Stephen Seiler

Stephen Seiler
Universitetet i Agder | UIA · Department of Sport Science and Physical Education

PhD

About

186
Publications
581,731
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Introduction
Passionate about exercise physiology and training adaptations, particularly to endurance training. Past Vice-Rector for Research and Innovation. Past Dean of Faculty of Health and Sport Sciences at University of Agder, Kristiansand, Norway. Former Senior Research Consultant, Norwegian Olympic Federation. Past Executive Board of Directors, European College of Sport Science.
Additional affiliations
January 2016 - August 2019
Universitetet i Agder
Position
  • Vice- Rector for Research and Innovation
August 2011 - present
Norwegian Olympic Federation
Position
  • Senior research consultant
August 2011 - December 2015
Universitetet i Agder
Position
  • Dean, Faculty of Health and Sport Sciences

Publications

Publications (186)
Article
Purpose: Investigate development of specific performance adaptions and hormonal responses every 4 week during a 12-week HIT period in groups with different interval-training prescriptions. Methods: Sixty-three well-trained cyclists performing a 12-week intervention consisting of 2-3 HIT sessionsweek in addition to ad libitum low intensity traini...
Presentation
Full-text available
This is an invited lecture that proposes a prioritization hierarchy of endurance training measures and focus, based on numerous sources of data, both descriptive and experimental.
Article
Purpose: This study aimed to compare the effects of three different high-intensity training (HIT) models, balanced for total load but differing in training plan progression, on endurance adaptations. Methods: Sixty-three cyclists (peak oxygen uptake (V˙O2peak) 61.3 ± 5.8 mL·kg·min) were randomized to three training groups and instructed to follo...
Article
Full-text available
Purpose: To describe training variations across the annual cycle in Olympic and World Champion endurance athletes, and determine whether these athletes used tapering strategies in line with recommendations in the literature. Methods: Eleven elite XC skiers and biathletes (4 male; 28±1 yr, 85±5 mL x min(-1) x kg(-1) VO2max, 7 female, 25±4 yr, 73±...
Article
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To compare the effects of three 7-week interval training programs varying in work period duration but matched for effort in trained recreational cyclists. Thirty-five cyclists (29 male, 6 female, VO(2peak) 52 ± 6 mL kg/min) were randomized to four training groups with equivalent training the previous 2 months (∼6 h/wk, ∼1.5 int. session/wk). Low on...
Article
Full-text available
In this review we integrate the scientific literature and results-proven practice and outline a novel framework for understanding the training and development of elite long-distance performance. Herein, we describe how fundamental training characteristics and well-known training principles are applied. World-leading track runners (i.e., 5000 and 10...
Article
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Purpose: To investigate differences in athletes' knowledge, beliefs, and training practices during COVID-19 lockdowns with reference to sport classification and sex. This work extends an initial descriptive evaluation focusing on athlete classification. Methods: Athletes (12,526; 66% male; 142 countries) completed an online survey (May-July 2020...
Article
Full-text available
Objectives: Explore training-related knowledge, beliefs and practices of athletes and the influence of COVID-19-related lockdowns. Methods: Athletes [n = 12,526 classified: world-class (13%), international (21%), national (36%), state (24%), and recreational (6%)] completed an online survey (50 d; 17th May to 5th July 2020) exploring their trainin...
Article
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The symptom similarities between training-overload (with or without an Overtraining Syndrome (OTS) diagnosis) and Relative Energy Deficiency in Sport (RED-S) are significant, with both initiating from a hypothalamic–pituitary origin, that can be influenced by low carbohydrate (CHO) and energy availability (EA). In this narrative review we wish to s...
Article
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Despite an increasing amount of research devoted to middle-distance training (herein the 800 and 1500 m events), information regarding the training methodologies of world-class runners is limited. Therefore, the objective of this review was to integrate scientific and best practice literature and outline a novel framework for understanding the trai...
Article
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Profiling physiological attributes is an important role for applied exercise physiologists working with endurance athletes. These attributes are typically assessed in well-rested athletes. However, as has been demonstrated in the literature and supported by field data presented here, the attributes measured during routine physiological-profiling as...
