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Search Results: 1 - 10 of 19792 matches for " Gladson Ricardo Flor; "
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Efeitos sobre o tecido ósseo e cartilagem articular provocados pela imobiliza??o e remobiliza??o em ratos Wistar
Portinho, Danielle;Boin, Vinícius Guiselini;Bertolini, Gladson Ricardo Flor;
Revista Brasileira de Medicina do Esporte , 2008, DOI: 10.1590/S1517-86922008000500001
Abstract: long immobilization periods lead to bone and properties loss, and its recovery depends on many factors. besides that, immobilization can cause ulcerations in the articular cartilage tissue due to alterations, such as loss of proteoglycans and total cartilage mass and volume. the aim of this study was to verify histological alterations of the periarticular bone tissue and articular cartilage caused by immobilization as well as remobilization of hinder limbs of wistar rats. twelve wistar rats were divided in two groups: gi - (n=6): 15 days with the left hinder limb immobilized at plantiflexion, with the right limb being the control; gr - (n=6): used a 15 day-period of free remobilization in the cage, associated with 3 daily stretching bouts of the left soleus muscle for 30 seconds. the measures of the cortical bone thickness, diameter of the medular channel and number of condrocites were evaluated; in the cartilage tissue, the cartilage mean thickness and the number of condrocites were measured. the results showed that for gi there were no significant alterations in the bone thickness (p=0.1156), nor in the medular channel diameter (p=0.5698), but there was significant decrease of the osteocytes compared with the counter-lateral side (p=0.0005); in gr decrease in the number of osteocytes (p=0.0001) was also observed, but the differences in thickness (p=0.1343) and medular channel diameter (p=0.6456) remained non-significant. there were no significant differences for the articular cartilage data for the samples, neither in the cartilage thickness for gi (p=0.6640) and gr (p=0.1633); concerning the number of condrocites in gi (p=0.9429) and gr (p=0.1634). it is concluded hence that two weeks of immobilization and remobilization produced only significant decrease in the number of osteocytes in the immobilized rats and continued to decrease even in the remobilized animals.
Análise longitudinal de músculos sóleos, de ratos, submetidos a alongamento passivo com uso prévio de ultrassom terapêutico
Bertolini, Gladson Ricardo Flor;Barbieri, Cláudio Henrique;Mazzer, Nilton;
Revista Brasileira de Medicina do Esporte , 2009, DOI: 10.1590/S1517-86922009000200006
Abstract: muscular stretching is much diffused among athletes and people involved in physical activities, besides being a routine procedure in physiotherapy clinics, mainly aiming at flexibility increase. the therapeutic ultrasound possesses thermal and non-thermal effects, which generate possibilities of tissue extensibility and cellular metabolism increase and can aid in static stretching anabolic effects. the aim of this study was to analyze the static passive stretching effects in left soleus muscle (lsm) of rats, associated to the therapeutic ultrasound use on muscular tissue longitudinal alterations. forty-two wistar rats, divided in therapeutic ultrasound treated groups, with thermal and non-thermal doses, and subsequent static stretching in 3 sets of 30 s, besides groups just treated with ultrasound or stretched, for 15 days were used. the variations found between lsm and rsm of each group were compared. the variables were: muscular length, serial sarcomere estimation in the fiber and along the muscle, and sarcomere length. the analyzed variables results showed alterations in rest muscular length in the groups with therapeutic ultrasound in thermal dose associated to static stretching. however, there were not significant differences for the other analyzed variables. it is concluded that static passive stretching associated to therapeutic ultrasound in thermal dose just produced increase in rest muscular length.
