This project is aiming to gain a greater insight into the use of high intensity interval training (HIIT) in field based invasion team sports (FITS). In order to gain this insight we conducted a systematic literature review on sprint interval training (SIT), followed by a questionnaire examining FITS coaches HIIT practices. This information will aid us in the development of future interventions. This project will clarify several aspects of coaches HIIT practices such as why it is used and what methods are utilised. The availability of such literature relating to the prescription and organization of HIIT sessions could be a vital source of information to aid in the development of players physical and sports performance. The major findings from our systematic literature review highlights SIT to be an equally effective alternative to traditional conditioning methods to improve aerobic capacity, anaerobic and sprint performance despite having a reduced volume of exercise and time commitment. However, there was a shortage of female participants, with just one of the included studies examining female athletes.Therefore, future research should explore the effects of SIT on female FITS athletes