This study aims to highlight the link between learning time and psychomotor slowing down in STAPS students. It is based on the theory of psychological processes. The study hypothesis states that there is a link between learning time and psychomotor slowing in students. The mixed approach (qualitative and quantitative analysis) was favored. Two types of samples, namely a sample of 15 teachers and that of 24 learners with learning difficulties from undergraduate students in Sciences and Techniques of Physical and Sports Activities participated in the study, from observation, semi-structured individual interviews with teachers and focus groups with students. The results highlight difficulties in carrying out activities during learning, due to their inopportune periods and the poor alternation between physical activities and theoretical activities. Various measures are proposed to facilitate the execution of the activities by all the learners, such as the division of the day in two, for each group, with the afternoon for the physical activities in the evening and the morning for the theoretical ones, with a relaxation time after every 2 hours of learning.