The Comprehensive Evolution of Cryotherapy: A Review on Mechanisms, Applications and the Future of Cold Therapy from Sports Medicine to Metabolic Health

Abstract

Background: Cryotherapy, ranging from simple ice packs to systemic cryogenic chambers, has evolved from an ancient practice to a scientifically grounded method used for acute injury management, chronic inflammatory conditions, and mental well-being. The recent popularity of systemic methods like Cold Water Immersion (CWI) and Whole-Body Cryotherapy (WBC) has broadened the focus beyond local analgesia to complex physiological systems. Aims and Objectives: This review aims to meticulously examine the fundamental physiological and biochemical mechanisms of cold therapy, comparatively evaluate the evidence-based clinical efficacy of local and systemic modalities across sports medicine, rehabilitation, and general health, and discuss the existing gaps and future research directions in the field. Methodology): This article utilized a comprehensive narrative review approach, synthesizing existing literature to cover the historical context, physiological mechanisms, clinical applications, risks, contraindications, and safety protocols of cryotherapy. Key Findings: The literature confirms cryotherapy's established role in pain reduction and edema control via local physiological changes, while systemic applications show compelling evidence for enhanced subjective recovery and powerful neuroendocrine activation. Conclusion: Cryotherapy is a versatile modality, though protocol standardization remains a key limitation. Future research must prioritize establishing definitive dose-response curves and clarifying long-term molecular and psychological effects.