This document discusses ethical issues in physiotherapy research and biomedical research involving humans. It outlines guidelines for ethical research put forth by the World Confederation of Physical Therapy, which include respecting patient rights, providing quality service, accepting responsibility, and being honest and accountable. Key principles of ethics in research are described, such as autonomy, beneficence, justice, and non-maleficence. Issues like informed consent, conflicts of interest, plagiarism, and the role of institutional ethics committees are also covered.