This study aimed to identify The Effect of competition period upon the physical abilities (speed, strength, agility, flexibility, sustainability performance, endurance speed, and general endurance) and skills abilities (controlling the ball, running with the ball, scoring, heading the ball, throws the seam slider, passing, kicking the ball) of football players in the West Bank. The sample of the study consisted of (30) players from (5) clubs using the intentional way which was distributed over (3) provinces and the participants in the general league championship for the Premier League clubs for the football season for the year 2013/2014 in the West Bank. The average age was (23.26) of standard deviation (2.645).
Descriptive method named one of the patterns of causal comparative studies attic (quasi-experimental) to solve the problem of search, in order to achieve objectives of the study was conducted (7) Physical tests , and (7) skills tests in the tow before and after, measurement before entering into competition period after measuring after ending competition period, the program SPSS was used to create descriptive statistics and (test T.test) for determining the difference between the measurement before and after competitions in levels of statistical significance.
The results showed statistically significant differences at the significance level (a ≤ 0.05) between after and before measuring in all variables of the study of physical capacity and skill - with the exception of speed - foe the use before measuring, the study shows the absence of a training strategy taking into account the different periods of the sports season (preparing and competitions and in transition) and focus on the competition, only without the other.
The researcher recommended a training plan taking into account the different periods of the sports season, and well prepared physically and Skill in the preparation and organization of the player and access to the level of competition (Alforma) And try and maintain stability during the period of competition, and strive to provide the necessary material support to the clubs by selecting the appropriate budgets that meet the regularity of the sports season in its three periods in a good scientific shape