ArticleBiology of sport2015
Changes in the acid-base balance and lactate concentration in the blood in amateur ultramarathon runners during a 100-km run.
Article in Biology of sport, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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
14 citing papers in PubMed, 21 citations in OpenAlex.
- Photobiomodulation therapy before futsal matches improves the staying time of athletes in the court and accelerates post-exercise recovery.Lasers in medical science · 2019Trial
- A Descriptive Pilot Study of Endothelial Transcriptomic Responses to Extended Lactate Exposure In Vitro.Biology · 2026Article
- Article
- Change in elevation predicts 100 km ultra marathon performance.Scientific reports · 2025Article
- Fractal correlation properties of heart rate variability and respiratory frequency as measures of endurance exercise durability.European journal of applied physiology · 2025Article
- Impact of Genetic Polymorphisms on Electrochemical Parameters and Acid-Base Disorders in Brazilian Runners During a 105-Kilometer Ultramarathon.Nutrients · 2024Article
- Fractal Correlation Properties of Heart Rate Variability as a Biomarker for Intensity Distribution and Training Prescription in Endurance Exercise: An Update.Frontiers in physiology · 2022Review
- Fractal correlation properties of heart rate variability as a biomarker of endurance exercise fatigue in ultramarathon runners.Physiological reports · 2021Article
- Factors influencing post-exercise proteinuria after marathon and ultramarathon races.Biology of sport · 2020Article
- Combination of Antimicrobial Starters for Feed Fermentation: Influence on Piglet Feces Microbiota and Health and Growth Performance, Including Mycotoxin BiotransformationFrontiers in veterinary science · 2020Article
- Low-Carbohydrate Ketogenic Diets in Male Endurance Athletes Demonstrate Different Micronutrient Contents and Changes in Corpuscular Haemoglobin over 12 Weeks.Sports (Basel, Switzerland) · 2019Article
- Ultramarathon-Induced Bilateral Corneal Edema: A Case Report and a Review of the Literature.Ophthalmology and therapy · 2018Article
- Physiology and Pathophysiology in Ultra-Marathon Running.Frontiers in physiology · 2018Review
- Pacing During and Physiological Response After a 12-Hour Ultra-Marathon in a 95-Year-Old Male Runner.Frontiers in physiology · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to analyse the acid-base balance and partial pressure of blood gases of participants during a 100-km run. Fourteen experienced amateur ultramarathon runners (age: 43.36±11.83 years; height: 175.29±6.98 cm; weight: 72.12±7.36 kg) completed the 100-km run. Blood samples were taken before the run; after 25, 50, 75, and 100 km; and 12 and 24 hours after the run. There were significant differences (p<0.05) between the mean values registered for acid-alkaline balance, buffering alkalies, and current bicarbonate in each segment of the run, especially during the third, fourth, and fifth segments of the run (i.e., between 50 and 100 km), and there were only significant differences associated with buffering alkalies and current bicarbonate during the recovery. However, all the changes were within the physiological norm. A significant decrease in the compressibility of oxygen was observed after 100 km (from 92.80±15.67 to 88.36±13.71 mmHg) and continued during the recovery to 75.06±8.60 mmHg 12 h after the run. Also there was a decrease in saturation to a mean value of 93.78±3.10 at 12 h after the run. Generally the amateurs runners are able to adjust their running speed so as not to provoke a significant acid-base imbalance or lactate acid accumulation.
Indexed as
Identifiers
What 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.