If you are not sure what your topic is all about, check it out in a dictionary or encyclopedia.
Books are a good starting point.
Use the Word search in the library's catalogue. You can search on words like biomechanics or physical education . Looking through journals in the hope of finding something relevant is time-consuming. It is better to use the databases or printed indexes to find journal articles on your topic. Now part of Web of Science Make sure you use the right words for your search.