Floris Wardenaar

In print

38. Naldo R, Boeckman J, Vanos J, Kavouras S, Wardenaar FC. Short hydration education video and hiker fluid selection and consumption at trails, a non-randomized quasi-experimental field study. Nutrition and Health, First published online January 11, 2023.

37. Wardenaar FC, Beaumont JS, Boeckman Josh, van Geffen B, Vanos JK. Analysis of potential hydration opportunities during future football tournaments based on data from the 2018 FIFA World Cup. Science and Medicine in Football. 1-5. 2022.

36. Hamilton K.P, Ziegler J, Samavat H, Wardenaar F, Esopenko C, Womack J, Krystofiak J, Byham-Gray L. Athletic Characteristics Predicting Nutritional Supplement Use in a Sample of NCAA Division I and Division III Student-Athletes. Journal of Dietary Supplements. 1-15. 2022.

35. Vento KA, Koskan A, Lynch H, Kavouras S, Johnston C, Wardenaar, FC. Effect of increased water intake on uropathogenic bacterial activity of underhydrated menstruating young adult women: A randomized crossover trial. Nutrition and Health. Oct 12; doi: 10.1177/02601060221129159. Online ahead of print. 2022.

34. Wardenaar FC. Hoogervorst D. How Sports Health Professionals Perceive and Prescribe Nutritional Supplements to Olympic and Non-Olympic Athletes. International Journal of Environmental Research and Public Health. 19 (19), 12477. 2022.

33. Wardenaar FC, Seltzer RGN, Kavouras SA. Accuracy and reliability of college athletes’ scoring of artificial urine color samples to determine hydration status. International Journal of Sports Science & Coaching. doi: 10.1177/17479541221114748 First published online July 21, 2022.

32. Thompsett DJ, Vento KA, Der Ananian C. Hondula D, Wardenaar FC. The effects of three different types of macronutrient feedings on golf performance and levels of fatigue and alertness. Nutrition and Health. Volume 28, Issue 4. 2022. https://doi.org/10.1177/02601060221110367

31. Skinner J, Vento KA, Johnston CS. Wardenaar FC. Using Nutrition Knowledge and Diet Quality Questionnaires as Screening Tools to Identify Female Collegiate Athletes in Need of Dietitian Referral. Canadian Journal of Dietetic Practice and Research. Sep 1;83(3):133-138. doi: 10.3148/cjdpr-2022-004. Epub 2022 May 3.

30. Wardenaar FC, Vento KA, Ortega-Santos CP, Connolly J, Vanos JK. The impact of different playing surfaces on physiological parameters in collegiate DI American football athletes. International Journal of Sports Science & Coaching. 2022. doi: 10.1177/17479541221089748

29. Wardenaar FC. Human Hydration Indices: Spot Urine Sample Reference Values for Urine Concentration Markers in Athletic Populations. Dietetics. 1 1 39-51. 2022.

28. Wardenaar F, Armistead S, Boeckman K, Butterick B, Youssefi D, Thompsett D, Vento KA. The validity urine color scoring at different light conditions to assess low versus high urine concentration. Journal of Athletic Training. Online first. doi: 10.4085/1062-6050-0389.21 First published online April 7, 2022.

27. van Venrooij NFJ, Wardenaar FC, Hoogervorst D, Senden JMG, van Dijk JW, Jonvik KL. The association between gastrointestinal injury, complaints, and food intake in 60-km ultramarathon runners. Applied Physiology, Nutrition, and Metabolism. 47;5, 547-554. 2022.

26. Mohr AE, Pugh J, O'Sullivan O, Black K, Townsend JR, Pyne DB, Wardenaar FC, West NP, Whisner CM, McFarland LV. Best Practices for Probiotic Research in Athletic and Physically Active Populations: Guidance for Future Randomized Controlled Trials. Frontiers in Nutrition. 9. 2022.

25. Guyer H, Georgescu M, Hondula DM, Wardenaar F, Vanos J. Identifying the need for locally-observed wet bulb globe temperature across outdoor athletic venues for current and future climates in a desert environment. Environmental Research Letters. 2021. 16: 124042. doi: 10.1088/1748-9326/ac32fb

24. Wardenaar FC, Hoogervorst D, Vento KA, de Hon O. Dutch Olympic and non-Olympic athletes differ in knowledge of and attitudes toward third-party supplement testing. Journal of Dietary Supplements. 18 6 646-654. 2021.

