Poster
Effect of 8 Weeks of Eccentric Cycling Training on Running Economy in Healthy Males
Medicine and science in sports and exercise, v 50(5S), pp 117-117
May 2018
Abstract
Running economy (RE) has been shown to be a determinant of running performance. Evidence from recent investigations suggests that various forms of resistance and plyometric training can improve RE by augmenting changes in leg spring stiffness and/or exaggerating the stretch-shortening cycle. While eccentric cycling training (ECT) has been demonstrated to elicit improvements in muscular hypertrophy, muscular power, and increased leg spring stiffness, it remains unclear if ECT will improve running economy and/or performance.
PURPOSE: The purpose of our investigation was to examine if an 8-week ECT intervention could improve RE and in healthy males.
METHODS: Seven healthy males (age=29±9 yrs; mass=76.6±15.6 kg; height=1.72±0.1 m; BMI=25.6±3.7 kg/m2) performed modified 10-second Wingate tests to obtain peak power output (PPO). ECT intensity was prescribed based on baseline PPO values. Participants performed ECT for 8 weeks (2x/week; 5-10.5 min; 20-55% of PPO). RE was obtained through metabolic analysis during treadmill running at 3 randomized speeds (2.24m/s, 2.68m/s, and 3.13m/s) for 4 minutes consecutively. PPO (W) and RE (ml/kg0.75/min) were assessed prior to, and following the 8-week ECT intervention. Pre- versus post training changes in RE were analyzed using paired sample t-tests, alpha level was set at 0.05. Cohen’s d effect size (ES) were calculated for all analyses and ES magnitudes of 0.10, 0.30, and 0.50 were interpreted as small, medium, and large effects, respectively.
RESULTS: Post-training RE was significantly improved while running at 2.24m/s (P=0.002, ES=0.91; Table 1).
CONCLUSIONS: These results demonstrate that 8 weeks of ECT was effective in improving RE in healthy individuals. We speculate that the improvement in RE may be attributed to an increase in leg spring stiffness. To the best of our knowledge, this is the first report of a significant improvement in RE following ECT. Improvement in RE would be beneficial for both coaches and athletes.
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Details
- Title
- Effect of 8 Weeks of Eccentric Cycling Training on Running Economy in Healthy Males
- Creators
- Albino G. Schifino - Central Connecticut State UniversityAndrew J. Weiler - Central Connecticut State UniversityJonathan Huaqui - Central Connecticut State UniversityChee Hoi Leong - Central Connecticut State University
- Publication Details
- Medicine and science in sports and exercise, v 50(5S), pp 117-117
- Conference
- American College of Sports Medicine Annual Meeting (Minneapolis, Minnesota, United States, 29 May 2018–02 Jun 2018)
- Number of pages
- 1
- Resource Type
- Poster
- Language
- English
- Academic Unit
- Physical Therapy (and Rehabilitation Sciences)
- Web of Science ID
- WOS:000456870500372
- Other Identifier
- 991022030173204721
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- Web of Science research areas
- Sport Sciences