Science & Evidence
Built to be tested.
The Breath People runs an applied research programme investigating physiological regulation, cognitive performance under pressure and human performance in demanding environments.
Our work progresses from physiological effects, to controlled testing under stress, to longitudinal measurement in operational settings.
Scientific Basis
From breath to performance.
Breathing provides a practical point of influence over physiological state. Our research asks how that influence relates to autonomic regulation, cognitive capacity and performance when demands increase.
These relationships are interconnected rather than a simple one-directional causal chain. Our research is designed to test individual links rather than assume them.
Research Programme
Three studies. One developing question.
Our research programme moves deliberately from physiology, to cognition under controlled pressure, to operational transfer. Each study addresses a different part of the performance question.
Trial 1 examined physiological change across HPBUT, with a particular focus on resting heart rate variability and the stability of HRV across repeated measurements.
Alongside the physiological data, qualitative work explored participants’ experience of the programme and its practical application.
Preliminary findings showed a small increase in resting HRV alongside reduced HRV variability across the intervention, providing the foundation for further controlled investigation.
Trial 1 – CompletedTrial 2 moves from resting physiology into a controlled performance environment.
Participants are exposed to a standardised social-evaluative stressor while physiological response, recovery and cognitive performance are measured.
The study is designed to investigate whether HPBUT changes the response to acute pressure, the speed of physiological recovery, and the extent of cognitive performance degradation under stress.
Trial 2 – PlannedTrial 3 takes the research into operational training and examines longitudinal physiology and readiness alongside real training demand and objectively assessed performance outcomes.
The study is intended to examine whether measures such as HRV, subjective state and cognitive performance provide meaningful information about changing readiness across repeated periods of training demand.
It also creates the foundation for future work examining how readiness information could support training design and human-performance risk visualisation.
Trial 3 – In DevelopmentResearch progression
Cognition →
Operational performance.
Measurement
Make state visible.
Human performance cannot be understood through a single metric. Our research combines physiological, cognitive, subjective and performance data with the context in which those measurements occur.
Autonomic
Heart rate and heart rate variability, including measures of cardiac autonomic regulation and change over time.
Subjective
Perceived stress, energy, focus, mood and contextual information about the individual’s current state.
Cognitive
Objective measures of cognitive function selected according to the demands and purpose of each study.
Performance
Context-specific performance outcomes, including objectively assessed outcomes where operational data allow.
Demand
Training exposure and relevant contextual variables that help interpret changes in physiology, cognition and performance.
Evidence
Established. Observed. Still to be tested.
We distinguish between the wider scientific literature, findings from our own work and hypotheses that remain under investigation.
Physiology responds to demand.
Stress and increasing task demand are associated with changes in autonomic and cardiovascular activity.
HRV has been investigated as a marker of workload in aviation, while controlled breathing has established effects on cardiorespiratory and autonomic physiology.
Early physiological signal.
Trial 1 provides preliminary evidence that participation in HPBUT may be associated with changes in resting HRV and the stability of HRV over time.
These findings provide a basis for further testing rather than a final claim of efficacy.
Does it transfer to performance?
Trials 2 and 3 extend the question into cognitive performance under acute pressure and longitudinal performance in applied training environments.
These relationships are hypotheses to be tested, not assumed outcomes.
Research Principle
Claim second.
Applied human performance is complex. We are interested not only in whether an intervention appears to work, but in how it works, for whom, under what conditions and where its limits sit.
That means combining controlled research with longitudinal measurement in real performance environments, and being explicit about the difference between association, mechanism and causation.
Our aim is to build evidence that is scientifically defensible and operationally useful.
Research Library
Follow the evidence.
Research outputs, supporting literature and publications will be added as the programme develops.
Research & Collaboration