Effects Of Ingesting A Low Glycemic Whey Protein Energy Bar Prior, During And Following Resistance Exercise And Conditioning On Performance And Recovery
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 2
- 主要终点
- Exercise Glucose Response
研究概览
简要总结
The purpose of this study is to determine the effects of ingesting a low glycemic whey protein energy bar prior, during and following resistance exercise and conditioning on performance and recovery.
详细描述
Fit-joy is a commercially available food bar marketed as having a low glycemic index and being relatively high in dietary fiber. The fiber contained within this product is isomalto-oligosaccharides (IMO) which is a food ingredient with a relative sweetness level equal to approximately 60% of sucrose. Chemically, IMO is a mixture of glucose oligomers with alpha - (1-6) - linkages. Short and hard exercise produces muscle damage and soreness. The Fit-joy bar contains whey protein that previous research in the investigator's lab showed may be able to decrease the muscle damaging effects of exercise while also helping with muscle growth. The purpose of this study will be to determine if eating a Fit-joy bar before and in the middle of a hard weight training workout will promote positive results during the workout and 48 hours after the workout.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Health Services Research
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 35 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Participant is between the ages of 18 and 35
- •Participant is apparently healthy
- •Participant is involved in a a consistent strength and conditioning program consisting of upper and lower body resistance exercises as well as cardiovascular or sprint conditioning training (for at least the past year for 2-4 days/week), bench press at least your body weight and squat at least 1.5 times your body weight and/or leg press twice your body weight.
- •Participant has a Body Mass Index (BMI) < 24.9 or Body Fat Percentage (%BF) < 25.0
排除标准
- •Participant has a history of treatment for metabolic disease (i.e., diabetes), hypertension, hypo-tension, thyroid disease, arrhythmia, cardiovascular disease
- •Participant has a food allergy (i.e., milk, soy, egg, wheat or nuts)
- •Participant uses current prescription medication (birth control is allowed)
- •Participant is pregnant or nursing or plans to become pregnant during the next month
- •Participant has an intolerance to caffeine and/or other natural stimulants
- •Participant has a history of smoking
- •Participant drinks excessively (i.e., 12 drinks per week or more)
研究组 & 干预措施
Commercially Available Food Bar
62 g. Food Bar
干预措施: Commercially Available Food Bar (Dietary Supplement)
Placebo
25 g. Dextrose
干预措施: Placebo (Dietary Supplement)
结局指标
主要结局
Exercise Glucose Response
时间窗: Measured at baseline (0-min); 30-min post ingestion of supplement, midway (60-min) and following (90-min) resistance exercise, following sprint condition exercises (110-min), and following post-exercise assessments (130-min) during each treatment.
Changes in arterialized-venous blood glucose (mmol/L) obtained from a dry finger and analyzed by General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's).
Glucose Homeostasis: Glucose
时间窗: Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.
Changes in serum blood glucose (mmol/L) obtained from venous blood draws and analyzed General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's).
Glucose Homeostasis: Insulin
时间窗: Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.
Changes in serum insulin (µIU/mL) obtained from venous blood draws and analyzed General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's).
Glucose Homeostasis: Insulin to Glucose Ratio
时间窗: Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.
Changes the insulin to glucose ratio obtained from venous blood draws and analyzed General Linear Model multivariate and univariate analyses with repeated measures and mean change from baseline with 95% confidence intervals (CI's).
次要结局
- Maximal voluntary muscle contraction (MVC) leg extension torque(Measured prior to supplementation, following 30-min rest and 80-min of exercise, and after 48 hours of recovery from exercise during each treatment.)
- Maximal voluntary muscle contraction (MVC) leg extension work(Measured prior to supplementation, following 30-min rest and 80-min of exercise, and after 48 hours of recovery from exercise during each treatment.)
- Maximal voluntary muscle contraction (MVC) leg flexion force(Measured prior to supplementation, following 30-min rest and 80-min of exercise, and after 48 hours of recovery from exercise during each treatment.)
- Maximal voluntary muscle contraction (MVC) leg flexion power(Measured prior to supplementation, following 30-min rest and 80-min of exercise, and after 48 hours of recovery from exercise during each treatment.)
- Markers of Catabolism: Lactate Dehydrogenase(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Subjective rating of fatigue(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Subjective rating of hypoglycemia(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Subjective rating of headaches(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Subjective rating of stomach upset(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Subjective rating of readiness to perform(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Maximal voluntary muscle contraction (MVC) leg flexion work(Measured prior to supplementation, following 30-min rest and 80-min of exercise, and after 48 hours of recovery from exercise during each treatment.)
- Markers of Catabolism: Creatinine(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Stress and Sex Hormones: Testosterone(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Markers of Inflammation: Interferon Gama (IFNy)(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Markers of Inflammation: Interleukin-6 beta (IL-6)(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Subjective rating of dizziness(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Maximal voluntary muscle contraction (MVC) leg extension force(Measured prior to supplementation, following 30-min rest and 80-min of exercise, and after 48 hours of recovery from exercise during each treatment.)
- Stress and Sex Hormones: Cortisol to Testosterone Ratio(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Markers of Inflammation: Interleukin-1 beta (IL-1ß)(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Subjective rating of pain(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Agility Performance Time(Measured 30-min after ingestion of supplement and after performing 60-min of resistance exercise during each treatment.)
- Sprint Performance Times(Measured 30-min after ingestion of supplement and after performing 60-min of resistance exercise during each treatment.)
- Maximal voluntary muscle contraction (MVC) leg extension power(Measured prior to supplementation, following 30-min rest and 80-min of exercise, and after 48 hours of recovery from exercise during each treatment.)
- Maximal voluntary muscle contraction (MVC) leg flexion torque(Measured prior to supplementation, following 30-min rest and 80-min of exercise, and after 48 hours of recovery from exercise during each treatment.)
- Markers of Catabolism: Blood Urea Nitrogen(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Markers of Catabolism: BUN/Creatinine Ratio(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Markers of Catabolism: Creatine Kinase(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Stress and Sex Hormones: Cortisol(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Markers of Inflammation: Interleukin-13 (IL-13)(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Markers of Inflammation: Interleukin-4 beta (IL-4)(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Markers of Inflammation: Interleukin-8 beta (IL-8)(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
- Markers of Inflammation: Tumor Necrosis Factor alpha (TNFα)(Measured prior to supplementation (Pre), 30-min after ingestion of supplement and after performing the 80-min exercise bout (Post-Exercise), and after 48 hours of recovery from exercise bout (Recovery) during each treatment.)
研究者
Richard B. Kreider
Executive Director, Human Clinical Research Facility
Texas A&M University