Measuring Ability of Volunteers to Power a Bicycle-powered Oxygen Concentrator

2016-09-21 20:23:22 | BioPortfolio


We would like to test how well human volunteers power a modified oxygen concentrator. We modified the oxygen concentrator to be powered by a bicycle instead of wall power so that it can be used in low resource countries where the power supply is unreliable.


We would like to test how many people can power the oxygen concentrator by pedaling the bike for at least 30 minutes. If the volunteers can bike for at least 30 minutes, we assume they are pedaling at or below their lactate threshold. We have literature values which suggest bigger people should be able to output more work, and we wish to use a sample of the population to verify that most of the people can power our system. We have a good estimate of the power required by our system, and we want to verify the average person can actually do what we calculated is necessary.

Study Design

Observational Model: Cohort, Time Perspective: Prospective


Physical Exertion


Volunteer to pedal a bicycle


University of Utah
Salt Lake City
United States




University of Utah

Results (where available)

View Results


Published on BioPortfolio: 2016-09-21T20:23:22-0400

Clinical Trials [650 Associated Clinical Trials listed on BioPortfolio]

Spinal Cord Plasticity

This study will examine the role of the spinal cord in improving leg movements after physical training in healthy people. The results of this study may be helpful in developing new rehabil...

Optimizing Prosthetic and Bicycle Fit for Veterans With Transtibial Amputations

Bicycling is a promising form of low-impact exercise that could prevent/treat Type 2 diabetes. However, Veterans with transtibial amputations (TTAs) may not effectively utilize bicycling f...

Intelligent Electric Bicycle for Health (VELIS) to Optimize the Return to Physical Activity for Oncology Patients

The purpose of this pilot study is to encourage oncology patients to continue effort retraining after their release from rehabilitation and recuperative care facilities with physical activ...

Bikes For Life: Measuring the Effects of a Bicycle Distribution Program on Pediatric Obesity

The investigators propose a study to evaluate the success of a bicycle distribution program in increasing physical activity level, decreasing sedentary activity levels and positively affec...

Rapid Cadence Cycling for Parkinson's Disease: A Study of Implementation and Efficacy in the Community Setting

Forced cadence cycling (FCC) in which individuals with Parkinson's Disease (PD) pedal with external augmentation at 80-90 revolutions per minute (rpm) has demonstrated significant motor im...

PubMed Articles [6337 Associated PubMed Articles listed on BioPortfolio]

Flow Controlled Expiration does not impair pedal power during physical exercise on a bicycle ergometer.

Flow Controlled Expiration (FLEX) has been demonstrated to be lungprotective in models of ARDS during controlled mechanical ventilation. However, modern ventilation strategies in critical care include...

Relationship between Circadian Variation in Ictus of Aneurysmal Subarachnoid Hemorrhage and Physical Activity.

The circadian pattern of the onset time of aneurysmal subarachnoid hemorrhage (aSAH) has been reported by various authors. However, the effect of the degree of physical exertion on the circadian patte...

Effects of Prior Cognitive Exertion on Physical Performance: A Systematic Review and Meta-analysis.

An emerging body of the literature in the past two decades has generally shown that prior cognitive exertion is associated with a subsequent decline in physical performance. Two parallel, but overlapp...

The effect of training for a participatory ergonomic intervention on physical exertion and musculoskeletal pain among childcare workers (the TOY project) - a wait-list cluster-randomized controlled trial.

Objective Many employees have high physical exertion at work and suffer from musculoskeletal pain (MSP) leading to sickness absence with large costs. Participatory ergonomics is a potentially effectiv...

Feasibility study of a safe sled environment for reclined frontal deceleration tests with human volunteers.

The goal of the study was to assess the feasibility of a safe crash environment for volunteer tests in reclined seating positions. An iterative multimodal approach was chosen, consisting of full-body ...

Medical and Biotech [MESH] Definitions

The use of a bicycle for transportation or recreation. It does not include the use of a bicycle in studying the body's response to physical exertion (BICYCLE ERGOMETRY TEST see EXERCISE TEST).

Expenditure of energy during physical activities. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included.

Any method of measuring the amount of work done by an organism, usually during PHYSICAL EXERTION. Ergometry also includes measures of power. Some instruments used in these determinations include the hand crank and the bicycle ergometer.

Physical activity which is usually regular and done with the intention of improving or maintaining PHYSICAL FITNESS or HEALTH. Contrast with PHYSICAL EXERTION which is concerned largely with the physiologic and metabolic response to energy expenditure.

The state of weariness following a period of exertion, mental or physical, characterized by a decreased capacity for work and reduced efficiency to respond to stimuli.

More From BioPortfolio on "Measuring Ability of Volunteers to Power a Bicycle-powered Oxygen Concentrator"

Quick Search

Searches Linking to this Trial