23. Wardenaar FC, Thompsett D, Vento KA, Bacalzo D. A Lavatory Urine Color (LUC) Chart Method can Identify Hypohydration in a Physically Active Population. European Journal of Nutrition. 60 (5), 2795-2805. 2021. doi: 10.1007/200394-02460-5

22. Vento KA, Delgado F, Skinner J, Wardenaar FC. Funding and college-provided nutritional resources on diet quality among female athletes. Journal of American College Health. 2021. Aug 11. doi: 10.1080/07448481.2021.1947301

21. Wardenaar FC, Ortega-Santos CP, Vento KA, Beaumont JS, Griffin SC, Johnston C, Kavouras SA. A 5-day heat acclimation program improves heat stress indicators while maintaining exercise capacity. Journal of Strength and Conditioning Research. 2021 May 1;35(5):1279-1286. doi: 10.1519/JSC.0000000000003970

20. Wardenaar FC. Thompsett D, Vento KA, Pesek K, Bacalzo D. Athletes' Self-Assessment of Urine Color Using Two Color Charts to Determine Urine Concentration. International Journal of Environmental Research and Public Health. 2021. Apr 13;18(8):4126. doi: 10.3390/ijerph18084126

19. Wardenaar FC, Ortega-Santos CP, Vento KA, Olzinski S, Olig J, Kavouras S, Johnston C. Reliability of three urine specific gravity meters measuring brix and urine solutions at different temperatures. Journal of Athletic Training. 2021. Mar 31;56(4):389-95. doi: 10.4085/1062-6050-0142.20. Online ahead of print.

18. Vento KA, Wardenaar FC. Third-Party Testing Nutritional Supplement Knowledge, Attitudes, and Use Among an NCAA I Collegiate Student-Athlete Population. Front Sports Act Living. 2020 Sep 15;2:115. doi: 10.3389/fspor.2020.00115. eCollection 2020.

17. Linsell JD, Pelham EC, Hondula DM, Wardenaar FC. Hiking Time Trial Performance in the Heat with Real-Time Observation of Heat Strain, Hydration Status and Fluid Intake Behavior. International Journal of Environmental Research and Public Health. 2020 Jun; 17(11): 4086. doi: 10.3390/ijerph17114086

16. Wardenaar FC, Hoogervorst D, Nancy van der Burg, Versteegen J, Yoo W, Tasevska N. Validity of Food and Fluid Exercise Questionnaire for Macronutrient Intake during Exercise against Observations. Nutrients 2019, 11, 2391; doi: 10.3390/nu11102391.

15. Olzinski S, Beaumont J, Toledo M, Yudell A, Johnston CS, Wardenaar FC. Hydration Status and Fluid Needs of Division I Female Collegiate Athletes Exercising Indoors and Outdoors. Sports. 2019; 7, 155; doi:10.3390/sports7070155.

14. Hoogervorst D, Van der Burg D, Versteegen JJ, Lambrechtse KJ, Redegeld MI, Cornelissen LAJ, Wardenaar FC. Gastrointestinal Complaints and Correlations with Self-Reported Macronutrient Intake in Independent Groups of (Ultra)Marathon Runners Competing at Different Distances. Sports. 2019, 7, 140. doi: 10.3390/sports7060140.

13. Jonvik KL, Paulussen KJM, Danen SL, Ceelen IJM, Horstman AM, Wardenaar FC, Van Loon LJC, Van Dijk JW. Protein Supplementation Does Not Augment Adaptation to Endurance Exercise Training. MSSE, published ahead of print at 22 April 2019.

12. Wardenaar FC, Hoogervorst D, Versteegen JJ, Van der Burg N, Lambrechtse KJ, Bongers CCWG. Real-time observations of food and fluid timing during a 120 km ultramarathon. Front Nutr. 2018; 5: 32. Published online 2018 May 4. doi:  10.3389/fnut.2018.00032.

11. Jonvik K, Nyakayiru J, Van Dijk JW, Wardenaar F, Van Loon L, Verdijk L. Habitual dietary nitrate intake in highly trained athletes. Int J Sport Nutr Exerc Metab. 2016 Oct 21:1-25.