Data
This is data scraped from the public UCI Pro Stats website and reorganized. This file provides raw data for the age of athletes under contract with the 19 Work Tour level professional cycling teams in 2020. Data is divided by team for comparisons and aggregated as a single variable. Age data for top 50 riders by UCI points are also included.
Data
This EXCEL workbook allows up to 7 inputs for the calculation of Critical Power and returns a table of W' segments (Work Above Redline) of the same % of calculated W' but differing in Power and Duration.
Article
Full-text available
Purpose: To quantify possible differences in countermovement jump height across sport disciplines and sex in national-team athletes. Methods: In this cross-sectional study, 588 women (23 [5] y, 66 [8] kg) and 989 men (23 [5] y, 82 [12] kg) from 44 different sport disciplines (including 299 medalists from European Championships, World Championshi...
Article
Full-text available
The purpose of this study was to quantify possible differences in sprint mechanical outputs in soccer according to soccer playing standard, position, age and sex. Sprint tests of 674 male and female players were analysed. Theoretical maximal velocity (v0), horizontal force (F0), horizontal power (Pmax), force-velocity slope (SFV), ratio of force (R...
Article
Full-text available
Despite a voluminous body of research devoted to sprint training, our understanding of the training process leading to world-class sprint performance is limited. The objective of this review is to integrate scientific and best practice literature regarding the training and development of elite sprint performance. Sprint performance is heavily depen...
Data
This is a clean data set derived from the IAAF.org performance database. All athletes in this dataset fulfilled the following criteria: 1) their performances were among the top 500 for the 5000m, 10000m, half-marathon, or marathon during 2) one or more seasons in the period 2014-2018 and 3) they had raced in all 4 distances during a single season....
Presentation
Full-text available
This presentation briefly presents the filtering methods and analyses used to quantify the velocity relationship in elite distance runners competing across a 10-fold range in event duration (13-130min for men, 15 to 150 minutes for women).
Article
Full-text available
Purpose: The main aim of this investigation was to quantify differences in sprint mechanical variables across sports and within each sport. Secondary aims were to quantify sex differences and relationships among the variables. Methods: In this cross-sectional study of elite athletes, 235 women (23 ± 5 y and 65 ± 7 kg) and 431 men (23 ± 4 y and 80 ±...
Article
Full-text available
Purpose: The main aim of this investigation was to quantify differences in sprint mechanical variables across sports and within each sport. Secondary aims were to quantify sex differences and relationships among the variables. Methods: In this cross-sectional study of elite athletes, 235 women (23 ± 5 y and 65 ± 7 kg) and 431 men (23 ± 4 y and 8...
Presentation
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This is a case example/working paper/ presentation building on discussions about the interaction between Anaerobic work capacity and Aerobic power during highly stochastic work periods. A practical approach to training quantification and progression is proposed
Presentation
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This was an interview text in response to interview questions posed by an endurance athlete.
Article
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Purpose: To quantify possible differences in sprint mechanical outputs in handball and basketball players according to playing standard and position. Methods: Sprint tests of 298 male players were analyzed. Theoretical maximal velocity (v0), horizontal force (F0), horizontal power (Pmax), force-velocity slope (SFV), ratio of force (RFmax), and i...
Article
Full-text available
The present study investigated the effects of initial levels of cycling performance, peak oxygen uptake (O2peak) and gross efficiency (GE) on the subsequent adaptations of these variables and their relationship following high-intensity training (HIT) designed to increase O2peak in competitive cyclists. Sixty cyclists (O2peak = 61 ± 6 mL kg-1 min-1)...
Data
This is an EXCEL data file with 4 worksheets: Background data for subject, description of testing conditions and verification, Heart rate response data with summary, and interpretation.
Data
This is an Excel Workbook containing 1) a Critical Power calculator customized for Concept 2 rowing and ski ergo test data (specific power-velocity relationship), 2) 3 medium sized datasets extracted from the Concept 2 World rankings 2002-2018 and customized for teaching applications, and 3) cross-sectional data of all-time performers across distan...
