Introduction: Shackled maneuver was poorly studied in specific literature despite being a technique used every
day for security and police forces. The use of new technologies had reported important benefits in learning process and
could improve shackled learning process. Therefore, the objectives of the present research were: (i) to analyze the effect
of an audiovisual training on the efficiency in shackled technique in three different stress situations and (ii) to study the
week point in the shackled maneuver to know how to improve the audiovisual training. Methods: Technical procedures in
shackle techniques in 3 different situations of 26 male soldiers were analyzed after an audiovisual session. The situations
were normal, alert and danger. All the shackle interventions were filmed by a video camera and were analyzed later.
Shackle maneuver was divided in approach to the subject, subject control, placing the first shackle, limb immobilization,
placing the second shackle, frisk and transfer. Every part of the shackle maneuver was evaluated with 10, 5 or 0 point.
Results: Maneuver efficiency decreased with the stress. There was significant difference in the placement of the second
phase shackle between the normal and alert situations and in all the situations the limb immobilization phase obtained the
lower values. Furthermore, the execution time was lower in normal (40.30 s) than in alert (120.08 s) and danger situations
(180.36 s). Conclusion: A short audiovisual training was enough to learn the proper shackled procedure in non
experimented soldiers with a low technical level in the limb immobilization phase and differences between the stress
situation in the placing the second shackle phase. Also, the increase in stress caused an increase in the maneuver time, and
an increase in number of the video reproductions.