Four weeks of augmented eccentric loading using a novel leg press device improved leg strength in well-trained athletes and professional sprint track cyclists

Harden, ME, Wolf, A, Evans, M, Hicks, KM, Thomas, K ORCID: https://orcid.org/0000-0003-2973-5337 and Howatson, G ORCID: https://orcid.org/0000-0001-8494-2043 2020, 'Four weeks of augmented eccentric loading using a novel leg press device improved leg strength in well-trained athletes and professional sprint track cyclists' , PLOS ONE, 15 (7) , e0236663.

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Abstract

This study assessed the efficacy of strength training using augmented eccentric loading to provoke increases in leg strength in well-trained athletes, and sprint track cyclists, using a novel leg press device. Twelve well-trained athletes were randomly allocated traditional resistance training (TRAD, n = 6), or resistance training using augmented eccentric loading (AEL, n = 6). A further 5 full-time, professional sprint track cyclists from a senior national squad programme also trained with augmented eccentric loading (AEL-ATH) alongside their usual sport-specific training. Participants completed four weeks of twice-weekly resistance training using the leg press exercise. In TRAD the lowering phase of the lift was set relative to concentric strength. In AEL and AEL-ATH the lowering phase was individualised to eccentric strength. Concentric, eccentric, isometric and coupled eccentric-concentric leg press strength, and back squat 1 repetition maximum (1RM), were assessed pre- and post-training. The AEL and AEL-ATH groups performed the eccentric phase with an average 26 ± 4% greater load across the programme. All groups experienced increases in concentric (5%, 7% and 3% for TRAD, AEL & AEL-ATH respectively), eccentric (7%, 11% and 6% for TRAD, AEL & AEL-ATH respectively), and squat 1RM (all p < 0.05), where the AEL-ATH group experienced relatively greater increases (13% vs. 5% in TRAD and AEL, p < 0.01). The TRAD and AEL groups also increased isometric strength (p < 0.05). A four-week period of augmented eccentric loading increased leg strength in well-trained athletes and track cyclists. The eccentric leg press stimulus was well-tolerated, supporting the inclusion of such training in the preparation programmes of athletes.

Item Type: Article
Contributors: Piacentini, Maria Francesca (Editor)
Additional Information: ** From PLOS via Jisc Publications Router ** Licence for this article: http://creativecommons.org/licenses/by/4.0/ **Journal IDs: eissn 1932-6203 **Article IDs: publisher-id: pone-d-20-12765 **History: published_online 29-07-2020; accepted 10-07-2020; submitted 01-05-2020; collection 2020
Schools: Schools > School of Health and Society
Journal or Publication Title: PLOS ONE
Publisher: Public Library of Science
ISSN: 1932-6203
Related URLs:
SWORD Depositor: Publications Router
Depositing User: Publications Router
Date Deposited: 04 Aug 2020 12:47
Last Modified: 04 Aug 2020 13:00
URI: http://usir.salford.ac.uk/id/eprint/57744

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