The intervention program takes place at the Alqueria del Basket facilities in Valencia, Spain, during the regular season. The warm-up regimen is supervised by a performance coach with expertise in basketball. Two days before the start of the program, athletes participate in an information and familiarization session. This session includes a verbal overview and a practical demonstration of the exercises, with the coach providing guidance and corrections to ensure athletes are well-prepared and able to perform the exercises correctly.

The FIFA 11+ protocol consists of fifteen exercises organized into three segments, with three levels of difficulty. The first segment includes six running exercises, the second focuses on six exercises to enhance lower body strength, balance, and agility, and the third segment involves three running exercises aimed at activating the cardiovascular system.

The intervention program takes place at the Alqueria del Basket facilities in Valencia, Spain, during the regular season. The warm-up regimen is supervised by a performance coach with expertise in basketball. Two days before the start of the program, athletes participate in an information and familiarization session. This session includes a verbal overview and a practical demonstration of the exercises, with the coach providing guidance and corrections to ensure athletes are well-prepared and able to perform the exercises correctly.

The Basket-Up warm-up program is developed by a committee of experts, including the medical staff and the Performance Department of Valencia Basket Club, with detailed information previously published. This protocol is specifically designed to address the physiological, functional, and physical demands of basketball training. It is structured into three phases with progressively increasing levels of difficulty, lasting a total of 20 minutes.

The FIFA 11+ protocol consists of fifteen exercises organized into three segments, with three levels of difficulty. The first segment includes six running exercises, the second focuses on six exercises to enhance lower body strength, balance, and agility, and the third segment involves three running exercises aimed at activating the cardiovascular system.

We apply the Lane Agility Test (LAT), which is recognized as a basketball-specific test and is included in the National Basketball Association (NBA) Draft Combine tests. Its reliability is reported with a Cronbach's alpha coefficient of 0.973 and a coefficient of variation of 7.3%.

For the test setup, four cones are placed at the corners of a designated area on the basketball court, forming a square. Participants complete the circuit as quickly as possible, incorporating sprints, lateral movements, and backward running. The time taken to complete the circuit is recorded with a handheld stopwatch. Each participant has two attempts, with a one-minute rest interval between them, and the best attempt is selected.

The Countermovement Jump (CMJ) is chosen to analyze variables related to vertical jump performance. The portable ForceDecks pressure platform (ForceDecks, FDLite V.2, VALD, Brisbane, Australia) serves as the measurement instrument. The CMJ is one of the most commonly used evaluation methods for assessing lower-body explosive power, with strong reported reliability (Cronbach's alpha of 0.98 and a coefficient of variation of 2.4%).

In this test, athletes start by standing on the platform with their hands on their waist. They are instructed to perform a maximum vertical jump by quickly transitioning from bent knees and hips to a fully extended position. Each participant has three attempts, with a 30-second rest interval between jumps, and the best attempt is selected. Data collected from this test include jump height and neuromuscular characteristics such as concentric and eccentric action times, asymmetrical distribution between legs, and jump power.

We apply a 20-meter Sprint Test in which the athlete runs 20 meters at maximum speed. This test has demonstrated strong test-retest reliability, with a coefficient of 0.92.

Athletes start in a standing position with their dominant foot forward. At the 20-meter mark, three photocells (Microgate® Polifemo Radio Light, Bolzano, Italy) are placed to record the athlete's time as they pass. Each participant has two attempts, with a one-minute rest interval between them, and the best attempt is selected.