Physiotherapist Scot Morrison discusses the envelope of function model in healthcare, covering concepts like capacity vs tolerance and stressors in training. The podcast also explores Bayesian reasoning, uncertainty, and the model's application in pain perception and exercise prescription.
The envelope of function focuses on optimal activity levels to prevent harm while promoting adaptation.
Capacity and tolerance play crucial roles in determining appropriate therapy interventions based on individual characteristics.
The envelope of function model is a valuable tool for clinical decision-making, but its scientific testing applications are limited.
Deep dives
Overview of the Shoulder Physio Podcast
The Shoulder Physio Podcast is dedicated to exploring musculoskeletal healthcare topics with host Garrett Powell. The podcast emphasizes education and information. Special guests like Scott Morrison, a physical therapist specializing in high performance, discuss topics like the envelope of function paradigm introduced by Scott Die. The podcast also features workshops and events related to evidence-based shoulder pain management.
The Concept of Envelope of Function
The envelope of function model addresses the range where activities are beneficial without causing harm, focusing on intensity and duration. It considers a zone where the dosage is effective enough for maintenance but not damaging. The model guides decision-making on activities based on increasing adaptation and capacity while avoiding exceeding tissue tolerance levels.
Capacity versus Tolerance
Capacity refers to structural limits of tissue or systems, while tolerance is the willingness to handle that limit. Scott Morrison explains a four-quadrant model involving high capacity and tolerance, low capacity and tolerance, and how this guides therapy decisions and tailored interventions.
Application of Envelope of Function in Clinical Practice
In clinical practice, the envelope of function aids in determining appropriate activities for patients, considering their desired goals and tissue adaptability. It helps differentiate between gradual and intense approaches based on individual capacity and tolerance levels.
Scientific Inquiry and Application in Clinical Practice
While the envelope of function model aids in decision-making within clinical practice, its applicability to scientific testing is limited. The model serves as a heuristic framework for guiding patient interventions, highlighting the importance of carefully assessing patient feedback and adjusting treatment plans accordingly.
In this episode I am joined by Scot Morrison to discuss the envelope of function model, as proposed by Scott Dye in the 1990s. The envelope of function has gained increasing acceptance over the past decade and I thought a deep dive into this concept was needed to highlight the potential pro's and con's of implementing this into clinical practice.