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The Effects of a High Protein Breakfast on Appetite and Sleep in Young Adults

17 de mayo de 2017 actualizado por: Heather Leidy, Purdue University
The purpose of this study is to examine the effects of breakfast skipping (SKIP) vs. the consumption of a high protein solid (HP-S) breakfast vs. the consumption of a high protein beverage (HP-B) breakfast on daily appetite control, food cravings, food intake, and sleep quality in young adults.

Descripción general del estudio

Descripción detallada

Young adults will consume the following breakfasts (in randomized order) for 7 days/pattern: 350kcal HP breakfasts (30g protein) in solid or beverage form or will skip breakfast. During the breakfast treatment periods, the participants will be provided with isocaloric breakfast meals containing 34% protein (30g protein), 40% CHO, and 26% fat. The participants will consume these meals each day throughout each of the 7 day testing periods. During the breakfast skipping treatment period, the participants will skip breakfast every morning with nothing to eat or drink (besides water) until 12:00 pm. During the acclimation days (i.e., days 1-6), participants will eat their breakfasts at home or work or simply skip the morning meal. An actigraph (to assess key indices of sleep) will be continuously worn and sleep diaries will be completed for all 7 testing days. During the afternoon of Day 3, the participant will arrive at the University of Missouri-Physical Activity and Wellness Center (MU-PAW) and fitted with a Continuous Glucose Monitor (CGM) measure glycemic control over the next 3 days. On day 6, the participant will complete hourly appetite questionnaires, consume a standardized dinner meal, and complete a salivary sample prior to sleep onset (sleep related hormones). On the 7th day of each pattern, the participants will report to the MU-PAW in the morning to complete the respective testing day. The participants will begin the testing day by either skipping breakfast or consuming their respective breakfast meal. Blood samples, salivary samples, and assessments of perceived appetite will be collected/completed at specific times throughout the day. Prior to lunch, a brain scan will be completed using functional magnetic resonance imaging (fMRI) to identify bain activation patterns in response to food pictures. Following the fMRI, the participants will be provided with an a standardized lunch. The participants will then complete the remainder of the testing day. An ad libitum food buffet will be provided for the participants to consume after their departure at home throughout the remainder of the day. . They will continue to wear the actigraph and eat/drink from the ad libitum packout cooler until going to bed that evening. Lastly, participants will complete a salivary sample and sleep diary immediately before bed. Between days 8-10, the participants will return all testing day equipment and the packout cooler, including all empty wrappers and any uneaten foods. A 3-7 day washout period will occur between patterns in which the participant will return to their habitual (i.e. pre-study) breakfast behaviors. Study outcomes include morning, mid-day, afternoon, and evening appetite, satiety, pleasure, perceived energy/sleepiness, hormonal responses (plasma glucose, insulin, ghrelin, PYY, melatonin, and cortisol concentrations), sleep indices (i.e total sleep time, sleep efficiency, perceived sleep quality), brain activation patterns, evening energy intake, and daily energy intake.

Tipo de estudio

Intervencionista

Inscripción (Actual)

13

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Ubicaciones de estudio

    • Missouri
      • Columbia, Missouri, Estados Unidos, 65211
        • University of Missouri

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

20 años a 32 años (Adulto)

Acepta Voluntarios Saludables

Sí

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • age 20-32y
  • BMI 22-30kg/m2
  • non-smoker, non-user of tobacco products
  • generally healthy (as assessed by Medical History Questionnaire)
  • right-handed (fMRI requirement)
  • not pregnant or lactating in the past 6 months
  • not clinically diagnosed with and eating disorder
  • no metabolic, hormonal, and/or neural conditions/diseases/medications that influence metabolism or food intake
  • no known bleeding disorders
  • not currently or previously (In the past 6 months) on a weight loss or other special diet
  • no weight loss/gain (>10lbs) in the past 6 months
  • normal cognitive restraint, as assessed by a score of <4 on the Three Factors Eating Habits Questionnaire (TFEQ)
  • rating of ≥ 5 illustrating a minimum of "neither like nor dislike" on a 9-point hedonic scale rating for the study breakfasts
  • not clinically diagnosed with obstructive sleep apnea or insomnia and does not participate in shiftwork

Exclusion Criteria:

