Relationship between Lower Limb Angular Kinematic Variables and the Effectiveness of Sprinting during the Acceleration Phase

Struzik, Artur; Konieczny, Grzegorz; Stawarz, Mateusz; Grzesik, Kamila; Winiarski, Sławomir; Rokita, Andrzej

doi:10.1155/2016/7480709

Cited by 45 publications

(46 citation statements)

References 22 publications

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“…Football sprints during the game oscillate around 17-29 times depending on the pace of the game, tactics, opponent or position on the pitch. Speed can be defined as the ability to overcome the distance in the shortest time, accelerating from one point to another in high velocity [4]. Competitors usually perform sprints lasting 2 to 4 seconds over a distance of 20-m or less [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of 12-Week Functional Training Intervention on the Speed of Young Footballers

Baron

Bieniec

Swinarew

et al. 2019

IJERPH

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The aim of the research was to verify the functional state of young football players using selected tests of the Functional Movement Screen (FMS) protocol, as well as the impact of the 12 weeks of functional training on the speed parameters. The research was conducted on 20 highly competitive young (U17) football players. Research project was conducted in two stages: in the first part of the study, the functional assessment was made by using the FMS test, then the measurement of the speed parameters was done with the Microgate photocells system. Results showed a significant improvement in the functional state of young football players: FMS 1 (45.2% of difference, p = 0.004), FMS 2 (24.3% of difference, p = 0.012), FMS 3 (48.5% of difference, p = 0.001). After the functional training program, there was also an improvement in the parameters of the acceleration and velocity: acceleration between 5-10 m and speed between 10-30 m shows significant improvement (expressed during covering a given distance) of the footballers, amounting to 0.02 s (2.4%) and 0.04 s (1.5%). But there was no improvement in acceleration between 0-5 m. An appropriate training schedule, based on FMS results, should be adopted in the annual training program to improve basic motor skills of the football players and minimize their injuries. software, A.S. and A.S.S.; validation, A.S., T.G. and A.S.S.; formal analysis, A.S. and A.S.S.; investigation, J.B., A.B. and A.S.; resources, J.B., A.B. and A.S.; data curation, A.S. and A.S.S.; writing-original draft preparation, J.B., A.B. and A.S.; writing-review and editing, A.S., T.G. and A.S.S.; visualization, A.S.; supervision, A.S.; project administration, A.S.; funding acquisition, A.S. All authors have read and agreed to the published version of the manuscript.Funding: This research received no external funding. Conflicts of Interest:The authors declare no conflict of interest.

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Section: Introductionmentioning

confidence: 99%

Effect of 12-Week Functional Training Intervention on the Speed of Young Footballers

Baron

Bieniec

Swinarew

et al. 2019

IJERPH

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“…One reason could be the individual walking and running gait of the subjects, which can slightly influence the measurement of evVel_Gonio and evVel_Gyro. Additionally, footwear conditions and locomotion velocities can influence rearfoot motion of subjects [4,5,9,12,22]. In our study, the softest shoe (AS) showed the lowest evVel compared to the harder shoes (PU and AD).…”

Section: Discussionmentioning

confidence: 67%

“…In this context, studies have reported that high eversion velocities could be associated with medial tibial stress syndrome [1][2][3]. Aside from investigating injuries, previous studies examined the influence of footwear construction or foot orthoses [1,[4][5][6][7], exhaustion [8], and running pace [9] on maximum eversion velocity and the time until it occurs.…”

Section: Introductionmentioning

confidence: 99%

A Single Gyroscope Can Be Used to Accurately Determine Peak Eversion Velocity during Locomotion at Different Speeds and in Various Shoes

2017

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Abstract:Gyroscopes have been used in previous studies to measure the peak angular velocity of the shoe or foot in the frontal plane (evVel). However, it is not clear whether different test conditions (footwear hardness or locomotion speed) can influence the accuracy of evVel. The purpose of the present study was to compare the accuracy of gyroscopes and electrogoniometers when measuring evVel and the time until evVel (t_evVel) in 12 different conditions using a single axis gyroscope attached to the heel cap. Twenty-four recreational runners were instructed to walk and run on a 15-m indoor track at four locomotion speeds (1.5, 2.5, and 3.5 m/s, and individual running speed) and in three footwear conditions (low to high hardness). The gyroscope data and electrogoniometer data were sampled at a rate of 1000 Hz. Comparisons between both measurement devices showed small mean differences up to 49.8 ± 46.9 deg/s for evVel and up to 5.3 ± 3.5 ms for t_evVel. Furthermore, strong relationships between gyroscope and electrogoniometer data were found for evVel as well as for t_evVel for all conditions. It can be concluded that gyroscopes can be used to accurately determine evVel and t_evVel under a variety of conditions.

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“…Calibration was conducted using the upright position so as to determine the value of the 0∘ angles for the joints being studied. The sampling frequency for the inertial sensors was set at 200 Hz [10].…”

Section: ) Vertebral Angle Measurementmentioning

confidence: 99%

The Effects of Sitting in a Crossed Legs Posture on the Vertebral Angle, Chest Wall Mobility, Pulmonary Function, and Respiratory Muscle Activity: A Preliminary Study

Ahn

Yoon

2019

KSPM

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| Abstract |1 ) PURPOSE: Sitting with crossed legs may have an effect on maintaining a healthy body posture and proper functioning of the respiratory system. Thus, this study's objective was to identify whether or not sitting with crossed legs affects the vertebral angle, chest wall mobility, the pulmonary function, and the activity of the respiratory muscles. METHODS:Thirty healthy subjects were recruited for this study (16 males and 14 females). The vertebral angle, chest wall mobility, pulmonary function, and the activity of the respiratory muscle were measured while the subjects sat in the correct posture and these factors were again measured with the subjects seated with their legs crossed. Three-dimensional motion analysis was used to determine the trunk and lumbar vertebral angles. Surface electromyography was employed to measure the sternocleidomastoid, the rectus abdominis, and the external and internal oblique abdominis muscles. A tapeline was utilized to evaluate the subjects' chest wall †Corresponding Author : Tae-Lim Yoon This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. mobility. Spirometry was assessed to determine the forced vital capacity and forced expiratory volume in one second.Paired t-tests were then performed (p<.05).RESULTS: There were significant differences in the trunk and lumbar flexion angles, the chest wall mobility, the activity of the right external oblique muscle, and the left internal oblique abdominis muscle. However, the difference in pulmonary function did not reach statistical significance. CONCLUSION: A crossed leg posture caused slight thoracic extension and lumbar flexion, which may lead to a decrease of the chest wall mobility and also to an imbalance of the abdominal muscles. Therefore, sitting with a crossed leg posture should be avoided. Yet a crossed leg posture did not have any clinical effect on the pulmonary function of healthy people. It may be necessary to study the effects of sitting with crossed legs over an extended period of time for patients suffering with impaired respiratory function.

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Relationship between Lower Limb Angular Kinematic Variables and the Effectiveness of Sprinting during the Acceleration Phase

Cited by 45 publications

References 22 publications

Effect of 12-Week Functional Training Intervention on the Speed of Young Footballers

Effect of 12-Week Functional Training Intervention on the Speed of Young Footballers

A Single Gyroscope Can Be Used to Accurately Determine Peak Eversion Velocity during Locomotion at Different Speeds and in Various Shoes

The Effects of Sitting in a Crossed Legs Posture on the Vertebral Angle, Chest Wall Mobility, Pulmonary Function, and Respiratory Muscle Activity: A Preliminary Study

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