Electromyographic analysis of shoulder girdle muscle activation while performing a forehand topspin in elite table tennis athletes with and without shoulder impingement syndrome

Meghdadi, Nazanin; Yalfani, Ali; Minoonejad, Hooman

doi:10.1016/j.jse.2019.01.021

Cited by 17 publications

(12 citation statements)

References 35 publications

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“…Regarding the potential risk of impingement syndrome in table tennis athletes, Meghdadi et al considered the muscle activity patterns of the shoulder girdle component at the movement of forehand topspin and noted that the ROM of the shoulder girdle muscles which included scapulothoracic and glenohumeral joints were changed in the player who experienced shoulder impingement syndrome [ 15 ]. Additionally, Kamonseki et al explored the occurrence of glenohumeral internal rotation deficit in the dominant shoulder of table tennis players, and results presented a decreased internal rotation in the dominant shoulder compared to the nondominant side [ 16 ].…”

Section: Resultsmentioning

confidence: 99%

“…Additionally, impingement syndrome is also common in racket players, which is identified as the abnormal impingement and continual compressive force in the glenohumeral joint [ 23 ]. Meghdadi et al observed the dysfunction of shoulder muscles in table tennis players with impingement syndrome, in which the activation and recruitment sequence of shoulder muscles were disordered, and the activity level of the serratus anterior and supraspinatus muscle was significantly reduced [ 15 ]. Similarly, additional research confirmed that the activity level of the serratus anterior muscle was decreased in an impingement syndrome group [ 24 ].…”

Section: Discussionmentioning

confidence: 99%

“…High levels of muscular control are needed to constantly maintain the stability of the shoulder joint during table tennis performance. One selected studies reported different levels of normalized concentric and eccentric muscular activity using electromyography (EMG) during the movement of forehand topspin [ 15 ]. A larger concentric internal rotation of the shoulder is required in forehand servers, which would cause more muscular imbalance between the posterior rotator cuff and internal rotators [ 27 ].…”

Section: Discussionmentioning

confidence: 99%

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The Biomechanics of Shoulder Movement with Implications for Shoulder Injury in Table Tennis: A Minireview

Ren

Baker

2021

Applied Bionics and Biomechanics

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A high proportion of shoulder injuries in table tennis players are common, which is both a diagnostic and therapeutic challenge. An understanding of the interaction between biomechanical function of the shoulder and mechanisms of shoulder injuries in table tennis players is necessary to prevent injury and to conduct clinical treatment of the shoulder as soon as possible. The purpose of this minireview was to select the available evidence on the biomechanical characteristics of shoulder movement and potential relationships with various shoulder injuries that are common in table tennis players. Five studies revealed interesting biomechanical characteristics of shoulder movement patterns in table tennis players: large internal rotation torque, an increased torsion-rotation movement, and a greater angular velocity of internal rotation were found. Two studies were noted that were related to specific shoulder injury: glenohumeral internal rotation deficit (GIRD) and impingement syndrome. Unfortunately, it is difficult to draw conclusions on the mechanisms of shoulder injury in table tennis players due to the little evidence available that has investigated shoulder injury mechanisms based on biomechanical characteristics. Future studies should focus on the potential relationship between the biomechanical characteristics of the shoulder and injury prevalence to provide valuable reference data for clinical treatment.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

The Biomechanics of Shoulder Movement with Implications for Shoulder Injury in Table Tennis: A Minireview

Ren

Baker

2021

Applied Bionics and Biomechanics

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“…In a table tennis study, Kondrič et al (2006) examined the difference in upper arm EMG signals between forehand top spin strokes when 38-mm and 40-mm balls were struck [ 28 ]. Meghdadi et al (2019) used EMG analysis to investigate differences among players with and without shoulder impingement syndrome in timing and activity intensity in the shoulder girdle muscles when a forehand topspin loop was being performed [ 29 ]. Chanavirut et al (2017) assessed the effects of 6 weeks of training on wrist muscle strength, grip strength, and performance and used EMG as a measure of amateur players’ wrist flexor and extensor muscle conditions [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Creating a Scoring System with an Armband Wearable Device for Table Tennis Forehand Loop Training: Combined Use of the Principal Component Analysis and Artificial Neural Network

