The strength of weight ‐bearing bones is similar in amenorrheic and eumenorrheic elite long‐distance runners
ConclusionsAmenorrheic adult female elite long‐distance runners had lower BMD in the trunk, lumbar spine, ribs and pelvis than eumenorrheic athletes and controls. The radius and tibia bone size and strength indicators were similar in amenorrheic and eumenorrheic athletes, suggesting that long bones of the limbs differ in their response to amenorrhea from bones in the trunk.This article is protected by copyright. All rights reserved. (Source: Scandinavian Journal of Medicine and Science in Sports)
Source: Scandinavian Journal of Medicine and Science in Sports - January 30, 2018 Category: Sports Medicine Authors: J Piasecki, A Ireland, M Piasecki, J Cameron, J. S McPhee, H Degens Tags: Original Article Source Type: research

Investigating the influence of intraindividual changes in perceived stress symptoms on injury risk in soccer
Research has shown that high levels of stress and stress responsivity can increase the risk of injuries. However, most of the research that has supported this notion has focused on between‐person relationships, ignoring the relationships at the within‐person level. As a result, the objective of this study was to investigate if within‐person changes in perceived stress symptoms over a 1‐month time period could predict injury rates during the subsequent 3 months. A prospective design with two measurement points (Time 1—at the beginning of the season and Time 2—1 month into the season) was utilized. A total of 1...
Source: Scandinavian Journal of Medicine and Science in Sports - January 30, 2018 Category: Sports Medicine Authors: D. Clement, A. Ivarsson, U. Tranaeus, U. Johnson, A. Stenling Tags: ORIGINAL ARTICLE Source Type: research

Maximal shortening velocity during plantar flexion: Effects of pre ‐activity and initial stretching state
We investigated the effects of the initial length of the muscle‐tendon unit (MTU) and muscle pre‐activation on muscle‐tendon interactions during plantarflexion performed at maximal velocity. Ultrasound images of gastrocnemius medialis were obtained on 11 participants in three conditions: (a) active plantarflexion performed at maximal velocity from three increasingly stretched positions (10°, 20°, and 30° dorsiflexion), (b) passive plantarflexion induced by a quick release of the ankle joint from the same three positions, and (c) pre‐activation, which consisted of a maximal isometric contraction of the plantarfle...
Source: Scandinavian Journal of Medicine and Science in Sports - January 30, 2018 Category: Sports Medicine Authors: N. Beaumatin, H. Hauraix, A. Nordez, R. Hager, G. Rabita, G. Guilhem, S. Dorel Tags: ORIGINAL ARTICLE Source Type: research

Injuries in Dutch elite field hockey players: a prospective cohort study
This study describes the prevalence, incidence density, severity, and nature of injuries in elite field hockey players over the Dutch 2015–2016 season. Eighty players answered a baseline questionnaire and were subsequently followed‐up every 2 weeks to report the hours spent on training/competition and experienced injuries, which were registered using the Oslo Sports Trauma Research Centre Questionnaire on Health Problems. Of the 74 players included in the analysis, 52 (70%) reported 112 injuries. Eighty‐seven injuries (78%) received medical attention, and 56 (50%) led to training/competition time loss. Thirty‐four ...
Source: Scandinavian Journal of Medicine and Science in Sports - January 29, 2018 Category: Sports Medicine Authors: S. D. Barboza, J. Nauta, M. van der Pols, W. van Mechelen, E. A. L. M Verhagen Tags: Original Article Source Type: research

Task Experience Influences Coordinative Structures and Performance Variables in Learning a Slalom Ski ‐simulator Task
This article is protected by copyright. All rights reserved. (Source: Scandinavian Journal of Medicine and Science in Sports)
Source: Scandinavian Journal of Medicine and Science in Sports - January 29, 2018 Category: Sports Medicine Authors: Aviroop Dutt ‐Mazumder, Karl M Newell Tags: Original Article Source Type: research