## 1 Introduction  
The anterior cruciate ligament (ACL) is the main static stabilizer of anterior translation of the tibia and represents up to 86% of the total force resisting anterior displacement. This ligament has a key proprioceptive function because of its numerous mechanoreceptors [1]. The risk of ACL injury is multifactorial, involving biomechanical, anatomical, hormonal, and neuromuscular factors. Of all cases, 70-80% occur without contact. One of the most described mechanisms in women involves landing with the hip and knee extended, knee valgus, tibial internal rotation, and foot pronation [2, 3]. ACL injury is one of the most common knee injuries in athletes. Each year in the United States, there are an estimated 250,000 ACL tears [4]. Currently, some studies show that women are more susceptible to ACL injury than men [5, 6]. In fact, the number of non-contact injuries is two to nine times higher in women than in men [7, 8]. These injuries are more common in young female athletes who play team sports [7] which involve jumping, turning, and changing directions. By sport, the proportion of non-contact ACL injuries to total ACL injuries was 66% in soccer and 54% in rugby [8]. The impact of these injuries on athletes' sports participation and general well-being can be significant, both in the short and long term. Only 65% of injured soccer players can compete at the same level 3 years after the injury [9; 10]. In the long term, ACL injury is associated with potential complications, including chronic knee instability, meniscus tears, cartilage damage, and a seven-fold increased risk of end-stage osteoarthritis (OA) leading to knee replacement [8]. In addition, after ACL reconstruction, less than 50% of patients will return to sports within one year, less than 65% within two years, 24% will change sports, and 11% will drop out [11; 12]. Several programs based on the neuromuscular system, such as FIFA11+ [13], achieved a 50% reduction in the risk of ACL injuries in men and 67% in women [14], but a consensus has not yet been established. Knowing that these prevention programs are carried out in a period of 6 to 8 weeks, it would be novel to find a form of ACL injury prevention with an immediate effect. Among the most-used bandages, Kinesiotape (KT) is proposed as a beneficial therapeutic tool in the prevention and treatment of sports injuries [15; 16], helping to reduce pain, increase ROM, and improve proprioception as well as muscle activity [17]. Through tactile input, KT stimulates cutaneous mechanoreceptors and motoneurons [18; 19], which can explain why KT has shown positive results in improving function, stability, proprioception, and force production of the muscle in randomized controlled trials [20]. In individuals with a recent ACL rupture, KT application at the knee has been shown to improve proprioception, strength, and static balance [21; 22; 23]. However, in healthy young athletes, there are inconclusive results about the effectiveness of KT at the knee. In some randomized controlled trials, KT is not more effective than sham KT in improving static and dynamic stability [24]. However, during landing tasks, some studies found that KT at the knee reduces the dynamic knee valgus, which could reduce the risk of an ACL injury, considering that a pronounced knee valgus is a relevant factor [20; 25]. In this line, a recent study applied a KT bandage to the knee with a tension of 75%, achieving a significant reduction in the knee valgus during the Jump Landing Test in men [26]. To date, there is inconclusive evidence that KT improves neuromuscular control at the knee in symptomatic populations [27], and it would be interesting to analyze the effectiveness of KT in reducing knee valgus in several closed kinetic chain functional tests focusing on women, since they have a greater risk of suffering from ACL injuries.