Effects of linear and undulating periodization of strength training in the acceleration of skater children
Effects of linear and undulating periodization of strength training in the acceleration of skater children
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Abstract Aim: This study aimed to compare the effects of linear periodization (LP) and undulating periodization (UP) of strength training on acceleration in skater children.Methods: Twenty-nine girls (9.67±1.29 years-old, 34.47±8.
06kg, 1.39±0.13m) were distributed into two groups: linear periodization group (LPG, n=14) and undulating periodization group (UPG, n=15).Six levels of progressive training were click here designed based on activities such as multi-jumps, plyometrics, sled towing, and facilitated exercises.The training lasted 16 weeks, with a 1-h session on three non-consecutive days per week.
The acceleration was recorded by digital videography following the major trochanter of the femur, at four moments and under two conditions: static (SS) and dynamic start (DS) in a rectilinear path.Statistical significance was set at 5%.Results: ANOVA indicated group*moment interaction in SS and read more DS for velocity (F3,81=7.883; p<0.001; pη2=0.
226; F3,81=2.36; p=0.078; pη2=0.08-trend, respectively) and acceleration (F3,81=3.96; p=0.
011; pη2=0.128; F3,81=2.92; p=0.039; pη2=0.098, respectively).
Both groups increased velocity in SS and DS (UPG/SS: 1st=4.07, 2nd=9.75, 3rd=8.91, 4th=9.25m/s; LPG/SS: 1st=4.
27, 2nd=7.13, 3rd=7.61, 4th=7.99m/s; UPG/DS: 1st=8.30, 2nd=8.
73, 3rd=8.12, 4th=9.27m/s; LPG/DS: 1st=8.20, 2nd=8.31, 3rd=7.
90, 4th=8.96m/s) and acceleration (UPG/SS: 1st=2.00, 2nd=8.69, 3rd=4.71, 4th=5.
02m/s2; LPG/SS: 1st=2.37, 2nd=3.39, 3rd=3.68, 4th=4.12m/s2; UPG/DS: 1st=1.
78, 2nd=1.97, 3rd=1.65, 4th=2.46m/s2; LPG/DS: 1st=1.67, 2nd=1.
70, 3rd=1.48, 4th=1.93m/s2).Conclusion: Both strength training periodization protocols were effective in developing acceleration and velocity in girl skaters over 16 weeks; however, UP was more efficient than LP for improving acceleration.