Potentiating effects of deadlifts on countermovement jump performance
Postactivation potentiation (PAP) is a phenomenon that acutely improves performance after a conditioning activity (CA). The purpose of this study was to investigate the effects of multiple sets of deadlifts on countermovement jump (CMJ) performance. It is hypothesized that the deadlift condition...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
Nanyang Technological University
2021
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| Online Access: | https://hdl.handle.net/10356/153089 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Postactivation potentiation (PAP) is a phenomenon that acutely improves performance after a
conditioning activity (CA). The purpose of this study was to investigate the effects of
multiple sets of deadlifts on countermovement jump (CMJ) performance. It is hypothesized
that the deadlift condition will result in improved performance versus the control. Sixteen
resistance trained males (Age = 24.11 1.11 years; Height = 1.72 0.07 m, Body Mass =
72.21 10.21 kg; Body Fat Percentage = 17.89 8.4 %; Deadlift 1RM = 154.43 32.23 kg;
Relative Deadlift Strength (1RM/Body Mass) = 2.13 0.35) were recruited. On the first
session, subjects underwent anthropometric measurements, CMJ familiarization and 1RM
deadlift test. Thereafter, 2 testing sessions in randomized order were conducted. The control
session involved CMJs at 4, 8, 12 and 16 minutes while the deadlift session involved 3 sets of
3 repetitions of deadlifts at 85% 1RM before the CMJs at 4, 8, 12 and 16 minutes. Jump
height and peak ground reaction force (GRF) were measured using a force plate. Two
separate 2 x 4 (condition x time) repeated measures ANOVA were used to assess peak GRF
and jump height. Repeated measures ANOVA revealed no significant interaction or main
effects of condition or time (p > 0.05). In conclusion, multiple sets of deadlifts was an
ineffective CA to improve CMJ. PAP is a highly individualized phenomenon and is affected
by multiple factors. Future studies can determine the best protocol for deadlifts and PAP.
Keywords: deadlift, countermovement jump, postactivation potentiation, warmups |
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