diagnosis of clinically probable, probable laboratory-supported, or definite ALS (revised El Escorial criteria) or upper motor neuron only (OPM classification \[onset, propagation, motoneuron involvement\])
age ≥18 years; ability to understand study information and provide written informed consent
Willingness and ability to perform individualized exercise according to the study protocol (approximately three to five sessions of 30 minutes per week) for the duration of the intervention period
Individuals of all sexes and gender identities are eligible for inclusion
You may not be if
pregnancy, tracheostomy, continuous assisted ventilation, or other significant non-ALS pulmonary disease
other neurodegenerative or neuromuscular conditions that may confound assessments
concomitant life-threatening disease or impairment interfering with functional assessment
