Standing up from a Chair with an Asymmetrical Initial Foot Position Decreases Trunk and Masticatory Muscle Activities in Healthy Young Men
Autor: | Youngsook Bae |
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Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Upper trapezius
Leadership and Management lcsh:Medicine Health Informatics Biceps Article trunk kinematics 03 medical and health sciences 0302 clinical medicine Health Information Management Medicine muscle activation business.industry Health Policy lcsh:R Muscle activation 030229 sport sciences Anatomy asymmetrical foot position Trunk Trunk kinematics sit-to-stand Position (obstetrics) business Masticatory muscle 030217 neurology & neurosurgery Foot (unit) |
Zdroj: | Healthcare, Vol 8, Iss 480, p 480 (2020) Healthcare Volume 8 Issue 4 |
ISSN: | 2227-9032 |
Popis: | This study aimed to identify the activation of lower extremity, trunk, and masticatory muscle and trunk kinematics of the initial foot position during the sit-to-stand (STS) movement. Sixteen young men participated in this cross-sectional pilot study and performed STS using both symmetrical and asymmetrical foot positions. Activation of the tibialis anterior (TA), gastrocnemius lateral head (GA), rectus femoris (RF), biceps femoris (BF), rectus abdominis, erector spinae (ES), sternocleidomastoid (SCM), upper trapezius (UT), temporalis (TE), and masseter muscles in the dominant side was determined. For trunk kinematics, head and trunk velocities, front-back (For-Back) and mediolateral (Med-Lat) weight translation rates, and trunk inclination were measured. GA, TA, BF, and RF activation significantly increased, whereas ES, SCM, UT, and TE activation significantly decreased when using the asymmetrical foot position. Head velocity, For-Back, Med-Lat, and trunk inclination were also significantly decreased. In conclusion, the asymmetrical foot position increases muscle activation in the lower extremities and decreases trunk inclination. In addition, ES, UT, and TE muscle activity decreases at the initial asymmetrical foot position. |
Databáze: | OpenAIRE |
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