The Influence of Chlorella Supplementation on Running Performance
试验速览
- 阶段
- 不适用
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Changes in oxygen consumption and oxygen cost
研究概览
简要总结
Algae, such as chlorella, are gaining popularity as a nutritious additive to whole food or as a supplement. They contain a variety of beneficial nutrients like vitamins, minerals, healthy fats, and amino acids, which can have positive effects on our health and possibly athletic performance. Chlorella, specifically, is a type of single-celled green algae that you can easily find in health stores worldwide. While there's some evidence suggesting that chlorella supplementation might improve submaximal and maximal performance for cyclists, it's unclear if it has the same impact on runners. To investigate this, the investigators aim to conduct a double-blind randomised placebo controlled study to see if taking chlorella daily for 3-weeks can enhance different aspects of running performance, both during low/moderate and intense exercise, among individuals who regularly engage in running.
详细描述
After signing the consent form, we will invite you to come to the ISEH laboratory on Tottenham Court Road so we can take some basic baseline readings. This should last up to 60 minutes and will also include a V̇o2max Test (visit 1). After this, you will be randomly allocated either start on chlorella or placebo first. After supplementation (for visit 2 and 3) you will be required to perform a submaximal running test which will entail running at 60% GET (gas exchange threshold), 80% GET, and 75% of the change from peak. This will then be shortly followed by an incremental test to fatigue.
You will then be required to undergo the exact same supplementation period on the alternative supplement with the same exercise test performed.
You will be required to come into the laboratory a total of 3 times. Each visit should take roughly 1 - 1.5 hours.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Run regularly (3-4 times a week).
- •Train with a purpose to compete.
- •Consider running to be your main sport.
- •Be comfortable running continuously for over 30-minutes at moderate intensity.
- •Represent a local running club.
排除标准
- •Individuals taking blood thinners.
- •Known allergies to algae/mould and iodine.
- •Any illness/conditions identified on PARQ (please see attached PARQ)
- •Taking immunosuppressant medication
研究组 & 干预措施
Chlorella supplementation
Supplementation of chlorella (6g/day for 3-weeks)
干预措施: Chlorella supplementation (Dietary Supplement)
Placebo supplementation
Supplementation of placebo (6g/day for 3-weeks)
干预措施: Placebo supplementation (Dietary Supplement)
结局指标
主要结局
Changes in oxygen consumption and oxygen cost
时间窗: Following each 3-week supplementation period of either chlorella or placebo
Assessing the possible changes in oxygen consumption and oxygen cost (ml/kg/min) at 60% Gas Exchange threshold (GET), 80% GET, and 75% change as measured by a metabolic cart (Vyntus)
Changes in lactate
时间窗: Following each 3-week supplementation period of either chlorella or placebo
Assessing the possible changes in blood lactate at 60% Gas Exchange threshold (GET), 80% GET, and 75% change, at maximal oxygen uptake, and 15-mins post maximal as measured by the Biosen.
Changes in the respiratory exchange ratio
时间窗: Following each 3-week supplementation period of either chlorella or placebo
Assessing the possible changes in the respiratory exchange ratio at 60% Gas Exchange threshold (GET), 80% GET, and 75% change as measured by a metabolic cart (Vyntus)
Changes in glucose
时间窗: Following each 3-week supplementation period of either chlorella or placebo
Assessing the possible changes in blood glucose at 60% Gas Exchange threshold (GET), 80% GET, and 75% change, at maximal oxygen uptake, and 15-mins post maximal as measured by the Biosen.
Changes in maximal oxygen uptake
时间窗: Following each 3-week supplementation period of either chlorella or placebo
Changes in cardiovascular fitness variables as measured by a Cardio Pulmonary Exercise Test following the submaximal run.
Changes in heart rate
时间窗: Following each 3-week supplementation period of either chlorella or placebo
Assessing the possible changes in heart rate (bpm) at 60% Gas Exchange threshold (GET), 80% GET, and 75% change as measured by a metabolic cart (Vyntus)
次要结局
- Changes in nutritional status(Following each 3-week supplementation period of either chlorella or placebo)