Of, in het engels. Professionals are not good busy ! ! !
http://journals.lww.com/nsca-jscr/Abstract/publishahead/A_Profile_of_the_Resistance_Training_Practices_of.99617.aspx Abstract
Reverter-Masia, J, Legaz-Arrese, A, Munguia-Izquierdo, D, Barbany, JR, Serrano-Ostariz, E. A profile of the resistance training practices of elite Spanish club teams. J Strength Cond Res 00(0): 000-000, 2009
This study describes the results of a survey of the resistance training practices of the following Spanish sports teams: soccer and basketball professional leagues, and top-division leagues for handball, volleyball, indoor soccer, and field hockey. The response rate was 81.8% (77 of 94). This survey examines:
a) strength and conditioning (S&C) coach profiles,
b) resistance training exercises,
c) resistance training load,
d) repetition velocity, and
e) training leading to muscle failure.
The results indicate that 80.5% of coaches held a university degree, with 22% holding a master's degrees, 40% held National Federation certification, and none held Strength and Conditioning Specialist certification. Respondents relied on nonscientific sources of information to develop their conditioning programs. 58% of the S&C coaches were hired full time, with 18% performing the duties of a first trainer. Many S&C coaches did not use weightlifting (54%), full squat (51%), load squat jump (35%), or bench press throw (100%) exercises. Thirty-eight percent of respondents did not control the load intensity or did not use a load of 50-90% of 1 repetition maximum. For these load intensities, 70% did not perform the combination of maximum repetition velocity and nonmuscular failure. More significant deficiencies in the fundamental principles of resistance training were observed in indoor soccer, soccer, field hockey, and among lower performing handball and basketball teams. These results indicate that the profile of the S&C coaches in the Spanish teams is insufficient for an optimal application of resistance training. Spanish S&C coaches should therefore take advantage of advances made through scientific research in the area of strength and conditioning by acquiring master's degrees and specific certificates and consulting peer-reviewer journals.
PRACTICAL APPLICATIONS
This study reveals important deficiencies in the resistance
training programs of elite sports teams. These results should
provoke reflection of the S&C coaches of these teams and
lead them to question their methods of work and to justify the
need for scientific and specific education. In the same way,
this work should serve as feedback to the scientific community
and to the S&C coaches of other teams on a variety of
issues:
a) knowledge of the resistance training used by sports
teams with success in European competitions;
b) the need to resolve numerous questions on the optimum resistance
training in these sports;
c) the need to improve strategies
for disseminating scientific knowledge to the S&C coaches
involved in the development of elite athletes; and (d) the need
to identify a productive model for accomplishing similar work
in another countries, sports, and institutions, and for determining
the needed changes in the teams analyzed in this study.
As a consequence, a great variety of single-joint exercises
are used by indoor and outdoor soccer teams and especially
basketball teams. In fact, leg extension was the exercise most
used by S&C coaches of indoor soccer and soccer.