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| Name | Class |
|---|---|
| Saskatchewan Pulse Growers | OTHER |
| Alberta Pulse Growers | OTHER |
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The objectives are to test the acute effects of different extruded pulse snacks on: 1) aerobic endurance and substrate oxidation during exercise 2) response of blood glucose, insulin and appetite on an aerobic exercise session, and 3) food intake two hours following the exercise session. The investigators hypothesize that consumption of food products containing pulse ingredients 60 minutes before exercise will increase aerobic endurance (lower oxygen consumption), decrease carbohydrate oxidation (greater respiratory quotient), and a reduction in lactate production during compared to the same exercise session following the ingestion of a non-pulse food. The investigators also hypothesize that consumption of extruded pulse snacks will lead to lower blood glucose, insulin, appetite and food intake, suggesting lower calorie compensation, following a 60-minute aerobic exercise session compared to the same exercise session following the ingestion of a non-pulse food.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Extruded snack control | Placebo Comparator | 100% corn flour |
|
| Extruded snack with small particle size pea flour | Experimental | 60% corn flour and 40% small particle size pea flour |
|
| Extruded snack with large particle size pea flour | Experimental | 60% corn flour and 40% large particle size pea flour |
|
| Extruded snack with lentil flour | Experimental | 60% corn flour and 40% lentil flour |
|
| Extruded snack navy bean flour | Experimental | 60% corn flour and 40% navy bean flour |
|
| Extruded snack with pinto bean flour | Experimental | 60% corn flour and 40% pinto bean flour |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Control | Other | Non pulse extruded snack |
| |
| Small particle size pea flour |
| Measure | Description | Time Frame |
|---|---|---|
| Plasma Glucose and Insulin Concentrations | Measured in blood using intravenous catheter at 14 time points, used to calculate area under curve (AUC). Glucose will be determined by automated methods using Abbot Spectrum CCX Analyzer, and Insulin will be measured by commercially available RIA kits. (Composite measure) | 0 - 240 min |
| Food Intake | Ad-libitum meal. Food consumed measured by weight. | at 120 min |
| Subjective Appetite | Measured by VAS questionnaire at 14 time points, used to calculate area under curve (AUC).( Composite measure) | 0-240 min |
| Exercise intensity | Sixty minute exercise protocol at minutes 60 to 120. Oxygen consumption measured during exercise at 3 time points. | 60 minutes |
| Measure | Description | Time Frame |
|---|---|---|
| Lactate concentration | 60 minute exercise protocol at minutes 60 to 120. Measured before, during, and exercise exercise at 3 time points | 60 minutes |
| Palatability of treatments | Measured by VAS questionnaire |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Peter JH Jones, PhD | University of Manitoba, Richardson Centre for Functional Foods and Nutraceuticals | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Richardson Centre for Functional Foods and Nutraceuticals | Winnipeg | Manitoba | R3T 2N2 | Canada |
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| ID | Term |
|---|---|
| D003920 | Diabetes Mellitus |
| D009765 | Obesity |
| ID | Term |
|---|---|
| D044882 | Glucose Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
| D004700 | Endocrine System Diseases |
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|
| Other |
Pulse extruded snack |
|
| Large particle size pea flour | Other | Pulse extruded snack |
|
| Lentil flour | Other | Pulse extruded snack |
|
| Navy bean flour | Other | Pulse extruded snack |
|
| Pinto bean flour | Other | Pulse extruded snack |
|
| at 5 minutes |
| Palatability of meal | Measured by VAS questionnaire | at 260 minutes |
| Physical comfort | Measured by VAS questionnaire at 13 time points, used to calculate area under curve (AUC) (Composite measure) | 0-240 min |
| Energy/fatigue | Measured by VAS questionnaire at 13 time points, used to calculate area under curve (AUC) (Composite measure) | 0-240 min |
| Heart rate | Heart rate monitored over a 60 minute exercise protocol. To monitor exercise intensity and give a measure of fatigue (cardiovascular drift) | 60-120 min |
| Substrate Oxidation | Measured during 60 minute exercise protocol at minutes 60-120. Respiratory quotient measured during exercise at 3 time points. | 60 minutes |
| D050177 | Overweight |
| D044343 | Overnutrition |
| D009748 | Nutrition Disorders |
| D001835 | Body Weight |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |