Blar i Brage NIH på forfatter "Dalen-Lorentsen, Torstein"
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Assessing the cumulative effect of long-term training load on the risk of injury in team sports
Bache-Mathiesen, Lena Kristin; Andersen, Thor Einar; Dalen-Lorentsen, Torstein; Clarsen, Benjamin Matthew; Fagerland, Morten Wang (Peer reviewed; Journal article, 2022)Objectives: Determine how to assess the cumulative effect of training load on the risk of injury or health problems in team sports. Methods: First, we performed a simulation based on a Norwegian Premier League male ... -
A cherry, ripe for picking: The relationship between the acute-chronic workload ratio and health problems
Dalen-Lorentsen, Torstein; Andersen, Thor Einar; Bjørneboe, John Andreas; Vagle, Markus; Martin, Kevin Nordanger; Kleppen, Michael; Fagerland, Morten; Clarsen, Benjamin Matthew (Peer reviewed; Journal article, 2021)Objective: To investigate whether the relationship between the acute-chronic workload ratio (ACWR) and health problems varies when different methodological approaches are used to quantify it. Design: Prospective cohort ... -
Does load management using the acute:chronic workload ratio prevent health problems?: A cluster randomised trial of 482 elite youth footballers of both sexes
Dalen-Lorentsen, Torstein; Bjørneboe, John Andreas; Clarsen, Benjamin Matthew; Vagle, Markus; Fagerland, Morten; Andersen, Thor Einar (Peer reviewed; Journal article, 2020)Background: The acute:chronic workload ratio (ACWR) is commonly used to manage training load in sports, particularly to reduce injury risk. However, despite its extensive application as a prevention intervention, the ... -
Facilitators and barriers for implementation of a load management intervention in football
Dalen-Lorentsen, Torstein; Ranvik, Andreas M.; Bjørneboe, John Andreas; Clarsen, Benjamin Matthew; Andersen, Thor Einar (Peer reviewed; Journal article, 2021)Background: In a recent randomised controlled trial, we found that a commonly used training load management approach was not effective in preventing injuries and illnesses in Norwegian elite youth footballers. Aim: To ... -
Injury characteristics in Norwegian male professional football: A comparison between a regular season and a season in the pandemic
Dalen-Lorentsen, Torstein; Andersen, Thor Einar; Thorbjørnsen, Christian; Brown, Michael; Tovi, David; Braastad, Anders; Lindinger, Tom Gerald; Williams, Christian; Moen, Eirik; Clarsen, Benjamin Matthew; Bjørneboe, John Andreas (Peer reviewed; Journal article, 2022)The Coronavirus Disease-19 (COVID-19) pandemic forced the Norwegian male premier league football season to reschedule, reducing the fixture calendar substantially. Previous research has shown that a congested match schedule ... -
A new statistical approach to training load and injury risk: Separating the acute from the chronic load
Bache-Mathiesen, Lena Kristin; Andersen, Thor Einar; Dalen-Lorentsen, Torstein; Tabben, Montassar; Chamari, Karim; Clarsen, Benjamin Matthew; Fagerland, Morten (Peer reviewed; Journal article, 2024)The relationship between recent (acute) training load relative to long-term (chronic) training load may be associated with sports injury risk. We explored the potential for modelling acute and chronic loads separately to ... -
Not straightforward: Modelling non-linearity in training load and injury research
Bache-Mathiesen, Lena Kristin; Andersen, Thor Einar; Dalen-Lorentsen, Torstein; Clarsen, Benjamin Matthew; Fagerland, Morten Wang (Peer reviewed; Journal article, 2021)Objectives To determine whether the relationship between training load and injury risk is non-linear and investigate ways of handling non-linearity. Methods We analysed daily training load and injury data from ... -
Physical performance profiles in Norwegian Premier League Female Football: A descriptive study
Vagle, Markus; Dalen-Lorentsen, Torstein; Moksnes, Håvard; Harøy, Joar; Bjørneboe, John Andreas; Andersen, Thor Einar (Peer reviewed; Journal article, 2023)Purpose: To map anthropometric and physical performance profiles in Norwegian premier league female football players. Methods: During preseason, the physical qualities of 107 players were tested on Keiser leg press, ... -
Prepare to fail or failing to prepare?: Acute performance after the 11+ with and without strength exercises
Støvland, Varg Ringdal; Amundsen, Roar; Paulsen, Gøran; Dalen-Lorentsen, Torstein (Peer reviewed; Journal article, 2023)Objectives: The 11+ is an effective injury prevention warm-up programme but is often poorly adopted in practice. One reason for low compliance is the claim that the strength training part of the programme acutely impairs ... -
Training load and health problems in football: More complex than we first thought?
Dalen-Lorentsen, Torstein (Doctoral thesis, 2021)Background: Health problems are prevalent in football, and in both elite youth and professional football, players are expected to sustain several health problems per season. Also, at any given time of the season, the ...