RENAN LIMA MONTEIRO
Projetos de Pesquisa
Unidades Organizacionais
LIM/54 - Laboratório de Bacteriologia, Hospital das Clínicas, Faculdade de Medicina
2 resultados
Resultados de Busca
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- Hip Rotations' Influence of Electromyographic Activity of Gluteus Medius Muscle During Pelvic-Drop Exercise(2017) MONTEIRO, Renan Lima; FACCHINI, Joana Hoverter; FREITAS, Diego Galace de; CALLEGARI, Bianca; JOAO, Silvia Maria AmadoContext: Pelvic-drop exercises are often used to strengthen the gluteus medius (GM) muscle with the aim of increasing or prioritizing its recruitment. However, the effect of hip rotation on the performance of the action of the GM is unknown. Objective: To evaluate the effect of hip rotation on the recruitment of the GM, tensor fasciae latae (TFL), and quadratus lumborum (QL). Method: Seventeen healthy subjects performed 2 sets of 4 repetitions of pelvic-drop exercise in random order with pelvic-drop lateral, medial, and neutral rotation of the hip. Main Outcome Measures: The electromyographic (EMG) activity of the GM, l'EL, and QL was evaluated using surface electromyography. Results: There were significant increases in the activation of the GM with medial and neutral rotation compared with lateral rotation (P =.03, P =.01, respectively), and there was no difference between medial and neutral rotation (P = 1.00). There was no difference in EMG activity of the TFL, and QL in any of the positions. The GM: TFL, ratio was the same in all analyzed positions. Regarding the GM:QL ratio, there was a significant increase with medial rotation compared with lateral rotation (P =.02). Conclusions: Pelvic-drop exercises are more efficient for activating the GM when the hip is in medial rotation and neutral position.
- Treating low back pain with combined cerebral and peripheral electrical stimulation: A randomized, double-blind, factorial clinical trial(2017) HAZIME, F. A.; BAPTISTA, A. F.; FREITAS, D. G. de; MONTEIRO, R. L.; MARETTO, R. L.; HASUE, R. H.; JOAO, S. M. A.Background: Recent evidence suggests that chronic low back pain is associated with plastic changes in the brain that can be modified by neuromodulation strategies. This study investigated the efficacy of transcranial direct current stimulation (tDCS) combined simultaneously with peripheral electrical stimulation (PES) for pain relief, disability and global perception in patients with chronic low back pain (CLBP). Methods: Ninety-two patients with CLBP were randomized to receive 12 sessions on nonconsecutive days of anodal tDCS (primary motor cortex, M1), 100 Hz sensory PES (lumbar spine), tDCS + PES or sham tDCS + PES. Pain intensity (11-point numerical rating scale), disability and global perception were applied before treatment and four weeks, three months and six months post randomization. Results: A two points reduction was achieved only by the tDCS + PES (mean reduction [MR] = -2.6, CI95% = -4.4 to -0.9) and PES alone (MR = -2.2, CI95% = -3.9 to -0.4) compared with the sham group, but not of tDCS alone (MR = -1.7, CI95% = -3.4 to -0.0). In addition to maintaining the analgesic effect for up to three months, tDCS + PES had a higher proportion of respondents in different cutoff points. Global perception was improved at four weeks and maintained three months after treatment only with tDCS + PES. None of the treatments improved disability and the affective aspect of pain consistently with pain reduction. Conclusion: The results suggest that tDCS + PES and PES alone are effective in relieving CLBP in the short term. However, only tDCS + PES induced a long-lasting analgesic effect. tDCS alone showed no clinical meaningful pain relief.