The Effects of Short-Duration High-Intensity Soccer Fatigue Simulation on Dynamic Balance and Lower Limb Isokinetic Strength in Youth Soccer Players

Bukry, Saiful Adli; Azidin, Mohammed Raja Firhad Raja; Justine, Maria; Manaf, Haidzir

doi:10.52547/aassjournal.1033

Cited by 3 publications

(3 citation statements)

References 35 publications

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“…During the test, participants were instructed to stand on one leg in the center of the Y and extend their other leg as far as possible while maintaining balance and placing their hands on their hips. Participants were considered to have failed a trial if they touched the ground while reaching, lost balance during the movement, raised both arms to stabilize themselves, or lifted the heel of their standing leg during the execution [ 38 ]. Three trials were performed on each leg, with a passive recovery period of 10 s between them.…”

Section: Methodsmentioning

confidence: 99%

The Effect on Flexibility and a Variety of Performance Tests of the Addition of 4 Weeks of Soleus Stretching to a Regular Dynamic Stretching Routine in Amateur Female Soccer Players

Alimoradi

Sahebozamani

Hosseini

et al. 2023

Sports

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The purpose of this study was to investigate the effects of 4 weeks of soleus stretching on ankle flexibility and dynamic balance, as well as selected monitoring and performance tests in soccer. Forty-five healthy female soccer players were randomly divided into a regular stretching group, a regular stretching group with soleus stretching, and a control group. Dynamic stretching protocols were performed for 4 weeks during three sessions per week as part of routine exercises. The regular group stretched three muscle groups (i.e., gastrocnemius, quadriceps, and hamstrings), while the regular + soleus group also stretched the soleus muscle. Before and after the stretching intervention, the ankle range of motion test, Y-balance test, drop jump test, dynamic knee valgus test, and Illinois Agility Running Test were performed. Ankle ROM, Y-balance, and DJ significantly improved in both intervention groups compared to controls. Only the regular + soleus group showed improvement in the Illinois Agility Running Test. Additionally, athletes performing the additional soleus stretching had greater improvements in ankle ROM and DJ but not in DKV or Y-balance. The results showed that adding soleus stretching into regular protocols can provide benefits for female soccer players in terms of performance parameters.

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Section: Methodsmentioning

confidence: 99%

The Effect on Flexibility and a Variety of Performance Tests of the Addition of 4 Weeks of Soleus Stretching to a Regular Dynamic Stretching Routine in Amateur Female Soccer Players

Alimoradi

Sahebozamani

Hosseini

et al. 2023

Sports

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“…The testing was performed on the dominant leg [ 24 ]. To acquaint participants with the Biodex leg extension movement, participants performed a localized (thigh region) warm-up of 10 submaximal leg extension/flexion repetitions at ~75% of their perceived maximum at a velocity of 150 deg/s [ 17 , 25 ].…”

Section: Methodsmentioning

confidence: 99%

Isokinetic Dynamometer Leg Extensor Peak Torque Measurement: A Time-Delayed Reliability and Score Selection Analysis Study

Thompson

2023

JFMK

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The reliability of isokinetic peak torque (PT) has been reported mostly using a short-term (<~10 day) inter-trial testing time frame. However, many studies and programs utilize a long-term (several weeks to months) inter-trial testing period. Additionally, the methods by which the PT value is selected and reported from a multiple rep testing scheme have not been well investigated for both reliability and PT absolute performance comparisons. The purpose of this study was to investigate the long-term reliability of isokinetic and isometric PT of the leg extensors with an emphasis on the differences among several PT score selection methods. Thirteen men and women (age = 19.5 years) underwent two testing trials separated by 28.8 (±1.8) days. Testing included maximal voluntary contractions of three sets of three reps for two isokinetic contraction conditions of 60 (Isok60) and 240 (Isok240) deg/s velocities, and three sets of one rep of isometric contractions for the leg extensors. The PT score was derived from seven different methods (see text for descriptions). Reliability as assessed from intraclass correlation coefficients (ICCs) varied widely across contraction conditions and PT score selection parameters. The Isok60 velocity overall had lower reliability (ICCs = 0.48–0.81) than Isok240 (0.77–0.87) across the conditions whereas the isometric PT variables showed moderate reliability (0.71–0.73). Overall the set 1 PT score selection parameters were generally lower (p ≤ 0.05) than those that involved sets two and three. Systematic error (p ≤ 0.05) was shown for 6 out of the 17 PT selection variables. On a subjective interpretation basis, when taking everything into account the best overall combination of time/trial efficiency, reliability, best/highest PT score parameter, and reduced risk of systematic bias appears to be the PT variable that uses the average of the highest two reps of the first two sets of three reps—i.e., averaging the highest two values of the six total reps from the first two sets.

