Cervical Changes by 4h of Hyper-buoyancy Flotation and Followed by 15 Mins 1g Re-loading
Cervical Intervertebral Disc Expansion, Vertebral Compliance Reduction and Neck Pain is Induced by 4h of Hyper-buoyancy Flotation That is Only Partially Reversed by 15 Mins 1g Re-loading
1 other identifier
observational
12
1 country
1
Brief Summary
Study with the aim to see the effect on a space ground anaologue, Hyperbuoyancy Floatation (HBF) on cervical column.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Mar 2020
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 13, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 25, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
February 10, 2022
CompletedFirst Submitted
Initial submission to the registry
February 23, 2022
CompletedFirst Posted
Study publicly available on registry
March 25, 2022
CompletedMarch 25, 2022
March 1, 2022
4 months
February 23, 2022
March 24, 2022
Conditions
Outcome Measures
Primary Outcomes (1)
Height
Standing stature measured by a commercial stadiometer (Seca 217, Germany)
up to 2 years
Secondary Outcomes (4)
Height of cervical Intervertebral Discs
up to 2 years
Longus Collis and Semispinalis Cervicis thickness and cross-sectional area.
up to 2 years
Vertebral Stiffness
up to 2 years
Self-reported neck pain
up to 2 years
Study Arms (1)
Observacional group
Subjects must remain to the exposure of gravity (1G) after 4h of hyperbuoyancy floatation(spine unloading)
Interventions
Subjects are laid supine upon a HBF waterbed encased within a wooden frame partially (50%) filled with water (at 36ºC to maintain thermal comfort) super-saturated with magnesium sulphate. Thus, subjects are buoyant, sinking passively into the bed in proportion to their segmental mass.
Eligibility Criteria
NASA astronaut criteria (1.57-1.90m, 50-95kg)
You may qualify if:
- physical requirements (1.57-1.90m, 50-95kg)
You may not qualify if:
- current back/neck pain, musculoskeletal disorder, cardiovascular disease, spine surgery and being, or suspected to be pregnant
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
CSEU-Lasalle
Madrid, 28029, Spain
Related Publications (4)
Green DA, Scott JPR. Spinal Health during Unloading and Reloading Associated with Spaceflight. Front Physiol. 2018 Jan 18;8:1126. doi: 10.3389/fphys.2017.01126. eCollection 2017.
PMID: 29403389BACKGROUNDMarshburn TH, Hadfield CA, Sargsyan AE, Garcia K, Ebert D, Dulchavsky SA. New heights in ultrasound: first report of spinal ultrasound from the international space station. J Emerg Med. 2014 Jan;46(1):61-70. doi: 10.1016/j.jemermed.2013.08.001. Epub 2013 Oct 15.
PMID: 24135505RESULTSwanenburg J, Langenfeld A, Easthope CA, Meier ML, Ullrich O, Schweinhardt P. Microgravity and Hypergravity Induced by Parabolic Flight Differently Affect Lumbar Spinal Stiffness. Front Physiol. 2020 Sep 2;11:562557. doi: 10.3389/fphys.2020.562557. eCollection 2020.
PMID: 32982803RESULTMcNamara KP, Greene KA, Tooze JA, Dang J, Khattab K, Lenchik L, Weaver AA. Neck Muscle Changes Following Long-Duration Spaceflight. Front Physiol. 2019 Sep 13;10:1115. doi: 10.3389/fphys.2019.01115. eCollection 2019.
PMID: 31572205RESULT
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Alfonso Gil Martinez, PhD
Centro Superior de Estudios Universitarios Lasalle
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigador
Study Record Dates
First Submitted
February 23, 2022
First Posted
March 25, 2022
Study Start
March 13, 2020
Primary Completion
July 25, 2020
Study Completion
February 10, 2022
Last Updated
March 25, 2022
Record last verified: 2022-03
Data Sharing
- IPD Sharing
- Will not share
Data is going to be shared between the investigators authors.