This dataset contains data within the field of human motion estimation for stroke rehabilitation. It is used in the article named "Sensor Comparison for Multi-Modal Motion Estimation in Upper Body Stroke Rehabilitation". This dataset comprises motion data collected from 16 healthy participants (5 women and 11 men, aged 23-43) engaged in upper body movements as part of a study on stroke rehabilitation and range of motion assessment. Participants performed 12 distinct movements, being recorded by four different sensors: a marker-based optoelectronic motion capture system, eight inertial measurement units (IMUs), one webcam and one stereocamera. The data collection adhered to ethical standards established by the Declaration of Helsinki, ensuring participant anonymity and informed consent.