The acute effect of lower-body training on average power output measured by loaded half-squat jump exercise
Background: High muscular power output is required in many athletic endeavors in order for success to be achieved. In the scientific community postactivation potentiation and its effect on performance are often discussed. There are many studies where the effect of resistance exercise on motor perfor...
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| Format: | Article |
| Language: | English |
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Palacký University Olomouc
2015-09-01
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| Series: | Acta Gymnica |
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| Online Access: | http://gymnica.upol.cz/artkey/gym-201503-0001_The_acute_effect_of_lower-body_training_on_average_power_output_measured_by_loaded_half-squat_jump_exercise.php |
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| author | Matúš Krčmár Jaromír Šimonek Ivan Vasiľovský |
| author_facet | Matúš Krčmár Jaromír Šimonek Ivan Vasiľovský |
| author_sort | Matúš Krčmár |
| collection | DOAJ |
| description | Background: High muscular power output is required in many athletic endeavors in order for success to be achieved. In the scientific community postactivation potentiation and its effect on performance are often discussed. There are many studies where the effect of resistance exercise on motor performance (such as vertical jump performance and running speed) has been investigated but only a few of them studied power output. Objective: The purpose of this study was to determine the acute responses to a 2 set loaded half-squat jumps and 2 set loaded back half-squat protocols designed to induce the acute maximum average power output during loaded half-squat jumps. Methods: A randomized cross-over design was used. 11 participants of this study performed 3 trials in randomized order separated by at least 48 hours where maximum average power output was measured. The specific conditioning activities were comprised of 2 sets and 4 repetitions of half-squat jumps, 2 sets and 4 repetitions of back half-squat exercises and a control protocol without an intervention by specific a conditioning activity. Participants were strength trained athletes with different sport specializations (e.g. ice-hockey, volleyball). Mean age of the athletes was 22 ± 1.8 years, body mass 80 ± 7.1 kg and body height 185 ± 6.5 cm. Analysis of variance with repeated measures was used to determine differences between pre- and post-condition in each protocol, as well as between conditioning protocols, and also effect size was used to evaluate practical significance. Results: Maximum average power was significantly enhanced after application of the half-squat jump condition protocol (1496.2 ± 194.5 to 1552 ± 196.1 W, Δ ~ 3.72%, p < .001) and after application of the back half-squat protocol (1500.7 ± 193.2 to 1556 ± 191.2 W, Δ ~ 3.68%, p < .001) after 10 min of rest. Power output after control protocol was significantly decreased (1516.7 ± 221.8 to 1506.9 ± 231.1 W, Δ ~ 0.64%, p = .02) after 10 min of rest. Conclusions: It appears that using this type of exercise with individualized external load could be a useful method to enhance average power output in training of athletes in a variety of sports with regards to their training background. |
| first_indexed | 2024-12-14T13:01:20Z |
| format | Article |
| id | doaj.art-a0f5c2719149424c883d37934f5fbd83 |
| institution | Directory Open Access Journal |
| issn | 2336-4912 2336-4920 |
| language | English |
| last_indexed | 2024-12-14T13:01:20Z |
| publishDate | 2015-09-01 |
| publisher | Palacký University Olomouc |
| record_format | Article |
| series | Acta Gymnica |
| spelling | doaj.art-a0f5c2719149424c883d37934f5fbd832022-12-21T23:00:26ZengPalacký University OlomoucActa Gymnica2336-49122336-49202015-09-0145310311110.5507/ag.2015.016gym-201503-0001The acute effect of lower-body training on average power output measured by loaded half-squat jump exerciseMatúš Krčmár0Jaromír Šimonek1Ivan Vasiľovský2Faculty of Education, Constantine the Philosopher University in Nitra, Nitra, SlovakiaFaculty of Education, Constantine the Philosopher University in Nitra, Nitra, SlovakiaFaculty of Education, Constantine the Philosopher University in Nitra, Nitra, SlovakiaBackground: High muscular power output is required in many athletic endeavors in order for success to be achieved. In the scientific community postactivation potentiation and its effect on performance are often discussed. There are many studies where the effect of resistance exercise on motor performance (such as vertical jump performance and running speed) has been investigated but only a few of them studied power output. Objective: The purpose of this study was to determine the acute responses to a 2 set loaded half-squat jumps and 2 set loaded back half-squat protocols designed to induce the acute maximum average power output during loaded half-squat jumps. Methods: A randomized cross-over design was used. 11 participants of this study performed 3 trials in randomized order separated by at least 48 hours where maximum average power output was measured. The specific conditioning activities were comprised of 2 sets and 4 repetitions of half-squat jumps, 2 sets and 4 repetitions of back half-squat exercises and a control protocol without an intervention by specific a conditioning activity. Participants were strength trained athletes with different sport specializations (e.g. ice-hockey, volleyball). Mean age of the athletes was 22 ± 1.8 years, body mass 80 ± 7.1 kg and body height 185 ± 6.5 cm. Analysis of variance with repeated measures was used to determine differences between pre- and post-condition in each protocol, as well as between conditioning protocols, and also effect size was used to evaluate practical significance. Results: Maximum average power was significantly enhanced after application of the half-squat jump condition protocol (1496.2 ± 194.5 to 1552 ± 196.1 W, Δ ~ 3.72%, p < .001) and after application of the back half-squat protocol (1500.7 ± 193.2 to 1556 ± 191.2 W, Δ ~ 3.68%, p < .001) after 10 min of rest. Power output after control protocol was significantly decreased (1516.7 ± 221.8 to 1506.9 ± 231.1 W, Δ ~ 0.64%, p = .02) after 10 min of rest. Conclusions: It appears that using this type of exercise with individualized external load could be a useful method to enhance average power output in training of athletes in a variety of sports with regards to their training background.http://gymnica.upol.cz/artkey/gym-201503-0001_The_acute_effect_of_lower-body_training_on_average_power_output_measured_by_loaded_half-squat_jump_exercise.phpacute effecthalf-squat jumpback half-squatpower enhancementpower |
| spellingShingle | Matúš Krčmár Jaromír Šimonek Ivan Vasiľovský The acute effect of lower-body training on average power output measured by loaded half-squat jump exercise Acta Gymnica acute effect half-squat jump back half-squat power enhancement power |
| title | The acute effect of lower-body training on average power output measured by loaded half-squat jump exercise |
| title_full | The acute effect of lower-body training on average power output measured by loaded half-squat jump exercise |
| title_fullStr | The acute effect of lower-body training on average power output measured by loaded half-squat jump exercise |
| title_full_unstemmed | The acute effect of lower-body training on average power output measured by loaded half-squat jump exercise |
| title_short | The acute effect of lower-body training on average power output measured by loaded half-squat jump exercise |
| title_sort | acute effect of lower body training on average power output measured by loaded half squat jump exercise |
| topic | acute effect half-squat jump back half-squat power enhancement power |
| url | http://gymnica.upol.cz/artkey/gym-201503-0001_The_acute_effect_of_lower-body_training_on_average_power_output_measured_by_loaded_half-squat_jump_exercise.php |
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