Effects of strength, explosive and plyometric training on energy cost of running in ultra‐endurance athletes
- 10 April 2017
- journal article
- Published by Wiley in European Journal of Sport Science
- Vol. 17 (7), 805-813
- https://doi.org/10.1080/17461391.2017.1305454
Abstract
The aim of the present study was to evaluate the effects of a 12-week home-based strength, explosive and plyometric (SEP) training on the cost of running (Cr) in well-trained ultra-marathoners and to assess the main mechanical parameters affecting changes in Cr. Twenty-five male runners (38.2 ± 7.1 years; body mass index: 23.0 ± 1.1 kg·m; V˙Omax: 55.4 ± 4.0 mlO·kg·min) were divided into an exercise (EG = 13) and control group (CG = 12). Before and after a 12-week SEP training, Cr, spring-mass model parameters at four speeds (8, 10, 12, 14 km·h) were calculated and maximal muscle power (MMP) of the lower limbs was measured. In EG, Cr decreased significantly (p < .05) at all tested running speeds (-6.4 ± 6.5% at 8 km·h; -3.5 ± 5.3% at 10 km·h; -4.0 ± 5.5% at 12 km·h; -3.2 ± 4.5% at 14 km·h), contact time (t) increased at 8, 10 and 12 km·h by mean +4.4 ± 0.1% and t decreased by -25.6 ± 0.1% at 8 km·h (p < .05). Further, inverse relationships between changes in Cr and MMP at 10 (p = .013; r = -0.67) and 12 km·h (p < .001; r = -0.86) were shown. Conversely, no differences were detected in the CG in any of the studied parameters. Thus, 12-week SEP training programme lower the Cr in well-trained ultra-marathoners at submaximal speeds. Increased t and an inverse relationship between changes in Cr and changes in MMP could be in part explain the decreased Cr. Thus, adding at least three sessions per week of SEP exercises in the normal endurance-training programme may decrease the Cr.Keywords
This publication has 32 references indexed in Scilit:
- Effects of resistance training on endurance capacity and muscle fiber composition in young top‐level cyclistsScandinavian Journal of Medicine & Science in Sports, 2011
- Effects of a Concurrent Strength and Endurance Training on Running Performance and Running Economy in Recreational Marathon RunnersJournal of Strength & Conditioning Research, 2010
- Maximal Strength Training Improves Running Economy in Distance RunnersMedicine & Science in Sports & Exercise, 2008
- Influence of the muscle-tendon unit's mechanical and morphological properties on running economyJournal Of Experimental Biology, 2006
- Is there an Optimal Training Intensity for Enhancing the Maximal Oxygen Uptake of Distance Runners?Sports Medicine, 2006
- Muscle mechanical advantage of human walking and running: implications for energy costJournal of Applied Physiology, 2004
- Interval training program optimization in highly trained endurance cyclistsMedicine & Science in Sports & Exercise, 2002
- Effects of concurrent endurance and strength training on running economy and &OV0312;O2 kineticsMedicine & Science in Sports & Exercise, 2002
- Training‐induced changes in peritendinous type I collagen turnover determined by microdialysis in humansThe Journal of Physiology, 2001
- Energetics of running: a new perspectiveNature, 1990