Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

Nutrition and Physical Activity for Obesity (PRONAF)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified September 2010 by Universidad Politecnica de Madrid.
Recruitment status was:  Recruiting
Universidad Complutense de Madrid
Hospital Universitario La Paz
Hospital Universitario Marqués de Valdecilla
Information provided by:
Universidad Politecnica de Madrid Identifier:
First received: April 30, 2010
Last updated: September 29, 2010
Last verified: September 2010

At the present time, scientific consensus exists on obesity multifactorial etiopatogenia. As well, professionals and researchers agree that the treatment must approach several scopes, such as dietetic, physical activity, pharmacologic and surgical. These two last ones should not be the first election and must be reserved for those cases of morbid obesities or in case the previous ones have failed. The combination of diet and exercise is still not sufficiently studied, in special, the addition of strength training, as we propose in this project, for which established intervention protocols do not exist, and that could suppose an additional benefit in the reduction of risk factors.

Therefore, the objectives that we aim in this project are enumerated below:

  • To discover which are the most effective training protocols and to determine what type of exercise combined with nutrition is more appropriate for obesity intervention programs.
  • To establish the relationship between markers related with cardiovascular risk (adopokines and lipid profile) and the different intervention protocols proposed.
  • To describe the influence of nine genetic polymorphisms (selected by their relationship with the energy expense and the physical yield) on the effect of different training protocols.
  • To determine how important is body composition (fat mass and muscle mass mainly) in total daily energy expenditure.
  • To establish rules of nutritional and exercise intervention that can be applied in public and private training centers. If the proposed objectives are fulfilled, this would contribute to an improvement in patients health in long term, along with an enormous saving in public health. Therefore, the purpose of this project is to propose new lines of intervention in overweight and obese adults that, until now, little have been investigated. This way, resistance training is proposed in combination with cardiovascular training and endocrinologic treatment. It fits to emphasize that, as far as we know, it is the first project of these characteristics, that puts in touch the public and private sector (hospitals, universities and fitness area), to establish standardized relations protocols to allow a close pursuit of obese patients.

Condition Intervention Phase
Other: Exercise
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
Official Title: Nutrition and Physical Activity Programs for Obesity Treatment (PRONAF)

Resource links provided by NLM:

Further study details as provided by Universidad Politecnica de Madrid:

Primary Outcome Measures:
  • Body composition [ Time Frame: After 16 weeks of intervention ]
  • Health status [ Time Frame: After 16 weeks of intervention ]
  • Cardiorespiratory fitness [ Time Frame: After 16 weeks of intervention ]

Secondary Outcome Measures:
  • Quality of life [ Time Frame: After 16 weeks of intervention ]

Estimated Enrollment: 120
Study Start Date: January 2009
Estimated Study Completion Date: December 2011
Estimated Primary Completion Date: January 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Nutrition
This groups will follow a diet.
Other: Exercise
Different groups will carry out different exercise protocols during 16 weeks under the same nutritional intervention.
Experimental: Nutrition + resistance training
In this group, nutrition and resistance training will be combined.
Other: Exercise
Different groups will carry out different exercise protocols during 16 weeks under the same nutritional intervention.
Experimental: Nutrition + aerobic training
In this group nutrition and aerobic training will be combined.
Other: Exercise
Different groups will carry out different exercise protocols during 16 weeks under the same nutritional intervention.
Experimental: Nutrition + mixed training
In this group the nutrition will be combined with 50% of resistance training plus 50% of aerobic training.
Other: Exercise
Different groups will carry out different exercise protocols during 16 weeks under the same nutritional intervention.


