ArticleMedical journal of the Islamic Republic of Iran2013
Effects of probiotic yogurt on performance, respiratory and digestive systems of young adult female endurance swimmers: a randomized controlled trial.
Article in Medical journal of the Islamic Republic of Iran, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 3 of them syntheses that pooled 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.
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.
Who cites it
34 citing papers in PubMed, 3 syntheses or guidelines pooled it, 45 citations in OpenAlex.
- Effect of probiotic intake on athletic ability in healthy people: a systematic review and Bayesian meta-analysis.Frontiers in nutrition · 2026Pooled it
- Health Benefits of Probiotics in Sport and Exercise - Non-existent or a Matter of Heterogeneity? A Systematic Review.Frontiers in nutrition · 2022Pooled it
- Impact of Probiotics on the Performance of Endurance Athletes: A Systematic Review.International journal of environmental research and public health · 2021Pooled it
- Synergistic Effects of Probiotic and Omega-3 Supplementation with Ultra-Short Race Pace Training on Sprint Swimming Performance.Nutrients · 2025Trial
- The effect of probiotics and casein supplementation on aerobic capacity parameters of male soccer players.Journal of the International Society of Sports Nutrition · 2024Trial
- Eight Weeks ofNutrients · 2023Trial
- Comparison of the Effects of Prebiotics and Synbiotics Supplementation on the Immune Function of Male University Football Players.Nutrients · 2023Trial
- Does Multi-Strain Probiotic Supplementation Impact the Effort Capacity of Competitive Road Cyclists?International journal of environmental research and public health · 2022Trial
- The effect of Bacillus coagulans Unique IS-2 supplementation on plasma amino acid levels and muscle strength in resistance trained males consuming whey protein: a double-blind, placebo-controlled study.European journal of nutrition · 2022Trial
- Trial
- Gut microbiota: new links between exercise and disease.Frontiers in microbiology · 2026Review
- Unveiling probiotic and prebiotic functional dairy foods: a health beneficial outlook.3 Biotech · 2025Review
- The Role of the Gut Microbiome and Probiotics in Sports Performance: A Narrative Review Update.Nutrients · 2025Review
- Physical Exercise and the Gut Microbiome: A Bidirectional Relationship Influencing Health and Performance.Nutrients · 2024Review
- Depression clinical trials worldwide: a systematic analysis of the ICTRP and comparison with ClinicalTrials.gov.Translational psychiatry · 2024Review
- Supplementation withFoods (Basel, Switzerland) · 2024Article
- A systematic scoping review of study methodology for randomized controlled trials investigating probiotics in athletic and physically active populations.Journal of sport and health science · 2024Article
- Exercise combined with postbiotics treatment results in synergistic improvement of mitochondrial function in the brain of male transgenic mice for Alzheimer's disease.BMC neuroscience · 2023Article
- The crucial role of oxidative stress in non-alcoholic fatty liver disease-induced male reproductive toxicity: the ameliorative effects of Iranian indigenous probiotics.Naunyn-Schmiedeberg's archives of pharmacology · 2022Article
- Mechanisms Involved in Gut Microbiota Regulation of Skeletal Muscle.Oxidative medicine and cellular longevity · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTo determine the effects of probiotic yogurt on performance and health status of young adultfemale endurance swimmers.
methodsIn a randomized controlled trial, 46 endurance swimmers girls with mean age of 13.8 ±1.8 years,weight of 48.6±7.5kg and height of 159±5.6cm, were studied. Subjects were randomly assigned into two groups,receiving either 400 ml probiotic yogurt (intervention group) or ordinary yogurt (control group) daily for 8weeks. At the beginning and at the end of the study, the 400-m free swimming record was done and the HarvardStep test was employed to measure VO2max. Statistical analysis of the data was performed using SPSS software.This trial has been registered with IRCT ID of IRCT2012122311849N1.
resultsAverage changes in the records of the intervention and control groups were 3.9 and 0.5 seconds, respectively(p= 0.22). The intervention group complained of dyspnea for 2.4 days and the value for the controlwas 4.4 days (p=0.024). Values for ear pain were 0.5 and 1.6 days (p=0.008) respectively. The average numberof episodes of respiratory infection in the intervention group was 0.9 day, which was statistically fewer than thatin the control group (1.4 days), P=0.009.
conclusionsA reduction in the number of episodes of respiratory infections and duration of some symptomssuch as dyspnea and ear pain was observed. Due to the reduction in upper respiratory tract infections of theathletes following intake of probiotic yogurt, improvement in VO2max is possible.
Indexed as
Identifiers
24791124PMC3917487W1671135208What OpenQuestion holds
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.