Effects of Cyclic Variations in Altitude Conditioning (CVAC) on Wellness and Activity Measures
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Enrollment
- 28
- Primary Endpoint
- Plasma Glucose Concentration
Study Overview
Brief Summary
Cyclic Variation in Altitude Conditioning (CVAC) is a new technique that uses a pod-like device to expose users to controlled fluctuations in air pressure. It is designed to promote quicker altitude acclimatization, thus promoting improvements in exercise capacity at altitude and, possibly, at sea level. However, over the past few years, anecdotal stories from users of the device suggest that the CVAC treatments might be causing changes beyond the expected endurance exercise performance benefits. Therefore, the purpose of the study is to obtain data on some of the previous anecdotal claims regarding the device (e.g. increases in strength, improved glucose tolerance, reduction of neuropathic pain and decreased joint swelling) as well as to obtain broad questionnaire data in order to identify more specific variables to investigate in future studies.
Study Design
- Study Type
- Interventional
- Allocation
- Non Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Health Services Research
- Masking
- Single (Participant)
Eligibility Criteria
- Ages
- 40 Years to 70 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Healthy middle aged men at risk for metabolic syndrome
Exclusion Criteria
- •Uncontrolled hypertension,
- •sensitive ears,
- •anything that would preclude person from sustaining rapid pressure changes
Outcomes
Primary Outcomes
Plasma Glucose Concentration
Time Frame: Glucose measurements were made at baseline, 3, 6, & 10 weeks. Blood was collected consistently after a 10-12 h fast the morning after a CVAC session (except for baseline).
Secondary Outcomes
No secondary outcomes reported
Investigators
Anne Friedlander
Consulting Professor
Palo Alto Veterans Institute for Research