Changes in EMG and H-reflex characteristics of knee flexor muscles for athletes under the influence of central neural regulation

Applied kinesiology (AK) diagnostic test is a manual muscle testing and technique widely used within the Integrative Medical community by sports doctors and sports physiotherapists. Empirically defined functionally weak muscles are the cause of a particular dysfunction of the organism, but it is not clear if there are physiological findings. Objective: Does a functionally altered state of central neural regulation (CNR) affect H-reflex and EMG characteristics? Material and methods: 34 (16 H-reflex measurements and 18 EMG measurements) healthy LASE students, 21± 0.3 years old, average height - 174 ± 2 cm and the average weight – 63±2 kg, was performed EMG and H-reflex measurements in normal and altered CNR functional states was done on the muscles of the gastrocnemius (GM) and biceps femoris (BF). Results: statistically significant changes (p<.05; .01) are observed in EMG and H-reflex characteristics in normal and altered CNR functional states. Conclusion: there are tendencies that a qualitatively assessed CNR condition can be assessed by quantitative measurements. The groups have a small number of participants, so research in this field should be continued.