Seth Creasy, PhD

Publications

• Creasy SA, Oselinsky KM, Willis EA, Caldwell AE, Rosenberg R, Ostendorf DM, Panter S, Wayland L, Bing K, Lorentzen J, Breit M, Clark K, Sandoval A, Donnelly JE, Melanson EL, Catenacci VA. Comparison of morning vs evening exercise on weight loss and related health behaviors in individuals with overweight or obesity: study protocol for a 56-week randomized controlled trial (TIMEX). Trials. 2025 Dec 12. [Epub ahead of print] PubMed PMID: 41388471
• Purcell SA, Melanson EL, Creasy SA, Barros M, Ramage S, Craven SA, Prado CM. Energy balance in cyclists on plant-based diets during a 30-day, 4300-km ride across Canada: Two case studies. Physiol Rep. 2025 Nov;13(21):e70629. PubMed PMID: 41178101
• Rosenberg R, Breit MJ, Clark KC, Broussard JL, Catenacci VA, Depner CM, Simon SL, Wright KP Jr, Zuraikat FM, Creasy SA. Examining the Role of Sleep in Body Weight Regulation and Implications for Obesity Treatment: A Narrative Review. Obes Rev. 2025 Sep 8;:e70017. [Epub ahead of print] PubMed PMID: 40922448
• Breit MJ, Pan Z, Ostendorf DM, Dahle JH, Catenacci VA, Creasy SA, Melanson EL. Using Time-Weighted Averages of Total Daily Energy Expenditure to Estimate Energy Intake During a Weight Loss Intervention. Obesity (Silver Spring). 2025 Nov;33(11):2093-2102. PubMed PMID: 40878019
• Breit MJ, Caldwell AE, Ostendorf DM, Pan Z, Creasy SA, Swanson B, Clark K, Hill EB, MacLean PS, Bessesen DH, Melanson EL, Catenacci VA. Effects of 4:3 Intermittent Fasting on Eating Behaviors and Appetite Hormones: A Secondary Analysis of a 12-Month Behavioral Weight Loss Intervention. Nutrients. 2025 Jul 21;17(14). PubMed PMID: 40733010
• Flack KD, Stults-Kolehmainen MA, Anderson RE 3rd, Handlery R, Creasy SA, Catenacci VA. Exploring Strategies to Promote Exercise as a Viable Obesity and Chronic Disease Treatment. Nutrients. 2025 Jun 13;17(12). PubMed PMID: 40573108
• Creasy SA, Ostendorf DM, Kaizer L, Rosenberg R, Breit MJ, Bessesen DH, Melanson EL, Catenacci VA. Effect of physical activity on changes in weight and aerobic capacity during an 18-month behavioral weight loss intervention. Int J Behav Nutr Phys Act. 2025 May 21;22(1):57. PubMed PMID: 40399945
• Dashti HS, Jansen EC, Zuraikat FM, Dixit S, Brown M, Laposky A, Broussard JL, Butler MP, Creasy SA, Crispim CA, Depner CM, Esser KA, Garaulet M, Hanlon EC, Makarem N, Manoogian ENC, Peterson CM, Scheer FAJL, Wright KP Jr, Goff DC Jr, Pratt CA, Gamble KL, St-Onge MP. Advancing Chrononutrition for Cardiometabolic Health: A 2023 National Heart, Lung, and Blood Institute Workshop Report. J Am Heart Assoc. 2025 May 6;14(9):e039373. PubMed PMID: 40265587
• Catenacci VA, Ostendorf DM, Pan Z, Kaizer LK, Creasy SA, Zaman A, Caldwell AE, Dahle J, Swanson B, Breit MJ, Bing K, Wayland LT, Panter SL, Scorsone JJ, Bessesen DH, MacLean P, Melanson EL. The Effect of 4:3 Intermittent Fasting on Weight Loss at 12 Months : A Randomized Clinical Trial. Ann Intern Med. 2025 May;178(5):634-644. PubMed PMID: 40163873
• Rubio-Valles M, Amaro-Gahete FJ, Creasy SA, Ramos-Jiménez A, Pérez-León JA, Chávez-Guevara IA. Circadian Regulation of Fatty Acid Metabolism in Humans: Is There Evidence of an Optimal Time Window for Maximizing Fat Oxidation During Exercise?. Sports Med. 2025 Jan;55(1):49-65. PubMed PMID: 39681771
• Creasy SA, Rosenberg RC, Ostendorf DM, Browning R, Melanson EL, Pan Z, Catenacci VA. Walking economy and exercise efficiency in successful weight loss maintainers. Physiol Behav. 2025 Jan 1;288:114730. PubMed PMID: 39505080
• Rubio-Valles M, Amaro-Gahete FJ, Creasy SA, Ramos-Jiménez A, Pérez-León JA, Chávez-Guevara IA. Circadian Regulation of Fatty Acid Metabolism in Humans: Is There Evidence of an Optimal Time Window for Maximizing Fat Oxidation During Exercise?. Sports Med. 2025 Jan;55(1):49-65. PubMed PMID: 39681771
