Evidence map›Paper›PMID 27905858›Full record

ArticleJournal of athletic training2017

Seasonal Effects on Body Composition, Muscle Characteristics, and Performance of Collegiate Swimmers and Divers.

Erica J Roelofs, Abbie E Smith-Ryan, Eric T Trexler, Katie R Hirsch

Registry-linked trialAbstract read
In one paragraph

Article in Journal of athletic training, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07548515 (Understanding the Relationship of Body Composition and Metabolism in Adult and Older Filipino Endurance and Strength Athletes in the Philippines), which is not on this map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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.

NCT07548515 not yet recruitingnot on this mapstarted 2026, after this paper: background citation

Understanding the Relationship of Body Composition and Metabolism in Adult and Older Filipino Endurance and Strength Athletes in the Philippines (NPOWER P1)

Typeobservational_patient_registrySponsorFood and Nutrition Research Institute, PhilippinesRan2026 to 2027Enrolled120ConditionsNutrition Physiology, Athletes, The Focus of This Study is to Describe the Body Composition and Metabolism of Athletes and Non-athletes
3 · Its place in the literature

Who cites it

18 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Changes in Body Composition and Motor Fitness of Young Female Volleyball Players in an Annual Training Cycle.International journal of environmental research and public health · 2023
    Article
  9. Article
  10. Strength Training in Swimming.International journal of environmental research and public health · 2022
    Review
  11. Body Composition Changes in College Athletes During Holiday Breaks.International journal of sports and exercise medicine · 2022
    Article
  12. Body Composition Changes in College Athletes during the COVID-19 Lockdown.International journal of sports and exercise medicine · 2022
    Article
  13. Body Composition Changes in College Basketball Players Over Summer Training.International journal of sports and exercise medicine · 2022
    Article
  14. New Frontiers of Body Composition in Sport.International journal of sports medicine · 2021
    Article
  15. Article
  16. Article
  17. Body Composition in International Sprint Swimmers: Are There Any Relations with Performance?International journal of environmental research and public health · 2020
    Article
  18. 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

4 authors.

Erica J RoelofsApplied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina at Chapel Hill.
Abbie E Smith-RyanApplied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina at Chapel Hill.
Eric T TrexlerApplied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina at Chapel Hill.
Katie R HirschApplied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina at Chapel Hill.

Funding

North Carolina Translational & Clinical Sciences Institute (NC TraCS)KL2TR001109 · NCATS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BUSE, JOHN BERNARD, CAREY, TIMOTHY S · 2013 to 2017
$5.7M
NCATS NIH HHS KL2 TR001109
6 · The paper itself

Abstract

contextPrevious researchers have indicated the importance of body composition and muscle quality in athletic performance. However, body composition and muscle-quality measures in swimmers and divers over a training season have yet to be evaluated.

objectiveTo identify changes in body composition and muscle characteristics over a competitive season and identify relationships between these variables and performance in National Collegiate Athletic Association Division I swimmers and divers.

designCross-sectional study.

settingUniversity laboratory. PATIENTS OR OTHER

participantsA total of 17 collegiate swimmers and divers (age = 18.6 ± 0.7 years, height = 175.8 ± 4.0 cm, body mass = 69.7 ± 7.0 kg). MAIN OUTCOME MEASURE(S): At preseason and postseason, body composition in each participant was assessed using dual-energy x-ray absorptiometry. Echo intensity and muscle cross-sectional area were determined from an ultrasound panoramic scan of the vastus lateralis muscle. Race times were obtained from the university athletic Web site.

resultsLean mass (P = .016), arm lean mass (P = .008), and muscle cross-sectional area (P = .03) were higher at postseason, whereas body fat percentage (P = .041) and echo intensity (P = .0007) were lower at postseason. Performance improved from preseason to postseason in all event groups (sprinters, distance swimmers, and divers; P < .05).

conclusionsBody composition and muscle characteristics improved through 1 training season, which may have implications for performance. Quantifying body composition and muscle characteristics may be beneficial for professionals who work with athletes in order to improve performance and prevent injury.

Indexed as

SeasonsAbsorptiometry, PhotonAthletesAthletic PerformanceBody CompositionCross-Sectional StudiesDivingFemaleHumansMaleMuscle, SkeletalMuscle StrengthQuadriceps MuscleSwimmingUltrasonographyUniversitiesathletesdual-energy x-ray absorptiometryecho intensityultrasound

Identifiers

PMID27905858
PMCPMC5293516

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.