Evidence map›Paper›PMID 28124728›Full record

ArticleOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2017

Jumping exercise preserves bone mineral density and mechanical properties in osteopenic ovariectomized rats even following established osteopenia.

R Okubo, L S Sanada, V A Castania, M J Q Louzada, F J A de Paula, N Maffulli, A C Shimano

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Article in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 20% of its field
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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. FK506 ameliorates osteoporosis caused by osteoblast apoptosis via suppressing the activated CaN/NFAT pathway during oxidative stress.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2021
    Article
  9. Article
  10. Article
  11. The Role of Irisin in Exercise-Mediated Bone Health.Frontiers in cell and developmental biology · 2021
    Review
  12. Review
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

7 authors at 4 institutions in 3 countries.

R OkuboDepartment of Physiotherapy, Santa Catarina State University, Florianópolis, Santa Catarina, Brazil. rodrigo.okubo@udesc.br.
L S SanadaDepartment of Physiotherapy, Santa Catarina State University, Florianópolis, Santa Catarina, Brazil.
V A CastaniaDepartment of Biomechanics, Medicine and Rehabilitation of Locomotor Apparatus, School of Medicine of Ribeirao Preto, University of Sao Paulo, 3900 Bandeirantes Avenue, Ribeirão Preto, São Paulo, Brazil.
M J Q LouzadaDepartment of Animal Support, Production and Health, School of Veterinary Medicine, Sao Paulo State University, Araçatuba, São Paulo, Brazil.
F J A de PaulaDepartment of Internal Medicine, School of Medicine of Ribeirao Preto, University of Sao Paulo, Sao Paulo, Brazil.
N MaffulliFaculty of Medicine and Surgery, Department of Musculoskeletal Disorders, University of Salerno, Salerno, Italy.
A C ShimanoDepartment of Biomechanics, Medicine and Rehabilitation of Locomotor Apparatus, School of Medicine of Ribeirao Preto, University of Sao Paulo, 3900 Bandeirantes Avenue, Ribeirão Preto, São Paulo, Brazil.
Universidade de São Paulo · BRUniversidade do Estado de Santa Catarina · BRMile End Hospital · GBUniversidade Estadual Paulista (Unesp) · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The effects of jump training on bone structure before and after ovariectomy-induced osteopenia in rats were investigated. Jumping exercise induced favorable changes in bone mineral density, bone mechanical properties, and bone formation/resorption markers. This exercise is effective to prevent bone loss after ovariectomy even when osteopenia is already established.

introductionThe present study investigated the effects of jump training on bone structure before and after ovariectomy-induced osteopenia in 80 10-week-old Wistar rats.

methodsForty rats (prevention program) were randomly allocated to one of four equal groups (n = 10): sham-operated sedentary (SHAM-SEDp), ovariectomized (OVX) sedentary (OVX-SEDp), sham-operated exercised (SHAM-EXp), and OVX exercised (OVX-EXp). SHAM-EXp and OVX-EXp animals began training 3 days after surgery. Another 40 rats (treatment program) were randomly allocated into another four groups (n = 10): sham-operated sedentary (SHAM-SEDt), OVX sedentary (OVX-SEDt), sham-operated exercised (SHAM-EXt), and OVX exercised (OVX-EXt). SHAM-EXt and OVX-EXt animals began training 60 days after surgery. The rats in the exercised groups jumped 20 times/day, 5 days/week, to a height of 40 cm for 12 weeks. At the end of the experimental period, serum osteocalcin, follicle-stimulating hormone (FSH) dosage, dual X-ray absorptiometry (DXA), histomorphometry, and biomechanical tests were analyzed.

resultsThe OVX groups showed higher values of FSH and body weight (p < 0.05). DXA showed that jump training significantly increased bone mineral density of the femur and fifth lumbar vertebra (p < 0.05). The stiffness of the left femur and fifth lumbar vertebra in the exercised groups was greater than that of the sedentary groups (p < 0.05). Ovariectomy induced significant difference in bone volume (BV/TV, percent), trabecular separation (Tb.Sp, micrometer), and trabecular number (Tb.N, per millimeter) (p < 0.05) compared to sham operation. Jump training in the OVX group induced significant differences in BV/TV, Tb.Sp, and Tb.N and decreased osteoblast number per bone perimeter (p < 0.05) compared with OVX nontraining, in the prevention groups. Osteocalcin dosage showed higher values in the exercised groups (p < 0.05).

conclusionsJumping exercise induced favorable changes in bone mineral density, bone mechanical properties, and bone formation/resorption markers. Jump training is effective to prevent bone loss after ovariectomy even when osteopenia is already established.

Indexed as

Absorptiometry, PhotonAnimalsBiomechanical PhenomenaBody WeightBone DensityBone Diseases, MetabolicBone RemodelingExercise TherapyFemaleFemurFollicle Stimulating HormoneLumbar VertebraeOvariectomyPhysical Conditioning, AnimalRandom AllocationRats, WistarFollicle Stimulating HormoneExercise therapyOsteopeniaOvariectomyRehabilitation medicine

Identifiers

PMID28124728
OpenAlexW2581535191

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

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.