Study note • PMID 36075947
Tracing the lactate shuttle to the mitochondrial reticulum.
How to use this page
This note summarizes one study record. Check the participants, methods, results, and limitations before applying it to training.
- • Design signal: review.
- • Population relevance: mixed/unclear athlete specificity.
- • Consistency: single-study evidence.
- • Practical recommendation depends on tolerance, context, and whether it protects training consistency.
ELI5
In plain language
Isotope tracer infusion studies employing lactate, glucose, glycerol, and fatty acid isotope tracers were central to the deduction and demonstration of the Lactate Shuttle at the whole-body level. (review; participants).
In this review, the abstract is mixed or unclear for VO₂max, Time-trial performance. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.
Takeaways
What the abstract suggests
- • Study question: Isotope tracer infusion studies employing lactate, glucose, glycerol, and fatty acid isotope tracers were central to the deduction and demonstration of the Lactate Shuttle at the whole-body level.
- • In this review, the abstract is mixed or unclear for VO₂max, Time-trial performance.
- • Population: participants.
- • Protocol cues: abstract may omit dose/timing; use the full paper to replicate accurately.
Protocol
Protocol (as reported)
- • Intervention/exposure: altitude.
- • Dose/time/duration: abstract doesn’t include enough detail; use the full paper’s methods section.
- • Outcomes: VO₂max, Time-trial performance.
- • Replication note: abstracts often omit adherence and timing; confirm details before changing training or supplementation.
Fit
Who it may help, and who should be cautious
Who it helps
- • Athletes similar to the study population (participants) working on altitude.
- • Athletes who can measure VO₂max, Time-trial performance with a repeatable workout or time-trial effort.
Who should be cautious
- • If you have symptoms or conditions that make the intervention risky, get professional guidance.
- • If you’re near race day and can’t safely test, defer the experiment.
Methods
What the study actually did
- • Design: review.
- • Population: participants.
- • Outcomes measured: VO₂max, Time-trial performance.
- • Source: PubMed PMID 36075947 (2022) — Experimental & molecular medicine.
Results excerpt
What the abstract reports
“Within cells, lactate can be exchanged between the cytosol and mitochondria and between the cytosol and peroxisomes.”
Note: excerpts are short; for full context, read the paper.
Limits
Limitations and bias
- • Abstract-only summaries can miss critical details (population, protocol, adherence, and context).
- • Reviews and consensus statements mix protocols and populations; recommendations may not match your exact constraints.
- • If your context differs (elite vs recreational; cycling vs running), adjust expectations and be conservative.
- • This is performance information, not medical advice.
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Performance Science Lab
Research summaries for endurance athletes, with study context, practical protocols, and clear limitations.
Altitude performance research
Altitude can help, but it’s easy to do wrong: the constraint is quality training at reduced oxygen.
VO₂max research for endurance athletes
A ceiling metric: useful, but endurance performance is usually limited by durability and pacing.