scholarly journals Mechanical character of lower limb for table tennis cross step maneuver

2020 ◽  
Vol 15 (4) ◽  
pp. 552-561 ◽  
Author(s):  
Shirui Shao ◽  
Changxiao Yu ◽  
Yang Song ◽  
Julien S Baker ◽  
Ukadike C Ugbolue ◽  
...  
Keyword(s):  
Kinetic Data ◽  
Step Test ◽  
Professional Athletes ◽  
Table Tennis ◽  
Foot Model ◽  
Plantar Pressure Measurement ◽  
The Cross ◽  
Analysis System ◽  
Oxford Foot Model ◽  
Pressure Measurement System

The agile footwork is a basic but important skill, how to efficiently grasp and improve its performance has always interested coaches and athletes, beginners particularly. The purpose of this study was to investigate the differences in kinetics and kinematics of the cross step between professional athletes and novice athletes using the Oxford foot model. Twenty-two male participants (professional athletes, 11; novice athletes, 11) with dominant right feet participated in the table tennis cross step test. A Vicon motion analysis system and a Novel Pedar insole plantar pressure measurement system were used to record kinematic and kinetic data, respectively. Professional athletes showed significantly smaller forefoot plantarflexion and abduction, but larger hallux dorsiflexion at the cross step ending. In addition, they also showed significantly larger forefoot dorsiflexion and adduction but smaller forefoot eversion as well as rearfoot inversion than novice athletes at the forward-end of the step. In the entire motion, professional athletes performed significantly smaller joints range of motion, especially the hindfoot with respect to tibia angles. Concerning plantar relative load, professional athletes were significantly greater than that of novice athletes in the other toes, lateral forefoot and rear foot. Professional athletes possessed higher footwork agility and greater foot motor technique. The findings on the internal mechanisms of the cross step could help coaches and novice athletes understand the mechanical efficiencies in stroke finishing leading to improvements in performance.

scholarly journals Comparing the biomechanical characteristics between squat and standing serves in female table tennis athletes

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4760 ◽  
Author(s):  
Changxiao Yu ◽  
Shirui Shao ◽  
Julien S. Baker ◽  
Yaodong Gu
Keyword(s):  
Lower Limb ◽  
Angular Rate ◽  
Random Order ◽  
Table Tennis ◽  
Time Integral ◽  
Tennis Serve ◽  
Analysis System ◽  
Force Time ◽  
Kinematics And Kinetics ◽  
Pressure Measurement System

Background The table tennis serve involves complex spatial movements combined with biomechanial characteristics. Although the differences in lower-limb biomechanial characteristics to a great extent influence the translational and spinning velocity of the ball when using the different styles of table tennis serve, few researchers have studied their mechanics. Therefore, the aim of this study was to investigate the differences in lower-limb activity between the squat and standing serves during a table tennis short serve. Methods Ten advanced female table tennis participants performed a squat serve and standing serve in random order. A Vicon motion analysis system and a Novel Pedar insole plantar pressure measurement system were used to record kinematics and kinetics data, respectively. Results Key findings from the study were that the squat serve not only showed significantly larger hip and knee flexion, as well as ankle dorsiflexion, it also showed significantly larger hip adduction and external knee rotation, with larger changing angular rate of the lower limb joints in the sagittal and the transverse planes when the two serving styles were compared. In addition, the force-time integral (FTI) was higher in the rear foot area for the standing serve. Discussion The results demonstrated that the squat serve needs higher lower limb drive during a table tennis short serve compared with a standing serve. These biomechanical considerations may be beneficial for table tennis athletes and coaches as a method of optimizing performance characteristics during both competition and training.

scholarly journals A comparative biomechanical analysis of the performance level on chasse step in table tennis

2019 ◽  
Vol 14 (3) ◽  
pp. 372-382 ◽  
Author(s):  
Changxiao Yu ◽  
Shirui Shao ◽  
Julien S Baker ◽  
Jan Awrejcewicz ◽  
Yaodong Gu
Keyword(s):  
Movement Pattern ◽  
Large Data ◽  
Mechanical Efficiency ◽  
Biomechanical Analysis ◽  
Data Sets ◽  
Table Tennis ◽  
Kinetic Information ◽  
Foot Model ◽  
Analysis System ◽  
Peak Pressures

Initial observations have indicated that each movement pattern or skill set has a fundamental mechanical structure. The purpose of this study was to examine biomechanical characteristics in the chasse step movement patterns between professional athletes (PA) and beginner players (BP). Large data sets were obtained for comparison by capturing kinematic and kinetic information of the dominant foot using the Oxford Foot Model (OFM) during table tennis strokes. Nine male PA and nine BP (all with dominant right feet) participated in a table tennis footwork test. A Vicon motion analysis system and a Novel Pedar insole plantar pressure measurement system were used to record kinematic and kinetic data, respectively. Findings from the study indicated that PA not only showed significantly larger forefoot and rear-foot dorsiflexion, but also demonstrated larger hallux plantarflexion. Also, PA showed significantly larger forefoot inversion and abduction at the forward-end of the step. Peak pressure values were higher under the lateral forefoot, and the medial and lateral rear-foot with faster changes in angular velocity recorded for PA during the chasse step phase. Greater peak pressures were also recorded under the other toes, and in the central and lateral forefoot during the forward swing phase when compared to BP. The results of the present study demonstrated that PA possessed greater foot drive technique. These findings may help coaches and beginners to comprehend the internal mechanisms of the chasse step technique and assist beginners in improving the mechanical efficiency of their performance.

