Browsing by Author "Gapeyeva, Helena"

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    Activity of Scapular Muscles : Comparison of Open and Closed Kinetic Chain Exercises
    (Rēzeknes Tehnoloģiju akadēmija, 2017) Šmite, Daina; Upeniece, Irēna; Runce, Agnese; Gapeyeva, Helena; Lubkina, Velta; Zvaigzne, Anda; Department of Rehabilitation; Department of Sports and Nutrition
    The function of the shoulder region and cervical spine are regulated by the motor control of the scapula. It is important to selectively activate weak muscles and minimally involve tense muscles to improve scapular motor control. The objective of this study was to compare the activity of scapular muscles and the intramuscular balance during various open and closed kinetic chain exercises. Methods: This study included 20 female sedentary office workers. A surface electromyography was used to analyze the activity of the scapular muscle in the correct exercise starting position and during 6 different exercises. Additionally, the optimal intramuscular balance was examined. Results and conclusions: Open kinetic chain exercises is more suitable than closed kinetic chain exercises for training scapular active stability. Horizontal shoulder abduction with external rotation (scapula retraction and internal rotation) while in the prone position was optimal and could be recommended (as well as its modifications with a resistance band) for training programs to improve scapula active stability.
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    Changes in EMG and H-reflex characteristics of knee flexor muscles for athletes under the influence of central neural regulation
    (2021-03) Varpa, Normunds; Paeglītis, Alvis; Galeja, Zinta; Paasuke, Mati; Ereline, Jaan; Gapeyeva, Helena; Kums, Tatjana; Latvian Academy of Sport Education (LASE)
    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.