Efeitos da varia??o da rampa de entrega do ΔF sobre a acomoda??o da corrente interferencial em mulheres saudáveis
Guerra, Thais Eduarda Carvalho;Bertolini, Gladson Ricardo Flor;
Revista Dor , 2012, DOI: 10.1590/S1806-00132012000100005
Abstract: background and objectives: interferential current is a common electrotherapy modality in physical therapy, but the regulation of its parameters is still empirical, being necessary studies to establish adequate parameters for its application. this study aimed at evaluating onset time of the first accommodation and the number of times it occurs during 10 minutes of interferential current application, varying its presentation form of delta f (δf) delivery ramps. method: the sample consisted of 18 women divided in 3 groups: group a - 1:1 (variation every 1 second), in the 2nd day 1:5:1 (frequencies increase and decrease in 1 second and maintenance for 5 seconds), 3rd day - 6:6 (frequency increase and decrease in 6 seconds); group b - 1:5:1 in the 1st day, in the 2nd day we used 6:6 and in the 3rd day 1:1; group c - 6:6 in the 1st day, 1:1 in the 2nd and 1:5:1 in the 3rd day. stimulation was above the sensory threshold during 10 minutes and volunteers would indicate the moment of the first accommodation and how many times would accommodation occur. results: during accommodation threshold evaluation, no δf delivery ramp presented significant difference. there has been significant difference in total number of accommodations when comparing ramp 1:5:1 to ramp 6:6 with the latter presenting the highest number of accommodations. conclusion: δf delivery ramp has not influenced accommodation threshold and ramp 1:5:1 had the lowest number of accommodations as compared to ramp 6:6.
Ultra-som terapêutico contínuo térmico em modelo experimental de ciatalgia
Ciena, Adriano Polican;Oliveira, Jaques Jean Junqueira;Cunha, Núbia Broetto;Bertolini, Gladson Ricardo Flor;
Fisioterapia e Pesquisa , 2009, DOI: 10.1590/S1809-29502009000200014
Abstract: therapeutic ultrasound is a physical therapy resource for relieving sciatic pain. the aim of this study was to assess the effectiveness of continuous therapeutic ultrasound in two different power densities (0,5 w/cm2 and 1 w/cm2), on reducing pain in rats submitted to a sciatica experimental model. twenty rats were used, divided into 3 groups: g1 (n=6) submitted to sciatica and placebo treatment; g2 (n=7) submitted to sciatica and treated with 0.5 w/cm2 ultrasound; and g3 (n=7), submitted to sciatica and treated with 1 w/cm2 ultrasound. sciatica was provoked by surgical nerve compression on the right posterior limb of all animals. treatment on the surgical procedure region consisted in ten daily 5-minute sessions, starting on the 3rd postoperative day. pain was inferred by the time of paw elevation (tpe) during gait, measured before the surgery and on five further moments. results showed tpe increase in all groups after surgery; but in both groups actually treated with ultrasound a significant tep decrease was noticed, practically reaching initial values, the decrease being more precocious and intense in g2. continuous ultrasound such as was delivered was hence effective in reducing sciatic pain.
Efeitos da terapia fotodinamica e de uma única aplica??o de laser de baixa potência em bactérias in vitro
Benvindo, Rogério Gubert;Braun, Graziela;Carvalho, Alberito Rodrigo de;Bertolini, Gladson Ricardo Flor;
Fisioterapia e Pesquisa , 2008, DOI: 10.1590/S1809-29502008000100009
Abstract: low-level laser therapy has been used to speed up healing process of pressure ulcers due to its antiinflammatory, analgesic, anti-edematous, and scarring effects. however there is no consensus on its effect on infected ulcers. the aim of this study was to verify the bactericidal effect of low-level laser therapy (ingap, 670 nm) and photodynamic therapy (pdt) at 2, 4 and 6 j/cm2 doses, onto gram-negative and gram-positive bacteria in vitro. thirty two petri plates were prepared, 16 with pseudomonas aeruginosa and 16 with staphilococcus aureus, and divided into eight subgroups each: three subgroups treated with 2 j/cm2, 4 j/cm2, and 6 j/cm2 laser; three subgroups treated with 2 j/cm2, 4 j/cm2, and 6 j/cm2 pdt; one treated solely with photosensitiser; and a non-treated (control) subgroup. laser and pdt groups were irradiated once and incubated for 24 hours; the other two subgroups underwent no irradiation. cultures were visually analysed in search of inhibition haloes. in all subgroups, for both bacteria, no inhibition or growing signs could be detected. hence neither low-level laser or pdt (ingap, 670 nm) produced any bactericidal or bacteriostatic effect, nor any biostimulation effect, onto analysed bacteria.
