| Summary: | The purpose of this study was to compare the absolute and relative peak and mean Ground Reaction Force (GRF) generated by both Conventional Deadlift (CDL) and Romanian Deadlift (RDL) during concentric and eccentric phase as determined by force plate. The time to peak force between these two deadlifts was also compared. Twenty recreationally active male in weight training (age 21.34±1.82 years; body height 170.24±5.71m; body mass 65.34±4.48 kg) were recruited to perform the RDL and CDL. The participant would stand upright with both feet on top of the force platform. Two repetitions of 90% of the participant 1RM deadlift is done. The participant is then allowed to take a 5-minute rest before continuing the same routine for another two set. After 3 sets of 2 reps of CDL or RDL, he is allowed to rest for 3 days before continuing for the next session. The same participant is then required to do the RDL or CDL until each one of them completed both the CDL and RDL session. One tri-axial AMTI force platform with data sampling rate of 1000 Hz were used to collect kinetic data. A repeated measure multivariate analysis of variances (MANOVA) was used to examine the differences in the variables with the significance level set at p<.05. Result showed significant difference found between the Conventional and Romanian deadlift in term of absolute and relative peak and mean concentric force. CDL showed a higher GRF during concentric compared to RDL. Time taken to peak force is also faster in CDL compared to RDL. There is no significant difference found during eccentric movement between CDL and RDL. Overall, the findings showed that there are different biomechanical responses with different types of the deadlift in different phases. © 2024 Author(s).
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