Blood Cell Response to Exercise

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01872273
Recruitment Status : Withdrawn (Project never funded. No subjects were recruited.)
First Posted : June 7, 2013
Last Update Posted : July 1, 2016
Information provided by (Responsible Party):
Matthew Picklo, USDA Grand Forks Human Nutrition Research Center

May 1, 2013
June 7, 2013
July 1, 2016
February 2013
June 2016   (Final data collection date for primary outcome measure)
Platelet Reactivity [ Time Frame: Baseline, post-intervention (24 hours), & time points during the exercise phase: prior to exercise (-25 min, -10 min, - 1 min), 10 minutes into the routine, at completion (25 minutes), and 20 & 60 minutes following completion ]
We hypothesize that moderate physical exercise will increase platelet reactivity in sedentary individuals with metabolic syndrome. Platelet reactivity will be measured by flow cytometry using anti-CD61 antibodies as a marker for platelets and anti-CD62 (P-selectin) as a marker of platelet activation. This will be measured at baseline, post-intervention and time points post-baseline in each subject.
Same as current
Complete list of historical versions of study NCT01872273 on Archive Site
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Blood Cell Response to Exercise
Blood Cell Response to Exercise
Moderate exercise is recommended to improve cardiovascular health in obese and overweight people particularly with metabolic syndrome (MetS) that have hypertension, elevated fasting blood sugar, and elevated blood lipids. This study is being done to determine how platelets respond when a person performs an initial period of moderate exercise.
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Observational Model: Case-Only
Time Perspective: Prospective
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Non-Probability Sample
Obese adults with Metabolic Syndrome
Metabolic Syndrome
Other: Moderate Physical Exercise
This intervention is comprised of two separate visits at least one week apart. The purpose of visit 1 is to determine the cycle ergometer workload that produces a moderate exercise intensity of 60% heart rate reserve to be used on visit 2. The purpose of visit 2 is to determine changes in platelet reactivity in response to moderate exercise.
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
June 2016
June 2016   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • 30-60 years old
  • BMI >/=26 and <40 kg/m2
  • not planning to or currently attempting to gain or lose weight
  • low reported omega-3 fatty acid intake per Omega-3 Checklist
  • Metabolic Syndrome as define 3/5 of the following:Waist circumference: men > 102 cm women > 88 cm, triglycerides > 150 mg/dL, HDL cholesterol: men < 40 mg/dL women < 50 mg/dL,Blood pressure >130/>85 mmHg,Fasting glucose > 100 mg/dL (Hypertensive subjects are eligible if taking thiazide diuretics NOT ACE inhibitors beta blockers)

Exclusion Criteria:

  • smoke or use tobacco or nicotine in any form (including pills and patches)
  • take any medication that makes you unable to exercise
  • have established cardiovascular, pulmonary, and/or metabolic disease such as diabetes
  • have uncontrolled hypertension
  • have alcohol, anabolic steroid, or other substance abuse issues
  • consume more than 3 alcoholic drinks/week
  • have joint or muscle injuries that affects your ability to exercise
  • have cancer (other than skin cancer or carcinoma in situ of the cervix
  • pregnant or lactating
  • currently exercise regularly
  • taking non-steroidal anti-inflammatory medications (aspirin, Aleve, Advil, ibuprofen, naproxen
  • take lipid modifying medications such as statins (Lipitor, Zocor)
  • take medications for blood glucose such as insulin or metformin
  • take medications that affect platelet functions (Plavix)
  • taking omega-3 supplements (fish or flax oil)
Sexes Eligible for Study: All
30 Years to 60 Years   (Adult)
Contact information is only displayed when the study is recruiting subjects
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United States
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Plan to Share IPD: No
Matthew Picklo, USDA Grand Forks Human Nutrition Research Center
USDA Grand Forks Human Nutrition Research Center
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Principal Investigator: Matthew Picklo, PhD USDA Grand Forks Human Nutrition Research Center
USDA Grand Forks Human Nutrition Research Center
June 2016