Background: In healthy individuals, to achieve a favourable physical training response and enable the appropriate prescription of physical activities, functional physical capacity should be established. Shuttle walk test (SWT) is a standardized incremental field walking test which provokes a symptom-limited maximal performance and provides an objective measurement of disability and allows direct comparison of the individual performance. Objective: To examine responses of SWT on the field and treadmill in healthy individuals. Materials and methods: A reliability study was conducted to examine the responses of SWT performed on the field and on the treadmill for age group 18 __ampersandsignndash; 50 yrs of both gender. Result: Outcomes measured were distance covered, VO2 max, HR, BP, RPE (6-20) after performing shuttle walk test on field and on treadmill. The distance covered between the 2 testsshows no correlation with insignificant p-value and with poor reliability (Cronbach__ampersandsignrsquo;s __ampersandsignalpha;: 0.221) whereas the other responses shows good correlation. Conclusion: Shuttle walk test carried on field can be interchangeably used with SWT on treadmill in case of a healthy individual.