Table 1. Specification and description of the temporal parameters in fin swimming turn technique, recorded and analyzed during the research. Total Turn Time (Figure 2. I-VII) Swim-in Time (Figure 2. I-II) Rotation Time (Figure 2. II-III) Time period from the moment when the hip joints swim trough the point placed 5m from the wall before turning, till the moment when the hip joints swim trough the point placed 5m from the wall after turning. Time period from the moment when the hip joints swim trough the point placed 5m from the wall before turning, till the moment of the turning initiation (downward movement of the shoulder). Time period from the moment of the turning initiation, till the moment when the turning is finished (first moment of the feet contact with the wall). Wall Contact Time (Figure 2. III-V) Push-off Time (Figure 2. IV-V) Glide Time (Figure 2. V-VI) Time period from the moment of the first feet contact with the wall, till the moment when the feet lost contact with the wall. Time period between the moment when the hip joints forward displacement is initiated after contact with the wall, and the moment when the feet lost contact with the wall. Time period between the moment when the feet lost contact with the wall, and the moment of the knee joints extension. Commencement of Stroking Time (Figure 2. VI-VII) Time period between the first propulsive movements initiation (the knee joints extension), and the moment when the hip joints swim through the point placed 5 m from the wall after turning. Time In (Figure 2. 1-2) Time Out (Figure 2. 2-3) Turn Time (Figure 2. 1-3) Time period from the moment when the head moves through the horizontal line initializing the turning, till the moment of the first feet contact with the wall. Time period from the moment of the first feet contact with the wall, till the moment when the head moves back to the horizontal line after the turning. The sum of the Time-in and time-out.