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Validity and reliability of impact forces from a commercially instrumented water-filled punching bag
Springer Science and Business Media LLC - Tập 25 - Trang 1-5 - 2022
Shelley N. Diewald, Matt R. Cross, Jono Neville, John B. Cronin
Measuring striking forces is important to provide actionable insight for training and performance enhancement for combat sport athletes. Recent technology may provide a low-cost solution to an otherwise complicated kinetic assessment. The aim was to assess the reliability and validity of a water-filled training bag and integrated sensor for measuring peak impact force. A pendulum design was used t...... hiện toàn bộ
Validation of a multi-camera videogrammetry approach for quantifying helmet impact velocity in football
Springer Science and Business Media LLC - Tập 26 - Trang 1-8 - 2023
Danielle L. Gyemi, Ron Jadischke, David M. Andrews
This study presents the validation of a multi-camera videogrammetry approach for measuring football helmet impact velocities, wherein the effect of camera angle, camera distance and impact speed were assessed. Helmet-to-ground impacts were simulated within two zones on a field using free fall drop tests of a helmeted head and neck assembly at heights of 1.04 m (slow: 4.52 m/s) and 1.83 m (fast: 5....... hiện toàn bộ
Loading and structural stiffness of tandem bicycle frames
Springer Science and Business Media LLC - Tập 27 Số 1 - 2024
Digby Symons
AbstractTandem bicycles are used for all para-cycling events for visually impaired athletes. Tandems are structurally more challenging to design than solo bicycles: they must resist higher loading over a longer wheelbase, yet must still fit between the legs of the riders. Despite this, there is limited published work on tandem design. This paper presents a method f...... hiện toàn bộ
Kinematics and kinetics of handcycling propulsion at increasing workloads in able-bodied subjects
Springer Science and Business Media LLC - Tập 21 - Trang 283-294 - 2018
Oliver J. Quittmann, Joshua Meskemper, Thomas Abel, Kirsten Albracht, Tina Foitschik, Sandra Rojas-Vega, Heiko K. Strüder
In Paralympic sports, biomechanical optimisation of movements and equipment seems to be promising for improving performance. In handcycling, information about the biomechanics of this sport is mainly provided by case studies. The aim of the current study was (1) to examine changes in handcycling propulsion kinematics and kinetics due to increasing workloads and (2) identify parameters that are ass...... hiện toàn bộ
Sprint diagnostic with GPS and inertial sensor fusion
Springer Science and Business Media LLC - Tập 21 Số 4 - Trang 441-451 - 2018
Mertens, J. C., Boschmann, A., Schmidt, M., Plessl, C.
The purpose of this research was to develop a wearable, low-cost prototype based on real-time kinematic GPS and a microelectromechanical inertial measurement unit to measure the sprinting velocity of an athlete. The software package RTKLIB was used to calculate the RTK-GPS positions and different Kalman filters were implemented to provide a loosely coupled sensor fusion. With this setup, we perfor...... hiện toàn bộ
Evaluating objective measures of impairment to trunk strength and control for cross-country sit skiing
Springer Science and Business Media LLC - Tập 24 - Trang 1-12 - 2021
Valeria Rosso, Vesa Linnamo, Yves Vanlandewijck, Walter Rapp, Benedikt Fasel, Magdalena Karczewska-Lindinger, Stefan Lindinger, Laura Gastaldi
In Paralympic cross-country sit skiing, athlete classification is performed by an expert panel, so it may be affected by subjectivity. An evidence-based classification is required, in which objective measures of impairment must be identified. The purposes of this study were: (i) to evaluate the reliability of 5 trunk strength measures and 18 trunk control measures developed for the purposes of cla...... hiện toàn bộ
Editorial
Springer Science and Business Media LLC - Tập 10 - Trang 1-1 - 2007
M. J. Carré
A simple mechanical model for simulating cross-country skiing, skating technique
Springer Science and Business Media LLC - Tập 19 - Trang 91-104 - 2015
John Bruzzo, A. L. Schwab, Antti Valkeapää, Aki Mikkola, Olli Ohtonen, Vesa Linnamo
The role of simulation models in sport disciplines has become relevant lately due to the multiple advantages that they may offer sports teams, coaches and practitioners. This paper develops and presents a simple three-dimensional multibody dynamic model of a cross-country skier, modeling a single propulsion phase to obtain the kinetic parameters involved in the movement. A professional Olympic-lev...... hiện toàn bộ
An investigation into the power point in tennis
Springer Science and Business Media LLC - Tập 16 - Trang 173-180 - 2013
Simon Choppin
This paper investigates the nature of the power point in tennis. A series of static racket impacts and a polynomial fit were used to simulate four different racket shots with increasing amounts of angular velocity—identifying the true ‘power point’ for each shot. A rigid body model was used to define the ‘ideal point’ for each shot—the impact point which theoretically yields maximum outbound ball ...... hiện toàn bộ
Special issue on winter sports
Springer Science and Business Media LLC - Tập 16 - Trang 195-196 - 2013
Peter Federolf, Martin Strangwood
Tổng số: 388   
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