Análise da eficácia do laser de baixa potência no tratamento da dor tendínea em ratos imunossuprimidos
Busarello, Fernanda de Oliveira;Artifon, Elisangela Lourdes;Loth, Eduardo Alexandre;Bertolini, Gladson Ricardo Flor;
Fisioterapia e Pesquisa , 2011, DOI: 10.1590/S1809-29502011000400007
Abstract: the commitment of immune system, which may be presented by individuals with chronic diseases, leading to a low immune response. one of the treatments used for acute injuries in tendons is the low-power laser, however there is a gap in relation to its use in immunosuppression. the objective of this study was to analyze if low-level laser therapy is effective for the treatment of pain in immunosuppressed rats subjected to trauma tendon. we used 23 male rats of wistar strain, divided randomly in three groups: control group, placebo and laser. the animals were immunosuppressed (by administration of cyclosporin a) and underwent right achilles tendon injury, with impact of about 0.40 j. for treatment, we used low-level laser, 670 nm, 30 mw and 2 j/cm2, during 3 days. pain assessment was performed by the functional incapacitation test and von frey filament digital. the results showed a reduction of functional pain and pressure pain on the plantar surface and the injured site (right achilles tendon) for the laser group. therefore, we concluded that the low-power laser is effective for reducing pain in immunosuppressed rats subjected to trauma tendon.
Compara??o do ultrassom pulsado e contínuo no reparo tendíneo de ratos
Bertolini, Gladson Ricardo Flor;Silva, Taciane Stein da;Ciena, Adriano Polican;Artifon, Elisangela Lourdes;
Fisioterapia e Pesquisa , 2012, DOI: 10.1590/S1809-29502012000300009
Abstract: in tendon injuries treatment, the use of ultrasound appears as a therapeutic option, despite the lack of their clinical effects. the aim was to evaluate two therapeutic ultrasound protocols, continuous or pulsed, on the pain and swelling after tendinous trauma. twenty-one wistar rats were subjected to traumatic injury in the tendon and divided in three groups: sham (gs), continuous ultrasound (guc), and pulsed ultrasound (gup). the injury occurred on right achilles tendon lateral aspect, with energy of 0.40 j. the pain was assessed by the functional disability test and edema by latero-lateral diameter. the evaluations were performed before the injury; after 1 hour of the lesion induction; after the 1st treatment; 2, 8 and 24 hours after injury; and after the 5th day. the treatment was made for 5 consecutive days, with transductor of 1 mhz, for 3 minutes on the trauma site, with a dose of 0.4 w/cm2 sata. the results of functional disability for gs showed increased nociception. for guc, there was increased when comparing evaluation 1 (ev1) with evaluations 2 (ev2), 3 (ev3) and 4 (ev4); comparing ev2 to evaluations 5 (av5) and 6 (av6), there was decreased values. to gup there was increased when comparing ev1 with ev2 and ev3, but when comparing ev2 with the following, there was a significant decrease starting from ev4. edema, treatment groups produced an initial increase with a reduction in recent evaluations. the therapeutic ultrasound produced pain and edema reduction in rats with tendon trauma, and early in the pulsed.
Uso do exercício resistido antagonizado por naloxone como fator de analgesia em sinovite aguda de joelho de ratos Wistar
Bertolini, Gladson Ricardo Flor;Rosa, Camila Thieime;Silva, Lígia Inez;Meireles, Anamaria;Rocha, Bruno Pogorzelski;
Revista Brasileira de Medicina do Esporte , 2012, DOI: 10.1590/S1517-86922012000200013
Abstract: analgesia arising from exercising can occur via release of endogenous opioids in the central nervous system and periphery. however, the literature remains controversial about exercise ways and actions in pain. thus, the aim of this study was to evaluate whether resistance exercise produces changes on the nociception and suffers interference by applying an opioid inhibitor. 18 rats divided into three groups were used: g1 - hyperalgesia on right knee and untreated; g2 - hyperalgesia and treated with jumps in water; g3 - hyperalgesia with previous injection of naloxone and subsequent jumps. to produce hyperalgesia,100 ul of 5% formalin was injected in the tibiofemoral joint space. pain was assessed using a digital von frey filament on the right medial tibiofemoral joint. the evaluation periods were: pre-injury (ev1) after 15 minutes (ev2) and 30 minutes (ev3) and one hour (ev4). the applied exercise was jumping in water and it occurred after ev2. the animal performed 4 sets of 5 jumps, with an interval of 3 minutes and overload of 50% of body weight. in g1, nociceptive increase was observed, with significant decrease and return to initial baseline values in av4; g2 showed threshold restoration after exercise and return to baseline; g3 reduced thresholds, without restoration or significant increase in them. we concluded that there was analgesia with use of exercise and that it was altered by blocking beta-endorphin.
