walking in individuals with mild-moderate radiographic hip osteoarthritis. Journal of Orthopedic Research. 2015 [link to pdf]
• Pun S, Kumar D, Lane NE. Femoroacetabular impingement. Arthritis & Rheumatology. 2015 [link to pdf]
• MacLeod TD, Subburaj K, Wu S, Kumar D, Wyatt C, Souza RB. Magnetic resonance analysis of loaded meniscus deformation: a novel technique comparing participants with and without radiographic knee osteoarthritis. Skeletal Radiology. 2015 [link to pdf]
• Kumar D, Souza RB, Singh J, Calixto NE, Nardo L, Link TM, Li X, Majumdar S. Physical activity and spatial differences in medial knee T1rho and t2 relaxation times in knee osteoarthritis. Journal of Orthopedic and Sports Physical Therapy. 2014 [link to pdf]
• Kumar D, Kothari A, Souza RB, Wu S, Benjamin Ma C, Li X. Frontal plane knee mechanics and medial cartilage MR relaxation times in individuals with ACL reconstruction: A pilot study. Knee. 2014 [link to pdf]
• Souza RB, Kumar D, Calixto N, Singh J, Schooler J, Subburaj K, Li X, Link TM, Majumdar S. Response of knee cartilage T1rho and T2 relaxation times to in vivo mechanical loading in individuals with and without knee osteoarthritis. Osteoarthritis and Cartilage. 2014 [link to pdf]
• Kumar D, Dillon A, Nardo L, Link TM, Majumdar S, Souza RB. Differences in the association of hip cartilage lesions and cam-type femoroacetabular impingement with movement patterns: a preliminary study. Physical Medicine and Rehabilitation. 2014 [link to pdf]
• Kumar D, Karampinos DC, MacLeod TD, Lin W, Nardo L, Li X, Link TM, Majumdar S, Souza RB. Quadriceps intramuscular fat fraction rather than muscle size is associated with knee osteoarthritis. Osteoarthritis and Cartilage. 2014 [link to pdf]
• Schooler J, Kumar D, Nardo L, McCulloch C, Li X, Link TM, Majumdar S. Longitudinal evaluation of T1ρ and T2 spatial distribution in osteoarthritic and healthy medial knee cartilage. Osteoarthritis and Cartilage. 2014 [link to pdf]
• Kumar D, Swanik CB, Reisman DS, Rudolph KS. Individuals with medial knee osteoarthritis show neuromuscular adaptation when perturbed during walking despite functional and structural impairments. Journal of Applied Physiology. 2014 [link to pdf]
• Kumar D, Subburaj K, Lin W, Karampinos DC, McCulloch CE, Li X, Link TM, Souza RB, Majumdar S. Quadriceps and hamstrings morphology is related to walking mechanics and knee cartilage MRI relaxation times in young adults. Journal of Orthopedic and Sports Physical Therapy. 2013 [link to pdf]
• Kumar D, Wyatt CR, Lee S, Nardo L, Link TM, Majumdar S, Souza RB. Association of cartilage defects, and other MRI findings with pain and function in individuals with mild-moderate radiographic hip osteoarthritis and controls. Osteoarthritis and Cartilage. 2013 [link to pdf]
• Valentinitsch A, Karampinos DC, Alizai H, Subburaj K, Kumar D, Link TM, Majumdar S. Automated unsupervised multi-parametric classification of adipose tissue depots in skeletal muscle. Journal of Magnetic Resonance Imaging. 2013 [link to pdf]
• Kumar D, Manal KT, Rudolph KS. Knee joint loading during gait in healthy controls and individuals with knee osteoarthritis. Osteoarthritis and Cartilage. 2013 [link to pdf]
• Kumar D, Schooler J, Zuo J, McCulloch CE, Nardo L, Link TM, Li X, Majumdar S. Trabecular bone structure and spatial differences in articular cartilage MR relaxation times in individuals with posterior horn medial meniscal tears. Osteoarthritis and Cartilage. 2013 [link to pdf]
• Subburaj K, Kumar D, Souza RB, Alizai H, Li X, Link TM, Majumdar S. The acute effect of running on knee articular cartilage and meniscus magnetic resonance relaxation times in young healthy adults. American Journal of Sports Medicine. 2012 [link to pdf]
• Kumar D, Rudolph KS, Manal KT. EMG-driven modeling approach to muscle force and joint load estimations: case study in knee osteoarthritis. Journal of Orthopedic Research. 2012 [link to pdf]
• Shin CS, Souza RB, Kumar D, Link TM, Wyman BT, Majumdar S. In vivo tibiofemoral cartilage-to-cartilage contact area of females with medial osteoarthritis under acute loading using MRI. Journal of  Magnetic Resonance Imaging. 2011 [link to pdf]
• Maheshwari AV, Malhotra R, Kumar D, Pitcher JD Jr. Rupture of the ilio-psoas tendon after a total hip arthroplasty: an unusual cause of radio-lucency of the lesser trochanter simulating a malignancy. Journal of Orthopedic Surgery and Research. 2010 [link to pdf]
• Maheshwari AV, Kounine MM, Soaita M, Kumar D, Pitcher JD Jr. Osteoporotic insufficiency fractures of the pelvis simulating a malignancy in an elderly man. American Journal of Orthopaedics (Belle Mead NJ). 2009 [link to pdf]
• Aggarwal SR, Kumar D. Lower extremity muscle strength and balance performance in Indian Community dwelling elderly men aged 50 years and above. Indian Journal of Physiotherapy and Occupational Therapy. 2006 [link to pdf]

PREPRINTS (OPEN ACCESS)

1. Yang Y, Okamura M, Kim E, Kumar D. Single-Session feasibility of a wearable music-based rhythmic auditory stimulation device to improve walking in knee osteoarthritis. medRxiv 2024