Low, MatthewMoffatt, Fiona HKerry, RogerNicholls, David A2025-12-102025-12-102025-07-18Physiotherapy Theory and Practice, ISSN: 0959-3985 (Print); 1532-5040 (Online), Taylor and Francis Group, 41(12), 2681-2699. doi: 10.1080/09593985.2025.25325720959-39851532-5040http://hdl.handle.net/10292/20373Physiotherapy faces mounting challenges in an era of planetary crisis. This paper proposes a reorientation of physiotherapy through the philosophy of Gilles Deleuze and Félix Guattari, specifically their concept of ethology, which foregrounds affect, relation, and immanence. We argue that contemporary physiotherapy remains tethered to anthropocentric, essentialist, and representational assumptions that limit its capacity to respond to complex ecological entanglements. Drawing on ethology, we explore how bodies, human and non-human, can be understood not as stable entities but as dynamic assemblages defined by what they can do. We consider the implications of this approach for practice, education, and planetary health, suggesting that physiotherapy shift from its traditional forms of praxis toward a dynamic composition of capacities. In doing so, the profession might cultivate an ecologically attuned, affectively sensitive, and experimentally oriented practice capable of engaging in the world.© 2025 The Author(s). Published with license by Taylor & Francis Group, LLC. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent.Deleuze and guattariphysioethologyphysiotherapypost-humanismtheory4201 Allied Health and Rehabilitation Science42 Health Sciences1103 Clinical Sciences1106 Human Movement and Sports SciencesRehabilitationHumansHumanismPhysical Therapy SpecialtyPhysical Therapy ModalitiesJournal ArticleOpenAccess10.1080/09593985.2025.2532572