Nighttime Macronutrient Choice and Combined Resistance and High-intensity Interval Training

Completed · Not applicable

Conditions studied: Obesity

In brief

Obesity is recognized as a major public health concern because of its link to potential fatal complications arising from metabolic and cardiovascular diseases. Despite many pharmacological advances in this field, lifestyle strategies that emphasize proper nutrient intake and physical activity continue to be the primary strategy for individuals to fight obesity. However, controversy exists regarding the type and timing of exercise and specific nutrient intake to maximize fat loss, muscle gain, and beneficial cardio-metabolic adaptations derived from these lifestyle interventions. Furthermore, limited data exists investigating the impact of nutrient timing at times other than immediately before or after exercise and no studies have examined time-of-day nutritional intake in overweight or obese individuals.In addition, many individuals attempting to improve body composition and cardio-metabolic health are concerned with what food choices are appropriate in the late evening to support positive physiological adaptations. However, research-based information examining this topic is scarce. The investigators hypothesize that consumption of a protein beverage in the late evening before sleep will improve body composition, cardio-metabolic health, and adaptations to exercise more than an isocaloric placebo beverage. The investigators also hypothesize that the different digestion and absorption kinetics of whey and casein proteins will elicit different effects on the measures variables.

Key facts

Study ID

NCT01830946

Run by

Florida State University

People needed

59

Starts

2011-09-01

Expected to finish

2012-11-01

Last updated by the study team

2013-04-15

Who can join

Age: 18 and older, up to 45. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Healthy men and women
• Sedentary(exercises <2 days per week for more than 40 minutes per session within the past 6 months)
• overweight or obese (BMI ≥ 25)

You may not qualify if…

• Those that exercise for more than 2 days per week for more than 40 minutes per session (within the past 6 months),
• Those that have uncontrolled hypertension (Blood Pressure (BP)>160/100 mmHg)
• Those that take BP medications
• Those diagnosed cardiovascular disease
• Those diagnosed with stroke
• Those diagnosed with diabetes
• Those diagnosed with thyroid dysfunction
• Those diagnosed with kidney dysfunction
• Those with any musculoskeletal complications that would impede exercise
• Those that smoke heavily (>20 cigarettes per day)
• Those that take cholesterol medication
• Those that take nutritional supplements (except for a multivitamin)
• Those with any allergies to milk products

Where it is running

• Florida State University — Tallahassee, Florida, United States

Full record on ClinicalTrials.gov

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