# Discovering A New Model of Ideal Posture - Which Way is Up? - 01 Source: https://www.youtube.com/watch?v=pkVqC_Sb_L0 Recap page: https://rapidrecap.app/video/pkVqC_Sb_L0 Generated: 2026-02-17T20:07:31.553+00:00 --- ## Quick Overview The presentation argues that the long-standing "standard model of posture," often referred to as the plumb line posture, is a myth lacking scientific basis and must be replaced by a new, more dynamic concept of ideal posture derived from observing movement principles established by F.M. Alexander. **Key Points:** - The traditional standard model of posture, or plumb line posture, lacks a real scientific basis and is largely an unsupported concept that fails to account for natural human movement dynamics. - F.M. Alexander's work, particularly his observation of the "monkey gesture" (04:25), revealed that attempting to adhere to the plumb line model often results in detrimental postural patterns, such as excessive forward head carriage or exaggerated lumbar curves. - Alexander emphasized that body weight rests chiefly upon the rear foot, and hips should move back as far as possible without altering balance or leaning forward (3:38). - The presentation advocates for a new model where the pelvis is not forced back but moves relative to the knees, as seen in competent movers (08:32). - The speaker suggests that the ideal posture concept needs to be much broader than the vertical line model to apply correctly to dynamic activities like walking, where people naturally lean toward the supporting leg (7:17). - The presentation concludes by inviting viewers to test the Alexander principles themselves, such as attempting the 'monkey gesture' (06:19), to understand the functional difference between the old and new concepts of poise. ![Screenshot at 00:04: The introduction displays the classic drawing of ideal alignment from Kendall's manual, illustrating the plumb line passing through the external auditory canal, shoulder, hip center, knee axis, and lateral malleolus, which the video argues is a myth.](https://ss.rapidrecap.app/screens/pkVqC_Sb_L0/00-00-04.jpg) **Context:** This video presents a critical scoping review arguing against the traditional, static 'standard model of posture' (the plumb line model) often taught in physical education and therapy, which posits that body parts should align vertically when standing still. The presenter references the work of F.M. Alexander, whose self-experimentation led him to develop an alternative understanding of efficient human use, focusing on dynamic balance and the primary control of the head/neck relationship over rigid alignment. ## Detailed Analysis The presentation asserts that the concept of a "standard posture," symbolized by the plumb line model derived from Kendall's manual (0:04), is a myth without solid scientific backing and is actively misleading. The speaker examines Alexander's historical research, noting that Alexander himself found the plumb line model unhelpful for guiding efficient human use. Alexander's observations, such as the 'monkey gesture' (04:25) performed by his students, showed that attempting to force the body into the static ideal often resulted in dysfunctional patterns like excessive forward head posture or incorrect pelvic positioning (08:32). Crucially, Alexander's principle for standing dictated that weight rests on the rear foot, and the hips move back as far as possible without leaning forward (3:38). The video contrasts this with modern dynamic movement, like walking, where leaning toward the supporting leg is natural and necessary (7:11). The speaker concludes that a truly accurate model of posture must be broad enough to encompass dynamic movement and should guide individuals toward organizing their structure based on functional principles rather than an arbitrary static line, encouraging viewers to test these concepts for themselves (6:16). ### Critique of Standard Posture Model - The standard model of posture (plumb line posture) lacks real scientific basis and is an unsupported concept (00:19, 00:21). - The model demands knee recurvatum (hyperextension) if strictly followed while standing (00:48). - Static models fail to account for dynamic movements like walking or bending (7:14, 7:37). ### F.M. Alexander's Findings - Alexander studied how the human body was used, noting that his students struggled to perform the 'monkey gesture' according to the static ideal (04:39, 05:04). - Alexander stated body weight rests chiefly upon the rear foot, allowing hips to go back without throwing the body forward (03:38). - Alexander taught his students to become teachers themselves (04:58). ### Modern Observations - People with postural dysfunction often exhibit hips excessively bent back or excessively forward (08:32). - The post-correction images show individuals moving their hips further back and reducing the lumbar bend (08:39). - The goal is a dynamic concept that applies to all movements, not just standing still (7:21). ![Screenshot at 00:04: The title slide introducing the topic: "The Standard Posture is a Myth: A Scoping Review," presented by Martin E. Barra-López, PhD.](https://ss.rapidrecap.app/screens/pkVqC_Sb_L0/00-00-04.jpg) ![Screenshot at 00:16: A diagram illustrating the traditional plumb line posture, detailing where the line should pass \(ear canal, shoulder, hip, knee, malleolus\).](https://ss.rapidrecap.app/screens/pkVqC_Sb_L0/00-00-16.jpg) ![Screenshot at 00:26: Historical image showing a soldier with heavy equipment, which the presenter implies was used as a basis for early posture models.](https://ss.rapidrecap.app/screens/pkVqC_Sb_L0/00-00-26.jpg) ![Screenshot at 03:31: A quote from F.M. Alexander's book, 'Man's Supreme Inheritance,' emphasizing that weight rests chiefly upon the rear foot and hips should move back without throwing the body forward.](https://ss.rapidrecap.app/screens/pkVqC_Sb_L0/00-03-31.jpg) ![Screenshot at 08:30: A before-and-after comparison of two individuals, showing significant reduction in excessive lumbar lordosis \(red curve\) and improved pelvic alignment \(yellow line\) after practice.](https://ss.rapidrecap.app/screens/pkVqC_Sb_L0/00-08-30.jpg)