Banca de DEFESA: NATHALIE CORTEZ BEZERRA DE MEDEIROS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : NATHALIE CORTEZ BEZERRA DE MEDEIROS
DATA : 28/03/2017
HORA: 14:00
LOCAL: AUDITÓRIO DO DEPTO DE FISIOTERAPIA
TÍTULO:

Analysis of lower limb muscle activation and performance in subjects with chronic venous insufficiency during heel-rise test

PALAVRAS-CHAVES:

Vascular Diseases; Electromyography; Musculoskeletal System.

PÁGINAS: 100
GRANDE ÁREA: Ciências da Saúde
ÁREA: Fisioterapia e Terapia Ocupacional
RESUMO:

Background: Failure of calf muscle pump function is considered a major cause of venous insufficiency (CVI) and prolonged venous hypertension leads to weakening of the calf muscles. The evaluation can be done from different forms, from a heel lift test (TEC). Currently, several protocols have been developed for an ECT test in different populations, without a very detailed standardization.

Objectives: Firstly to evaluate the reliability and reproducibility of intra-r inter-raters in healthy adults, from two different protocols with different stimuli: self-paced (TEC_AC) and externally cadenced (TEC_CE); Secondarily, to evaluate the performance and electrical activity of lower limb muscles during an TEC_CE in subjects with CVI compared with healthy paired subjects.

Methods: Two studies were performed and both were of the observational type, with a transversal character. For Study 1, two TEC_AC and TEC_CE protocols were performed on healthy young subjects. For Study 2, subjects with ages between 35 and 65 years old were recruited, with a clinical diagnosis of CVI to perform TEC_EC associated with Surface Electromyography (EMGs).

Results: In study 1, 33 subjects were recruited (16H), aged 23.03 years (± 2.71). We observed that the TEC_AC obtained a better result both in terms of performance (53.01 elevations) and relative inter-rater reproducibility (ICC = 0.77), and TEC_CE obtained better intra-rater reproducibility (ICC = 0, 69). It was observed that at the end of both tests there was an increase in the fatigue symptoms (p <0.01), however, with maintenance of heel elevations in the three TEC_AC (p = 0.76) and decreased performance in the TEC_CE when compared T1, T2 and T3 (p <0.01). In Study 2, 44 subjects with CVI were recruited, of whom 17 comprised the sample from Group IVC, versus 17 subjects from the Control Group. There was a significant difference in the intergroup comparison of the TEC_CE performance (p <0.01) and also in the intergroup comparison of the time spent to perform TEC_CE (p <0.05). The flexure in the right lower limb was significantly lower (p <0.05) in Group IVC. In the evaluation of the muscular electrical activity during the test, significant differences were found in the moments 50% and 75% (p <0.05) of the right anterior tibial muscle and in moments 25% and 50% (p <0.05) of the muscle anterior tibialis.

Conclusion: Our results demonstrate that both can be used to provide muscle performance results. However, the presence or absence of external stimuli induces different performance behaviors during the two modalities studied. On the other hand, individuals with CVI show inferior performance in TEC_CE compared to healthy subjects, with lower muscular electrical activity in the anterior tibial bilaterally already in the early stages of the disease.

 

MEMBROS DA BANCA:
Interno - 1081828 - CATARINA DE OLIVEIRA SOUSA
Externo à Instituição - DANIELLE APARECIDA GOMES PEREIRA - UFMG
Presidente - 5566309 - VANESSA REGIANE RESQUETI FREGONEZI