# Effect of a Sensorimotor Training Program for Aerial Maneuvers in Junior Surfers
## 2 Materials and Methods
### Sensorimotor Training Program
\begin{table}
\begin{tabular}{c c c c c c c} \hline
**Week** & **Session** & **Coordination** & **Sets \(\times\) Reps** & **Strength, Power, and Core** & **Sets \(\times\) Reps** & **Endurance** & **Sets \(\times\) Reps** \\ \hline \multirow{4}{*}{13} & \multirow{4}{*}{Airplane pose + leg side swing on agility mat} & 3 L + R & Single-Leg Box Squat (from box 60) & 6 L + R & \multirow{4}{*}{\(2\times 5\)} \\  & & 1 twist w/arms SWING (from box 40) & 5 L + R & Seated Box Jump + 2 Broad Jumps & \multirow{4}{*}{\(2\times 10\)} \\  & & 1 twist w/arms SWING (from box 60) & 2 \(\times\) 5 L + R & Plain Circuit & \(120\) s & Alternating Leg \\  & & 1 twist w/arms SWING (from box 60) & 2 \(\times\) 5 L + R & Russian Twist & \(3\times 10\) & Lateral Bounds \\  & & 1 twist w/arms SWING (from box 80) & 2 \(\times\) 5 L + R & 2-Leg Lateral Hurdle w/ 1 twist ** & \(2\times 8\) L + R & Seised Numps \\ \hline \multirow{4}{*}{7} & \multirow{4}{*}{Airplane pose + leg side swing on landing mat} & 3 L + R & Single Leg Box Squat (from box 60) & 6 L + R & Single-Leg \\  & & 1 twist w/arms SWING (from box 80) & 5 L + R & Seated Box Jump + 2 Broad Jumps & \multirow{4}{*}{\(10\)} \\  & & 1 twist w/arms SWING (from box 100) & 2 \(\times\) 5 L + R & Plain Circuit & \(150\) s & \\  & & 1 twist w/arms SWING (from box 120) & 2 \(\times\) 5 L + R & Russian Twist & \(3\times 10\) & \\ \cline{1-1}  & & & 2-Leg Lateral Hurdle w/ 1 Twist ** & \(2\times 8\) L + R & \\ \hline \end{tabular}
\end{table} 
Table 1: Cont. The training program and its components (types of exercise, sets, repetitions, height of the boxes and obstacles, etc.) were designed based on previous studies conducted with youth sport athletes [24; 25; 27; 28; 42; 43], also including surfing [44; 45]. The volume of the training was gradually increased over the course of the study (e.g., from 40 min per training session in first 2 weeks up to 60 min after the 3 rd week, with more exercises and/or repetitions being added). The sensorimotor training intensity and difficulty were also gradually manipulated within each session, either by the number of repetitions (1 to 2 sets per exercise, with 5 to 10 repetitions in each set) [28; 46] and/or by the selection of exercises (e.g., two legs to one leg) [46]. For the coordination category, a wide variety of exercises was used, from simple to complex tasks, aiming at the progression of the athletes: from stable to unstable surfaces; introducing arm swing to jumping techniques; changing jumping techniques performed from the forward to backward direction and with increasing full body rotations; using boxes with increasing jump heights. The strength, power, and core category basically used the same set of exercises through the whole program, increasing its difficulty from 2-leg to single-leg exercises, and increasing the duration and/or sets and repetitions and the height of the boxes used for some of the exercises. For the endurance category, exercises increased in complexity over the course of the program, requiring more control while changing directions and increasing the speed and load during jumping/landing tasks.