Track topics on Twitter Track topics that are important to you
Several studies have shown that high intensity intermittent sprints (HIIS) are more effective than moderate intensity continuous cycling (MICC) in reducing fat mass and improving insulin resistance in normal weight individuals. Changes in the appetite-regulatory system in response to exercise are likely to explain, at least partially, the better outcome observed after HIIS. Unfortunately, there are no studies comparing the impact of different types of acute aerobic exercise on the release of appetite-regulating hormones, subjective feelings of appetite and subsequent energy intake (EI).
The primary objective of this study is to investigate the effects of acute isocaloric bouts of HIIT and MICC or a short duration sprint, in comparison with a resting control condition, on the postprandial release of appetite-regulating hormones, subjective feelings of appetite and subsequent EI in obese individuals. The investigators hypothesize that an isocaloric session of HIIS will result in a better short-term appetite control compared with MICC, by reducing hunger feelings and subsequent food intake more than MICC and by inducing a larger increase in the release of satiety gut peptides compared with the MICC.
This will be a randomised cross-over study with four legs. Participants will act as their own controls and will be assigned to the four experimental conditions (resting, HIIS, MICC and SDS), 1 week apart, in a counter-balanced order.
Participants will be asked to come to the Unit five times: one preliminary session and four experimental conditions (resting, HIIS and MICC isocaloric sessions and SDS). In the preliminary session, anthropometric data (weight and height) will be collected and a maximal fitness test performed, using a cycle ergometer.
For the four experimental conditions, participants will be asked to arrive at approximately 8.00, having fasted for at least 10 hours, and a cannula will be inserted into an antecubital vein. Two fasting blood samples will be taken and a standard breakfast offered. After that, serial blood samples will be taken at regular intervals for a period of 3h.
Participants will be asked to rate their subjective feelings of hunger and fullness using visual analogue scales (VAS) throughout each study morning at different time points. Three hours after breakfast, participants will be placed in individual rooms, presented with a standardized lunch and instructed to rate the taste and palatability of the food presented.
Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Basic Science
Norwegian University of Science and Technology
Norwegian University of Science and Technology
Published on BioPortfolio: 2014-07-24T14:01:00-0400
The aim of the present study is to compare the effect of an exercise alone versus. An exercise followed by the ingestion of an energy replacement snack on the following energy intake, food...
Ghrelin is a GH-secretagogue gastrointestinal hormone that regulates feeding behavior by interacting directly with hypothalamic centers in concert with other negative and permissive neurom...
The purpose of this project is to establish a Center of Excellence in Research on Obesity that will focus on severe obesity. The prevalence of severe obesity (i.e., Class 2 and 3 obesity;...
Physical activity is mainly considered and use for its impact on energy expenditure in the treatment of obesity, and less is known concerning its indirect effects on energy intake. The aim...
Obesity before and during pregnancy is associated with a higher risk for a number of obstetric and metabolic complications in women and their offspring. Of particular importance, obese wom...
High Intensity Interval Exercise (HIIE) is currently advocated for its beneficial effect on body composition and cardio-metabolic health in children and adolescents with obesity; however its impact on...
Obesity-induced inflammation associated with increased risk for colorectal cancer (CRC). The role of diet and exercise in modulating increased CRC risk in obesity, and the potential role of altered he...
Practice of meditation or exercise may enhance health to protect against acute infectious illness.
MicroRNAs (miRNAs), a class of non-coding RNAs, are involved in the regulation of gene expression and numerous biological processes, including inflammation and metabolism in obese populations. Emergin...
Exercise and dehydration may be associated with a compromised kidney function and potential signs of kidney injury. However, the kidney responses to exercise of different durations and hypohydration l...
The exercise capacity of an individual as measured by endurance (maximal exercise duration and/or maximal attained work load) during an EXERCISE TEST.
Controlled physical activity, more strenuous than at rest, which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used. The intensity of exercise is often graded, using criteria such as rate of work done, oxygen consumption, and heart rate.
Activities related to WEIGHT REDUCTION in patients with OBESITY. Treatment methods include DIET; EXERCISE; BEHAVIOR MODIFICATION; medications; and BARIATRIC SURGERY.
A condition of having excess fat in the abdomen. Abdominal obesity is typically defined as waist circumferences of 40 inches or more in men and 35 inches or more in women. Abdominal obesity raises the risk of developing disorders, such as diabetes, hypertension and METABOLIC SYNDROME X.
Tapering-off physical activity from vigorous to light, to gradually return the body to pre-exercise condition and metabolic state.
Obesity is the condition in which excess fat has accumulated in the body (mostly in subcutaneous tissues). clinical obesity is considered to be present when a person has a BMI of over 30 (Oxford Dictionary of Medicine). It is becoming increasing common i...
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...