搜索结果: 1-15 共查到“体育科学 velocity”相关记录30条 . 查询时间(0.119 秒)
Kinematic Mechanisms of How Power Training Improves Healthy Old Adults’ Gait Velocity
WALKING MUSCLE AGING BIOMECHANICS EXERCISE
2018/4/24
Introduction Slow gait predicts many adverse clinical outcomes in old adults, but the mechanisms of how power training can minimize the age-related loss of gait velocity is unclear. We examined the ef...
Muscle contraction velocity,strength and power output changes following different degrees of hypohydration in competitive olympic combat sports
Hydration Urine osmolality Bench press Taekwondo Olympic wrestling and boxing
2016/5/16
Background:It is habitual for combat sports athletes to lose weight rapidly to get into a lower weight class. Fluid restriction, dehydration by sweating (sauna or exercise) and the use of diuretics ar...
Critical Velocity and Anaerobic Paddling Capacity Determined by Different Mathematical Models and Number of Predictive Trials in Canoe Slalom
Canoe slalom critical velocity sports performance aerobic parameter anaerobic parameter elite athletes
2015/5/26
The purpose of this study was to analyze if different combinations of trials as well as mathematical models can modify the aerobic and anaerobic estimates from critical velocity protocol applied in ca...
Development and Validity of a Scale of Perception of Velocity in Resistance Exercise
RPE rating perceived velocity strength training
2015/5/25
This aims of this study were twofold; 1) to development a new
scale of perceived velocity in the bench press exercise and 2) to
examine the scales concurrent validity. Twenty one physically
acti...
Effects of A 6-Week Junior Tennis Conditioning Program on Service Velocity
tennis strength flexibility service performance
2015/5/15
This study examined the effects of a 6-week strength-training program on serve velocity in youth tennis players. Thirty competitive healthy and nationally ranked male junior tennis players (13 years o...
Effects of run-up velocity on performance, kinematics, and energy exchanges in the pole vault
Sports biomechanics kinematics
2015/5/11
This study examined the effect of run-up velocity on the peak
height achieved by the athlete in the pole vault and on the correponding changes in the athlete’s kinematics and energy exchanges.
Influence Of Opposition On Ball Velocity In The Handball Jump Throw
Team handball jump throw ball velocity defence
2015/5/7
The purpose of the present study was to investigate the influence of different degrees of opposition on ball velocity in the jump throw in elite, amateur and adolescent team handball players. Thus, on...
A Low-Cost Contact System to Assess Load Displacement Velocity in a Resistance Training Machine
Velocity testing strength training speed events
2015/5/7
This study sought to determine the validity of a new system for assessing the displacement and average velocity within machine-based resistance training exercise using the Chronojump System. The new d...
Inter-Joint Coordination in Producing Kicking Velocity of Taekwondo Kicks
Taekwondo kicks kinematics inter-joint coordination
2015/5/6
The purpose of this study was to investigate joint kinematics of the kicking leg in Taekwondo and to examine the role of inter-joint coordination of the leg in producing the kicking velocity. A new in...
A Load-Velocity Relationship for Men and Women in Overhead Throwing Performance
A Load-Velocity Relationship Men and Women Overhead Throwing Performance
2015/5/5
TIn many movements, resistance (load) and velocity are inversely related to each other (Schilling et al., 2008). This relationship is often ascribed to skeletal muscle properties. Hill, 1938 described...
The Influence of Ball Velocity and Court Illumination on Reaction Time for Tennis Volley
premotor reaction time motor reaction time electromyogram tennis
2015/5/4
The he purpose of this study is to examine the effects of ball velocity, court illumination, and volley type on the reaction time (RT) of a tennis athlete for a volley stroke. Eights cases with two di...
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...
Can the be used to estimate critical velocity in young competitive swimmers?
Training evaluation aerobic ability critical power
2015/4/21
The aims of the present study were to assess critical velocity using the swimmer curriculum in front crawl events and to compare critical velocity to the velocity corresponding to a 4 mmol·l-1 of bloo...
Predicting the Intra-Cyclic Variation of the Velocity of the Centre of Mass from Segmental Velocities in Butterfly Stroke: A Pilot Study
Swimming body's velocity fluctuation feet's velocity hand's velocity
2015/4/8
The purpose of this study was to analyze the relationship between the intra-cycle variation of the horizontal velocity of displacement of the center of mass (dV), the hand's and feet's velocity, as we...
Effects of gender on stroke rates, critical speed and velocity of a 30-min swim in young swimmers
Swimming male female aerobic capacity
2015/4/3
Our objective was to analyze the effect of gender on the relationship between stroke rates corresponding to critical speed
(SRCS) and maximal speed of 30 min (SRS30) in young swimmers.