Aim: Muscle activity analysis during deadlift is an important tool for assessing the effectivity of the exercise. Some studies indicate difference in muscle activities when collegiate athletes perform it on unstable surface. Materials and Methods: In this study, thirty collegiate male athletes were recruited. MVIC was recorded for each deadlift exercise. Results: Isometric deadlift executed on BOSU ball resulted in greater % MVIC change in core muscles (p<0.05), i.e., transversus abdominis and multifidus while no statistical difference was found when dynamic deadlift was executed on both surfaces (p>0.05). Conclusion: Isometric deadlift exercise result in significant change in muscle activity as compared to dynamic deadlift.

Keyword: EMG; BOSU; TrA; Multifidus; Athletes.