ArticleEuropean journal of applied physiology2021
Effects of combined hot and hypoxic conditions on muscle blood flow and muscle oxygenation during repeated cycling sprints.
Article in European journal of applied physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 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
13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 18 citations in OpenAlex.
- Performance changes during and post-exercise in combined heat and hypoxia environments: a systematic review and network meta analysis.Journal of translational medicine · 2026Pooled it
- Muscle Oximetry in Sports Science: An Updated Systematic Review.Sports medicine (Auckland, N.Z.) · 2024Pooled it
- The Methodological Quality of Studies Investigating the Acute Effects of Exercise During Hypoxia Over the Past 40 years: A Systematic Review.Frontiers in physiology · 2022Pooled it
- Trial
- Effects of Combined Heat and Hypoxic Training on the Physiological Responses During Submaximal Interval Exercise in Untrained Men.Journal of functional morphology and kinesiology · 2026Article
- Repeated-sprint exercise delays gastric emptying independently of hypoxia and heat exposure.Physical activity and nutrition · 2026Article
- Time-continuous analysis of muscle and cerebral oxygenation during repeated treadmill sprints under heat stress: a statistical parametric mapping study.European journal of applied physiology · 2025Article
- Analysis of Muscle Oxygenation after a Normobaric Hypoxia Tolerance Test.Journal of functional morphology and kinesiology · 2024Article
- Differential impact of heat and hypoxia on dynamic oxygen uptake and deoxyhemoglobin parameters during incremental exhaustive exercise.Frontiers in physiology · 2023Article
- Comparison of systemic and peripheral responses during high-intensity interval exercise under voluntary hypoventilation vs. hypoxic conditions.Physical activity and nutrition · 2022Article
- Augmented muscle deoxygenation during repeated sprint exercise with post-exercise blood flow restriction.Physiological reports · 2022Article
- Maximizing anaerobic performance with repeated-sprint training in hypoxia: In search of an optimal altitude based on pulse oxygen saturation monitoring.Frontiers in physiology · 2022Article
- A Combined Hot and Hypoxic Environment during Maximal Cycling Sprints Reduced Muscle Oxygen Saturation: A Pilot Study.Journal of sports science & medicine · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
purposeThe purpose of the present study was to determine muscle blood flow and muscle oxygenation during repeated-sprint exercise under combined hot and hypoxic conditions.
methodsIn a single-blind, cross-over research design, 11 active males performed three sets of 5 × 6-s maximal sprints with 30-s active recovery on a cycling ergometer under control (CON; 23 °C, 50% rH, 20.9% FiO
resultsDespite similar repeated-sprint performance among the three conditions (peak and mean power outputs, percent decrement score), HH was associated with significantly higher muscle blood flow compared with CON after the first set (CON: 0.61 ± 0.10 mL/min/100 g; HYP: 0.81 ± 0.13 mL/min/100 g; HH: 0.99 ± 0.16 mL/min/100 g; P < 0.05). The tissue saturation index was significantly lower in HYP than in CON during the latter phase of the exercise (P < 0.05), but it did not differ between HH and CON.
conclusionThese findings suggest that a combination of normobaric hypoxia and heat stress partially facilitated the exercise-induced increase in local blood flow, but it did not enhance tissue desaturation.
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.