Kids Rehydration During Exercise
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 21
- 试验地点
- 1
- 主要终点
- Net Fluid Balance based on body weight changes
研究概览
简要总结
The low fluid intake in combination with a high intake of sugar-sweetened beverages (SSB) by children is a significant concern among public health professionals. Therefore reformulation of existing commercially available beverages has been suggested as one of the strategies to change SSB beverage behaviors of children. It has been suggested that lack of flavor in plain water is one of the factors of low water intake in children. Therefore, the addition of a flavor to a low-carbohydrate beverage might increase and facilitate the voluntary fluid intake in children, and result in more effective rehydration during and after exercise. The present study aims to examine if a lower sugar flavored water will improve voluntary hydration in children that perform multiple exercise bouts within a period of 3 hours.
详细描述
Subject will enter a warm room with a temperature between 28-30°C (80-85°F). Then, subjects will undergo a 3-hour walk, cycle, and rest protocol. The exercise intensity is based on 70% of the subject's predicted heart rate using the formula: 220 beats per minute (bpm) - 10 years of age = 210 bpm, and 70% equals 147 bpm). This is an intensity in which the subject has an elevated breathing frequency but can still talk. During the 3-h period subject will complete the following one-hour test three times:
- 10 min walking on the treadmill at 70% of predicted max heart rate (~147 bpm)
- 5 min rest
- 10 min cycling on the cycle ergometer at 70% of predicted max heart rate (~147 bpm)
- 35 min rest
During the 3-h period, subjects will have free access to fluids Body weight and urine samples will be collected during the experiement
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Other
- 盲法
- Single (Participant)
盲法说明
non-identifiable bottles
入排标准
- 年龄范围
- 8 Years 至 10 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Girls and boys age 8 to 10 years
- •Willing to walk and cycle in a warm environment (80-85°F)
- •Body weight ≤85th percentile for their age group
排除标准
- •History of conditions known to alter body water balance (diabetes, renal disease, etc.)
- •Drugs that (may) influence hydration status (including Selective serotonin reuptake inhibitor (SSRI), ADHD medication, diuretics and corticoids)
- •Physical or mental disabilities that would prevent participation in moderate-intensity treadmill walking/jogging and cycling
- •Previous diagnosis of heat stroke
- •Body weight ≥86th percentile for their age group
研究组 & 干预措施
Low Carb drink
Roaring Water
干预措施: Rehydration Drink (Other)
Water
Plain Water
干预措施: Rehydration with plain water (Other)
结局指标
主要结局
Net Fluid Balance based on body weight changes
时间窗: 1, 2, and 3 hours of the protocol
Fluid intake during the 3 hour period
时间窗: 1, 2, and 3 hours of the protocol
ad-libitum fluid intake
次要结局
- Urine osmotic excretion(1, 2, and 3 hour)
- urine osmolality(1, 2, and 3 hour)
- Urine output(1, 2 and 3 hour of the protocol)