NCT05590754

50% Body Weight Reverses Stature, Lumbar Disc Expansion and Vertebral Compliance by Hyper-Buoyancy Floatation.

Acute 50% Body Weight Static Axial Loading Reverses Stature Increases, Lumbar Disc Expansion and Vertebral Compliance Modulation Induced by 4 Hours of Hyper-buoyancy Floatation

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 16 (actual)
• Sponsor: Universidad Autonoma de Madrid · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Accepted

Summary

Study with the aim to see the effect on a space ground analogue , Hyper-Buoyancy Floatation (HBF) on lumbar column and the effect of a supplementary 50% of an axial load.

Detailed description

the aim of this study was to determine the effect of 15min of 1g reloading following 4h HBF unloading with, and without 30s of seated static 50% BW axial loading upon stature, lumbar Intervertebral Disc height (via ultrasound), vertebral compliance changes, and back pain.

Conditions

• Intervertebral Disc Compression
• Muscle Atrophy
• Spine Injury

Interventions

Type	Name	Description
DEVICE	Hyper-buoyancy Floatation (HBF)	Participants remained on a waterbed encased within a wooden frame partially (≈50%) filled with water super-saturated with magnesium sulphate at a temperature between 34-36°C regulated by an ultra-thin underbed heater. Participants remained supine and motionless when lay on the HBF except for temporary passive re-orientation to/and back from the prone position for vertebral compliance assessment
DEVICE	Axial Load after 4h of HBF	Participants from observational sat upright in a chair without back support for 15 min before post testing (1G), whilst experimental group participants performed a 30s seated squat with 50% of their body weight (BW) before returning to the upright seated position.

Timeline

• Start date: 2018-06-12
• Primary completion: 2018-07-01
• Completion: 2022-03-01
• First posted: 2022-10-21
• Last updated: 2022-12-06

Locations

2 sites across 2 countries: Spain, United Kingdom