• Creasy SA, Rosenberg RC, Ostendorf DM, Browning R, Melanson EL, Pan Z, Catenacci VA. Walking economy and exercise efficiency in successful weight loss maintainers. Physiol Behav. 2025 Jan 1;288:114730. PubMed PMID: 39505080
• Breit MJ, Duncan NM, Dahle JH, Catenacci VA, Creasy SA, Berman ES, Speakman JR, Melanson EL. Improving quality control procedures for the measurement of total daily energy expenditure using the two-point doubly labeled water method. Rapid Commun Mass Spectrom. 2024 Oct 15;38(19):e9886. PubMed PMID: 39114941
• Jackson RE, Lang W, Rogers RJ, Schelbert EB, Kovacs SJ, Creasy SA, Jakicic JM. Accumulated physical activity and the association with obesity, fitness, and cardiometabolic risk factors in healthy adults. Obesity (Silver Spring). 2024 Jan;32(1):23-31. PubMed PMID: 37789600
• Jackson RE, Lang W, Rogers RJ, Schelbert EB, Kovacs SJ, Creasy SA, Jakicic JM. Accumulated physical activity and the association with obesity, fitness, and cardiometabolic risk factors in healthy adults. Obesity (Silver Spring). 2024 Jan;32(1):23-31. PubMed PMID: 37789600
• Flack KD, Stults-Kolehmainen MA, Creasy SA, Khullar S, Boullosa D, Catenacci VA, King N. Altered motivation states for physical activity and 'appetite' for movement as compensatory mechanisms limiting the efficacy of exercise training for weight loss. Front Psychol. 2023;14:1098394. PubMed PMID: 37187558
• Kowalsky RJ, Farney TM, Kline CE, Hinojosa JN, Creasy SA. The impact of the covid-19 pandemic on lifestyle behaviors in U.S. college students. J Am Coll Health. 2023 May-Jun;71(4):1161-1166. PubMed PMID: 34161199
• Street JH, Boos ZP, Fial A, Lennon SL, Smith CS, Creasy SA, Hunter SK, Farquhar WB, Capin JJ. Long-term function, body composition and cardiometabolic health in midlife former athletes: a scoping review. BMJ Open Sport Exerc Med. 2023;9(4):e001605. PubMed PMID: 37920279
• Purcell SA, Legget KT, Halliday TM, Pan Z, Creasy SA, Blankenship JM, Hild A, Tregellas JR, Melanson EL, Cornier MA. Appetitive and Metabolic Responses to an Exercise versus Dietary Intervention in Adults with Obesity. Transl J Am Coll Sports Med. 2022 Fall;7(4). PubMed PMID: 36337848
• Grau L, Arbet J, Ostendorf DM, Blankenship JM, Panter SL, Catenacci VA, Melanson EL, Creasy SA. Creating an algorithm to identify indices of sleep quantity and quality from a wearable armband in adults. Sleep Sci. 2022 Jul-Sep;15(3):279-287. PubMed PMID: 36158722
• Ostendorf DM, Caldwell AE, Zaman A, Pan Z, Bing K, Wayland LT, Creasy SA, Bessesen DH, MacLean P, Melanson EL, Catenacci VA. Comparison of weight loss induced by daily caloric restriction versus intermittent fasting (DRIFT) in individuals with obesity: study protocol for a 52-week randomized clinical trial. Trials. 2022 Aug 29;23(1):718. PubMed PMID: 36038881
• Creasy SA, Ostendorf DM, Blankenship JM, Grau L, Arbet J, Bessesen DH, Melanson EL, Catenacci VA. Effect of sleep on weight loss and adherence to diet and physical activity recommendations during an 18-month behavioral weight loss intervention. Int J Obes (Lond). 2022 Aug;46(8):1510-1517. PubMed PMID: 35577898
• Creasy SA, Wayland L, Panter SL, Purcell SA, Rosenberg R, Willis EA, Shiferaw B, Grau L, Breit MJ, Bessesen DH, Melanson EL, Catenacci VA. Effect of Morning and Evening Exercise on Energy Balance: A Pilot Study. Nutrients. 2022 Feb 15;14(4). PubMed PMID: 35215466
• Willis EA, Creasy SA, Saint-Maurice PF, Keadle SK, Pontzer H, Schoeller D, Troiano RP, Matthews CE. Physical Activity and Total Daily Energy Expenditure in Older US Adults: Constrained versus Additive Models. Med Sci Sports Exerc. 2022 Jan 1;54(1):98-105. PubMed PMID: 34334719
• Willis EA, Creasy SA, Saint-Maurice PF, Keadle SK, Pontzer H, Schoeller D, Troiano RP, Matthews CE. Physical Activity and Total Daily Energy Expenditure in Older US Adults: Constrained versus Additive Models. Med Sci Sports Exerc. 2022 Jan 1;54(1):98-105. PubMed PMID: 34334719
