Muscle fatigue has been postulated to hinder proprioceptive acuity by elevating the discharge threshold of muscle receptors and disrupting afferent information. The concept of proprioception encompasses several subcategories, including joint position awareness, kinesthesia, awareness of force, sense of velocity, and sense of vibration.

Motor control assessment tools for athletes are crucial for evaluating their movement patterns, coordination, and performance. Key tools include the Functional Movement Screen (FMS) for identifying mobility limitations, the Y Balance Test and Star Excursion Balance Test for balance and stability assessment, and the Quick Dash Test for upper extremity function. Additionally, dynamometers measure muscle strength, while video analysis software enhances movement evaluation. Advanced options like electromyography (EMG), force plates, and 3D motion capture systems provide detailed insights into muscle activation and biomechanics, aiding in injury prevention and performance enhancement.

Performance assessment tools tailored for athletes' upper and lower extremities evaluate strength, power, coordination, and function. For the upper extremity, assessments like the Push-Up Test, Grip Strength Dynamometer, and Medicine Ball Throw measure strength and explosive power, while the Overhead Press 1-RM Test evaluates shoulder strength. In contrast, lower extremity tools such as the Vertical Jump Test and 30-Meter Sprint Test assess explosiveness and speed, and the Agility T-test and Single-Leg Hop Test gauge agility and balance.

This collection aims to investigate the effect of fatigue (peripheral or central fatigue or mental fatigue) on proprioception (joint position sense, kinesthesia, sense of force), motor control, and performance of the upper or lower extremities in athletes.