Conditioning exercises in ski jumping: biomechanical relationship of squat jumps, imitation jumps, and hill jumps

Kinematics and Kinetics of Squats, Drop Jumps and Imitation Jumps of Ski Jumpers

Squats, drop jumps, and imitation jumps are commonly used training exercises in ski jumping to enhance maximum force, explosive force, and sport-specific skills. The purpose of this study was to evaluate the kinetics and kinematics of training exercises in ski jumping and to find objective parameters in training exercises that most correlate with the competition performance of ski jumpers. To t...

Good Jumps, Bad Jumps, and Conditional Equity Premium∗

We uncover significant effects of jump risk on conditional equity premium. Realized volatility due to negative or “bad” (positive or “good”) jumps in stock market prices predicts a rising (falling) near-term equity premium. The forecasting power of signed jump risk measures remains statistically significant even when we control for variance risk premium that Drechsler and Yaron (2011) attribute...

The Relationship between Selected Kinematic Parameters and Length of Jumps of the Ski-flying Competition

The objective of this study was to analyse selected kinematic parameters (time of flying, in-run velocity, take-off velocity, out-run velocity, height of flying at 17 m, height of flying at 75 m, height of flying at 120 m, aerodynamic index at 17 m, aerodynamic index at 75 m, aerodynamic index at 120 m) of the best world-class ski jumpers participating in the two final individual competitions (...

Biomechanical Aspects of Training Means Selection in Track Andfield Jumps

Rank Jumps in Codimension