scholarly journals Gender Differences in Kinematic Analysis of the Lower Limbs during the Chasse Step in Table Tennis Athletes

Healthcare ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 703
Author(s):  
Xiaoyi Yang ◽  
Yuqi He ◽  
Shirui Shao ◽  
Julien S. Baker ◽  
Bíró István ◽  
...  
Keyword(s):  
Female Athletes ◽  
External Rotation ◽  
Rotational Velocity ◽  
Knee Extension ◽  
Lower Limbs ◽  
Table Tennis ◽  
Male Athletes ◽  
Analysis System ◽  
Hip Flexion ◽  
Hip Internal Rotation

The chasse step is one of the most important footwork maneuvers used in table tennis. The purpose of this study was to investigate the lower limb kinematic differences of table tennis athletes of different genders when using the chasse step. The 3D VICON motion analysis system was used to capture related kinematics data. The main finding of this study was that the step times for male athletes (MA) were shorter in the backward phase (BP) and significantly longer in the forward phase (FP) than for female athletes (FA) during the chasse step. Compared with FA, knee external rotation for MA was larger during the BP. MA showed a smaller knee flexion range of motion (ROM) in the BP and larger knee extension ROM in the FP. Moreover, hip flexion and adduction for MA were significantly greater than for FA. In the FP, the internal rotational velocity of the hip joint was significantly greater. MA showed larger hip internal rotation ROM in the FP but smaller hip external rotation ROM in the BP. The differences between genders can help coaches personalize their training programs and improve the performance of both male and female table tennis athletes.

scholarly journals Analysis of foot kinematics wearing high heels using the Oxford foot model

2018 ◽  
Vol 26 (5) ◽  
pp. 815-823 ◽  
Author(s):  
Meizi Wang ◽  
Yaodong Gu ◽  
Julien Steven Baker
Keyword(s):  
Foot Kinematics ◽  
Foot Model ◽  
High Heels ◽  
Oxford Foot Model

Study on Piezoelectric CeramicType Insole Plantar Pressure Measurement System Based on Test Point

2011 ◽  
Vol 383-390 ◽  
pp. 5148-5153
Author(s):  
Ye Min Guo ◽  
Lan Mei Wang ◽  
Yun Yan Ge
Keyword(s):  
Measurement System ◽  
Pressure Measurement ◽  
Plantar Pressure ◽  
Piezoelectric Ceramic ◽  
Test Point ◽  
Pressure System ◽  
Scientific Methods ◽  
Design Requirements ◽  
Plantar Pressure Measurement ◽  
Pressure Measurement System

According to the requirement of measurement of plantar pressure, this thesis puts forward a plan to construct a new insole plantar pressure system based on multifunction data acquisition modular and Test Point. Then the hardware part and software part are designed and developed respectively. The piezoelectric ceramic type sensors are designed, manufactured and calibrated according to scientific methods. Meanwhile, the DAQ card is selected carefully. Of course, the software part is developed based on Test Point. A series of tests are performed in order to validate the function of the plantar pressure measurement system. The results satisfy the anticipated design requirements. At last, the problems and application trend of the plantar pressure system are predicted.

Sagittal Plane Kinematics of Passive Dorsiflexion of the Foot in Adolescent Athletes

2013 ◽  
Vol 103 (5) ◽  
pp. 394-399 ◽  
Author(s):  
Alfred Gatt ◽  
Nachiappan Chockalingam ◽  
Owen Falzon
Keyword(s):  
Repeated Measures ◽  
Sagittal Plane ◽  
Random Order ◽  
Adolescent Athletes ◽  
Range Of Movement ◽  
Kinematic Data ◽  
Repeated Measures Analysis ◽  
Foot Posture ◽  
Foot Model ◽  
Oxford Foot Model

Background: Although assessment of passive maximum foot dorsiflexion angle is performed routinely, there is a paucity of information regarding adolescents’ foot and foot segment motion during this procedure. There are currently no trials investigating the kinematics of the adolescent foot during passive foot dorsiflexion. Methods: A six-camera optoelectronic motion capture system was used to collect kinematic data using the Oxford Foot Model. Eight female amateur gymnasts 11 to 16 years old (mean age, 13.2 years; mean height, 1.5 m) participated in the study. A dorsiflexing force was applied to the forefoot until reaching maximum resistance with the foot placed in the neutral, pronated, and supinated positions in random order. The maximum foot dorsiflexion angle and the range of movement of the forefoot to hindfoot, tibia to forefoot, and tibia to hindfoot angles were computed. Results: Mean ± SD maximum foot dorsiflexion angles were 36.3° ± 7.2° for pronated, 36.9° ± 4.0° for neutral, and 33.0° ± 4.9° for supinated postures. One-way repeated-measures analysis of variance results were nonsignificant among the 3 groups (P = .70), as were the forefoot to tibia angle and hindfoot to tibia angle variations (P = .091 and P = .188, respectively). Forefoot to hindfoot angle increased with the application of force, indicating that in adolescents, the forefoot does not lock at any particular posture as portrayed by the traditional Rootian paradigm. Conclusions: Participants had very flexible foot dorsiflexion, unlike those in another study assessing adolescent athletes. This finding, together with nonsignificant statistical results, implies that foot dorsiflexion measurement may be performed at any foot posture without notably affecting results. (J Am Podiatr Med Assoc 103(5): 394–399, 2013)

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