Evidence map›Paper›PMID 35773442›Full record

ArticleScientific reports2022

Incomplete recovery of bone strength and trabecular microarchitecture at the distal tibia 1 year after return from long duration spaceflight.

Leigh Gabel, Anna-Maria Liphardt, Paul A Hulme, Martina Heer, Sara R Zwart, Jean D Sibonga, Scott M Smith, Steven K Boyd

Abstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed.

  1. Trial
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  6. Use of DXA-based software to identify astronauts at risk for persisting spaceflight-induced bone loss.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Bone Health in Space Flight: Incomplete Bone Mineral Density Convalescence at 1 Year Postmission Without Increased Fracture Risk.Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2025
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Resistance and Aerobic Preconditioning Delays Unloading-Induced Multisystemic Physiological Changes: The NEBULA Project.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  18. Article
  19. The autonomic nervous system and bone health in chronic kidney disease.European journal of clinical investigation · 2025
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Leigh GabelHuman Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Canada.
Anna-Maria LiphardtDepartment of Internal Medicine, Rheumatology and Immunology, German Centre for Immune Therapy, Friedrich-Alexander-Universität Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany.
Paul A HulmeMcCaig Institute for Bone and Joint Health, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada.
Martina HeerIU International University of Applied Sciences Erfurt and Department of Nutrition and Food Science, Nutritional Physiology, University of Bonn, Bonn, Germany.
Sara R ZwartDepartment of Preventive Medicine and Population Health, University of Texas Medical Branch, Galveston, TX, USA.
Jean D SibongaHuman Heath and Performance Directorate, NASA Lyndon B. Johnson Space Center, Houston, USA.
Scott M SmithHuman Heath and Performance Directorate, NASA Lyndon B. Johnson Space Center, Houston, USA.
Steven K BoydMcCaig Institute for Bone and Joint Health, University of Calgary, 3280 Hospital Drive NW, Calgary, AB, T2N 4Z6, Canada. skboyd@ucalgary.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Determining the extent of bone recovery after prolonged spaceflight is important for understanding risks to astronaut long-term skeletal health. We examined bone strength, density, and microarchitecture in seventeen astronauts (14 males; mean 47 years) using high-resolution peripheral quantitative computed tomography (HR-pQCT; 61 μm). We imaged the tibia and radius before spaceflight, at return to Earth, and after 6- and 12-months recovery and assessed biomarkers of bone turnover and exercise. Twelve months after flight, group median tibia bone strength (F.Load), total, cortical, and trabecular bone mineral density (BMD), trabecular bone volume fraction and thickness remained - 0.9% to - 2.1% reduced compared with pre-flight (p ≤ 0.001). Astronauts on longer missions (> 6-months) had poorer bone recovery. For example, F.Load recovered by 12-months post-flight in astronauts on shorter (< 6-months; - 0.4% median deficit) but not longer (- 3.9%) missions. Similar disparities were noted for total, trabecular, and cortical BMD. Altogether, nine of 17 astronauts did not fully recover tibia total BMD after 12-months. Astronauts with incomplete recovery had higher biomarkers of bone turnover compared with astronauts whose bone recovered. Study findings suggest incomplete recovery of bone strength, density, and trabecular microarchitecture at the weight-bearing tibia, commensurate with a decade or more of terrestrial age-related bone loss.

Indexed as

Space FlightTibiaAbsorptiometry, PhotonBiomarkersBone and BonesBone DensityHumansMaleBiomarkers

Identifiers

PMID35773442
PMCPMC9247070

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Registered trials

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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.