Technical Report
Full-text available
This is an evaluation of the Norwegian Olympic Team performance written and provided on request to the Norwegian Olympia Committee in 2014, after the Sochi Winter Olympics. Critical to the evaluation was the desire by the NOC to contextualize the specific Norwegian results with general international developments.
Method
Full-text available
This is a call for self-reported data from regularly training, healthy people who use the Concept 2 Rowing machine or Ski ergometer.
Article
Introduction: This study aimed to explore the feasibility of an individualized comprehensive lifestyle intervention in cancer patients undergoing curative or palliative chemotherapy. Material and methods: At one cancer center, serving a population of 180,000, 100 consecutive of 161 eligible newly diagnosed cancer patients starting curative or palli...
Presentation
Full-text available
This is the 2nd presentation in a 4 part sequence given to endurance coaches in Vienna, Austria, October 7, 2017
Presentation
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This is the 3rd session in a 4-part sequence given to Austrian endurance coaches, October 7, 2017
Presentation
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This is session 1 of a 4 part sequence presented by invitation in Vienna Austra, October 7, 2017. Audience was Austrian coaches from a variety of endurance sports.
Presentation
Full-text available
This is the 4th session in a 4 part-sequence of lectures given to Austrian endurance coaches in Vienna, Austria, October 7, 2017
Data
This is power data generated from the Concept 2 Online rankings for rowing. Data is based on seasons 2016 and 2017. Times for each percentile have been converted to power using C2´s conversion algorithm. Relative power is based on the 5000m distance (which takes ca 20 min to complete) normalized to 100%. The 99th, 95th, 90th, 75th, and 50th percent...
Article
Full-text available
Maximal aerobic and anaerobic power are crucial performance determinants in most sports disciplines. Numerous studies have published power data from elite athletes over the years, particularly in runners, cyclists, rowers and crosscountry skiers. In this invited review, we define the current " world records " in human upper limits of aerobic and an...
Article
Full-text available
The purpose of this study was to compare physiological responses and perceived exertion among well trained cyclists (n=63) performing three different high intensity interval training (HIIT) prescriptions differing in work bout duration and accumulated duration, but all prescribed with maximal session effort. Data are presented as mean(Standard Devi...
Article
Full-text available
Scientific discovery is about a search for the Truth, for the consistent and predictable in how the universe works. Using a particular method of inquiry, the scientific method, and with acknowledgement of the inherently self-correcting nature of science, scientific inquiry moves forward incrementally to ever closer approximations of the Truth. This...
Presentation
This is an invited lecture that proposes a prioritization hierarchy of endurance training measures and focus, based on numerous sources of data, both descriptive and experimental.
Article
Full-text available
Background: The short form of the International Physical Activity Questionnaire (IPAQ-sf) is a validated questionnaire used to assess physical activity (PA) in healthy adults and commonly used in both apparently healthy adults and cancer patients. However, the IPAQ-sf has not been previously validated in cancer patients undergoing oncologic treatm...
Article
Full-text available
Objective: The study aims were to investigate whether mindfulness predicts improved work ability after a multifactorial vocational rehabilitation program in Norway and to examine the mediating influence of mindfulness in the relationship between personal health factors and changes in work ability in response to the program. Methods: Seventy-four pa...
Article
Full-text available
Objective: The aim of the present study was to compare responders and nonresponders in terms of work ability (WA) to a multidisciplinary vocational rehabilitation program (MVRP) in Norway. Methods: The WA of 74 participants was tested at baseline and in the final week of a 4–6-week intervention. The participants whose WA increased were defined as W...
Article
Full-text available
Background: The peaking period for endurance competition is characterized for a relative increase of the intensity of training, after a longer period of training relatively dominated by lower intensity and higher volume. Objectives: The present study was designed to compare physiological and 10 km performance effects of high intensity training (...
