Comparison of muscle strategies between two different age groups in the sitting-to-standing movement
DOI:
https://doi.org/10.11606/issn.2317-0190.v16i3a103186Keywords:
Age Groups, Posture, Movement, Muscle Skeletal, ElectromyographyAbstract
To investigate the activation sequence of the tibialis anterior muscle (AT), the rectus femoris muscle (RF), the medial gastrocnemius muscle (MG), the biceps femoris muscle, and the paravertebral lumbar muscle (PL) in the movement from sitting to standing position as com-pared between two different age groups. Subjects: Group A: twenty healthy subjects between 25 and 35 years of age, and Group B: twenty subjects between 60 and 65 years of age with no associated neurologi-cal pathologies and no history of falls for the preceding six months. In group A the total time of movement was less with eyes open than with eyes closed. For group B, the difference in the total task execution time was not statistically significant for the two conditions (p < 0.05). The one-way analysis of variance was used to compare the muscle activation sequences, and the results demon-strate that this sequence was different between group A and group B with eyes open and similar with eyes closed. The tibialis anterior was the first muscle to be activated in both groups in both conditions, but the other muscles had a different activation sequence; the total time of movement was less in group A; the momentary absence of vision influenced group A more than group B.
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