10. Gillen JB, Trommelen J, Wardenaar FC, Brinkmans NY, Versteegen JJ, Jonvik KL, Kapp C, de Vries J, van den Borne JJ, Gibala MJ, van Loon LJ. Dietary Protein Intake and Distribution Patterns of Well-Trained Dutch Athletes. Int J Sport Nutr Exerc Metab. 2016 Oct 6:1-23.

9. Wardenaar F, Brinkmans N, Ceelen I, et al. Micronutrient Intakes in 553 Dutch Elite and Sub-Elite Athletes: Prevalence of Low and High Intakes in Users and Non-Users of Nutritional Supplements. Nutrients. 2017; 9.

8. Wardenaar F, Brinkmans N, Ceelen I, et al. Macronutrient Intakes in 553 Dutch Elite and Sub-Elite Endurance, Team, and Strength Athletes: Does Intake Differ between Sport Disciplines? Nutrients. 2017; 9: 15.

7. Wardenaar FC, Ceelen IJ, Van Dijk JW, Hangelbroek RW, Van Roy L, Van der Pouw B, De Vries JH, Mensink M, Witkamp RF. Nutritional supplement use by Dutch elite and sub-elite athletes: Does receiving dietary counselling make a difference? Int J Sport Nutr Exerc Metab. 27 (1), 32-42. 2017.

6. Wardenaar F, van den Dool R, Ceelen I, Witkamp R, Mensink M. Self-Reported Use and Reasons among the General Population for Using Sports Nutrition Products and Dietary Supplements. Sports 2016, 4(2).

5. Bettonviel AEO, Brinkmans NYJ, Russcher K, Wardenaar FC, Witard FC. Nutritional status and daytime pattern of protein intake on match, post-match, rest and training days in senior professional and youth elite soccer players. J Sport Nutr Exerc Metab. 2016 Jun 26 (3), 285-293.

4. Wijnen A, Steennis J, Catoire M, Wardenaar F, Mensink M. Post-Exercise Rehydration: Effect of Consumption of Beer with Varying Alcohol Content on Fluid Balance after Mild Dehydration. Frontiers in nutrition. 2016 Oct 17;3-45.

3. Wardenaar FC, Steennis J, Ceelen I, Mensink M, Witkamp R, de Vries J. Validation of multiple, web-based, 24-hour recalls against nitrogen excretions to determine protein intake in Dutch elite athletes. Br J Nutr. 2015 Dec 28;114(12):2083-92.

2. Wardenaar FC, Dijkhuizen R, Ceelen I, Jonk E, de Vries JH, Witkamp RF, Mensink M. Nutrient intake of ultramarathon runners: can they meet recommendations? Int J Sport Nutr Exerc Metab. 2015 Aug;25(4):375-86.

1. Wardenaar F, Ceelen I, van den Dool R, Witkamp R, Mensink M. Use of dietary supplements by the Dutch general active population (in Dutch) Ned. Tijdschrift voor Diëtetiek. 2014.

Books, guidelines, and opinion articles for the profession

5. Wardenaar FC, Maas T, Hoogervorst D. Performance nutrition guidelines (in Dutch: Richtlijn Wedstrijdsport voor diëtisten en sportvoedingskundigen), 2010 uitgevers, Rotterdam. 3rd edition. 2022.

4. Wardenaar FC, Tjieu Maas. Sports nutrition guidelines: from Northern America to the Netherlands. Nederlands Tijdschrift voor Voeding & Dietetiek - 2017;72(5).

3. Wardenaar FC, Whisner C. Does receiving dietary counseling make a difference in the use of dietary supplements and sport nutrition products? SCAN Pulse. December 2017.

2. Wardenaar FC. Evaluation of dietary intake and nutritional supplement use of elite and sub-elite Dutch athletes. Dutch Sport nutrition and Supplement Study. Wageningen: Department of Human Nutrition, Wageningen University, 2017; 190. http://edepot.wur.nl/399863

1. Wardenaar FC, Van der Wilt H, Engelen C. Interdisciplinary cooperation in performance nutrition (in Dutch). Practical hand book for sports professionals (2017).

PATENT APPLICATIONS

December 15, 2022 US Patent App. 17/806,697. 2022. Urine Color System and Method for Use of the Same. Wardenaar FC and Bacalzo D.