NCT01622634

Brief Summary

The objective of this study is to determine the combined effects of a high-protein diet and high-intensity training on metabolic syndrome risk factors in women aged 30-65.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
49

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Feb 2012

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2012

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

June 15, 2012

Completed
4 days until next milestone

First Posted

Study publicly available on registry

June 19, 2012

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2013

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2013

Completed
Last Updated

September 25, 2015

Status Verified

September 1, 2015

Enrollment Period

1.1 years

First QC Date

June 15, 2012

Last Update Submit

September 24, 2015

Conditions

Keywords

cardiovascular diseasediabetes mellitus

Outcome Measures

Primary Outcomes (1)

  • Metabolic Syndrome Risk Factors

    1. Post-Prandial Lipemia (and/or metabolic responses including insulin, glucose, triglycerides and free-fatty acids) to: a) a high fat meal challenge and b) a meal challenge similar to the higher protein or carbohydrate treatment arm. After an overnight fast and baseline blood draws, participants will consume a small meal and have their blood sampled every 30 minutes for 3 hours. 2. Biomarkers for Cardiovascular Disease and Diabetes Mellitus. Fasting blood samples for serum lipids, glucose, insulin and systemic inflammation (C-reactive protein) will be taken after an overnight fast.

    Change [Baseline to 6 Weeks]

Secondary Outcomes (1)

  • Satiety

    Change [Baseline to 6 weeks]

Study Arms (4)

Higher Protein Diet (PRO)

ACTIVE COMPARATOR
Other: Higher PRO Diet

Higher Carbohydrate Diet (CARB)

ACTIVE COMPARATOR
Other: Higher CARB Diet

PRO & Interval Exercise (PRO+EX)

ACTIVE COMPARATOR
Behavioral: Sprint Interval ExerciseOther: Higher PRO Diet

CARB & Interval Exercise (CARB+EX)

ACTIVE COMPARATOR
Behavioral: Sprint Interval ExerciseOther: Higher CARB Diet

Interventions

Participants will undergo sprint interval training on a cycle ergometer 3 times weekly for 6 weeks. Each training session begins with a 5-minute active warm-up. The warm-up is followed by 4-7 bouts of 30 seconds of all-out sprints and 4 minutes of active recovery.

Also known as: High Intensity Training, Sprint Interval Cycling
CARB & Interval Exercise (CARB+EX)PRO & Interval Exercise (PRO+EX)

Participants in the PRO and PRO+EX groups will meet weekly with a diet specialist on staff to monitor their intake and compliance with the high protein diet.

Also known as: Higher Protein Reduced Carbohydrate Diet
Higher Protein Diet (PRO)PRO & Interval Exercise (PRO+EX)

Participants in the CHO and CHO+EX groups will meet weekly with a diet specialist on staff to monitor their intake and compliance with the higher carbohydrate diet.

Also known as: Conventional Higher Carbohydrate Diet
CARB & Interval Exercise (CARB+EX)Higher Carbohydrate Diet (CARB)

Eligibility Criteria

Age30 Years - 65 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Women aged 30-65 yrs of age, inclusive
  • Waist circumference \> 88 cm.
  • Weight stable (within 2 kg) for past 6 mo
  • Sedentary/Low-active (defined as \<300minutes/wk light or moderate activity, with no vigorous activity in last 6 months)
  • At risk for MetS \[defined as having 2 of the following 4 factors: 1) hypertriglyceridemia defined as \> 150 mg/mL, 2) low HDL cholesterol defined \< 50 or on medication, 3) elevated blood pressure defined as \> 130/\>85 Hg or taking medications or 4) hyperglycemia defined as fasting blood glucose \> 100 or glycated hemoglobin \> 6.5 or taking medications.
  • Willing to be randomized to the four treatment groups

You may not qualify if:

  • Any chronic disease/condition that would not permit exercise or dietary restriction (including egg allergy or refusal to incorporate eggs into the diet) or alter interpretation of data. Examples include, but are not limited to:
  • cardiopulmonary disease (e.g. recent myocardial infarction, unstable angina, stroke) or unstable disease; 2) severe orthopedic, musculoskeletal or neuromuscular impairments that would contradict exercise; 3) sensory impairments that interfere with following directions; 4) diagnosis of dementia; 5) history of malignancy during the past 5 yr; 6) medication use that impacts primary outcomes of interest (e.g. statins); 7) weight greater than 400 pounds due to DXA weight and size limitations; 8) Uncontrolled blood pressure defined as \> 160/\>100 Hg.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Body Composition and Metabolism Lab, Ramsey Center, University of Georgia

Athens, Georgia, 30602, United States

Location

MeSH Terms

Conditions

Metabolic SyndromeCardiovascular DiseasesDiabetes Mellitus

Interventions

High-Intensity Interval Training

Condition Hierarchy (Ancestors)

Insulin ResistanceHyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Intervention Hierarchy (Ancestors)

Physical Conditioning, HumanExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Ellen M. Evans, PhD

    University of Georgia

    PRINCIPAL INVESTIGATOR
  • Kirk J. Cureton, PhD

    University of Georgia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor, Principal Investigator

Study Record Dates

First Submitted

June 15, 2012

First Posted

June 19, 2012

Study Start

February 1, 2012

Primary Completion

March 1, 2013

Study Completion

March 1, 2013

Last Updated

September 25, 2015

Record last verified: 2015-09

Locations