Evidence map›Paper›PMID 16388054›Full record

Trial reportJournal of the Royal Society of Medicine2006

Do shock absorbing insoles in recruits undertaking high levels of physical activity reduce lower limb injury? A randomized controlled trial.

Richard Withnall, Joanne Eastaugh, Nick Freemantle

Abstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Journal of the Royal Society of Medicine, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 4 pooled it
–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

15 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Interventions for preventing lower limb soft-tissue running injuries.The Cochrane database of systematic reviews · 2011
    Pooled it
  4. Interventions for preventing hamstring injuries.The Cochrane database of systematic reviews · 2010
    Pooled it
  5. Trial
  6. Article
  7. Article
  8. Barriers and facilitators to implementation of musculoskeletal injury mitigation programmes for military service members around the world: a scoping review.Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention · 2023
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Firm insoles effectively reduce hemolysis in runners during long distance running - a comparative study.Sports medicine, arthroscopy, rehabilitation, therapy & technology : SMARTT · 2011
    Article
  14. Does shoe insole modification prevent stress fractures? A systematic review.HSS journal : the musculoskeletal journal of Hospital for Special Surgery · 2009
    Article
  15. Learning to love big brother.British journal of sports medicine · 2006
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Richard WithnallRegional Medical Centre & Regional Rehabilitation Unit, RAF Halton, Aylesbury, Bucks HP22 5PG, UK. richwithnall@doctors.org.uk
Joanne Eastaugh
Nick Freemantle

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo assess the benefits, if any, of the use of shock absorbing insoles in reducing lower limb injury among Air Force recruits, and to assess the differences, if any, in the efficacy of two commonly available shock absorbing insoles.

designRandomized controlled trial.

settingRAF Halton, UK. Site of all basic training for RAF personnel.

participants1205 recruits participating in basic training between 17 September 2003 and 7 April 2004.

interventionsParticipants were randomized to receive either standard issue Saran non-shock absorbing insoles, or shock absorbing Sorbothane or Poron insoles, on a 1:1:1 basis.

main outcome measuresThe primary outcome measure was withdrawal from training for lower limb injury. The two primary comparisons were shock absorbing insole versus non-shock absorbing insole, and Sorbothane versus Poron (comparison of different shock absorbing insoles). Secondary outcomes were medical withdrawals for reasons other than those qualifying for the primary outcome measure.

resultsWhen comparing the non-shock absorbing insole to the shock absorbing insoles 72/401 participants (18.0%) allocated to Saran insoles were removed from training because of a qualifying lower limb injury, compared with 149/804 (18.5%) allocated to the shock absorbing insole (Sorbothane or Poron), odds ratio 1.04 (95% CI 0.75 to 1.44; P=0.87). When comparing the two shock absorbing insole 73/421 participants (17.3%) randomized to Sorbothane were removed from training because of a qualifying lower limb injury, compared with 76/383 for Poron (19.8%), odds ratio 0.85 (95% CI 0.58 to 1.23; P=0.37).

conclusionsSimilar rates of lower limb injuries were observed for all insoles (shock absorbing and non-shock absorbing) in the trial. The trial provides no support for a change in policy to the use of shock absorbing insoles for military recruits.

Indexed as

Military PersonnelOrthotic DevicesPolyurethanesShoesAdolescentAdultAthletic InjuriesExerciseFollow-Up StudiesHumansLeg InjuriesPressurePrognosisProtective DevicesPolyurethanessorbothane

Identifiers

PMID16388054
PMCPMC1325079

What OpenQuestion holds

Textmetadata
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.