20.500.12556/DKUM-93355 The effects of spinal manipulation on motor unit behavior Over recent years, a growing body of research has highlighted the neural plastic effects of spinal manipulation on the central nervous system. Recently, it has been shown that spinal manipulation improved outcomes, such as maximum voluntary force and limb joint position sense, reflecting improved sensorimotor integration and processing. This study aimed to further evaluate how spinal manipulation can alter neuromuscular activity. High density electromyography (HD sEMG) signals from the tibialis anterior were recorded and decomposed in order to study motor unit changes in 14 subjects following spinal manipulation or a passive movement control session in a crossover study design. Participants were asked to produce ankle dorsiflexion at two force levels, 5% and 10% of maximum voluntary contraction (MVC), following two different patterns of force production (“ramp” and “ramp and maintain”). A significant decrease in the conduction velocity (p = 0.01) was observed during the “ramp and maintain” condition at 5% MVC after spinal manipulation. A decrease in conduction velocity suggests that spinal manipulation alters motor unit recruitment patterns with an increased recruitment of lower threshold, lower twitch torque motor units. high-density surface electromyography chiropractic electromyography decomposition motor unit elektromiogrami kiropraktika motorika true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/journal/brainsci © 2021 by the authors Članek v reviji 2025-06-20 13:31:44 2025-06-20 13:31:44 2025-06-21 03:08:14 0000-00-00 00:00:00 2021 0 0 str. 1-19 iss. 1 Vol. 11 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2020-12-16 2021-01-12 2021-01-14 616.8:004.5 47332099 10.3390/brainsci11010105 2076-3425 brainsci-11-00105.pdf brainsci-11-00105.pdf 1 A35EBCB6BCF21DFBE79CF54C5A958CFA a600f7c2c93c8b19f8176921886c0cb366662781238c3980aad6c6879edac5b9 6673af78-4dca-11f0-a0a9-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=192533 https://www.mdpi.com/2076-3425/11/1/105 1 254471c1-4dca-11f0-a0a9-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=192532 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0