The Impact of Dietary Protein Supplementation and Age on Muscle Mass Loss During Short Term One-legged Knee Immobilization
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 35
- 试验地点
- 1
- 主要终点
- Change in muscle mass
研究概览
简要总结
In the present study, the effects of 5 days of lower limb immobilization with or without twice-daily protein supplementation on muscle mass and muscle fiber characteristics will be determined. A young group will be included to compare the changes in muscle mass and muscle fiber characteristics between young and old men.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 75 Years（Adult, Older Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Aged from 18-35 years and from 65-75 years
- •18.5 < BMI < 30 kg/m2
排除标准
- •Performing regular resistance training in the previous 6 months
- •Hypertension (according to WHO criteria) [52] and/or cardiovascular disease
- •Any back/leg/knee/shoulder complaints which may interfere with the use of crutches
- •Systemic use of antibiotics within 3 weeks prior to the study visit
- •Current systemic use of corticosteroids, growth hormone, testosterone, immunosuppressants or insulin
- •Type 2 diabetes mellitus
- •Any history of thrombosis
- •Any family history (1st grade) of thrombosis
- •All co-morbidities interacting with mobility and muscle metabolism of the lower limbs (e.g. arthritis, spasticity/rigidity, all neurological disorders and paralysis).
- •Myocardial infarction within the last 3 years
- •Use of anti-coagulants
- •Any (history of) gastrointestinal disease that interferes with GI function
- •Indications related to interaction with the study product:
- •Known allergy to milk or milk products
- •Known galactosemia
研究组 & 干预措施
Immobilization with protein (elderly)
Immobilization with twice-daily protein supplementation - in the elderly
干预措施: Immobilization (Behavioral)
Immobilization without protein (elderly)
Immobilization without twice-daily protein supplementation - in the elderly
干预措施: Immobilization (Behavioral)
Immobilization without protein (young)
Immobilization without twice-daily protein supplementation - in the young
干预措施: Immobilization (Behavioral)
结局指标
主要结局
Change in muscle mass
时间窗: three days before immobilization, and directly after immobilization (day of cast removal; day 6)
Change in muscle fiber size
时间窗: three days before immobilization, and directly after immobilization (day of cast removal; day 6)
次要结局
- Change in muscle strength measured by quadriceps 1-Repetition Maximum by Leg Extension(Three days before immobilization, and directly after immobilization (day of cast removal; day 6))
研究者
Lex Verdijk
Assistant Professor
Maastricht University Medical Center