Effects of 45 Degree Knee Ballistic Movement on Exercise Volume, Performance Time and Muscle Activity during the Standing Barbell Shoulder Press Exercise
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Background and ObjectivesThe use of ballistic movements during resistance exercises can improve the efficiency of force and change the momentum and muscle activity due to the selective mobilization of the motor unit. This study was conducted to analyze the number of repetitions, exercise time, and body muscle activity during traditional resistance and ballistic resistance exercises.Materials and MethodsEight males in their 20s were selected as the study subjects and two exercise types (non-ballistic, ballistic) were performed. The following results were obtained by measuring the number of repetitions, exercise time, and the electromyography (EMG) response during exercise.ResultsFirst, there was a statistically significant difference in the number of repetitions with the ballistic movement during the standing shoulder press (p = .037). Second, there was a statistically significant difference in the exercise time with the ballistic movement during the standing shoulder press (p= .042). Third, there was a statistically significant difference in the erector spinae (p = .002), rectus femoris (p = .001), gastrocnemius (p = .012) activity with the ballistic movement during the standing shoulder press.ConclusionIt was confirmed that muscle activity and power output could be changed with the use of ballistic movements.
Abstract
Background and ObjectivesThe use of ballistic movements during resistance exercises can improve the efficiency of force and change the momentum and muscle activity due to the selective mobilization of the motor unit. This study was conducted to analyze the number of repetitions, exercise time, and body muscle activity during traditional resistance and ballistic resistance exercises.Materials and MethodsEight males in their 20s were selected as the study subjects and two exercise types (non-ballistic, ballistic) were performed. The following results were obtained by measuring the number of repetitions, exercise time, and the electromyography (EMG) response during exercise.ResultsFirst, there was a statistically significant difference in the number of repetitions with the ballistic movement during the standing shoulder press (p = .037). Second, there was a statistically significant difference in the exercise time with the ballistic movement during the standing shoulder press (p= .042). Third, there was a statistically significant difference in the erector spinae (p = .002), rectus femoris (p = .001), gastrocnemius (p = .012) activity with the ballistic movement during the standing shoulder press.ConclusionIt was confirmed that muscle activity and power output could be changed with the use of ballistic movements.
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