The Effects of External Focus of Attention on Shoulder Muscle Activities during Forehand Drive in Table Tennis
Objective: The aim of this study was to evaluate the impact of the external focus of attention on the rotator cuff muscle activity for the timely hit forehand drive by table tennis players. Methods: Twelve professional table tennis players with mean age of 26.5 years voluntarily participated in thi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | fas |
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Islamic Azad University, Hamedan Branch
2016-06-01
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| Series: | Biyumikānīk-i varzishī |
| Subjects: | |
| Online Access: | http://biomechanics.iauh.ac.ir/browse.php?a_code=A-10-28-1&slc_lang=en&sid=1 |
| _version_ | 1818470559008161792 |
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| author | Mohammad Reza Hatami Keyvan Sharifmoradi Mahdi Majlesi |
| author_facet | Mohammad Reza Hatami Keyvan Sharifmoradi Mahdi Majlesi |
| author_sort | Mohammad Reza Hatami |
| collection | DOAJ |
| description | Objective: The aim of this study was to evaluate the impact of the external focus of attention on the rotator cuff muscle activity for the timely hit forehand drive by table tennis players.
Methods: Twelve professional table tennis players with mean age of 26.5 years voluntarily participated in this study. The electrical activities of the muscles of the shoulder girdle using M.A 300 machine and bipolar electrodes surface under two conditions .First with external focus of attention and then without such attention were recorded, first without any guidance blows forehand drive was carried out by subjects (without focus). Then such subject was asked to focus their attention on the area marked for the ball landing (external focus of attention).
Muscle activities in both preparation and tapping phases were analyzed the three –dimensional (200 Hz, Vicon, with four camera series T) motion analysis system was used to obtain the data. Data was analyzed by running reported measures ANOVA at a significance level of p<05.
Results: In without external attention situation, muscle activity did not change significantly compared with the external focus of attention situation (p>0.05) but the different between the intensity of muscle activity was meaningful. This suggests that there is a mutual influence between the two attention factors and muscles (p=0.03), that is, orientation can have a significant effect on the severity of muscle contraction. Intensities of muscle contraction in the preparation and tapping were different (p<0.05).
Conclusion: On the forehand drive technique, the anterior deltoid muscle has the most activity. The type of focus and attention had a significant impact on the change of activity of muscles relative to each other, and the greatest impact is on the reduction of activity of the infraspinatus muscle. This type of focus delays fatigue and results in an increase in the efficiency of neuromuscular in the activities of skills. |
| first_indexed | 2024-04-13T21:39:44Z |
| format | Article |
| id | doaj.art-3eda9bc02d70471fb9fca6434b04d7bc |
| institution | Directory Open Access Journal |
| issn | 2476-4906 2476-5937 |
| language | fas |
| last_indexed | 2024-04-13T21:39:44Z |
| publishDate | 2016-06-01 |
| publisher | Islamic Azad University, Hamedan Branch |
| record_format | Article |
| series | Biyumikānīk-i varzishī |
| spelling | doaj.art-3eda9bc02d70471fb9fca6434b04d7bc2022-12-22T02:28:49ZfasIslamic Azad University, Hamedan BranchBiyumikānīk-i varzishī2476-49062476-59372016-06-01212735The Effects of External Focus of Attention on Shoulder Muscle Activities during Forehand Drive in Table TennisMohammad Reza Hatami0Keyvan Sharifmoradi1Mahdi Majlesi2 Department of Sport Biomechanics, Faculty of Physical Education and Sport Sciences, Islamic Azad University, Brojerd branch, Brojerd, Iran. Objective: The aim of this study was to evaluate the impact of the external focus of attention on the rotator cuff muscle activity for the timely hit forehand drive by table tennis players. Methods: Twelve professional table tennis players with mean age of 26.5 years voluntarily participated in this study. The electrical activities of the muscles of the shoulder girdle using M.A 300 machine and bipolar electrodes surface under two conditions .First with external focus of attention and then without such attention were recorded, first without any guidance blows forehand drive was carried out by subjects (without focus). Then such subject was asked to focus their attention on the area marked for the ball landing (external focus of attention). Muscle activities in both preparation and tapping phases were analyzed the three –dimensional (200 Hz, Vicon, with four camera series T) motion analysis system was used to obtain the data. Data was analyzed by running reported measures ANOVA at a significance level of p<05. Results: In without external attention situation, muscle activity did not change significantly compared with the external focus of attention situation (p>0.05) but the different between the intensity of muscle activity was meaningful. This suggests that there is a mutual influence between the two attention factors and muscles (p=0.03), that is, orientation can have a significant effect on the severity of muscle contraction. Intensities of muscle contraction in the preparation and tapping were different (p<0.05). Conclusion: On the forehand drive technique, the anterior deltoid muscle has the most activity. The type of focus and attention had a significant impact on the change of activity of muscles relative to each other, and the greatest impact is on the reduction of activity of the infraspinatus muscle. This type of focus delays fatigue and results in an increase in the efficiency of neuromuscular in the activities of skills.http://biomechanics.iauh.ac.ir/browse.php?a_code=A-10-28-1&slc_lang=en&sid=1External focus Selective attention Forehand drive Muscle activity |
| spellingShingle | Mohammad Reza Hatami Keyvan Sharifmoradi Mahdi Majlesi The Effects of External Focus of Attention on Shoulder Muscle Activities during Forehand Drive in Table Tennis Biyumikānīk-i varzishī External focus Selective attention Forehand drive Muscle activity |
| title | The Effects of External Focus of Attention on Shoulder Muscle Activities during Forehand Drive in Table Tennis |
| title_full | The Effects of External Focus of Attention on Shoulder Muscle Activities during Forehand Drive in Table Tennis |
| title_fullStr | The Effects of External Focus of Attention on Shoulder Muscle Activities during Forehand Drive in Table Tennis |
| title_full_unstemmed | The Effects of External Focus of Attention on Shoulder Muscle Activities during Forehand Drive in Table Tennis |
| title_short | The Effects of External Focus of Attention on Shoulder Muscle Activities during Forehand Drive in Table Tennis |
| title_sort | effects of external focus of attention on shoulder muscle activities during forehand drive in table tennis |
| topic | External focus Selective attention Forehand drive Muscle activity |
| url | http://biomechanics.iauh.ac.ir/browse.php?a_code=A-10-28-1&slc_lang=en&sid=1 |
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