Medical Express

ISSN (print): 2318-8111

ISSN (online): 2358-0429

Author's Articles

6 result(s) for: Angelica Castilho Alonso

Analysis of velocity and direction of trunk movement in wheelchair basketball athletes

Sileno da Silva Santos; Carlos Bandeira de Mello Monteiro; Bruno Cantelli; Angelica Castilho Alonso; Luis Mochizuki; Alessandro H. Nicolai Ré; Julia Maria D'Andréia Greve


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OBJECTIVE: Postural control of the trunk is important to stabilize the entire body and to generate muscle force during sports activities. When the trunk is stable, it is easier and safer to transfer applied forces along the body to perform any motor task because it enhances muscle action and reduces joint loads. Postural control of the trunk is important to stabilize the entire body and to generate muscle force during sports activities. The aim of this study is to verify the velocity and direction of trunk movement in wheelchair basketball athletes.
METHOD: Participants were 26 wheelchair basketball athletes, they were tested on the NeuroCom Balance Master System, protocol: Rhythmic Weight Shift. They were asked to sway the entire body to the right, left, forward and backward. Trials evaluated these movements in low, medium and high velocities.
RESULT: Movement velocity was very significantly affected by task speed and task direction. The highest movement velocity was observed for the fast task and for the left/right direction. There was no interaction between the task and its direction.
CONCLUSION: Wheelchair basketball athletes moved their body faster in the left/right direction. This result suggests that postural control is direction-dependent for the wheelchair-bound individual.

Keywords: basketball; biomechanics; athletes.

Exposure of pregnant rats to shortwave electromagnetic athermal radiation does not adversely affect their fetuses

Alexandre Buchner de Oliveira; Rosana Alves Lessa; Carlos Alberto dos Santos ; Rodrigo Emmanuel Sabbag da Silva; Angelica Castilho Alonso ; Danielli Souza Speciali ; Julia Maria D'Andréa Greve; Alexandre Sabbag da Silva


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BACKGROUND: The aim of this study was to determine whether shortwave electromagnetic radiation in pulsed mode with a frequency of 45 Hz, promotes teratogenic changes, stillbirths and changes in organ weight at birth in the fetuses of pregnant rats exposed to this radiation.
METHOD: Ten black Macole pregnant female rats were studied, 5 in a test group, subjected to electromagnetic radiation with an average power of 4.5W for 15 minutes, on a daily basis, during the entire period of pregnancy and 5 in a control group that was not exposed to radiation. At day 21, the animals were euthanized for analysis of fetuses. To assess the thermal effect of the radiation the abdominal temperature was measured before and after application, together with prevailing ambient temperature. The fetuses were evaluated through the Galant reflex to assess the existence of stillbirths. The fetuses were removed and weighed; through a midline laparotomy their hearts, stomachs, kidneys and livers were excised and weighed, wet and dry. Twenty-nine fetuses were harvested in the control group and 59 in the test group, with no cases of stillbirth, teratogenesis or malformation of internal organs.
RESULTS: The analysis found no differences in birthweight and weight of dehydrated organs when compared to the control group.
CONCLUSION: The results in our findings suggest that exposure to shortwave therapy without significant heat buildup, does not lead to teratogenic changes and did not affect the mass and weight of dehydrated internal organs.

Keywords: radio waves; pregnancy; teratogenesis; adverse effects.

Risk factors for overuse injuries in runners’ ankles: a literature review

Julia Maria D'Andréa Greve; Nathalie Ferrari Bechara Andere; Natalia Mariana Silva Luna; Alexandra Carolina Canonica; Ticiane Marcondes F. da Cruz; Mark Peterson; Angelica Castilho Alonso


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INTRODUCTION: In spite of the numerous benefits to human health and given the increase of running as an exercise that has become popular worldwide, this type of sport may be the cause of a number of different injuries. The foot, ankle and lower leg comprise almost 40% of the injuries. However, the etiology of these types of injury is still not completely understood.
OBJECTIVE: To investigate the causes of the onset of overuse injury in runners.
METHODS: A systematic search of the electronic database was made: Bireme, Pubmed and PEDro, which were selected that addressed clinical trials, control cases, prospective and cross-sectional studies.
RESULTS: The search through the descriptors yielded 324 references. Using our predefined inclusion criteria (case studies, clinical trials, prospective studies and cross studies that addressed adult runners, amateur or professional) 68 articles remained; 24 citations were excluded after reading the title, and 35 were excluded after reading the abstract and the full text. Therefore nine studies that met the criteria for analysis were included.
CONCLUSION: The etiology of overuse injuries in runners is multifactorial. This review showed that distance, soil type and footwear, as well as a history of previous injuries, biomechanical changes such as increased dorsiflexion and eversion ankle, and greater knee flexion are risk factors that influence the occurrence of these injuries.

