The Effect of Skill Training with Blood Flow Restriction on Dart Throwing Accuracy during Fatigue
Poster Presentation
Paper ID : 1544-SSRC
Authors
1دانشگاه حکیم سبزواری
2محقق پسادکتری دانشگاه حکیم سبزواری
3دانشیار رفتار حرکتی دانشکده علوم ورزشی. هیات علمی دانشگاه حکیم سبزواری
Abstract
Background: Environmental fatigue affects movement performance through disrupting the recall of motor units, reducing the ability to exert force, and increasing the concentration of blood lactate. Therefore, finding new methods to reduce or delay environmental fatigue is of particular importance. Blood flow restriction (BFR), as a hypoxic stimulus, is associated with the accumulation of metabolic substances, especially lactic acid, the increase in the use of motor units, and changes in fiber recruitment patterns.
Objective: The purpose of this study was to investigate the effect of skill training with blood flow restriction on the accuracy of dart throwing in environmental fatigue conditions.
Methodology: For this purpose, 28 semi-proficient female students in dart throwing skill (scored 47-57 in the dart throwing observation form) were randomly assigned into skill training group and skill training with blood flow restriction group. The participants performed ten blocks of nine attempts at throwing darts during four weeks (two sessions per week). The participants in the skill training group with blood flow restriction tied the elastic band to the proximal part of their upper hand before each block to create a complete blockage (Borg pressure scale); then, they opened it at the end. The pretest and posttest consisted of a block of nine attempts of throwing to the area of 20 dartboards in fatigue condition (forearm movement with 1RM60% to the point of exhaustion). Dependent t-test and covariance were used to analyze the data.
Results: The results showed that the intragroup effects in both types of skill training with and without blood flow restriction were statistically significant. A statistically significant difference was observed between the two training groups in the posttest phase, which was superior to the skill training group with blood flow restriction.
Conclusion: It seems that skill training with blood flow restriction reduced or delayed fatigue and thus improved dart throwing accuracy through neuromuscular adaptations and increased lactate tolerance level.
Objective: The purpose of this study was to investigate the effect of skill training with blood flow restriction on the accuracy of dart throwing in environmental fatigue conditions.
Methodology: For this purpose, 28 semi-proficient female students in dart throwing skill (scored 47-57 in the dart throwing observation form) were randomly assigned into skill training group and skill training with blood flow restriction group. The participants performed ten blocks of nine attempts at throwing darts during four weeks (two sessions per week). The participants in the skill training group with blood flow restriction tied the elastic band to the proximal part of their upper hand before each block to create a complete blockage (Borg pressure scale); then, they opened it at the end. The pretest and posttest consisted of a block of nine attempts of throwing to the area of 20 dartboards in fatigue condition (forearm movement with 1RM60% to the point of exhaustion). Dependent t-test and covariance were used to analyze the data.
Results: The results showed that the intragroup effects in both types of skill training with and without blood flow restriction were statistically significant. A statistically significant difference was observed between the two training groups in the posttest phase, which was superior to the skill training group with blood flow restriction.
Conclusion: It seems that skill training with blood flow restriction reduced or delayed fatigue and thus improved dart throwing accuracy through neuromuscular adaptations and increased lactate tolerance level.
Keywords