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Whilst the effects of manipulating the macronutrient content of foods on appetite and energy intake has been relatively well studied at rest, little is known about these responses in a post-exercise context. The effect of post-exercise nutrition on recovery from or adaptation to exercise has been well studied. However, many exercisers do so for weight management and thus any post-exercise nutrition might impact on energy balance and might need to be carefully considered. This study will examine the impact of manipulating the composition of a recovery drink consumed after resistance exercise on subsequent appetite and energy intake.
Subjects perform a bout of lower body resistance exercise lasting ~50 min and immediately post-exercise they consume one of two recovery drinks over a 5 min period. Over the next 60 min subjective appetite responses will be measured and then 60 min after drink ingestion, subjects will consume an ad-libitum meal.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Protein | Experimental | In this arm the subjects were provided with a PROTEIN drink to consume after exercise. This protein drink contained whey protein isolate that provided 0.3 g/ kg body mass of protein. |
|
| Carbohydrate | Experimental | In this arm the subjects were provided with a CARBOHYDRATE drink to consume after exercise. This carbohydrate drink was energy matched to the protein drink in the other arm of the experiment. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Protein drink | Dietary Supplement | The protein drink was administered during this trial |
| |
| Measure | Description | Time Frame |
|---|---|---|
| Ad-libitum energy intake | Assessed via a homogenous pasta meal | 65 min post-exercise |
| Subjective appetite (hunger) | Assessed via 100 mm visual analogue scales | 150 min |
| Subjective appetite (fullness) | Assessed via 100 mm visual analogue scales | 150 min |
| Subjective appetite (desire to eat) | Assessed via 100 mm visual analogue scales | 150 min |
| Subjective appetite (prospective food consumption) | Assessed via 100 mm visual analogue scales | 150 min |
| Measure | Description | Time Frame |
|---|---|---|
| Pleasantness of study drinks | Assessed via 100 mm visual analogue scales | Immediately after drinking |
| Aftertaste of study drinks | Assessed via 100 mm visual analogue scales |
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Inclusion Criteria:
Exclusion Criteria:
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| Carbohydrate drink |
| Dietary Supplement |
The carbohydrate drink was administered in this trial |
|
| Immediately after drinking |
| Saltiness of study drinks | Assessed via 100 mm visual analogue scales | Immediately after drinking |
| Bitterness of study drinks | Assessed via 100 mm visual analogue scales | Immediately after drinking |
| Sweetness of study drinks | Assessed via 100 mm visual analogue scales | Immediately after drinking |
| Creaminess of study drinks | Assessed via 100 mm visual analogue scales | Immediately after drinking |
| Thickness of study drinks | Assessed via 100 mm visual analogue scales | Immediately after drinking |
| Stickiness of study drinks | Assessed via 100 mm visual analogue scales | Immediately after drinking |
| Fruitiness of study drinks | Assessed via 100 mm visual analogue scales | Immediately after drinking |
| Refreshment of study drinks | Assessed via 100 mm visual analogue scales | Immediately after drinking |
| Eating rate | mean eating rate determined at ad-libitum meal | 65 min post-exercise |