Keywords: Ankle; Overuse; Running.

The effect of gait training and exercise programs on gait and balance in post-stroke patients

Luis Mochizuki; Aline Bigongiari; Patricia Martins Franciulli; Juliana Valente Francica; Angelica Castilho Alonso; Ulysses Fernandes Ervilha; Henry Dan Kiyomoto; Julia Maria D'Andrea Greve


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The aim of this review is to evaluate studies about gait training and exercise interventions applied to patients following chronic stroke on gait and balance. The studies included in this review were random clinical trials, including only chronic post-stroke individuals that evaluated gait and balance outcomes and with a PEDro scale score > 7.0. Eight studies were selected. The results suggest gait and balance will only be affected in chronic post-stroke patients if training sessions last at least 30 minutes, are repeated three times a week, and maintained for at least five weeks. Gait training affects how chronic post-stroke individuals walk. They will probably walk faster and with a lower risk of falling; however, it is unclear whether the consequences of these procedures affect the quality of life.

Keywords: Stroke, Locomotion, Balance.

The use of the Gait Deviation Index for the evaluation Post-stroke Hemiparetic Subjects

Carolina C. Alcantara; Angelica Castilho Alonso; Danielli S. Speciali


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BACKGROUND: The Gait Deviation Index, initially conceived to evaluate the gait of children with cerebral palsy, has been used as a quantitative parameter of gait pattern changes of individuals with other conditions. However, there are no studies evaluating changes in the gait pattern of chronic hemiparetic post-stroke subjects based on this index.
AIMS: To characterize the changes in gait pattern according to the Gait Deviation Index and gait spatiotemporal parameters of chronic hemiparetic subjects compared to healthy subjects.
METHODS: Retrospective study. Data were obtained from the database of the Gait Laboratory of Hospital Israelita Albert Einstein. Thirty subjects were included in this study, with previous unilateral, ischemic or hemorrhagic chronic stroke (time post-lesion > 6 months) and ability of walking classified as 2, 3, 4 or 5 according to Functional Ambulation Category. Data from 87 healthy subjects were included in control group, obtained from a normality database. Statistical analysis was applied through the Kruskall Wallis test, followed by Mann-Whitney post-hoc test, considering a critical p value <0.05.
RESULTS: The Gait Deviation Index scores were decreased for both paretic (64.69 ± 16.29) and non-paretic limbs (64.88 ± 15.00) compared to control (101.01 ± 10.12; p < 0.001). No differences were observed in Gait Deviation Index scores between paretic and non-paretic limbs (p > 0.99).
CONCLUSION: The findings of the current study demonstrate that the Gait Deviation Index may be a sensitive parameter to identify changes in the gait pattern of chronic hemiparetic post-stroke subjects.

Keywords: stroke, gait, kinematic, hemiparetic.

Analysis of acceleration time of ankle in long-distance runners and triathletes

Natália Mariana Silva Luna; Angélica Castilho Alonso; Danilo Bocalini; Gabriela Borin; Guilherme Carlos Brech; Júlia Maria D'Andréa Greve


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INTRODUCTION: Adequate muscle reaction time is essential for protecting the joints against injuries during sports activities. This phenomenon of time of acceleration has been investigated through methodologies such as trapdoor experiments and electromyography. However, isokinetic analysis is an assessment method that is more dynamic and shows behavior closer to the functionality of the sport. Sports that involve running, such as long distance running and triathlon, have high lower-limb injury rates, particularly in relation to the ankle joint. The objective of this study was to evaluate and compare isokinetic acceleration and deceleration times of the dorsiflexor and plantar flexor musculature of the ankle in long-distance runners, triathletes and non-athletic individuals.
METHOD: The sample comprised 75 individuals (men aged 18-42 years), divided into three groups: triathlete group, long-distance runner group and control group. The individuals were tested bilaterally on an isokinetic dynamometer. The evaluation modes used were (i) concentric/eccentric for plantar flexion and dorsiflexion, and (ii) eccentric/concentric for plantar flexion and dorsiflexion. We used (a) analysis of variance and Tukey's post hoc test; (b) Kruskal-Wallis and Müller-Dunn post hoc tsts; (c) Chi-square tests.
RESULTS: The acceleration time during concentric contraction was statistically different only between the control group and the long-distance runner group, such that the controls presented faster acceleraton.
CONCLUSION: This may signify a deficiency in their motor sensory control during concentric activity of the dorsiflexors.

Keywords: Isokinetic, Running, Triathlon.