Amateur In-line skaters aged between 18 and 59 years, with at least one year of experience, without serious illnesses in the last six months or pharmacological treatments that could alter sports practice.

Test to assess ankle dorsiflexion, performing 3 attempts and keeping the best result. The Gyko (Microgate S.r.I, Italy) device was positioned on the tibia about ten centimeters below the knee of the dominant leg. All of them had to perform a squat with their upper limbs extended above their heads and without taking their heels off the ground. The speed of execution was that preferred by each subject.

To evaluate static balance, three fifteen-second measurements were made on the dominant leg. With thirty seconds of rest on both feet in between. Then the final result was calculated based on the data collected from each repetition by Footscan® V9 Software. During the test, the patient was asked to position himself on the Footscan® Pressure Platform (without shoes or socks), so that the second toe of the supporting leg was aligned with the antero-posterior line of the platform, and the medial malleolus with the latero-medial line. The opposite leg, suspended in the air, must maintain a 90º knee bend and the arms must remain crossed over the chest.

First, the static balance assessment was completed with eyes open, during which participants were asked to look at a fixed point, located approximately five meters away. Then the evaluation proceeded with eyes closed, following the same steps.

The maximum isometric strength of adductors and abductors of the dominant leg of each participant, in the supine position on a medical stretcher. Subjects were instructed to grab both sides of the stretcher to stabilize themselves. Accessory movements were not allowed with any part of the body during the test.

After receiving the instructions, they were asked to perform a maximum isometric contraction of five seconds against the dynameter (Nicholas Manual Muscle Tester, Lafayette Indiana Instruments) with the belt hugging their lower limb five centimeters away from the lateral and medial malleolus to measure abduction and adduction, respectively. The participants were guided by the hand of the researchers to ensure that the correct action was taken. In addition, verbal stimuli were used to encourage the subjects. The dynamometer was fixed by a belt to a stable and vertical structure anchored to the ground.