Clinical Trials Logo

Clinical Trial Summary

The purpose of this study is to determine if an increased protein intake can attenuate the suppression of metabolic and anabolic hormones during caloric restriction


Clinical Trial Description

1. Preliminary testing

Prior to the study start, participants will be weighed and body composition will be determined using calipermetry (7 sites) and bioelectrical impedance. Peak oxygen uptake (VO2peak) will be assessed using an incremental exercise test on a bicycle ergometer.

2. Randomization

Participants will proceed through each of the following conditions lasting 5 days:

CR-LP: Participants will be restricted to 30 kcal/kg FFM/day and protein intake will be low (0.8 g/kg BW/day).

CR-HP: Participants will be restricted to 30 kcal/kg FFM/day and protein intake will be high (1.7 g/kg BW/day).

CON: Participants will be in energy balance and consume 1.7 g protein/kg BW/day.

3. Diet Prescription

Dietary energy intake will be controlled using clinical products and maltodextrin to meet target energy intakes. Participants will received calcium and Vitamin D supplementation throughout the study.

4. Exercise Prescription

During all conditions, participants will conduct daily supervised exercise on a bicycle ergometer at an exercise intensity of 60% VO2peak. Exercise duration will be adjusted individually such that exercise energy expenditure will amount to 15 kcal/kg FFM/day. Additional exercise and intense physical activity will be prohibited.

5. Assessments

The following assessments will be conducted prior to the start of each condition as well as upon completion of each condition: body weight and composition (impedance), fasting blood draw for assessment of metabolic and anabolic hormones, resting metabolic rate, aerobic fitness (VO2peak), and questionnaires.

6. Washout

Once a participant has completed a study condition, participant will be allowed a washout of at least 14 days to allow protein balance to return to baseline (Hoffer & Forse, 1990). During this time, participants will resume their regular diet and physical activity. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02945410
Study type Interventional
Source University of Nebraska Lincoln
Contact
Status Completed
Phase N/A
Start date September 2016
Completion date February 2019

See also
  Status Clinical Trial Phase
Completed NCT04506996 - Monday-Focused Tailored Rapid Interactive Mobile Messaging for Weight Management 2 N/A
Active, not recruiting NCT04420936 - Pragmatic Research in Healthcare Settings to Improve Diabetes and Obesity Prevention and Care for Our Program N/A
Terminated NCT03316105 - Effect of T6 Dermatome Electrical Stimulation on Gastroduodenal Motility in Healthy Volunteers N/A
Completed NCT03700736 - The Healthy Moms Study: Comparison of a Post-Partum Weight Loss Intervention Delivered Via Facebook or In-Person Groups N/A
Active, not recruiting NCT04353726 - Knowledge-based Dietary Weight Management. N/A
Completed NCT02948283 - Metformin Hydrochloride and Ritonavir in Treating Patients With Relapsed or Refractory Multiple Myeloma or Chronic Lymphocytic Leukemia Phase 1
Completed NCT03377244 - Healthy Body Healthy Souls in the Marshallese Population N/A
Completed NCT02877004 - LLLT for Reducing Waste Circumference and Weight N/A
Active, not recruiting NCT04327141 - Low Sugar Protein Pacing, Intermittent Fasting Diet in Men and Women N/A
Completed NCT03929198 - Translation of Pritikin Program to the Community N/A
Recruiting NCT05249465 - Spark: Finding the Optimal Tracking Strategy for Weight Loss in a Digital Health Intervention N/A
Recruiting NCT05942326 - Sleep Goal-focused Online Access to Lifestyle Support N/A
Completed NCT00535600 - Effects of Bariatric Surgery on Insulin
Not yet recruiting NCT03601273 - Bariatric Embolization Trial for the Obese Nonsurgical Phase 1
Active, not recruiting NCT04357119 - Common Limb Length in One-anastomosis Gastric Bypass N/A
Completed NCT03210207 - Gastric Plication in Mexican Patients N/A
Completed NCT02948517 - Time Restricted Feeding for Weight Loss and Cardio-protection N/A
Completed NCT03139760 - POWERSforID: A Telehealth Weight Management System for Adults With Intellectual Disability N/A
Recruiting NCT02559479 - A Study to Assess the Effect of a Normal vs. High Protein Diets in Carbohydrates Metabolism in Obese Subjects With Diabetes or Prediabetes N/A
Completed NCT02627105 - The Beef WISE Study: Beef's Role in Weight Improvement, Satisfaction, and Energy N/A