搜索结果: 46-60 共查到“知识库 运动生物力学”相关记录288条 . 查询时间(0.625 秒)
Acceleration Kinematics in Cricketers: Implications for Performance in the Field
Biomechanics cricket fielding step length sprinting swing leg flexion
2015/5/21
Cricket fielding often involves maximal acceleration to retrieve the ball. There has been no analysis of acceleration specific to cricketers, or for players who field primarily in the infield (closer ...
A Three-Dimensional Kinematic and Kinetic Study of the College-Level Female Softball Swing
Softball Sport Biomechanics Softball Bat Softball Swing Kinematics Kinetics
2015/5/21
This paper quantifies and discusses the three-dimensional kinematic and kinetic characteristics of the female softball swing as performed by fourteen female collegiate amateur subjects. The analyses w...
Optimum Projection Angle for Attaining Maximum Distance in a Rugby Place Kick
Biomechanics kinematics projectile
2015/5/21
This study investigated the effect of projection angle on the distance attained in a rugby place kick. A male rugby player performed 49 maximum-effort kicks using projection angles of between 20 and 5...
A Computational Fluid Dynamics Analysis of Hydrodynamic Force Acting on a Swimmer’S Hand in a Swimming Competition
Computational fluid dynamics swimming drag thrust thrust efficiency stroke analysis
2015/5/19
A stroke-analysis system based on a CFD (Computational Fluid Dynamics) simulation has been developed to evaluate the hydrodynamic forces acting on a swimmer’s hand. Using the present stroke-analysis s...
Kinematical Comparison of the 200 m Backstroke Turns between National and Regional Level Swimmers
Swimming biomechanics motor skills repeated measures
2015/5/19
The aims of this investigation were to determine the evolution of selected turn variables during competitive backstroke races and to compare these kinematic variables between two different levels of s...
Comparison of Rowing on a Concept 2 Stationary and Dynamic Ergometer
Biomechanics physiological response stroke rate efficiency cadence
2015/5/7
Biomechanical and physiological responses to rowing 1000 m at a power output equivalent to a 2000 m race were compared in 34 collegiate rowers (17 women, 17 men) rowing on a stationary and dynamic Con...
Selective Activation of the Rectus Abdominis Muscle During Low-Intensity and Fatiguing Tasks
Motor control electromyography biomechanics exercise
2015/5/7
In order to understand the potential selective activation of the rectus abdominis muscle, we conducted two experiments. In the first, subjects performed two controlled isometric exercises: the curl up...
Potential for Non-Contact ACL Injury Between Step-Close-Jump and Hop-Jump Tasks
Stop-jump inverse dynamics shear force
2015/5/4
This study aimed to compare the kinematics and kinetics during the landing of hop-jump and step-close-jump movements in order to provide further inferring that the potential risk of ACL injuries. Elev...
The Influence of Velocity Overshoot Movement Artifact on Isokinetic Knee Extension Tests
biomechanics dynamometry constant velocity phases of movement
2015/5/4
Exercise on an isokinetic device involves three distinct movement phases: acceleration, constant velocity, and deceleration. Inherent in these phases are unique occurrences that may confound test data...
Comparison of Two Variants Of a Kata Technique (Unsu): The Neuromechanical Point of View
Biomechanics electromyography technique analysis karate
2015/4/30
The objective of this work was to characterize from a neuromechanical point of view a jump performed within the sequence of Kata Unsu in International top level karateka. A modified jumping technique ...
Bilateral ground reaction forces and joint moments for lateral sidestepping and crossover stepping tasks
Badminton movement biomechanics injury
2015/4/21
Racquet sports have high levels of joint injuries suggesting the joint loads during play may be excessive. Sports such as badminton employ lateral sidestepping (SS) and crossover stepping (XS) movemen...
Mechanical Energy and Propulsion in Ergometer Double Poling by Cross-country Skiers
CROSS-COUNTRY SKIING DYNAMICS MECHANICAL WORK BIOMECHANICS LOCOMOTION
2017/4/20
This study aims to investigate fluctuations in total mechanical energy of the body (Ebody) in relation to external ergometer work (Werg) during the poling and recovery phases of simulated double-polin...
The article “MRS evidence of adequate O2 supply in human skeletal muscle at the onset of exercise” (7) concluded that metabolic inertia—not O2 supply—is the major factor controlling the kinetics of V˙...
Exercise Modality Effect on Bioenergetical Performance at VO2max Intensity
EXERCISE MODES TIME LIMIT OXYGEN UPTAKE KINETICS ENERGY EXPENDITURE
2017/4/19
Purpose: A bioenergetical analysis of different exercise modes near maximal oxygen consumption (V˙O2max) intensity is scarce, hampering the prescription of training to enhance performance. We assessed...
Head Impact Exposure and Neurologic Function of Youth Football Players
BIOMECHANICS CONCUSSION INJURY RISK PEDIATRIC
2017/4/19
Football players are subjected to repetitive impacts that may lead to brain injury and neurologic dysfunction. Knowledge about head impact exposure (HIE) and consequent neurologic function among youth...
