ArticleFrontiers in physiology2020
Microgravity and Hypergravity Induced by Parabolic Flight Differently Affect Lumbar Spinal Stiffness.
Article in Frontiers in physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 12 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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
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
Who cites it
12 citing papers in PubMed, 15 citations in OpenAlex.
- Hyper-buoyancy flotation increases cervical disc height and reduces vertebral stiffness, with only partial reversal after acute 1 g axial loading.Experimental physiology · 2026Article
- 50% body weight loading reduces stature increases and lumbar disc expansion from 4 h hyper-buoyancy floatation versus 15 min sitting upright.Experimental physiology · 2026Article
- The effect of spaceflight on tissues of the spinal column.Bone reports · 2026Review
- Effect of hypergravity on the biomechanics of the musculoskeletal system in human lumbar spine: a numerical study.Frontiers in bioengineering and biotechnology · 2026Article
- Perceptual and sensorimotor adaptations to hypogravity: implications for manual task performance and verticality perception.Frontiers in psychology · 2026Article
- Adaptation of thoracic and lumbar curvature and spinal muscle activity under changing gravity.Frontiers in physiology · 2025Article
- Impact of BMI, osteoporosis, and disc degeneration on post-UBE lumbar stability: a finite element analysis of nonlinear synergistic effects.Frontiers in bioengineering and biotechnology · 2025Article
- Lunar and mars gravity induce similar changes in spinal motor control as microgravity.Frontiers in physiology · 2023Article
- Effect of trunk exercise upon lumbar IVD height and vertebral compliance when performed supine with 1 g at the CoM compared to upright in 1 g.BMC sports science, medicine & rehabilitation · 2022Article
- An Empirical and Subjective Model of Upper Extremity Fatigue Under Hypogravity.Frontiers in physiology · 2022Article
- In vivo measurements of spinal stiffness according to a stepwise increase of axial load.European journal of applied physiology · 2021Article
- Influence of Axial Load and a 45-Degree Flexion Head Position on Cervical Spinal Stiffness in Healthy Young Adults.Frontiers in physiology · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The objective of this study was to determine the response of the lumbar spinal motor control in different gravitational conditions. This was accomplished by measuring indicators of lumbar motor control, specifically lumbar spinal stiffness, activity of lumbar extensor and flexor muscles and lumbar curvature, in hypergravity and microgravity during parabolic flights. Three female and five male subjects participated in this study. The mean age was 35.5 years (standard deviation: 8.5 years). Spinal stiffness of the L3 vertebra was measured using impulse response; activity of the erector spinae, multifidi, transversus abdominis, and psoas muscles was recorded using surface electromyography; and lumbar curvature was measured using distance sensors mounted on the back-plate of a full-body harness. An effect of gravity condition on spinal stiffness, activity of all muscles assessed and lumbar curvature (
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.