Erythrocytes and Skeletal-muscle Unsaturated and Omega-6 Fatty Acids Are Positively Correlated After Caloric Restriction and Exercise
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 11
- 试验地点
- 2
- 主要终点
- Changes in erythrocytes FAs profiles in adult healthy human after caloric restriction and acute exercise
研究概览
简要总结
The aim is compare and correlate skeletal muscle and erythrocytes fatty acids (FAs) profiles in adult healthy human after caloric restriction and acute exercise in order to validate erythrocyte FAs profile as marker of changes in muscle fatty acid composition.
详细描述
The study was performed with 11 healthy sportsmen participating in a caloric restriction trial for 1 month. The participants follow a caloric restriction, 30-40% respect to the usual diet of each participant, three alternate days weekly along 4 weeks. After the caloric restriction period the participants realized an exercise stress test. For each participant one blood sample and muscular biopsy were obtained after acute exercise and caloric restriction intervention. All the participants were informed of the purpose and demands of the study before giving their written consent to participate. The study protocol was in accordance with the Declaration of Helsinki for research on human participants and was approved by the local Ethics Committee of the Consell Català de l'Esport.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •age (18-50 years old),
- •sex (male),
- •equilibrate diet and physical activity of 3 days weekly.
排除标准
- •sex (female),
结局指标
主要结局
Changes in erythrocytes FAs profiles in adult healthy human after caloric restriction and acute exercise
时间窗: 8 weeks
Venous blood samples were obtained from the antecubital vein of participants with vacutainers containing EDTA (ethylenediaminetetraacetic acid) as anticoagulant (6 mL) to purify erythrocytes following an adaptation of the method described elsewhere (Boyum, 1964; Sureda et al., 2006). Erythrocyte fraction was obtained after centrifugation (900 x g, 30 min, 4ºC). Then, erythrocytes were cleaned with phosphate buffered saline (PBS), centrifuged (900 x g, 20 min, 4ºC) and lysed with water at initial blood volume. Cell lysates were stored at -80ºC until FA analyses. FA composition of erythrocytes were determined by gas chromatography.
Changes in skeletal muscle FAs profiles in adult healthy human after caloric restriction and acute exercise
时间窗: 8 weeks
Muscular biopsy was obtained from vastus lateralis of the quadricipitalis muscle. The dermis was cut for to display muscular aponeurosis (\<2.5 cm) after clean and sterilize the biopsy zone. Next the aponeurosis was cut and a puncture with Vacora® device (Bard Biopsy Systems, Tempe, AZ, USA) was realized. The injury was cleaned and sutured, and the muscular sample was stored at -80ºC until FA analyses..FA composition of skeletal muscle were determined by gas chromatography.
次要结局
- Exercise stress test energy efficiency(8 weeks)
- Densitometry(8 weeks)
研究者
FRANCISCO DROBNIC, MD, PhD
PhD in Medicine
Centre d'Alt Rendiment