Undergo assessment of muscle tone (Ashworth Scale), gait (BAIOBIT) and risk of falling (Timed Up and Go) before using the device; Use the device on the spastic lower limb(s) for 30 minutes; Go through the same assessment carried out previously.

Inclusion Criteria:

• agree and sign the Free and Informed Consent Form or signature of the person responsible
• individuals with spasiticity (hemiparetic, paraparetic, tetraparetic and hemiparetic children with cerebral palsy)

Exclusion Criteria:

• over 18 years old whose ability to sign the Free and Informed Consent Form is compromised, or who understand it, but are not responsible for signing the Free and Informed Consent Form
• present cardiovascular, neurological, musculoskeletal instability or other condition(s) that interfere with the use or positioning of the device or gait assessment
• present cognitive deficits that interfere with understanding the ICF and/or understanding how to carry out the protocol
• For the children's group, participants who: 1) are under 8 years of age and/or over 13 years of age will be excluded; 2) no person responsible for signing the TCLE; 3) present cognitive deficits that interfere with understanding the ICF and/or understanding how to carry out the protocol

Participants in this study will have their identities preserved, information from this research will be treated confidentially and confidentially by the responsible researchers and their direct collaborators. All data will be made anonymous (that is, it will only contain your participation number in the study, but not your name) and only these researchers will be able to handle this database. This ensures the privacy and confidentiality of participant data in any publication of results.

The data will be stored in a file, under the custody of the responsible researcher, for 5 (five) years, containing individual files.