Blar i Artikler / Articles på emneord "kinematics"
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50 m freestyle in 21, 22 and 23 s: What differentiates the speed curve of world-class and elite male swimmers?
(Peer reviewed; Journal article, 2021)We examined the association between 50 m freestyle performance (50FS) and average speed (AS), peak speed (PS), minimum speed (MS) and intracyclic speed variation (ISV) and compared the speed curves from swimmers with ... -
A holistic approach to study the temporal variability in gait
(Journal article; Peer reviewed, 2012-04)Movement variability has become an important field of research and has been studied to gain a better understanding of the neuro-muscular control of human movements. In addition to studies investigating “amplitude variability” ... -
A new training assessment method for alpine ski racing: Estimating center of mass trajectory by fusing inertial sensors with periodically available position anchor points
(Journal article; Peer reviewed, 2018)In this study we present and validate a method to correct velocity and position drift for inertial sensor-based measurements in the context of alpine ski racing. Magnets were placed at each gate and their position determined ... -
Application of principal component analysis in clinical gait research: Identification of systematic differences between healthy and medial knee-osteoarthritic gait
(Journal article; Peer reviewed, 2013-09)For a successful completion of a movement task the motor control system has to observe a multitude of internal constraints that govern the coordination of its segments. The purpose of this study was to apply principal ... -
Biomechanical analysis of defensive cutting actions during game situations: six cases in collegiate soccer competitions
(Journal article; Peer reviewed, 2015-07-10)The strengths of interpersonal dyads formed by the attacker and defender in one-on-one situations are crucial for performance in team ball sports such as soccer. The purpose of this study was to analyze the kinematics of ... -
Biomechanics of supination ankle sprain : a case report of an accidental injury event in the laboratory
(Peer reviewed; Journal article, 2009-02-02)Ankle sprain is the most common injury in sports,5 but the mechanism of injury is not clear. Injury mechanisms can be studied through many different approaches.9 Over the years, ankle kinematics has been studied during ... -
The effect of foot setting on kinematic and kinetic skiing parameters during giant slalom: A single subject study on a Paralympic gold medalist sit skier
(Peer reviewed; Journal article, 2020)Objectives: Aim was to study the effect of monoski foot adjustment on kinematic and kinetic skiing parameters expressing sit skier’s technique. Design: Independent variable was skier position with respect to bindings, ... -
Front crawl body roll characteristics in a Paralympic medallist and national level swimmers with unilateral arm amputation
(Peer reviewed; Journal article, 2019)The purpose of this study was to establish the asymmetry and body wave characteristics related to shoulder, hip, knee, and ankle roll in unilateral arm amputee swimmers. Three unilateral arm amputee swimmers, including one ... -
Front Crawl Is More Efficient and Has Smaller Active Drag Than Backstroke Swimming: Kinematic and Kinetic Comparison Between the Two Techniques at the Same Swimming Speeds
(Peer reviewed; Journal article, 2020)The purpose of this study was to investigate differences in Froude efficiency (ηF ) and active drag (DA) between front crawl and backstroke at the same speed. ηF was investigated by the three-dimensional (3D) motion analysis ... -
The gold rush in para swimming: changes in the speed curve of a visually impaired world and paralympic champion–a case study
(Peer reviewed; Journal article, 2023)This case study examined the association between 50 m freestyle and speed curve parameters of a world-class Paralympic swimmer and analysed the changes in speed curves and their frequency components across her performance ... -
Key Factors Related to Short Course 100 m Breaststroke Performance
(Peer reviewed; Journal article, 2020)Background and aim: To identify kinematic variables related to short course 100 m breaststroke performance. Methods: An automatic race analysis system was utilized to obtain start (0–15 m), turn (5 m before the wall until ... -
Kinematic adaptations to a variable stiffness shoe: mechanisms for reducing joint loading
(Journal article; Peer reviewed, 2012)A recently described variable-stiffness shoe has been shown to reduce the adduction moment and pain in patients with medial-compartment knee osteoarthritis. The mechanism associated with how this device modifies overall ... -
Metabolic and kinematic responses while walking and running on a motorised and a curved non-motorised treadmill
(Journal article; Peer reviewed, 2018)The purpose of this study was to assess metabolic and kinematic parameters (contact and flight time, step length and frequency) while walking at the preferred speed (1.44 ± 0.22 m · s−1) and while performing an incremental ... -
Quantifying instantaneous performance in alpine ski racing
(Journal article; Peer reviewed, 2012-05-24)Alpine ski racing is a popular sport in many countries and a lot of research has gone into optimising athlete performance. Two factors influence athlete performance in a ski race: speed and the chosen path between the ... -
Separating movement and gravity components in an acceleration signal and implications for the assessment of human daily physical activity
(Journal article; Peer reviewed, 2013-04-23)Human body acceleration is often used as an indicator of daily physical activity in epidemiological research. Raw acceleration signals contain three basic components: movement, gravity, and noise. Separation of these becomes ... -
Sex-based differences in sub-technique selection during an international classical cross-country skiing competition
(Peer reviewed; Journal article, 2020)The purpose of this study was to compare speed, sub-technique selection and temporal patterns between world-class male and female cross-country (XC) skiers and to examine the combined associations of sex and speed on ... -
The effect of different global navigation satellite system methods on positioning accuracy in elite alpine skiing
(Journal article; Peer reviewed, 2014-10-03)In sport science, Global Navigation Satellite Systems (GNSS) are frequently applied to capture athletes’ position, velocity and acceleration. Application of GNSS includes a large range of different GNSS technologies and ... -
Trunk, pelvic and hip kinematics during the Stork test in pregnant women with pelvic girdle pain, asymptomatic pregnant and non-pregnant women
(Peer reviewed; Journal article, 2020)Background: Pelvic girdle pain is prevalent during pregnancy, and women affected report weight-bearing activities to be their main disability. The Stork test is a commonly used single-leg-stance test. As clinicians report ... -
What is the optimal classical style sub-technique during uphill roller skiing in elite male cross-country skiers?
(Peer reviewed; Journal article, 2023)Purpose: To compare performance, physiological and biomechanical responses between double poling (DP) and diagonal stride (DIA) during treadmill roller skiing in elite male cross-country skiers. Method: Twelve skiers ...