## 5 Onset of Acute, Overuse, and Recurrent Injuries  
Injuries are typically categorized into acute, overuse, or recurrent injuries, each with distinct mechanisms and implications [9]. Acute injuries, caused by sudden traumatic events, are significantly more common than overuse injuries, which develop gradually due to repetitive stress without a specific trauma [57]. Epidemiological data indicate that the incidence rate of acute injuries in female players is 4.55 injuries per 1000 h, substantially higher than the incidence rate for overuse injuries, at 1.56 per 1000 h [58]. However, adolescent female soccer players, who are undergoing rapid physical and neuromuscular development, are particularly vulnerable to both acute and overuse injuries due to factors such as disrupted motor coordination, increased physical demands, and higher training intensities [9]. As these players transition into late adolescence (U17-U19), they face increased workloads and physical demands associated with competitive environments, further contributing to elevated injury rates [59]. During this critical period, overuse injuries often result from repetitive activities, while acute injuries are predominantly linked to high-intensity actions such as accelerations, decelerations, and physical contact during matches [45].  
Simultaneously, these young female players--characterized by less developed neuromuscular and metabolic systems, lower muscle mass, and more compliant muscle-tendon structures--may experience a slightly reduced risk of certain injuries due to their lower capacity to generate and tolerate high levels of force [60].  
Conversely, the prevalence of recurrent injuries is lower in youth players compared to adults, with an injury incidence of 1.4 per 1000 h versus 5.1 per 1000 h for females, respectively [9; 19]. This discrepancy may be attributed to the reduced pressure for early return to play at younger ages, allowing for more effective rehabilitation [61]. Nevertheless, a history of previous injuries remains a strong predictor for future occurrences, particularly in the knee and hamstring [5; 62]. This highlights the importance of delaying the onset of the first injury through targeted prevention strategies, as recurrent injuries not only compromise short-term athletic performance but also negatively impact long-term development and overall health.  
To reduce the risk of recurrent injuries, particularly in high-risk areas like the knee and hamstring, specific rehabilitation techniques and injury prevention strategies are crucial.  
Recent studies have highlighted the importance of proper landing techniques in reducing lower limb injury risks. Optimizing landing strategies, such as improving neuromuscular control and adjusting ankle motion patterns (i.e., increasing ankle initial contact angle and ankle range of motion during single-leg landings) [63], can help to dissipate the impact forces on the knee and ankle joints, thus reducing the risk of injuries like ACL tears and lateral ankle grains. Additionally, targeted strength training and neuromuscular control exercises can further enhance injury prevention and help mitigate the risk of recurrent injuries.