Evidence map›Paper›PMID 34831529›Full record

Trial reportInternational journal of environmental research and public health2021

What Is the Optimal Strength Training Load to Improve Swimming Performance? A Randomized Trial of Male Competitive Swimmers.

Sofiene Amara, Emmet Crowley, Senda Sammoud, Yassine Negra, Raouf Hammami, Oussema Gaied Chortane, Riadh Khalifa, Sabri Gaied Chortane, Roland van den Tillaar

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.4field-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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Effect of High-Volume Training on Psychological State and Performance in Competitive Swimmers.International journal of environmental research and public health · 2022
    Trial
  4. Article
  5. Article
  6. The Aging Curve: How Age Affects Physical Performance in Elite Football.Journal of functional morphology and kinesiology · 2025
    Article
  7. Review
  8. Article
  9. Capillary Blood Recovery Variables in Young Swimmers: An Observational Case Study.International journal of environmental research and public health · 2022
    Observational
  10. 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

9 authors at 3 institutions in 3 countries.

Sofiene AmaraHigher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis 2010, Tunisia.
Emmet CrowleyBiomechanics Research Unit, Department of Physical Education and Sport Sciences, University of Limerick, V94 T9PX Limerick, Ireland.
Senda SammoudHigher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis 2010, Tunisia.
Yassine NegraHigher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis 2010, Tunisia.ORCID 0000-0001-8680-2490
Raouf HammamiHigher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis 2010, Tunisia.
Oussema Gaied ChortaneHigher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis 2010, Tunisia.ORCID 0000-0003-1184-6805
Riadh KhalifaHigher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis 2010, Tunisia.
Sabri Gaied ChortaneHigher Institute of Sport and Physical Education of Ksar-Said, University of La Manouba, Tunis 2010, Tunisia.
Roland van den TillaarDepartment of Sport Sciences and Physical Education, Nord University, 7600 Levanger, Norway.ORCID 0000-0002-4481-4490
Manouba University · TNNord University · NOUniversity of Limerick · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to compare the effectiveness of high, moderate, and low resistance training volume-load of maximum strength training on muscle strength and swimming performance in competitive swimmers. Thirty-three male swimmers were randomly allocated to high (age = 16.5 ± 0.30 years), moderate (age = 16.1 ± 0.32 years) and a low resistance training volume-load group (age = 15.9 ± 0.31). This study was carried out in mid-season (January to March). Pre and post strength (e.g., repetition maximum [1RM] leg extension and bench press tests), swimming (25, 50 m front-crawl), start (speed, time, distance) and turn (time of turn) performance tests were conducted. Our findings revealed a large main effect of time for 1RM bench press: d = 1.38; 1RM leg extension: d = 1.55, and for 25 (d = 1.12), and 50 m (d = 1.97) front-crawl, similarly for start and turn performance (d = 1.28-1.46). However, no significant Group × Time interactions were shown in all strength swimming performances, start and turn tests (

Indexed as

Athletic PerformanceResistance TrainingAdolescentExercise TherapyHumansMaleMuscle StrengthSwimming1RM bench press1RM leg extensionexternal training loadstartturn

Identifiers

PMID34831529
PMCPMC8620783
OpenAlexW3211933531

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.