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Non-linear Pedagogy in Handball: the Influence of Drill Constraints

The manipulation of drill constraints facilitates the performance of certain sports behaviours and according to non-linear pedagogy is the main tool with which coaches can accomplish their proposed objectives. The objective of this paper was to ascertain the influence exercised by certain constraints (no-bounce rule, compulsory passing and receiving while running and making at least five passes to be able to score) in handball players’ offensive behaviours. The study participants were the 14 members of a men’s U-15 team with ages ranging between 14 and 15 years ( M = 14.6 years, SD = 0.4). Using a specific/nomothetic/multidimensional technique design, 24 matches were studied in a modified game situation in the course of six training sessions to which the constraints studied were applied. Moreover, the use of an individual defensive system was obligatory. An ad hoc observation instrument was designed and was input into the Dartfish 5.5 program, which was used as the recording instrument; intra- and inter-observer concordance and sequential delay analysis was performed using the GSEQ 5.1 program. The HOISAN 1.2 program was used for the polar coordinate analysis, which demonstrated the emergence of different behaviours in order to retain ball possession, progress towards the opponent’s goal and finish the attack according to the constraints applied. These findings may indicate the most suitable drill constraints for accomplishing the proposed objectives and avoiding the selection of drills on the basis of subjective criteria.