Evidence map›Paper›PMID 24203064›Full record

Observational studyThe Journal of clinical endocrinology and metabolism2014

Jump power and force have distinct associations with cortical bone parameters: findings from a population enriched by individuals with high bone mass.

Sarah A Hardcastle, Celia L Gregson, Jörn Rittweger, Nicola Crabtree, Kate Ward, Jon H Tobias

Abstract readObservational Study
In one paragraph

Observational study in The Journal of clinical endocrinology and metabolism, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Lean mass and lower limb muscle function in relation to hip strength, geometry and fracture risk indices in community-dwelling older women.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2019
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Reproducibility of jumping mechanography and traditional measures of physical and muscle function in older adults.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2015
    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

6 authors.

Sarah A HardcastleMusculoskeletal Research Unit (S.A.H., C.L.G., J.H.T.), School of Clinical Sciences, University of Bristol, Bristol BS10 5NB, United Kingdom; Institute of Aerospace Medicine (J.R.), German Aerospace Center, D-51147 Cologne, Germany; Institute for Biomedical Research into Human Movement and Health Research Institute (J.R.), Manchester Metropolitan University, Manchester M1 5GD, United Kingdom; Birmingham Children's Hospital (N.C.), Birmingham B4 6NH, United Kingdom; and Nutrition and Bone Health, Medical Research Council Human Nutrition Research, Cambridge CB1 9NL, United Kingdom.
Celia L Gregson
Jörn Rittweger
Nicola Crabtree
Kate Ward
Jon H Tobias

Funding

Arthritis Research UK 19580Arthritis Research UK 20000Medical Research Council MC_U105960371Medical Research Council U10590371Versus Arthritis 19580Wellcome Trust 080280/Z/06/Z
6 · The paper itself

Abstract

contextLittle is known of the relationships between muscle function and bone, based on the recently developed technique of jumping mechanography.

objectiveOur objective was to determine associations between peak ground reaction force and peak power during a 1-legged hopping test and a single 2-legged jump, respectively, and cortical bone parameters. DESIGN AND

settingThis was a cross-sectional observational study in participants from the high bone mass cohort.

participantsParticipants included 70 males (mean age 58 years) and 119 females (mean age 56 years); high bone mass cases and controls were pooled.

main outcome measuresTotal hip bone mineral density (BMD) (measured by dual-energy x-ray absorptiometry scanning) and mid-tibial peripheral quantitative computed tomography (Stratec XCT2000L).

resultsJump power was positively related to hip BMD (standardized β [95% confidence interval]=0.29 [0.07, 0.51], P=.01), but hopping force was not (0.03 [-0.16, 0.22], P=.74) (linear regression analysis adjusted for age, gender, height, and weight). In 113 participants with force and peripheral quantitative computed tomography data, both jump power and hopping force were positively associated with tibial strength strain index (0.26 [0.09, 0.44], P<.01; and 0.24 [0.07, 0.42], P=.01 respectively). Although hopping force was positively associated with bone size (total bone area 0.22 [0.03, 0.42], P=.02), jump power was not (0.10 [-0.10, 0.30], P=.33). In contrast, jump power was inversely associated with endocortical circumference adjusted for periosteal circumference (-0.24 [-0.40, -0.08], P<.01) whereas no association was seen for hopping force (-0.10 [-0.26, 0.07], P=.24).

conclusionsAlthough power and force are both positively associated with cortical bone strength, distinct mechanisms appear to be involved because power was primarily associated with reduced endocortical expansion (reflected by endocortical circumference adjusted for periosteal circumference, and hip BMD), whereas force was associated with increased periosteal expansion (reflected by total bone area).

Indexed as

Bone DensityCase-Control StudiesCross-Sectional StudiesExerciseFemaleHipHumansLegMaleMiddle AgedMuscle StrengthRadiographyTibia

Identifiers

PMID24203064
PMCPMC3952022

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.