Reconsider... Are You Wide or Narrow? with Bill Hartman | Episode #50

This podcast episode explores the differentiation between wide and narrow ISA (ilio-sacral angle) archetypes, emphasizing that these are behavioral tendencies, not absolutes, useful for guiding treatment strategies. The discussion highlights that wides tend to exhibit an open position with difficulty closing, compensatory ER (external rotation), and a predisposition for force production, while narrows often present a closed position, compensatory IR (internal rotation), and excel in endurance activities. Visual examples, including comparisons of body types like greyhounds versus bulldogs and athletes in different sports, illustrate these structural and functional differences. The hosts stress that recognizing these archetypes can aid practitioners in tailoring interventions for individuals who don't respond to standard treatments, respecting individual constraints and movement tendencies.