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BACKGROUND: Plyometric training has been shown to improve performance in distance running events up to 5-km, but little research has been done on this type of training for marathon (42.195-km) runners. The purpose of this study was to examine the effects of plyometric and explosive speed training (PLYO) on recreational marathoners. METHODS: Twenty-two subjects (ages 18-23), were randomized to either PLYO or core training (CORE) for a weekly session performed for 12 weeks, in addition to marathon training. Sprint, jump, and distance running performance variables were measured preand post-intervention. RESULTS: In the sprint tests, the PLYO group improved in both the 200-m run (P ≤ 0.001) and 60-m run (P = 0.004), and trended toward improvement in the 30-m fly (P = 0.051). The difference from CORE was significant only in the 200-m (P = 0.002). The CORE group did not change in any of the sprint or jump variables. The PLYO group was significantly different from the CORE group in the standing long jump (P = 0.024). There were no differences between groups in distance running performance. Both improved in 2-mile (3.219-km) time trial (p ≤ 0.001), VO2MAX (P = 0.026 for CORE; P = 0.002 for PLYO), and running economy (P = 0.01). CONCLUSION: Weekly PLYO training improves sprint speed and maintains jumping ability in recreational marathoners, but does not augment improvements in distance running performance.

Effects of Plyometric and Explosive Speed Training on Recreational Marathoners