An interventional study of Exercise in Acute Exercise and Addictive Behavior, sponsored by University of Miami. Completed at 1 site in United States. Open to participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-09-18.
Sponsored by University of Miami · Not applicable, Interventional, and Treatment
The study will use stress inducing tasks to determine if there are significant improvements in mood, chocolate cravings, and attentional bias to chocolate in overweight/obese chocolate abusers following rest and a bout of high intensity interval exercise.
The purpose of this research study is to investigate whether a single high intensity interval exercise (HIIE) bout, following two stress-inducing tasks, reduces addictive behavior to chocolate. Volunteers must complete the consent form before being able to participate in two days of testing (exercise day and control day) which will be presented in randomized order. The two days will be separated by a one to 7 day washout period. Subjects will be required to submit a three day chocolate diary then abstain from chocolate on the 4th day. They will also be asked to record everything they eat and drink on the day before and the morning of the study and list three types of chocolate they crave most. Two stress-inducing tasks will be performed on both days followed by completion of either 26 minutes of HIIE or seated resting condition followed by the completion of two mood and craving questionnaires. They will finally be asked to complete a task that measures the amount of attention they pay to chocolate. Statistical analyses will be conducted to determine the effect of either exercising or not on addictive behaviors to chocolate.
521 studies on the registry are indexed under Behavior, Addictive; 124 are open to participants now.
This study's enrollment of 12 is below the median of 62 across 399 interventional studies indexed under Behavior, Addictive.
Browse Behavior, Addictive studies →University of Miami is the lead sponsor of 840 studies on the registry; 164 are open to participants now.
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Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
They will do a 26-min bout of high intensity interval exercise.
Behavioral: Exercise
They will sit quietly for 26 minutes without access to electronic devices or reading materials.
Exercise will be performed on a stationary bicycle ergometer.
Attentional Bias (AB) to chocolate using a modified visual dot probe task (Kemps et al, 2009)
AB will be measured using a modified visual dot probe task, which consists of measuring reaction times to neutral images versus chocolate images (Kemps et al, 2009). Neutral images will consist of non-chocolate related items (i.e. office supplies). After 5 practice trials, 60 critical trials will be displayed which consist of either chocolate or neutral images (presented side by side). A black fixation cross will appear behind one of the images, and the subject has to respond as quickly as possible to which image the cross is located behind. The faster the subject responds to the cross behind the chocolate image, the higher their attentional bias is to chocolate. AB will be measured on both days following both the exercise and control conditions.
Time frame: 15 minutes
Affective Valence measured by The Feeling Scale (Hardy & Rejeski, 1989)
The Feeling Scale measures affective valence using an 11 point range from -5 to +5 with higher values indicating more pleasure. It is administered on both days following both the exercise and the control condition.
Time frame: 1 minute
Affective Activation measured by the Felt Arousal Scale (Svebak & Murgatroyd, 1985)
The Felt Arousal Scale measures affective activation using a 6 point range from 1 to 6 with the higher values indicating greater activation and arousal. It is administered on both days following both the exercise and the control condition.
Time frame: 1 minute
Cravings for chocolate using the State Food Cravings Questionnaire (Cepeda-Benito et al, 2000)
This questionnaire measures the acute intensity of chocolate cravings using 15 items with 3 items per dimension. The five state dimensions of food cravings are: an intense desire to consume food, anticipation of positive reinforcement from eating, anticipation of relief from negative states and feelings as a result of eating, lack of control over eating if food is eaten, and craving as a hunger/physiological state. The dimensions will be evaluated using a 5 point Likert scale with the higher score meaning more intense cravings for chocolate. The questionnaire will be administered on both days following both the exercise and the control condition.
Time frame: 5 minutes
Plan to share: No
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This study is completed, as verified in Sep 2018. You cannot join it, but the record below documents what was studied.
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