Backpack Weight Impacts on Perceived Exertion and Heart Rate Variability
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- The Borg Rating of Perceived Exertion During the Total Hike
研究概览
简要总结
Backpacking is an increasingly popular outdoor recreational activity. The base pack weight (BPW) includes gear that is not consumed or worn on the body: shelter, sleep system, weather-proofing layers and personal gear to ensure a degree of comfort and safety. As such, reducing BPW is one of the most important tasks a backpacker manages when preparing for a trip. Available recommendations for ideal BPW are currently inconsistent, lack clear parameters, and rely on anecdotal evidence. The study aims to collect field data on perceived exertion and heart rate (HR) in relation to BPW during a day-long interval of hiking. Such findings can have implications on the cost and safety profiles extending from recreational backpacking to military and wilderness rescue operations.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Supportive Care
- 盲法
- Double (Participant, Care Provider)
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Only adult (age 18-65)
- •Have gone on at least two overnight backpacking trips in the past 5 years
- •Have hiked at least 8 miles in a day on one of those trips
排除标准
- •Lower extremity injuries or surgeries in the past 6-months
- •Daily Smokers
- •Chronic medical problems:
- •Hypertension
- •High cholesterol
- •Heart attack
- •Heart surgery, cardiac catheterization, or coronary angioplasty
- •Pacemaker/implantable cardiac defibrillator/rhythm disturbance
- •Heart valve disease
- •Heart failure
- •Heart transplantation
- •Congenital heart disease
- •Kidney disease
- •Back pain
研究组 & 干预措施
The Borg Rating of Perceived Exertion between 17 and 19 lb BPW
Participants will be randomized to both 17 and 19 pounds for the first hike and the alternate condition for the second hike. A random number generator will create 1 block that includes 10 participants in each block to ensure comparable numbers to subjects starting at different base backpack weight. Participants assignments will then be included in a sealed manila envelopes.
干预措施: The Borg Rating of Perceived Exertion (Behavioral)
The Borg Rating of Perceived Exertion between 19 and 17 lb BPW
Participants will be randomized to both 19 or 17 pounds for the first hike and the alternate condition for the second hike. A random number generator will create 1 block that includes 10 participants in each block to ensure comparable numbers to subjects starting at different base backpack weight. Participants assignments will then be included in a sealed manila envelopes.
干预措施: The Borg Rating of Perceived Exertion (Behavioral)
结局指标
主要结局
The Borg Rating of Perceived Exertion During the Total Hike
时间窗: 2 weeks
Participants will report their perceived exertion towards the end of both hikes. The Borg Rating of Perceived Exertion scale ranges from 6 to 20. 6 being the lowest score of no exertion and 20 being the highest of maximal exertion.
次要结局
- Heart Rate(2 weeks)
- The Borg Rating of Perceived Exertion During Incline and Decline Sections of the participant(2 weeks)