The research scope of surface EMG technologies applied to the lower limbs is broad and extensive, encompassing a wide range of activities such as cycling, sprinting, diving, Tai Chi, and parachuting. The comprehensive array of experimental methodologies employed in previous studies, as well as the resulting data, have provided valuable reference and insight for the composition of this paper. Specifically, in the investigation of the take-off technique for blocking in volleyball, the use of full-range surface EMG testing on athletes' lower limbs allows for the analysis and comparison of activation sequences, mobilization ratios, and levels of engagement, as well as the interrelationships between muscles such as quadriceps femoris, sartorius, biceps femoris muscle, semitendinosus, semimembranosus, medial thigh muscle and gastrocnemius muscle, at varying knee joint angles during the take-off. Such analysis elucidates the muscular characteristics at work during the blocking and take-off movement, offering physiological guidance for technical refinement and force training of athletes. These findings provide technical support for the further development of volleyball in our country and serve as a reference for research in other specialized fields.

Shuai Geng. Research Status of EMG of Lower Limbs Taking off for Blocking at Different Angles of Knee Joints in Volleyball. Frontiers in Sport Research (2024) Vol. 6, Issue 1: 66-71. https://doi.org/10.25236/FSR.2024.060111.

[1] Niu Wenxin, Wang Yang. Effects of Ankle Stabilizers on Electromyographic Activities of Lower-Extremity Muscles during Simulated Half-Squat Landing [J]. Journal of Medical Biomechanics (Special Column of Aviation Biomechanics). 2010.25 (4)

[2] Zhang Guofeng. Analysis of The Lower Limb EMG of The Sprinters between The Steady Phase of Sprint and Part of Power Training Means [D]. Beijing: Beijing Sport University. 2009 (5)

[3] Sun Ke. Effect of Different Seat Height on Lower Limb Movement of Cyclists [D]. Beijing: Beijing Sport University. 2007

[4] Lu Chunyan, Zhai Xuefeng. Comparison Through the electromyography Movement of the Lower Limbs - Explore the Training Method of Swinging the Leg Power under the Maximum Strength [J]. Journal of Changchun Normal University. 2001.20 (2)

[5] Wen Ailing. The EMG Characteristic Analysis of the Lower Limb Muscles in 24-style Tai chi chuan [D]. Beijing: Beijing Sport University. 2010

[6] Zhang Yuan. Muscle Electricity Telemetry during Short-Distance Running [J]. Journal of Wuhan Institute of Physical Education. 2008.42 (6)

[7] Zhan Jianguo, Dai Xinghong. The Characteristic Analysis of Lower Limbs Electricity of Sprinter's Hip Muscle Group in Strength Training [J]. Journal of Xi'an Physical Education University. 2011.28 (2) 227-323

[8] Zhou Jiaying. Research on Biomechanical Characteristics of Lower Limb Muscles in Drop Jump [D]. Shanghai: Shanghai University of Sport. 2007

[9] Luo Jiong. The Influencing Research About the Lower Limbs Muscles EMG Characteristics During Cycling at Different Pedaling Frequencies and Circadian Rhythm [J]. Journal of Southwest China Normal University (Natural Science Edition). 2010.35 (1)

[10] Tao Ping, Liu Yunfa. The Kinetic Study on the Right and Wrong Actions on Knee Joint from Taijiquan's "Parting the Wild Horse's Mane" [J]. Journal of Shanghai University of Sport, 2016, 40(6):84-90.

[11] Wang Fanjia, Zhou Chenlei. Comparison of Lower Extremity Joint Kinematics and Muscle Activation between Asian Squat and Western Squat [J]. Journal of Medical Biomechanics, 2021, 36(5):705-711.

[12] Zeng Yuan. Analysis of Technical Issues Associated with Standing Long Jump [J]. Youth Sport, 2019 (6): 99-100.

[13] Li Jun, Song Jirui. Research on Muscle Strength and Electromyography Characteristics of Volleyball Player's Lower Limbs [J]. Journal of Shenyang Sport University.2007.26 (4)

[14] Chen Ruirui. Discussion on EMG Analysis and Strength Training Methods of Whipping in Volleyball Spike [D]. Beijing: Beijing Sport University. 2010

[15] Xiong Feng. Biomechanical Analysis of Volleyball Spike [D]. Beijing: Beijing Sport University. 2010

[16] Hua Lijun. A Comprehensive Analysis of the Spike and the Special Power of Volleyball Players [D]. Shanghai: Shanghai University of Sport. 2007

[17] Yu Chonggan, Guo Quan. Comparative Study on Isokinetic Test of 3 Joint Muscles of Lower Limbs of Basketball and Volleyball Players [J]. Journal of Sports Sciences: 2000, 20 (1): 73-75

[18] Guo Quan. Comparative Analyses on Muscle Strength of Knee between Volleyball Players and Basketball Players [J]. Journal of Xi'an Physical Education University [J]. 2003, 20(3): 41-44.