30/10/2026
Twisted your ankle? Understand what a sprain really means.
An ankle sprain happens when excessive force stretches or tears the ligaments that stabilise the joint. Most commonly, the ankle rolls inward, affecting the lateral ligament complex, particularly the anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL). Sprains range from Grade I (mild ligament damage) to Grade III (complete rupture). According to Marta and Kawiyana (2016), injury severity influences clinical presentation, joint stability and rehabilitation requirements.
Although frequently confused, sprains and strains involve different tissues. A sprain affects ligaments connecting bones, whereas a strain involves injury to muscle fibres or the muscle–tendon unit. Strains typically result from excessive stretching or forceful muscular contraction, often affecting the hamstrings, quadriceps or calf muscles. Järvinen et al. (2000) describe muscle strain injuries as involving varying degrees of fibre disruption, followed by inflammation, tissue regeneration and remodelling.
Ankle sprains commonly produce pain, swelling, bruising and reduced weight-bearing tolerance. Clinical assessment should establish injury severity and, when indicated, exclude fractures. Rehabilitation requires more than symptom reduction. Halabchi and Hassabi (2020) emphasise early functional support, progressive loading, strengthening, proprioceptive training and sport-specific exercises to restore stability and reduce recurrent injury risk. Persistent instability may indicate incomplete functional recovery and require further assessment.