Article
Full-text available
Background: Although carbohydrate is the predominant fuel source supporting high-intensity exercise workloads, the role of fat oxidation, and the degree to which it may be altered by training status, is less certain. Methods: We compared substrate oxidation rates, using indirect calorimetry, during a high-intensity interval training (HIT) session i...
Research
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Two aproaches for peaking at 10k road running races, Race Pace training vs High Intensity Training, showing how different physiological adaptations may lead to the same rate of improvement.
Article
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Objective: Knowledge about determinants of participation in lifestyle interventions in cancer patients undergoing chemotherapy, particularly with palliative intent, remains poor. The objective of the present study was to identify determinants of participating in a 12 month individualized, comprehensive lifestyle intervention, focusing on diet, phy...
Article
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Monitoring soccer players is important for evaluating individual and collective team behavior during training sessions and games, in addition to informing recovery strategies and load management. Modern micro-technology allows assessment of physical, technical and tactical performance parameters in " real-world " conditions. However, physical testi...
Article
Full-text available
The aims of the present study were to compare the effects of 1) training at 90 and 100% sprint velocity and 2) supervised versus unsupervised sprint training on soccer-specific physical performance in junior soccer players. Young, male soccer players (17 ±1 yr, 71 ±10 kg, 180 ±6 cm) were randomly assigned to four different treatment conditions over...
Article
Full-text available
A review of published studies monitoring sprint performance reveals considerable variation in start distance behind the initial timing gate. The aim of the present study was to generate correction factors across varying flying start distances used in sprint testing with photocells. Forty-four well-trained junior soccer players (age 18.2 ±1.0 yr, he...
Article
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Purpose: The aim of this study was to generate updated Olympic medal benchmarks for VO2max in winter endurance disciplines, examine possible differences in VO2max between medalists and non-medalists, and calculate gender difference in VO2max based on a homogeneous subset of world-leading endurance athletes. Methods: We identified 111 athletes wh...
Article
Full-text available
One year of training data from 8 elite orienteers were divided into a transition phase (TP), general preparatory phase (GPP), specific preparatory phase (SPP), and competition phase (CP). Average weekly training volume and frequency, hours at different intensities (zones 1–3), cross-training, running, orienteering, interval training, continuous tra...
Article
Full-text available
The aims of the present study were to compare the effects of 1) training at 90 and 100% sprint velocity and 2) supervised versus unsupervised sprint training on soccer-specific physical performance in junior soccer players. Young, male soccer players (17 +/-1 yr, 71 +/-10 kg, 180 +/-6 cm) were randomly assigned to four different treatment condition...
Article
Full-text available
The aim of the present study was to investigate the effect of training at an intensity eliciting 90% of maximal sprinting speed on maximal and repeated-sprint performance in soccer. It was hypothesised that sprint training at 90% of maximal velocity would improve soccer-related sprinting. Twenty-two junior club-level male and female soccer players...
Article
Full-text available
Aim. The purpose of this study was to quantify differences in anthropometrical and physical characteristics according to playing position and competitive level in male elite handball. Methods. 176 national team and 1st division players (age 23 ±4 yr, body mass 89 ±11 kg, body height 188 ±5 cm) participated in the study. All participants were tested...
Article
The aim of the present study was to investigate the effect of training at an intensity eliciting 90% of maximal sprinting speed on maximal and repeated-sprint performance in soccer. It was hypothesized that sprint training at 90% of maximal velocity would improve soccer-related sprinting. Twenty-two junior club-level male and female soccer players...
Article
Full-text available
Human upper performance limits in the 100-m sprint remain the subject of much debate. The aim of this commentary is to highlight the vulnerabilities of prognoses from historical trends by shedding light on the mechanical and physiological limitations associated with human sprint performance. Several conditions work against the athlete with increasi...
Article
Full-text available
Purpose: To quantify VO2max among female competitive soccer players as a function of performance level, field position, and age. In addition, the evolution of VO2max among world-class players over an 18-y period was quantified. Methods: Female players (N = 199, 22 ± 4 y, 63 ± 6 kg, height 169 ± 6 cm), including an Olympic winning squad, were tes...