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Short-Term Effects of Midseason Coach Turnover on Team Performance in Soccer
Authors:Anne-Line Balduck  Marc Buelens  Renaat Philippaerts
Institution:1. Department of Movement and Sports Sciences , Ghent University, Department of Management, Innovation, and Entrepreneurship;2. Department of Management, Innovation, and Entrepreneurship , Ghent University;3. Department of People and Organization , Vlerick Leuven Ghent Management School;4. Department of Movement and Sports Sciences , Ghent University
Abstract:Abstract

Tests were made with the hand carrying weights of 0.2, 3.1, and 16.6 kg. during a 72° horizontal adductive arm swing of maximal speed timed at 12° intervals. Five practice swings and 20 trials, under each condition, were performed by 60 male subjects. Reliability coefficients were high. The first 24° of movement exhibited declining acceleration, followed by linearly increasing acceleration for the 24°—60° interval and deceleration for the next 12°. Compared with static strength in the movement position, action strength computed from acceleration was much greater with the heaviest weight and considerably less with the light weights. The correlation between static strength and speed was quite low for the normal arm swing but increased with added weight, becoming r = .76 for the heaviest. There was little correlation of individual differences in speed between different phases of movement or between movements with light and heavy weights. Specificity was high, although correlations were made for attenuation.
Keywords:changing coach  performance change  replacement  team sports
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