Rev Med UAS
Vol. 11: No. 4. Octubre-Diciembre 2021
ISSN 2007-8013

Inappropriate nutrition leads to an energy deficit in medical students during 24-hour shifts.

El gasto calórico conduce a un déficit energético en estudiantes de medicina en un turno de 24 horas.

Eduardo Flores-Villalba1,2,*, Jose I Ortiz De Elguea-Lizarraga2, Victor Segura-Ibarra1,2, Elvia M Dominguez-Barragan2, Ana S Guerra-Cantu2, Jose A Diaz-Elizondo2, Marisa G. Frausto-Alejos2, Dixia Ramirez1

  1. TEC de Monterrey, School of Engineering and Science, Department of Advance Manufacturing, Monte-rrey, México
  2. TEC de Monterrey, School of Medicine and Health Sciences, Department of Clinical Research, Monterrey, México

*Autor de correspondencia:Eduardo Flores-Villalba, MD, MSc
TEC de Monterrey, School of Medicine and Health Sciences
Ignacio Morones Prieto 3000 Pte. Col. Doctores Monterrey, NL., México, CP 64710
Phone: 52 (81) 88 88 03 10


Texto Completo PDF

Recibido 01 de julio 2021, aceptado 28 de julio 2021

Introduction: Surgical rotations of medical students are physically, emotionally, and intellectually demanding. Energy expenditure throughout a shift, lack of sleep and inadequate nutrition affect student’s performance. --- Objective: The aim of this study is to describe and analyze caloric intake and energy expenditure during a 24-hour shift in medical students during a clinical surgical rotation. --- Materials and Methods: Twenty-three medical students wore a smart armband during a 24-hour shift to register energy expenditure physical activity, along reports of meals and food intake. --- Results: Median energetic expenditure was of 3666 kcal/day while intake was of 1384 kcal/day, averaging a deficit of 2374 kcal. Students slept a median of 0 minutes and walked 9252 steps. Discussion and Conclusion: These parameters should be considered when designing clinical rotations to provide quality service to patients and ensure the well-being of students.
Key words: Caloric expenditure, medical students, Shifts, Clinical Internship

Introducción: Las rotaciones clínicas de cirugía de los estudiantes de medicina son exigentes física, emocional e intelectualmente. El extraordinario gasto de energía que se tiene durante un turno quirúrgico, la falta de sueño y una nutrición inadecuada, afecta a los estudiantes de manera profesional y en su vida personal. --- Objetivo: Describir y analizar la ingesta calórica y el gasto energético durante un turno de 24 horas en estudiantes de medicina durante una rotación clínica de cirugía. --- Materiales y métodos: Veintitrés estudiantes de medicina usaron un brazalete inteligente durante un turno de 24 horas con el fin de obtener el gasto de energía, horas de sueño y actividad. Los estudiantes también reportaron cada comida e ingesta de alimentos durante su turno. --- Resultados: La mediana del gasto energético fue de3666 kcal/día y la mediana de ingesta fue de 1384 kcal/día, lo que llevó a un déficit calórico de 2374 kcal. Los estudiantes durmieron una mediana de 0 minutos y caminaron 9252 pasos. Discusión y conclusión:

Estos parámetros deben ser considerados al diseñar rotaciones clínicas para brindar un servicio de calidad a los pacientes y asegurar el bienestar de los estudiantes.
Palabras clave: Gasto calórico, estudiantes de medicina, turno, pasantías clínicas.


  1. Truswell AS, Darnton-Hill I. Food habits of adolescents. Nutr Rev. 1981;39(2):73-88.
  2. Winston J, Johnson C, Wilson S. Barriers to healthy eating by National Health Service (NHS) hospital doctors in the hospital setting: results of a cross-sectional survey. BMC Res Notes. 2008;1:69.
  3. Dahlin ME, Runeson B. Burnout and psychiatric morbidity among medical students entering clinical training: a three year prospective questionnaire and interview-based study. BMC Med Educ. 2007;7:6.
  4. Dyrbye LN, Massie FS, Eacker A, Harper W, Power D, Durning SJ, et al. Relationship between burnout and professional conduct and attitudes among US medical students. JAMA. 2010;304(11):1173-80.
  5. Acheson KJ. Carbohydrate for weight and metabolic control: where do we stand? Nutrition. 2010;26(2):141-5.
  6. Bowman SA, Vinyard BT. Fast food consumption of U.S. adults: impact on energy and nutrient intakes and overweight status. J Am Coll Nutr. 2004;23(2):163-8.
  7. Spiegel K, Tasali E, Penev P, Van Cauter E. Brief communication: Sleep curtailment in healthy young men is associated with decreased leptin levels, elevated ghrelin levels, and increased hunger and appetite. Ann Intern Med. 2004;141(11):846-50.
  8. Bidlack WR. Interrelationships of food, nutrition, diet and health: the National Association of State Universities and Land Grant Colleges White Paper. J Am Coll Nutr. 1996;15(5):422-33.
  9. Guo X, Warden BA, Paeratakul S, Bray GA. Healthy Eating Index and obesity. Eur J Clin Nutr. 2004;58(12):1580-6.
  10. Kant AK, Schatzkin A, Ziegler RG. Dietary diversity and subsequent cause-specific mortality in the NHANES I epidemiologic follow-up study. J Am Coll Nutr. 1995;14(3):233-8.
  11. Cluskey M, Grobe D. College weight gain and behavior transitions: male and female differences. J Am Diet Assoc. 2009;109(2):325-9.
  12. Thomas DM, Gonzalez MC, Pereira AZ, Redman LM, Heymsfield SB. Time to correctly predict the amount of weight loss with dieting. J Acad Nutr Diet. 2014;114(6):857-61.
  13. Maggini S, Pierre A, Calder PC. Immune Function and Micronutrient Requirements Change over the Life Course. Nutrients. 2018;10(10).
  14. Fitzpatrick LA. Secondary causes of osteoporosis. Mayo Clin Proc. 2002;77(5):453-68.
  15. Browne BJ, Van Susteren T, Onsager DR, Simpson D, Salaymeh B, Condon RE. Influence of sleep deprivation on learning among surgical house staff and medical students. Surgery. 1994;115(5):604-10.
  16. Lieffers JR, Hanning RM. Dietary assessment and self-monitoring with nutrition applications for mobile devices. Can J Diet Pract Res. 2012;73(3):e253-60.