HRV Biofeedback, taught one-to-one on Park Avenue.

Dr. Leah Lagos has spent two decades refining a 10-week HRV biofeedback protocol for elite athletes, portfolio managers, and business leaders. The work is precise and measurable: you learn to identify your personal resonance frequency, breathe in a way that shifts your heart rhythm on demand, and hold that state under real-world pressure — in the arena, on the desk, on the stage.

Every client begins with a 60-minute consultation at 505 Park Avenue. From there, the protocol is built one-to-one, in person or remote, around your physiology and your calendar.

How HRV biofeedback works.

Every cardiovascular system has a natural resonance frequency, usually a breathing rate of around six breaths per minute. Breathing at that rate produces large, regular oscillations in heart rate and blood pressure and strengthens the baroreflex, the reflex that keeps the system stable under load (Vaschillo et al., 2006; Lehrer & Gevirtz, 2014).

HRV biofeedback makes that process visible. A sensor reads your heart rhythm beat by beat; you see it change as you breathe, and you learn the pace and pattern that produce your largest, cleanest oscillation. Your resonance frequency is individual and, once identified, stays stable across training (Vaschillo et al., 2006). That is why the protocol begins by measuring it rather than prescribing a generic breathing count.

Your wearable is the gauge. This is the training.

Oura, WHOOP and other wearables report HRV each morning. They are an excellent gauge. HRV biofeedback is the training that moves the gauge: a structured method for raising and controlling the variability your device measures, and holding it under real pressure.

What the research shows.

• Stress and anxiety: a meta-analysis of 24 studies (484 participants) found a large reduction in self-reported stress and anxiety after HRV biofeedback training (Hedges' g = 0.81 pre-post; 0.83 vs control) (Goessl et al., 2017).
• Health and performance: a 2020 meta-analysis of 58 randomized controlled studies found a significant small-to-moderate effect, largest for anxiety, depression, anger and athletic/artistic performance, smallest for sleep and quality of life (Lehrer et al., 2020).
• Athletes: systematic reviews report improvements in sport performance outcomes, while noting the number of controlled trials is still small (Jimenez Morgan & Molina Mora, 2017; Pagaduan et al., 2020).
• Competitive anxiety: Dr. Lagos's own published case study followed a competitive golfer through 10 weekly sessions of HRV biofeedback at 0.1 Hz (Lagos et al., 2008).

Honest limits: effect sizes vary by outcome, and more large controlled trials are needed (Goessl 2017; Lehrer 2020).

Questions.

How long is the protocol? Ten weeks, one-to-one, built around your physiology and calendar. Every engagement begins with a 60-minute consultation at 505 Park Avenue, in person or remote.

Is HRV biofeedback the same as neurofeedback? No. Neurofeedback trains brain electrical activity (EEG). HRV biofeedback trains heart rhythm through breathing at your resonance frequency, acting on the baroreflex and autonomic regulation.

Is HRV biofeedback the same as biofeedback therapy? Biofeedback therapy is the umbrella clinical term for training that uses real-time physiological feedback. HRV biofeedback is one specific, evidence-based modality within it: training the heart rhythm through resonance-frequency breathing. In this practice it is taught as a one-to-one training protocol by a board-certified (BCB) practitioner.

Do I need an Oura ring or another wearable? No. Training uses a clinical sensor in session. If you already wear a device, it becomes a useful daily gauge of the change.

Can I train remotely? Yes. The protocol runs in person on Park Avenue or remotely.

Is it evidence-based? Yes. HRV biofeedback is supported by multiple meta-analyses for stress, anxiety and performance outcomes (Goessl et al., 2017; Lehrer et al., 2020), with research still developing for some applications.

From the practice.

HRV biofeedback for performance anxiety: what the research shows

HRV biofeedback for post-concussion symptoms

References.

Vaschillo EG, Vaschillo B, Lehrer PM. Characteristics of resonance in heart rate variability stimulated by biofeedback. Appl Psychophysiol Biofeedback. 2006;31(2):129-42. PMID 16838124.
Lehrer PM, Gevirtz R. Heart rate variability biofeedback: how and why does it work? Front Psychol. 2014;5:756. PMID 25101026.
Goessl VC, Curtiss JE, Hofmann SG. The effect of heart rate variability biofeedback training on stress and anxiety: a meta-analysis. Psychol Med. 2017;47(15):2578-86. PMID 28478782.
Lehrer P, et al. Heart rate variability biofeedback improves emotional and physical health and performance: a systematic review and meta analysis. Appl Psychophysiol Biofeedback. 2020;45(3):109-29. PMID 32385728.
Jimenez Morgan S, Molina Mora JA. Effect of heart rate variability biofeedback on sport performance, a systematic review. Appl Psychophysiol Biofeedback. 2017;42:235-45. PMID 28573597.
Pagaduan JC, et al. Can heart rate variability biofeedback improve athletic performance? A systematic review. J Hum Kinet. 2020;73:103-14. PMID 32774542.
Lagos L, Vaschillo E, Vaschillo B, Lehrer P, Bates M, Pandina R. Heart rate variability biofeedback as a strategy for dealing with competitive anxiety: a case study. Biofeedback. 2008;36(3):109-115.