Liang

Chen

et al. 2021

Sensors

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Background: This study presents an intelligent table tennis e-training system based on a neural network (NN) model that recognizes data from sensors built into an armband device, with the component values (performances scores) estimated through principal component analysis (PCA). Methods: Six expert male table tennis players on the National Youth Team (mean age 17.8 ± 1.2 years) and seven novice male players (mean age 20.5 ± 1.5 years) with less than 1 year of experience were recruited into the study. Three-axis peak forearm angular velocity, acceleration, and eight-channel integrated electromyographic data were used to classify both player level and stroke phase. Data were preprocessed through PCA extraction from forehand loop signals. The model was trained using 160 datasets from five experts and five novices and validated using 48 new datasets from one expert and two novices. Results: The overall model’s recognition accuracy was 89.84%, and its prediction accuracies for testing and new data were 93.75% and 85.42%, respectively. Principal components corresponding to the skills “explosive force of the forearm” and “wrist muscle control” were extracted, and their factor scores were standardized (0–100) to score the skills of the players. Assessment results indicated that expert scores generally fell between 60 and 100, whereas novice scores were less than 70. Conclusion: The developed system can provide useful information to quantify expert-novice differences in fore-hand loop skills.

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“…According to Mocanu (2019), in table tennis, topspin represents a technical -tactical element specific to attack, the execution being initiated by thighs impulse and fast torsion of the trunk, finalized by tangential hitting of the ball with an accelerated movement and an ascending trajectory from bottom to top of the paddle sustained by the active arm, actions meant to imprint to the ball a rotation effect forwardly, in speed mode. The attack-focused professional players and the great majority of the players who participate in international competitions use the forehand topspin attack in order to imprint speed and special effects to the ball, putting the adversary in difficulty and favoring the increase of the chances to win the point (Meghdadi et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Topspin’s Influence on the Spine in Female Juniors III in Table Tennis

Iordan

Mocanu

Mereuță

2020

BRAIN

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The consolidation of topsin, the most prolific technical & tactical element in the attack’s area, requires, besides the daily training and efficient biomechanics, an optimal health of the osteo-articular and muscular system, due to the fact that the performance of this element requires forceful speed developed throughout the muscle chain. The purpose of the present scientific research is to identify the problems occurred at spine level resulted following to topspin attack and the importance of this technical element in the female junior’s performance. The social enquiry-based survey was conducted on a number of 27 coaches and athletes, using a number of 15 questions. Objectives: optimization of topspin attack in 11-12 years old female juniors. Premises: the knowledge on statistics of spine specific areas generating pain at the time of the attack will allow us to create a postural correction program meant to optimize performance. Research methods: The registration method was based on an opinion poll, on a statistical and mathematical method, on computer graphics method. Conclusion: around 78% of the interviewed specialists consider that the lumbar area is the most affected and predisposed to pain in case of topspin, existing a strong correlation between it and the technical element considered to be the most important in the attack phase (topspin – 66.67%) in female juniors, p = 0.003 < α = 0.05, V = 0.620 and C = 0.659.

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Electromyographic analysis of shoulder girdle muscle activation while performing a forehand topspin in elite table tennis athletes with and without shoulder impingement syndrome

Cited by 17 publications

References 35 publications

The Biomechanics of Shoulder Movement with Implications for Shoulder Injury in Table Tennis: A Minireview

The Biomechanics of Shoulder Movement with Implications for Shoulder Injury in Table Tennis: A Minireview

Creating a Scoring System with an Armband Wearable Device for Table Tennis Forehand Loop Training: Combined Use of the Principal Component Analysis and Artificial Neural Network

Topspin’s Influence on the Spine in Female Juniors III in Table Tennis

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