Justus D. Ortega - Publications

Affiliations: 
University of Colorado, Boulder, Boulder, CO, United States 

18 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2020 Aslan DH, Collette JM, Ortega JD. Bicycling Exercise Helps Maintain a Youthful Metabolic Cost of Walking in Older Adults. Journal of Aging and Physical Activity. 1-7. PMID 32723930 DOI: 10.1123/japa.2019-0327  0.528
2018 Beck ON, Grabowski AM, Ortega JD. Neither total muscle activation nor co-activation explains the youthful walking economy of older runners. Gait & Posture. 65: 163-168. PMID 30558925 DOI: 10.1016/J.Gaitpost.2018.07.169  0.752
2018 Beck ON, Grabowski AM, Ortega JD. Neither total muscle activation nor co-activation explains the youthful walking economy of older runners. Gait & Posture. 65: 163-168. PMID 30059810 DOI: 10.1016/j.gaitpost.2018.07.169  0.752
2017 Aslan DH, Collette JM, Ortega JD. Bicycling for Exercise Helps Maintain a Youthful Metabolic Cost of Walking in Older Adults: 866 Board #45 May 31 3 Medicine and Science in Sports and Exercise. 49: 224. DOI: 10.1249/01.Mss.0000517460.08941.D7  0.518
2016 Carson N, Ortega J. The Effects of Sagittal Plane Postural Alterations on Metabolic Cost in Running: 771 Board #87 June 1, 2: 00 PM - 3: 30 PM. Medicine and Science in Sports and Exercise. 48: 211. PMID 27359914 DOI: 10.1249/01.mss.0000485634.05294.b0  0.316
2015 Beck ON, Kipp S, Roby JM, Grabowski AM, Kram R, Ortega JD. Older Runners Retain Youthful Running Economy Despite Biomechanical Differences. Medicine and Science in Sports and Exercise. PMID 26587844 DOI: 10.1249/Mss.0000000000000820  0.709
2015 Ortega JD, Farley CT. Effects of aging on mechanical efficiency and muscle activation during level and uphill walking. Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology. 25: 193-8. PMID 25263547 DOI: 10.1016/j.jelekin.2014.09.003  0.742
2014 Ortega JD, Beck ON, Roby JM, Turney AL, Kram R. Running for exercise mitigates age-related deterioration of walking economy. Plos One. 9: e113471. PMID 25411850 DOI: 10.1371/Journal.Pone.0113471  0.743
2014 Beck ON, Roby JM, Turney AL, Grabowski AM, Kram R, Ortega JD. Running Improves the Economy of Walking Among Older Adults. Medicine & Science in Sports & Exercise. 46: 557. DOI: 10.1249/01.Mss.0000495137.07036.5C  0.721
2011 Frey DJ, Ortega JD, Wiseman C, Farley CT, Wright KP. Influence of zolpidem and sleep inertia on balance and cognition during nighttime awakening: a randomized placebo-controlled trial. Journal of the American Geriatrics Society. 59: 73-81. PMID 21226678 DOI: 10.1111/j.1532-5415.2010.03229.x  0.65
2011 Ortega J, Farley C. Aging And The Determinants Of Metabolic Cost In Steady-state Uphill Walking Medicine & Science in Sports & Exercise. 43: 693. DOI: 10.1249/01.mss.0000401919.21036.27  0.678
2008 Ortega JD, Fehlman LA, Farley CT. Effects of aging and arm swing on the metabolic cost of stability in human walking. Journal of Biomechanics. 41: 3303-8. PMID 18814873 DOI: 10.1016/j.jbiomech.2008.06.039  0.735
2007 Ortega JD, Farley CT. Individual limb work does not explain the greater metabolic cost of walking in elderly adults. Journal of Applied Physiology (Bethesda, Md. : 1985). 102: 2266-73. PMID 17363623 DOI: 10.1152/japplphysiol.00583.2006  0.748
2007 Tracy BL, Mehoudar PD, Ortega JD. The amplitude of force variability is correlated in the knee extensor and elbow flexor muscles. Experimental Brain Research. 176: 448-64. PMID 16896977 DOI: 10.1007/s00221-006-0631-3  0.608
2005 Ortega JD, Farley CT. Minimizing center of mass vertical movement increases metabolic cost in walking. Journal of Applied Physiology (Bethesda, Md. : 1985). 99: 2099-107. PMID 16051716 DOI: 10.1152/japplphysiol.00103.2005  0.686
2002 Hunter SK, Ryan DL, Ortega JD, Enoka RM. Task differences with the same load torque alter the endurance time of submaximal fatiguing contractions in humans. Journal of Neurophysiology. 88: 3087-96. PMID 12466432 DOI: 10.1152/jn.00232.2002  0.622
2002 Tracy BL, Mehoudar PD, Ortega JD, Enoka RM. THE STEADINESS OF ISOMETRIC CONTRACTIONS IS SIMILAR BETWEEN UPPER AND LOWER EXTREMITY MUSCLE GROUPS Medicine & Science in Sports & Exercise. 34: S19. DOI: 10.1097/00005768-200205001-00103  0.638
2001 Hunter SK, Ryan DL, Ortega JD, Kutzscher DV, Enoka RM. THE PRESSOR RESPONSE VARIES WITH THE TYPE OF FATIGUING CONTRACTION PERFORMED BY MEN AND WOMEN Medicine & Science in Sports & Exercise. 33: S262. DOI: 10.1097/00005768-200105001-01477  0.578
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