Ages Eligible for Study:   18 Years to 50 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Volunteers: men and women from Comunidad de Madrid (Zone 5 of Health System) who sign the informed consent.
  • Ages 18 - 50 years old.
  • Pre-menopausal.
  • Body mass index (BMI) of 30 - 35 kg•m-2 (both included).
  • Able to attend exercise classes 3 times per week (Monday, Wednesday and Friday). No plans for excessive travel. No plans to move from area for study period (January 2011 - June 2011, both included).
  • Able to follow the nutritional treatment (avoid medication or substances known to interfere with body weight regulation, including anti-depressive medication, diuretics, etc., 15 days before study starts).
  • Willing to not participate in other formal or informal weight loss program during the period of the study.
  • Sedentary (less than once a week of training or two hours of physical activity class).

Exclusion Criteria:

  • Smoking within six months, or use of tobacco or nicotine product.
  • Women with irregular menstrual cycle (except with hormone therapy).
  • Following a weight loss diet, vegetarians or food restriction due to religion.
  • Self-reported weight loss or gain >5% in past 6 months.
  • Are not pregnant, or haven´t been in the past six months. Are not currently nursing or planning to become pregnant during the study period (year 2011).
  • Need a special diet by associated disease (celiac disease or chronic renal insufficiency).
  • Have metabolic syndrome or fulfill three or more of the following criteria: abdominal obesity (waist diameter > 102 cm in men and > 88 cm in women), blood pressure ≥ 130/85 mm Hg, basal glycemia ≥ 110 mg/dL, triglyceride level > 150 mg/dL and C-HDL < 40 mg/dL in women and < 50 mg/dL in men.
  • Diabetes.
  • Anemia (Hct < 37%).
  • Uncontrolled high blood pressure (Systolic > 160 mm Hg or diastolic > 100 mm Hg in rest). Current use of more than one anti-hypertensive medication.
  • Substance abuse (drugs, alcohol…). High or moderate consumes of alcohol. More than 2 glasses to the day of any alcoholic substance. Current use of diuretics, beta blockers, steroids or blood thinners.
  • Contraindication to exercise. Alterations, syndromes or diseases detected by electrocardiogram (EKG) o echocardiography. Have injuries o pathologies of the locomotive apparatus that prevent the correct execution of the exercises of the program. Any illness that would prevent participation in a moderate-intense exercise program.
  • Have had cancer in the past 5 years, except skin cancer.
  • Coronary artery disease, liver disease, pulmonary disease, renal disease or other systemic disorders.
  • History or evidence of cardiovascular disease, alterations, syndromes or other mayor chronic illness. Have history of heart disease, heart attacks or heart surgery.
  • Have any illness known to interfere with body weight loss: clinical depression, eating disorder (anorexia, bulimia, etc.), psychological diseases (schizophrenia, etc.), dementia or cognitive function decreased, hypothyroidism no controlled or history of genetic or chromosomal disorder.
  • Have had bariatric surgery or stomach bypass surgery.
  • Gross physical impairment.
  • Blindness or retinopathy.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01116856

Contact: Pedro J Benito, PhD +34 91 336 40 53

Pedro J. Benito Peinado Recruiting
Madrid, Spain, 28080
Principal Investigator: Pedro J Benito, Ph. D.         
Facultad de Ciencias de la Actividad Física y del Deporte Recruiting
Madrid, Spain, 28939
Contact: Pedro J Benito, PhD    +34913364070   
Sponsors and Collaborators
Universidad Politecnica de Madrid
Universidad Complutense de Madrid
Hospital Universitario La Paz
Hospital Universitario Marqués de Valdecilla
Principal Investigator: Pedro J Benito, PhD Department of Health and Human Performance, Universidad Politécnica de Madrid
  More Information

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):

Responsible Party: Pedro J. Benito, Universidad Politécnica de Madrid Identifier: NCT01116856     History of Changes
Other Study ID Numbers: PRONAF
Study First Received: April 30, 2010
Last Updated: September 29, 2010

Keywords provided by Universidad Politecnica de Madrid:
Body composition
Lipidic profile

Additional relevant MeSH terms:
Nutrition Disorders
Body Weight
Signs and Symptoms processed this record on April 28, 2017