Pilot study Pilot study will be conducted before the commencement of the study, the pilot study will enable the researcher and the research assistant to familiarized them self with the protocol of the intervention. The pilot study will involve two group the rebound exercises group and the circuit training group, each group will have at least 10 participants and they will be recruited from the gymnasium of the department of Biokinetic and physiotherapy School of Health sciences, College of Health Sciences, University of KwaZulu-Natal.