In this episode of the Pilates Science Podcast, hosts Bruce Hildebrand and PAA President Robyn Rix explore the fascinating world of heart rate variability (HRV) and what it can tell us about our health, stress levels and resilience. They unpack what HRV actually measures—the tiny variations in time between each heartbeat—and explain how these fluctuations reflect the dynamic balance between the sympathetic “gas pedal” and the parasympathetic “brake” of the autonomic nervous system. A healthy heart isn’t a rigid metronome; it’s responsive and adaptable, and higher HRV is generally associated with better recovery, flexibility and overall system health, while lower HRV can indicate stress, overload or increased health risk. Bruce and Robyn then walk listeners through the main ways HRV is measured in research: time-domain measures such as SDNN and RMSSD, and frequency-domain measures like HF, LF and the LF/HF ratio. They translate these technical terms into plain language, showing how each metric helps paint a picture of how well the nervous system is regulating the heart. From there, they connect the dots to Pilates, explaining why a single Pilates session might temporarily reduce HRV—because the body is being challenged, just like driving uphill—but how regular Pilates training over weeks tends to improve HRV markers and support a healthier autonomic balance.The conversation highlights research demonstrating that Pilates, especially when combined with slow, controlled breathing, can significantly enhance HRV, making the heart and nervous system more adaptable over time in both healthy individuals and specific groups such as women and people with type 2 diabetes. Bruce and Robyn also discuss how training frequency and intelligently scaled intensity—such as practising three times per week with thoughtful progression—may further optimise these benefits. The episode closes with a clear, empowering message: by integrating consistent Pilates and mindful breathing, people can take an active role in supporting not just musculoskeletal function, but also the subtle, powerful rhythms of their cardiovascular and nervous systems. PAA Course Competency Criteria standardsVisit the PAA website Find us on Facebook Join the PAA Member Forum (Members only)Find us on InstagramEmail us at [email protected]

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