| Re-evaluating the effect of age on physical activity over the lifespan V Varma, D Dey, A Leroux, J Di, J Urbanek, L Xiao, V Zipunnikov Preventive Medicine 101, 102-108, 2017 | 153 | 2017 |
| Active-to-sedentary behavior transitions, fatigability, and physical functioning in older adults JA Schrack, PL Kuo, AA Wanigatunga, J Di, EM Simonsick, AP Spira, ... The Journals of Gerontology: Series A 74 (4), 560-567, 2019 | 89 | 2019 |
| Association of total daily physical activity and fragmented physical activity with mortality in older adults AA Wanigatunga, J Di, V Zipunnikov, JK Urbanek, PL Kuo, EM Simonsick, ... JAMA network open 2 (10), e1912352-e1912352, 2019 | 80 | 2019 |
| Organizing and analyzing the activity data in NHANES A Leroux, J Di, E Smirnova, EJ Mcguffey, Q Cao, E Bayatmokhtari, ... Statistics in Biosciences 11 (2), 262–287, 2019 | 79 | 2019 |
| Analysis of Hearing Loss and Physical Activity Among US Adults Aged 60-69 Years PL Kuo, J Di, L Ferrucci, FR Lin JAMA Netw Open 4 (4), e215484, 2021 | 44 | 2021 |
| Patterns of sedentary and active time accumulation are associated with mortality in US adults: The NHANES study J Di, A Leroux, U Jacek, R Varadhan, A Spira, J Schrack, V Zipunnikov bioRxiv 182337, 2017 | 44 | 2017 |
| Epidemiology of objectively measured bedtime and chronotype in US adolescents and adults: NHANES 2003–2006 JK Urbanek, AP Spira, J Di, A Leroux, C Crainiceanu, V Zipunnikov Chronobiology international 35 (3), 416-434, 2018 | 42 | 2018 |
| Joint and Individual Representation of Domains of Physical Activity, Sleep, and Circadian Rhythmicity J Di, A Spira, J Bai, J Urbanek, A Leroux, M Wu, S Resnick, E Simonsick, ... Statistics in Biosciences 11 (2), 371–402, 2019 | 36 | 2019 |
| Demographic characteristics associated with circadian rest-activity rhythm patterns: a cross-sectional study J Li, VK Somers, F Lopez-Jimenez, J Di, N Covassin International Journal of Behavioral Nutrition and Physical Activity 18, 1-12, 2021 | 34 | 2021 |
| Total volume of physical activity: TAC, TLAC or TAC (λ) VR Varma, D Dey, A Leroux, J Di, J Urbanek, L Xiao, V Zipunnikov Preventive medicine 106, 233-235, 2018 | 27 | 2018 |
| Development of digital measures for nighttime scratch and sleep using wrist-worn wearable devices N Mahadevan, Y Christakis, J Di, J Bruno, Y Zhang, ER Dorsey, ... NPJ Digital Medicine 4 (1), 42, 2021 | 23 | 2021 |
| Considerations to address missing data when deriving clinical trial endpoints from digital health technologies J Di, C Demanuele, A Kettermann, FI Karahanoglu, JC Cappelleri, ... Contemporary clinical trials 113, 106661, 2022 | 20 | 2022 |
| Continuous near-infrared spectroscopy demonstrates limitations in monitoring the development of acute compartment syndrome in patients with leg injuries AH Schmidt, MJ Bosse, WT Obremskey, RV O’Toole, EA Carroll, ... JBJS 100 (19), 1645-1652, 2018 | 18 | 2018 |
| Perfusion pressure lacks diagnostic specificity for the diagnosis of acute compartment syndrome AH Schmidt, J Di, V Zipunnikov, KP Frey, DO Scharfstein, RV O'Toole, ... Journal of orthopaedic trauma 34 (6), 287-293, 2020 | 16 | 2020 |
| Fragmentation as a novel measure of stability in normalized trajectories of mood and attention measured by ecological momentary assessment. JT Johns, J Di, K Merikangas, L Cui, J Swendsen, V Zipunnikov Psychological Assessment 31 (3), 329, 2019 | 13 | 2019 |
| Rest-activity rhythm is associated with obesity phenotypes: a cross-sectional analysis J Li, S Vungarala, VK Somers, J Di, F Lopez-Jimenez, N Covassin Frontiers in Endocrinology 13, 907360, 2022 | 12 | 2022 |
| Brain amyloid burden, sleep, and 24-hour rest/activity rhythms: screening findings from the Anti-Amyloid Treatment in Asymptomatic Alzheimer’s and Longitudinal Evaluation of … AP Spira, V Zipunnikov, R Raman, J Choi, J Di, J Bai, CM Carlsson, ... Sleep Advances 2 (1), zpab015, 2021 | 11 | 2021 |
| Novel metrics for growth model selection MR Grigsby, J Di, A Leroux, V Zipunnikov, L Xiao, C Crainiceanu, ... Emerging themes in epidemiology 15, 1-10, 2018 | 9 | 2018 |
| Decentralized clinical trials and rare diseases: a drug information association innovative design scientific working group (DIA-IDSWG) perspective M Ghadessi, J Di, C Wang, K Toyoizumi, N Shao, C Mei, C Demanuele, ... Orphanet Journal of Rare Diseases 18 (1), 79, 2023 | 7 | 2023 |
| Comparing Three Wearable Accelerometers to Measure Early Activity after Cardiac Surgery CH Brown IV, L Yanek, R Healy, T Tsay, J Di, L Goeddel, D Young, ... JTCVS Open 11, 176-191, 2022 | 7 | 2022 |
Vadim ZipunnikovJohns Hopkins Bloomberg School of Public HealthVerified email at jhu.edu