  • The potential participants will be excluded if they do not meet the inclusion criteria.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación cruzada
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: HP-Beverage Breakfast
For 7 days, the participants will consume high protein beverage breakfast meals each morning. These meals will consist of shakes and will be 350 kcal. The macronutrient composition of these meals will contain 30 g of dietary protein, 35g CHO, and 10g fat. The HP-S and HP-B meals will be matched for energy density, sugar content, macronutrient content and types of proteins.
Participants will consume high protein beverage (shake) breakfast meals each morning.
Experimental: HP-Solid Breakfast
For 7 days, the participants will consume high protein solid breakfast meals each morning. These meals will consist of traditional solid breakfast meals and will include commonly consumed breakfast foods (e.g., burritos, waffles, etc.) and will be 350 kcal. The macronutrient composition of these meals will contain 30 g of dietary protein, 35 g CHO, and 10 g fat. The HP-S and HP-B meals will be matched for energy density, sugar content, macronutrient content and types of proteins.
Participants will consume high protein solid (traditional food items) breakfast meals each morning.
Experimental: Breakfast Skipping
For 7 days, the participants will skip the morning meal. No food or calorie-containing beverages will be consumed before 12pm on acclimation days and no food consumed until ~5h post habitual breakfast time on testing day 7.
Participants will skip breakfast each morning.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Hunger
Periodo de tiempo: 4 weeks
Questionnaires, assessing appetite sensations of hunger will be completed throughout each of the testing days (which are separated by 7-10 days). The questionnaires contain validated visual analog scales (VAS) incorporating a 100 mm horizontal line rating scale for each response. The questions are worded in the following manner "how strong is your feeling of" with anchors of "not all" to "extremely."
4 weeks
Fullness
Periodo de tiempo: 4 weeks
Questionnaires, assessing appetite sensations of fullness will be completed throughout each of the testing days (which are separated by 7-10 days). The questionnaires contain validated visual analog scales (VAS) incorporating a 100 mm horizontal line rating scale for each response. The questions are worded in the following manner "how strong is your feeling of" with anchors of "not all" to "extremely."
4 weeks
Prospective Food Consumption
Periodo de tiempo: 4 weeks
Questionnaires, assessing appetite sensations of prospective food consumption will be completed throughout each of the testing days (which are separated by 7-10 days). The questionnaires contain validated visual analog scales (VAS) incorporating a 100 mm horizontal line rating scale for each response. The questions are worded in the following manner "how strong is your feeling of" with anchors of "not all" to "extremely."
4 weeks
Motivation to Eat
Periodo de tiempo: 4 weeks
Questionnaires, assessing appetite sensations of motivation to eat will be completed throughout each of the testing days (which are separated by 7-10 days). The questionnaires contain validated visual analog scales (VAS) incorporating a 100 mm horizontal line rating scale for each response. The questions are worded in the following manner "how strong is your feeling of" with anchors of "not all" to "extremely."
4 weeks
Hedonic Ratings (pleasure)
Periodo de tiempo: 4 weeks
Questionnaires, assessing appetite sensations of hedonic pleasure will be completed throughout each of the testing days (which are separated by 7-10 days). The questionnaires contain validated visual analog scales (VAS) incorporating a 100 mm horizontal line rating scale for each response. The questions are worded in the following manner "how strong is your feeling of" with anchors of "not all" to "extremely."
4 weeks

