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tennis forehand kinematics change as post impact ball speed is altered

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Tennis forehand kinematics change as post-impact ball speed ...

Between the aforementioned peak joint angles and ball impact, dominant-side peak angular velocities increased as ball speed increased from slow to fast: peak wrist flexion (118%), elbow flexion (176%), trunk rotation (99%), hip extension (143%), knee extension (56%), and plantarflexion (87%). Most kinematic variables changed as forehand ball speed changed; however, some variables changed more than others, indicating that range of motion and angular velocity for some joints may be more ...

Tennis forehand kinematics change as post-impact ball speed ...

Most kinematic variables changed as forehand ball speed changed; however, some variables changed more than others, indicating that range of motion and angular velocity for some joints may be more closely related to post-impact ball speed than for other joints.

Tennis forehand kinematics change as post-impact ball speed ...

Seeley et al. [21] revealed that in tennis forehand stroke the peak joint angles of hip flexion, knee flexion and ankle dorsiflexion prior to ball impact increased as post-impact ball speed ...

Tennis forehand kinematics change as post-impact ball speed ...

High-speed video was used to measure three-dimensional motion for 12 highly skilled tennis players who performed forehands at three different post-impact ball speeds: fast (42.7 +/- 3.8 m/s), medium (32.1 +/- 2.9 m/s), and slow (21.4 +/- 2.0 m/s). Several dominant-side peak joint angles (prior to ball impact) increased as post-impact ball speed increased from slow to fast: wrist extension (16%), trunk rotation (28%), hip flexion (38%), knee flexion (27%), and dorsiflexion (5%).

(PDF) Effect of motor imagery training on tennis service ...

The objective of the study was to analyse the effect of motor imagery training on tennis service performance among tennis athletes. Participants were twenty-eight young male tennis players ...

Acute effects of dynamic stretching and post-activation ...

CMJ and HS did not change post-match (P = 0.210 and P = 0.881, respectively). ... 20-m sprint, tennis serve speed and accuracy tests were performed before (immediately after TWU or DWU) during (30 ...

(PDF) Foot Pronation Contributes to Altered Lower Extremity ...

This study presents an investigation of the changes in foot posture, joint kinematics, joint moments and joint contact forces in the lower extremity following a 5k treadmill run. A relationship ...

Publications & Media – Motor Control & Learning | ETH Zurich

At 6-month post intervention the combined exergame and regular training sessions revealed: higher breathing frequency, heart rate (all ps ≤ 0.001) and lower skin conductance levels (p = 0.001) during exergaming; additional benefits in the point of contact and kinetic chain elements of the tennis forehand and backhand technique (all ps ≤ 0.001); negative impact on the shot preparation and the follow-through elements (all ps ≤ 0.017); higher ball skills (as part of the gross motor skills ...

Single and dual task tests of gait speed are equivalent in ...

Of note, both in animals and humans, gait parameters change as a function of speed even under "normal" conditions [42]; for this reason, it was challenging to decide which variables to retain in ...

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