Trial reportEuropean journal of applied physiology2007
Constant versus variable-intensity during cycling: effects on subsequent running performance.
Trial report in European journal of applied physiology, 2007. 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, 39 citations in OpenAlex.
- Running Performance Decline in IRONMAN-Distance Triathlon: A Scoping Review of Existing Evidence and Research Gaps.Sports (Basel, Switzerland) · 2026Review
- Competitive demands during international sprint-distance triathlon races according to the course type: The influence of cycling on subsequent running performance.Sports medicine - open · 2025Article
- The Characteristics of Endurance Events with a Variable Pacing Profile-Time to Embrace the Concept of "Intermittent Endurance Events"?Sports (Basel, Switzerland) · 2024Review
- Power Profile during Cycling in World Triathlon Series and Olympic Games.Journal of sports science & medicine · 2024Article
- Racing Demands of Off-Road Triathlon: A Case Study of a National Champion Masters Triathlete.Sports (Basel, Switzerland) · 2021Article
- Physiological Response to Cycling With Variable Versus Constant Power Output.Frontiers in physiology · 2020Article
- Sprinting After Having Sprinted: Prior High-Intensity Stochastic Cycling Impairs the Winning Strike for Gold.Frontiers in physiology · 2019Article
- Factors influencing pacing in triathlon.Open access journal of sports medicine · 2014Review
- Pacing strategy during the initial phase of the run in triathlon: influence on overall performance.European journal of applied physiology · 2010Article
- Influence of gender on pacing adopted by elite triathletes during a competition.European journal of applied physiology · 2009Article
- Neuromuscular adaptations to training, injury and passive interventions: implications for running economy.Sports medicine (Auckland, N.Z.) · 2009Review
- Physiological differences between cycling and running: lessons from triathletes.Sports medicine (Auckland, N.Z.) · 2009Review
- Neuromuscular fatigue is greater following highly variable versus constant intensity endurance cycling.European journal of applied physiology · 2008Article
- Strategies for improving performance in long duration events: Olympic distance triathlon.Sports medicine (Auckland, N.Z.) · 2008Review
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
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to investigate the metabolic responses to variable versus constant-intensity (CI) during 20-km cycling on subsequent 5-km running performance. Ten triathletes, not only completed one incremental cycling test to determine maximal oxygen uptake and maximal aerobic power (MAP), but also three various cycle-run (C-R) combinations conducted in outdoor conditions. During the C-R sessions, subjects performed first a 20-km cycle-time trial with a freely chosen intensity (FCI, approximately 80% MAP) followed by a 5-km run performance. Subsequently, triathletes were required to perform in a random order, two C-R sessions including either a CI, corresponding to the mean power of FCI ride, or a variable-intensity (VI) during cycling with power changes ranging from 68 to 92% MAP, followed immediately by a 5-km run. Metabolic responses and performances were measured during the C-R sessions. Running performance was significantly improved after CI ride (1118 +/- 72 s) compared to those after FCI ride (1134 +/- 64 s) or VI ride (1168 +/- 73 s) despite similar metabolic responses and performances reported during the three cycling bouts. Moreover, metabolic variables were not significantly different between the run sessions in our triathletes. Given the lack of significant differences in metabolic responses between the C-R sessions, the improvement in running time after FCI and CI rides compared to VI ride suggests that other mechanisms, such as changes in neuromuscular activity of peripheral skeletal muscle or muscle fatigue, probably contribute to the influence of power output variation on subsequent running performance.
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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.