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Effects of High Protein Intake With Intense Exercise and Energy Deficit (RIPPED)

Primary Purpose

Overweight

Status
Completed
Phase
Not Applicable
Locations
Canada
Study Type
Interventional
Intervention
High Protein
Low Protein
Sponsored by
McMaster University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional basic science trial for Overweight focused on measuring Muscle, Protein, Diet, Exercise

Eligibility Criteria

18 Years - 30 Years (Adult)MaleAccepts Healthy Volunteers

Inclusion Criteria:

  • 18-30 males
  • Healthy

Exclusion Criteria:

  • more than 15% body fat
  • 35-50ml/kg/min VO2
  • BMI grater than 27

Sites / Locations

  • McMaster University

Arms of the Study

Arm 1

Arm 2

Arm Type

Active Comparator

Placebo Comparator

Arm Label

High Protein

Low Protein

Arm Description

High Protein

Low Protein

Outcomes

Primary Outcome Measures

Body Composition
To compare the effect of normal protein intake (1.2 g/kg per day) and increased protein intake (2.4 g/kg per day) on body composition over a 4 week period of energy restriction in young males (18-30), with intense exercise training. Body composition will be measured via DXA, Bod Pod, Bio-impedance, skin folds.

Secondary Outcome Measures

Psychological state
To compare the psychological state of the participants, before, during and after the intervention. To see if the mind will grow with the body as high intensity exercise is performed, or whether the mind will tire and scores will be reduced. Measurement tactics will in include POMS, and PANAS questionnaires for mood, and stroop, isometric hand grip, operation span test, and vigilance task.

Full Information

First Posted
January 14, 2013
Last Updated
June 6, 2015
Sponsor
McMaster University
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1. Study Identification

Unique Protocol Identification Number
NCT01776359
Brief Title
Effects of High Protein Intake With Intense Exercise and Energy Deficit
Acronym
RIPPED
Official Title
Effects of High Protein Intake With Intense Exercise and Energy Deficit
Study Type
Interventional

2. Study Status

Record Verification Date
June 2015
Overall Recruitment Status
Completed
Study Start Date
February 2013 (undefined)
Primary Completion Date
July 2014 (Actual)
Study Completion Date
December 2014 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
McMaster University

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
A four week intervention will take place with the participants. They will undergo 6 days a week of high intensity training. They will also be at a 40% energy deficiency. One group will have a normal intake of protein, 1.2g/kg, while the other will have 2.4g/kg. It is our thesis that the participants with the higher protein will retain more lean mass.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Overweight
Keywords
Muscle, Protein, Diet, Exercise

7. Study Design

Primary Purpose
Basic Science
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
Participant
Allocation
Randomized
Enrollment
40 (Actual)

8. Arms, Groups, and Interventions

Arm Title
High Protein
Arm Type
Active Comparator
Arm Description
High Protein
Arm Title
Low Protein
Arm Type
Placebo Comparator
Arm Description
Low Protein
Intervention Type
Dietary Supplement
Intervention Name(s)
High Protein
Intervention Description
2.4g/kg of protein
Intervention Type
Dietary Supplement
Intervention Name(s)
Low Protein
Intervention Description
1.2g/kg of protein
Primary Outcome Measure Information:
Title
Body Composition
Description
To compare the effect of normal protein intake (1.2 g/kg per day) and increased protein intake (2.4 g/kg per day) on body composition over a 4 week period of energy restriction in young males (18-30), with intense exercise training. Body composition will be measured via DXA, Bod Pod, Bio-impedance, skin folds.
Time Frame
4 weeks
Secondary Outcome Measure Information:
Title
Psychological state
Description
To compare the psychological state of the participants, before, during and after the intervention. To see if the mind will grow with the body as high intensity exercise is performed, or whether the mind will tire and scores will be reduced. Measurement tactics will in include POMS, and PANAS questionnaires for mood, and stroop, isometric hand grip, operation span test, and vigilance task.
Time Frame
4 weeks

10. Eligibility

Sex
Male
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
30 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: 18-30 males Healthy Exclusion Criteria: more than 15% body fat 35-50ml/kg/min VO2 BMI grater than 27
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Stuart M Phillips, PhD
Organizational Affiliation
McMaster University
Official's Role
Principal Investigator
Facility Information:
Facility Name
McMaster University
City
Hamilton
State/Province
Ontario
ZIP/Postal Code
L8S 4L8
Country
Canada

12. IPD Sharing Statement

Citations:
PubMed Identifier
19927027
Citation
Mettler S, Mitchell N, Tipton KD. Increased protein intake reduces lean body mass loss during weight loss in athletes. Med Sci Sports Exerc. 2010 Feb;42(2):326-37. doi: 10.1249/MSS.0b013e3181b2ef8e.
Results Reference
background
PubMed Identifier
10838463
Citation
Demling RH, DeSanti L. Effect of a hypocaloric diet, increased protein intake and resistance training on lean mass gains and fat mass loss in overweight police officers. Ann Nutr Metab. 2000;44(1):21-9. doi: 10.1159/000012817.
Results Reference
background
PubMed Identifier
6704368
Citation
Butterfield GE, Calloway DH. Physical activity improves protein utilization in young men. Br J Nutr. 1984 Mar;51(2):171-84. doi: 10.1079/bjn19840021.
Results Reference
background
PubMed Identifier
26817506
Citation
Longland TM, Oikawa SY, Mitchell CJ, Devries MC, Phillips SM. Higher compared with lower dietary protein during an energy deficit combined with intense exercise promotes greater lean mass gain and fat mass loss: a randomized trial. Am J Clin Nutr. 2016 Mar;103(3):738-46. doi: 10.3945/ajcn.115.119339. Epub 2016 Jan 27.
Results Reference
derived

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Effects of High Protein Intake With Intense Exercise and Energy Deficit

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