Francisco José Berral

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OBJECTIVE To study the effects of three weight-maintenance diets with different macronutrient composition on carbohydrate, lipid metabolism, insulin and incretin levels in insulin-resistant subjects. METHODS A prospective study was performed in eleven (7 W, 4 M) offspring of obese and type 2 diabetes patients. Subjects had a BMI > 25 Kg/m2, waist(More)
The impact of an endurance race on pulmonary pro-oxidative formation and lipoperoxidation was evaluated using exhaled breath condensate (EBC). 3 groups of 12, 12 and 17 healthy recreational runners of both sexes ran 10, 21.1 and 42.2 km, respectively. EBC samples were obtained before the run and at 20 and 80 min post run. Concentrations of H2O2, NO2  - ,(More)
We undertook a prospective pilot study to determine whether arthroscopic surgery through the central compartment of the hip was effective in the management of a snapping iliopsoas tendon. Seven patients were assessed pre-operatively and at three, six, 12 and 24 months after operation. This included the assessment of pain on a visual analogue scale (VAS) and(More)
In a double-blind, placebo-controlled, randomized crossover study, 15 stable mild hyperglycemic patients without treatment and with features of metabolic syndrome were treated with cerivastatin (0.4 mg/day) or placebo for 3 months. The insulin sensitivity index during the euglycemic-hyperinsulinemic clamp (EHC; 5.4 mmol/l; 80 mU x m(-2) x min(-1)) was(More)
A retrospective study was made of 30 stress fractures in elderly patients engaged in noncompetitive sporting activities, mostly marching and running. Fractures were located exclusively in the lower limbs. In many cases the diagnosis was delayed and in several cases was incorrect because the stress fracture was mistaken for other conditions. Given that the(More)
Although current research findings suggest that postural control or static balance is impaired in subjects with low back pain, few studies have specifically addressed the effect of low back pain on static balance in elite athletes. Forty-four athletes belonging to Chilean national teams took part in this study; 20 had low back pain and the remaining 24 were(More)
OBJECTIVE Verify the variables of plantar pressure distribution of patients submitted to surgical procedure for calcaneal fracture, and correlate them with two different surgical approaches. METHOD The authors studied 15 patients between 20 and 53 years of age (average 40.06 yrs.) who had intra-joint calcaneal fractures, submitted to surgical treatment by(More)
OBJECTIVE Our goal is to confirm the hypothesis that people who were born and raised on cities at altitude have a smaller proximal femoral canal. METHODS Prospective study with 169 participants, divided into two groups. Group A: 99 patients who were born and raised at altitude and group B: 70 patients who were born and raised at low altitude. All patients(More)
OBJECTIVE Analyzing suture time, biomechanics (deformity between the stumps) and the histology of three groups of tendinous surgical repair: Brazil-2 (4-strands) which the end knot (core) is located outside the tendon, Indiana (4-strands) and Tsai (6-strands) with sutures technique which the end knot (core) is inner of the tendon, associated with early(More)
INTRODUCTION A good tool to determine the biotype of growing and developing subjects that has been observed is the somatotype (ST). Objetive: This research study aims to describe the ST tendency in Chilean adolescents along the years. METHODS The bibliographic review was carried out using data from Medline, ISI Web of Knowledge, and SciELO. The key words(More)