Scandinavian Journal of Medicine & Science in Sports

Cover image for Vol. 28 Issue 2

Edited By: Stephen Harridge

Impact Factor: 3.331

ISI Journal Citation Reports © Ranking: 2016: 9/81 (Sport Sciences)

Online ISSN: 1600-0838

Recently Published Issues

See all

Editor's Choice

Read this month's

Read a featured article every month for free!

Effects of resistance training using known vs unknown loads on eccentric-phase adaptations and concentric velocity
Hernández-Davó

The ability to develop high rates of muscle is a key component of performance of tasks which involve short contraction times. Such explosive movements are often characterized by muscle actions involving the sequential combination of eccentric and concentric, otherwise known as the stretch-shortening cycle. Although the potentiating effects of the stretch shortening cycle are well described the mechanisms responsible are still unclear. In an article published in this month's issue of SJMSS by Hernández-Davó and colleagues the changes in eccentric and concentric rebound bench press throw performances after a 4-week resistance training intervention were studied. For each repetition, the load was dropped and then a rebound bench press at maximum velocity was immediately performed. For the training participants, who were trained handball players, used either known loads or loads to which they were “blinded” during contractions. In the unknown loading group significantly greater improvements in concentric velocity at 50% and 70% 1-RM loads were observed, with the improvement potentially being explained by increases in the speed (as well as stiffness and kinetic energy) of the eccentric phase. It is hypothesised that the withholding of load information when receiving the barbell was associated with an increased in pre-activation of the of the muscles involved as a response to the over-estimation of the unknown load. The data have implications for the use of unknown loads for the improving the performance of multi-joint stretch- shortening cycle movements.

Read previous Editor's Choice articles here

Recently Published Articles

  1. Acute responses to structured aerobic and resistance exercise in women with gestational diabetes mellitus

    Iva Sklempe Kokic, Marina Ivanisevic, Tomislav Kokic, Bostjan Simunic and Rado Pisot

    Accepted manuscript online: 20 FEB 2018 09:25AM EST | DOI: 10.1111/sms.13076

  2. Validity of activity trackers, smartphones, and phone applications to measure steps in various walking conditions

    Christoph Höchsmann, Raphael Knaier, Jennifer Eymann, Jonas Hintermann, Denis Infanger and Arno Schmidt-Trucksäss

    Accepted manuscript online: 20 FEB 2018 02:30AM EST | DOI: 10.1111/sms.13074

  3. The prevalence and severity of health problems in youth elite sports: A 6-month prospective cohort study of 320 athletes

    C. H. Moseid, G. Myklebust, M. W. Fagerland, B. Clarsen and R. Bahr

    Version of Record online: 19 FEB 2018 | DOI: 10.1111/sms.13047

  4. The Co-developmental Dynamic of Sport and School Burnout among Student-Athletes: The Role of Achievement Goals

    Matilda Sorkkila, Kaisa Aunola, Katariina Salmela-Aro, Asko Tolvanen and Tatiana V. Ryba

    Accepted manuscript online: 17 FEB 2018 09:00AM EST | DOI: 10.1111/sms.13073

SEARCH

SEARCH BY CITATION