Effects of Meat Protein Administration on Body Composition, Strength, Muscle Structure, Immunological and Haematological Markers in Endurance Athletes
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- Endurance Performance
研究概览
简要总结
The aim of this project is to investigate the potential benefits of combining a new protein beef hydrolysates extract with a regular endurance training programme on (a) body composition (b) performance (c) muscle structure (d) blood markers of health in athletes. As a second objective the investigators will analyse potential differences obtained from the ingestion of the new hydrolysates beef protein extract compared to the ingestion of others commercially available protein sources such as whey and non protein only carbohydrate contrast nutrients.
详细描述
This investigation involves a 10 weeks randomised, balanced, double blind parallel group between-subjects design aimed to analyse the effects of combining exercise and a post exercise nutrition strategy (hydrolysates beef protein, whey protein or a isocaloric only carbohydrate placebo) on training outcomes, body composition and blood markers after a period of regular training and feeding intervention. Participants will be divided in three-treatment groups 1) Hydrolysed meat-protein (Beef); 2) Whey (Whey) and 3) non-protein iso-energetic placebo (CHO).
Once considered eligible for the study, and after an initial familiarisation period and baseline tests, participants will be randomly assigned to one of the intervention groups: Beef; Whey and CHO. Each group will follow a 10-week periodised endurance training intervention combined with one of the three specific supplementation treatments (Beef, Whey or CHO). Measurements of blood, body composition, muscle structure and endurance performance will be determined before and after the training intervention.
Once informed consent and health history have been obtained, after the baseline Assessment (t1), participants will divided into three similar profile groups, matched by body mass, age, sex and performance (Vo2max). 1) The Beef protein group (Beef n=12) that will take 20g of hydrolysates beef protein powder and 250 ml of water 2) The whey group (n=12) will take 20 g of whey intact isolate powder mixed with 250 ml of water 3) the contrast group (CHO n=12) that will take an iso-energetic non-protein, only carbohydrate (20 f of maltodextrin plus 250 ml of water) contrast.
Participants: Thirty six participants, recruited from Kent, Medway University Campus, will take part in the project. After being informed of all risk, discomforts, and benefits involved, participants will sign a written informed consent regarding their participation.
Intervention Familiarization period: Participants will undertake 1 sessions of familiarisation with the testing procedure. A qualified conditioning coach will control and assists participants in order to guarantee a correct understanding of the assessment procedure (Body composition, vo2max test, muscle thickness, etc). All participants will be instructed about the appropriate use of the Rate of Perceived Exertion (6-20) Borg scale and the heart rate monitor to control the load and training intensity during test and training.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 30 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •regularly trained endurance athletes,
- •aged 30 to 60 years old,
- •minimum 2 years of experience,
- •volunteers,
排除标准
- •any musculoskeletal injuries, metabolic conditions, or diseases;
- •use of medications, smoking, and nutritional supplements known to affect physical performance, muscle damage or recovery process (e.g., creatine, whey protein, and amino acids) within 6 weeks prior to the start of the study.
研究组 & 干预措施
Dietary Supplement: Beef Protein
All the groups will perform a similar endurance training involved 4 to 6 workout per week with a total percentage distribution of 75 to 80% at low intensity; 10% at moderate intensity, and 15 to 10% at high intensity. Training session will last from 45 min to a maximum of 120 min.
Intervention will last for 10 weeks. Participants will ingest 20g of beef protein powder mixed with 250ml of water at post workout (training days) or before breakfast (non training days).
干预措施: Dietary Supplement: Beef Protein (Dietary Supplement)
Dietary Supplement: Whey Protein
All the groups will perform a similar endurance training involved 4 to 6 workout per week with a total percentage distribution of 75 to 80% at low intensity; 10% at moderate intensity, and 15 to 10% at high intensity. Training session will last from 45 min to a maximum of 120 min.
Intervention will last for 10 weeks. Participants will ingest 20g of whey protein powder mixed with 250ml of water at post workout (training days) or before breakfast (non training days).
干预措施: Dietary Supplement: whey Protein (Dietary Supplement)
Dietary Supplement: CHO
All the groups will perform a similar endurance training involved 4 to 6 workout per week with a total percentage distribution of 75 to 80% at low intensity; 10% at moderate intensity, and 15 to 10% at high intensity. Training session will last from 45 min to a maximum of 120 min.
Intervention will last for 10 weeks. Participants will ingest 20g of maltodextrin powder mixed with 250ml of water at post workout (training days) or before breakfast (non training days).
干预措施: Dietary Supplement: CHO (Dietary Supplement)
结局指标
主要结局
Endurance Performance
时间窗: 10 Weeks
Ventilatory threshold 2
Blood Markers
时间窗: 10 weeks
haemoglobin
Body composition
时间窗: 10 Weeks
Fat mass
Muscular thickness
时间窗: 10 weeks
vastus medialis thickness
Body composition
时间窗: 10 weeks
Fat-Free mass
Endurance Performance
时间窗: 10 weeks
Vo2max
次要结局
- Immunology markers(10 weeks)
研究者
Fernando Naclerio
Principal Lecturer
University of Greenwich