Application Research Of PNF Method In Improving Students’ Lower Limb Flexibility In Special Aerobics Course

Bodybuilding operations are performances and competitions,and the dance moves displayed need to have excellent expressiveness,a sense of skill,and strong visual impact,and good flexibility occupies a very important role in the completion of dance moves.For aerobics practitioners,they should master a good level of flexibility.Only those with good flexibility can make the action behave more stretched and natural when completing the action,can better complete the high-quality and difficult action,and show an excellent artistic appreciation.The flexibility of the lower limbs has a great influence on the completion of aerobics.Having good flexibility of the lower limbs can show a large range of movements of the limbs,complete the exercises with higher quality,and exert a higher level of competition,which can not only improve Exercise efficiency can also reduce sports muscle injuries,especially the prevention of sports injuries to the front and back and side muscle groups of the thighs.In this paper,the PNF method is used to carry out related researches on the impact of improving the flexibility of the lower limbs of the students in the special aerobics course.The research methods such as literature data method,expert interview method,teaching experiment method,questionnaire survey method,mathematical statistics method,and logical analysis method are used to study the PNF method.The analysis of the difference between the method and the dynamic and static stretching combined with the stretching method,the main research conclusions are as follows:1.At present,the training methods for the flexibility of lower limbs of college students in special courses of aerobics are relatively single,and the PNF method is used for stretching training.The commonly used stretching methods in teaching are mainly dynamic and static stretching methods,which are relatively difficult.To meet the students’ demand for flexibility,restrict the improvement of the level of flexibility of the lower limbs.2.Both the dynamic and static stretching method and the PNF method can effectively improve the flexibility of the lower limbs of the students in the special aerobics course,but the PNF method has a more significant effect in improving the flexibility of the lower limbs of the students in the special aerobics course.The growth rate of flexibility quality is the PNF method stretching group> the combination of dynamic and static stretching methods.3.The PNF method can effectively improve the flexibility of the lower limbs of boys and girls in the special aerobics course.The combination of dynamic and static stretching methods improves the performance of the vertical splitting of the right leg of the boy and the vertical split of the left leg of the girl.Obviously,the PNF method has a more significant effect on improving the flexibility of lower limbs of boys and girls in aerobics special class.4.After the experiment,the students in the experimental group using the PNF method subjectively felt that the flexibility and stretchability of the muscle groups of the lower limbs had improved,and felt that the body relaxed better than before,the muscle pain was reduced,and they could enter the training state faster.The muscle groups,ligaments and joints of the lower limbs are more relaxed than before,and the ability to complete movements is more standardized,relaxed and natural than before.5.The PNF method is of great help to the improvement of the flexibility of the lower limbs.Using the principle and mechanism of PNF stretching,combined with stretching movements and exercise methods,reasonable stretching exercises can be provided for students who need long-term flexibility training.A more efficient training method system.