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Objective Sleep Status - Total Sleep Time
Periodo de tiempo: 4 weeks
Indices of sleep status and habits will be assessed throughout the acclimation and testing days in each of the 3 study arms. The participants will wear armband accelerometers / actigraphs to measure objective sleep parameters.
4 weeks
Objective Sleep Quality
Periodo de tiempo: 4 weeks
Indices of sleep status and habits will be assessed throughout the acclimation and testing days in each of the 3 study arms. The participants will wear armband accelerometers / actigraphs to measure objective sleep parameters.
4 weeks
Objective Sleep Efficiency
Periodo de tiempo: 4 weeks
Indices of sleep status and habits will be assessed throughout the acclimation and testing days in each of the 3 study arms. The participants will wear armband accelerometers / actigraphs to measure objective sleep parameters.
4 weeks
Objective Sleep and Circadian Patterns - Salivary Cortisol
Periodo de tiempo: 4 weeks
Indices of sleep status and habits salivary sampling will be completed on days 6 and 7 of each study arm to assess sleep related hormones (cortisol).
4 weeks
Objective Sleep and Circadian Patterns - Salivary Melatonin
Periodo de tiempo: 4 weeks
Indices of sleep status and habits salivary sampling will be completed on days 6 and 7 of each study arm to assess sleep related hormones (melatonin).
4 weeks
Subjective Sleep Quality - Mood
Periodo de tiempo: 4 weeks
Indices of perceived sleep quality (mood, energy, arousal, awakenings) will be assessed throughout the acclimation and testing days in each of the 3 study arms. The participants will complete bedtime and wake time sleep diaries to measure subjective sleep parameters.
4 weeks
Subjective Sleep Quality - Energy
Periodo de tiempo: 4 weeks
Indices of perceived sleep quality (mood, energy, arousal, awakenings) will be assessed throughout the acclimation and testing days in each of the 3 study arms. The participants will complete bedtime and wake time sleep diaries to measure subjective sleep parameters.
4 weeks
Subjective Sleep Quality - Arousal
Periodo de tiempo: 4 weeks
Indices of perceived sleep quality (mood, energy, arousal, awakenings) will be assessed throughout the acclimation and testing days in each of the 3 study arms. The participants will complete bedtime and wake time sleep diaries to measure subjective sleep parameters.
4 weeks
Subjective Sleep Quality - Awakenings
Periodo de tiempo: 4 weeks
Indices of perceived sleep quality (mood, energy, arousal, awakenings) will be assessed throughout the acclimation and testing days in each of the 3 study arms. The participants will complete bedtime and wake time sleep diaries to measure subjective sleep parameters.
4 weeks
Functional Magnetic Resonance Imaging (fMRI) Brain Activation Responses
Periodo de tiempo: 4 weeks
Brain activation responses will be assessed prior to lunch in each of the 3 testing days (separated by 2 weeks). During the fMRI brain scan procedure, the participants will focus on a set of photographs which will be projected onto a screen and easily viewed through a mirror. The fMRI paradigm incorporates stimuli from three categories of pictures including food, nonfood (animals), and blurred baseline images. Brain activation in the Insula, Amygdala, Hippocampus, and Parahippocampus will be examined when viewing food vs. animal pictures.
4 weeks
Evening / Dinner Energy Intake - Calories
Periodo de tiempo: 4 weeks
Energy intake during dinner and evening snacks of each testing day will be measured in calories consumed.
4 weeks
Evening / Dinner Energy Intake - Macronutrients or food categories
Periodo de tiempo: 4 weeks
Energy intake during dinner and evening snacks of each testing day will be measured as macronutrient or food category (i.e. amount of food consumed as protein, carbohydrates, fats, sugars, fiber).
4 weeks
Evening / Dinner Energy Intake - Food Choice
Periodo de tiempo: 4 weeks
Energy intake during dinner and evening snacks of each testing day will be measured as types of foods consumed (i.e. foods typically consumed as snacks, protein-rich foods, high carbohydrate/high fat convenience foods).
4 weeks
Appetite and Satiety Hormones (i.e., Ghrelin, PYY)
Periodo de tiempo: 4 weeks
10 total blood samples will be drawn throughout each of the testing days (which are separated by 7-10 days). Specifically, there will be seven 5 ml samples and three 9 ml samples; ~62 ml/testing day. The samples will be collected in test tubes containing EDTA (ethylenediaminetetraacetic acid). Protease inhibitors will be added to the sample to reduce protein degradation. Samples will be centrifuged at -4°C for 10 minutes. The plasma will then be separated and stored in microcentrifuge tubes at -80°C for future analysis. Appetite related hormones will be measured (ex. plasma total ghrelin and total PYY).
4 weeks

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Investigadores

  • Investigador principal: Heather J Leidy, PhD, Purdue University

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Publicaciones Generales

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio

1 de junio de 2016

Finalización primaria (Anticipado)

1 de diciembre de 2017

Finalización del estudio (Anticipado)

1 de mayo de 2018

Fechas de registro del estudio

Enviado por primera vez

17 de enero de 2017

Primero enviado que cumplió con los criterios de control de calidad

21 de enero de 2017

Publicado por primera vez (Estimar)

25 de enero de 2017

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

19 de mayo de 2017

Última actualización enviada que cumplió con los criterios de control de calidad

17 de mayo de 2017

Última verificación

1 de mayo de 2017

Más información

Términos relacionados con este estudio

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • 2005823 HS

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

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