Uso do laser, 670 nm, no quadro álgico de ratos submetidos à modelo experimental de ciatalgia
Cunha, Núbia Broetto;Moesch, Juliana;Mallmann, Juliana Schmatz;Ciena, Adriano Policam;Bertolini, Gladson Ricardo Flor;
Revista Brasileira de Medicina do Esporte , 2008, DOI: 10.1590/S1517-86922008000200006
Abstract: sciatica is caused by the sciatic nerve compression in some point of its course, and its treatment consists of solving the nervous compression cause, either by surgical or conservative treatment. some physiotherapeutic resources act basically in the reduction of the symptoms caused by this disturbance. the aim of this study was to verify the effectiveness of the laser 670 nm, in two different energy densities, in the pain reduction, in rats submitted to a sciatica experimental model. eighteen rats, divided in 3 groups were used: g1 (n=6) submitted to sciatica and simulated treatment (placebo group), g2 (n=6) submitted to sciatica and treated with laser 2 j/cm2, g3 (n=6) submitted to sciatica and irradiated with laser 4 j/cm2. the hamstring nerve of the animals' right hind limb was exposed and compression with catgut thread in 4 points of the nerve was performed. on the 3rd post-operation day, the treatment was begun with laser in the surgical procedure area of the right hind limb for 10 days. the time during which the limb remained on the air was verified through gait in the following periods: previous to the sciatica, before and after treatment. the results have demonstrated that the laser was not effective in the pain reduction; however, with 4 j/cm2 there was positive effect, without complete functionality reestablishment.
Efeitos do laser de baixa potência sobre a dor e edema no trauma tendíneo de ratos
Bertolini, Gladson Ricardo Flor;Silva, Taciane Stein da;Ciena, Adriano Polican;Trindade, Danilo Lopes da;
Revista Brasileira de Medicina do Esporte , 2008, DOI: 10.1590/S1517-86922008000400008
Abstract: during the injured tendons healing process there is the inflammatory phase, which occurs in the presence, among other signs, of pain and edema. the antiinflammatory drug therapy receives some criticism, with respect to its deleterious effects for the repair, thus gain body the use of physical resources for the process control. the aim of this study was to evaluate the use of low level laser therapy on the pain and edema of the rats calcaneus tendon, subjected to experimental trauma. we used 28 rats wistar, divided into four groups: gc - subjected to traumatic injury and the placebo treatment; g2 - subject to injury and irradiated with laser 2 j/cm2; g4 - subject to injury and irradiated with 4 j/cm2; g8 - submitted to injury and irradiated with 8 j/cm2. the lesion was performed with the fall of a weight on the side of the right calcaneus tendon of each animal, with energy of about 0.40 j. the pain was evaluated by the paw elevation time (pet) for a minute, the animal walking on a metal cylinder with 30 cm in diameter at 3 rpm; the edema evaluation occurred through caliper; moments of the evaluation were: after and before injury, before treatment, 2 hours, 8 hours, 24 hours and 5th injury day. treatment with laser 670 nm, was so punctual and daily. the results showed increases in pet and formation of edema in all groups after the injury, and for the groups treated there were reducing the pain and edema, being observed in the control group only with the edema reduction in the 5th placebo day. we concluded that the treatment with low level laser therapy decreased the pain and edema of the animals with tendon trauma, in a dose-dependent manner.
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