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“…This suggests that athletes may be injured from time to time due to insufficient muscle strength. In addition to muscle strength, the decrease in the functional integrity of the knee joint may disrupt the postural balance and accordingly may reveal the risk of anterior cruciate ligament injury [8]. Thus, it can be said that following the strength ratio between the lower extremity muscles is an important criterion for athletes to minimize this situation that may arise and to increase their performance of the athletes.…”

Section: Pedagogymentioning

confidence: 99%

Investigation of the relationship between isokinetic lower extremity strength and the vertical jump parameter in elite women football players

Soyal,

Aksoy,

Şengöl

et al. 2023

ppcs

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Background and Study Aim. It can be said that recently, with the popularity of women's football and playing at a professional level, physical and physiological needs have increased. In this context, this study was conducted to examine the relationship between isokinetic lower extremity strength and vertical jump parameters in elite female football players. Material and Methods. The model of the research was the relational survey model, one of the survey models. The research group consisted of 26 volunteer professional female football players competing at the Turkish women's super league level. The maximum strength of the knee extensor and flexor muscles of female soccer players was measured using an isokinetic dynamometer device (Cybex NORM®, Humac, CA, USA) that allows the recording of instant isokinetic torque. The vertical jump test data of the female football players were determined with the Fusion Sport-Smart Jump brand jump mat. While SPSS 25.0 package program was used for statistical analysis evaluation, correlation analysis was applied to compare the relationship between isokinetic lower extremity strength and vertical jump parameter. Results. When the participants' vertical jump, right knee flexion and extension degrees were examined, a moderate positive correlation was found between the vertical jump parameter and the 240s Flexion Right %Body Weight values, and no relationship was found between the other parameters and the vertical jump. A moderate positive correlation was detected between the vertical jump parameter and 240s Flexion Left %Body Weight. Another moderate positive correlation was found between the vertical jump parameter and 240s Extension Left %Body Weight values. At the same time, no relation was found between other parameters and vertical jumps. Conclusions. As a result, when the study results were evaluated, a positive relationship was determined between vertical jump and right knee flexion parameters and similarly left knee flexion-extension parameters. Based on this situation, it was concluded that the contraction levels of the lower extremity strength, which plays an important role in determining the performance in the football branch, contribute positively to the jump performance.

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The Effects of Short-Duration High-Intensity Soccer Fatigue Simulation on Dynamic Balance and Lower Limb Isokinetic Strength in Youth Soccer Players

Cited by 3 publications

References 35 publications

The Effect on Flexibility and a Variety of Performance Tests of the Addition of 4 Weeks of Soleus Stretching to a Regular Dynamic Stretching Routine in Amateur Female Soccer Players

The Effect on Flexibility and a Variety of Performance Tests of the Addition of 4 Weeks of Soleus Stretching to a Regular Dynamic Stretching Routine in Amateur Female Soccer Players

Isokinetic Dynamometer Leg Extensor Peak Torque Measurement: A Time-Delayed Reliability and Score Selection Analysis Study

Investigation of the relationship between isokinetic lower extremity strength and the vertical jump parameter in elite women football players

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