• Kowalsky RJ, Farney TM, Kline CE, Hinojosa JN, Creasy SA. The impact of the covid-19 pandemic on lifestyle behaviors in U.S. college students. J Am Coll Health. 2021 Jun 23;:1-6. [Epub ahead of print] PubMed PMID: 34161199
• Creasy SA, Hibbing PR, Cotton E, Lyden K, Ostendorf DM, Willis EA, Pan Z, Melanson EL, Catenacci VA. Temporal patterns of physical activity in successful weight loss maintainers. Int J Obes (Lond). 2021 Sep;45(9):2074-2082. PubMed PMID: 34127805
• Blankenship JM, Rosenberg RC, Rynders CA, Melanson EL, Catenacci VA, Creasy SA. Examining the Role of Exercise Timing in Weight Management: A Review. Int J Sports Med. 2021 Oct;42(11):967-978. PubMed PMID: 34034354
• Speakman JR, Yamada Y, Sagayama H, Berman ESF, Ainslie PN, Andersen LF, Anderson LJ, Arab L, Baddou I, Bedu-Addo K, Blaak EE, Blanc S, Bonomi AG, Bouten CVC, Bovet P, Buchowski MS, Butte NF, Camps SGJA, Close GL, Cooper JA, Creasy SA, Das SK, Cooper R, Dugas LR, Ebbeling CB, Ekelund U, Entringer S, Forrester T, Fudge BW, Goris AH, Gurven M, Hambly C, El Hamdouchi A, Hoos MB, Hu S, Joonas N, Joosen AM, Katzmarzyk P, Kempen KP, Kimura M, Kraus WE, Kushner RF, Lambert EV, Leonard WR, Lessan N, Ludwig DS, Martin CK, Medin AC, Meijer EP, Morehen JC, Morton JP, Neuhouser ML, Nicklas TA, Ojiambo RM, Pietiläinen KH, Pitsiladis YP, Plange-Rhule J, Plasqui G, Prentice RL, Rabinovich RA, Racette SB, Raichlen DA, Ravussin E, Reynolds RM, Roberts SB, Schuit AJ, Sjödin AM, Stice E, Urlacher SS, Valenti G, Van Etten LM, Van Mil EA, Wells JCK, Wilson G, Wood BM, Yanovski J, Yoshida T, Zhang X, Murphy-Alford AJ, Loechl CU, Melanson EL, Luke AH, Pontzer H, Rood J, Schoeller DA, Westerterp KR, Wong WW. A standard calculation methodology for human doubly labeled water studies. Cell Rep Med. 2021 Feb 16;2(2):100203. PubMed PMID: 33665639
• Ostendorf DM, Blankenship JM, Grau L, Arbet J, Mitchell NS, Creasy SA, Caldwell AE, Melanson EL, Phelan S, Bessesen DH, Catenacci VA. Predictors of long-term weight loss trajectories during a behavioral weight loss intervention: An exploratory analysis. Obes Sci Pract. 2021 Oct;7(5):569-582. PubMed PMID: 34631135
• Willis EA, Creasy SA, Honas JJ, Melanson EL, Donnelly JE. The effects of exercise session timing on weight loss and components of energy balance: midwest exercise trial 2. Int J Obes (Lond). 2020 Jan;44(1):114-124. PubMed PMID: 31289334
• Berman ESF, Swibas T, Kohrt WM, Catenacci VA, Creasy SA, Melanson EL, Speakman JR. Maximizing precision and accuracy of the doubly labeled water method via optimal sampling protocol, calculation choices, and incorporation of (17)O measurements. Eur J Clin Nutr. 2019 Aug 19. [Epub ahead of print] PubMed PMID: 31427762
• Creasy SA, Crane TE, Garcia DO, Thomson CA, Kohler LN, Wertheim BC, Baker LD, Coday M, Hale L, Womack CR, Wright KP, Melanson EL. Higher amounts of sedentary time are associated with short sleep duration and poor sleep quality in postmenopausal women. Sleep. 2019 Jul 8;42(7). PubMed PMID: 30994175
• Ostendorf DM, Caldwell AE, Creasy SA, Pan Z, Lyden K, Bergouignan A, MacLean PS, Wyatt HR, Hill JO, Melanson EL, Catenacci VA. Physical Activity Energy Expenditure and Total Daily Energy Expenditure in Successful Weight Loss Maintainers. Obesity (Silver Spring). 2019 Mar;27(3):496-504. PubMed PMID: 30801984
• Catenacci VA, Ostendorf DM, Pan Z, Bing K, Wayland LT, Seyoum E, Stauffer BL, Phelan S, Creasy SA, Caldwell AE, Wyatt HR, Bessesen DH, Melanson EL. The Impact of Timing of Exercise Initiation on Weight Loss: An 18-Month Randomized Clinical Trial. Obesity (Silver Spring). 2019 Nov;27(11):1828-1838. PubMed PMID: 31565869

Professional Memberships

• The American College of Sports Medicine, Member
• The Obesity Society, Member

Practice Locations

CU Medicine Weight Management - CU Anschutz Health and Wellness Center
12348 E Montview Boulevard
Aurora, CO 80045
303-724-9030