The aim of this study was to compare the lactate (La) removal during active recovery at three different work rates below the individual anaerobic threshold (IAT). Recently, it has been recommended that exercise intensity should be determined in relation to the IAT instead of the percentage of maximal oxygen uptake ( V(.)O(2max)), especially for training and research purposes. Therefore, we defined the recovery work rates by calculating 50% of the threshold difference (Delta T) between the IAT and the individual ventilatory threshold (IVT) work rates, then choosing the IVT(+50%DeltaT), the IVT and the IVT(-50%DeltaT). All these work rates fell within the range (30-70% V(.)O(2max)) previously reported for optimal La removal. After a 6-min treadmill run at 90% V(.)O(2max), soccer players [ n=12 male, age 22 (1) years] performed, in a random order, four 30-min recovery treatments: (1) run at IVT(+50%DeltaT), (2) at IVT, (3) at IVT(-50%DeltaT), (4) passive recovery. La was obtained at 1, 3, 6, 9, 12, 15, 20, 25 and 30 min of recovery. The La removal curve was significantly affected by treatments ( P<0.01) and recovery timing ( P<0.01), with a significant interaction between them ( P<0.01). Although they were more efficient than passive recovery, the studied work rates [between 39 (7) and 60 (4)% V(.)O(2max)) produced different lactate removal curves. IVT and IVT(-50%DeltaT) were significantly more efficient than IVT(+50%DeltaT), while no difference was found between IVT and IVT(-50%DeltaT) for any time point. In conclusion, both IVT(-50%DeltaT) and IVT were efficient individual work rates for La removal, and no further La decrease occurred after 20 min.

Eur J Appl Physiol (2004) 93:224-230 In the pdf version and in the printed article, the following abbreviations were incorrect:The correct versions are respectively: The online version of the original article can be found at http:// dx

No abstract

Based on a survey sent to Portuguese centers that perform diagnostic and interventional electrophysiology and/or implantable cardioverter-defibrillator (ICD) implantations, the authors analyze the number and type of procedures performed during 2012 and compare these data with previous years.In 2012, a total of 2561 diagnostic electrophysiologic studies were performed, which were followed by ablation in 2017 cases, representing a steady situation compared with the previous year. There was a 12% increase in the number of ablation procedures for atrial fibrillation, making it for the first time the most frequent indication for ablation, overtaking atrioventricular nodal reentrant tachycardia.The total number of first ICD implantations was 1048 (around 100 per million population), of which 375 were cardiac resynchronization devices (BiV ICDs). This represents a slight decrease (3.3%) in the total number of new implants, with a relative increase of 10% in the number of BiV ICDs compared to the previous year. However, there was a considerable increase in the number of ICD generator replacements, resulting in an overall increase of 3.5% in implantations performed in 2012.Some comments are made regarding developments in this activity and its current status, and on some factors that may influence the dynamics of this area of interventional cardiology. Document downloaded from http://www.elsevier.pt, day 04/12/2014. This copy is for personal use. Any transmission of this document by any media or format is strictly prohibited. 584M. Oliveira et al. O número total de primeiras implantações de CDI foi de 1.048 (cerca de 100/milhão de habitantes), sendo que, destes, 375 eram CDI com ressincronização ventricular (CDI BIV). Estes dados traduzem um ligeiro decréscimo (3,3%) do número de primeiras implantações, com um aumento relativo de 10% no número de CDI BIV face ao ano anterior. No entanto, verificou-se um crescimento muito significativo no número de substituições de geradores de CDI, de que resultou um acréscimo de 3,5% no total de implantações efetuadas em 2012. São feitas algumas considerações acerca da evolução e estado atual desta atividade hospitalar e sobre alguns fatores que poderão influenciar a dinâmica verificada nesta área da cardiologia de intervenção. PALAVRAS-CHAVE

We report a case of a 43-year-old man with situs inversus and dextrocardia who was admitted with syncope in the setting of complete atrioventricular block. The complex anatomy poses a considerable challenge to transvenous permanent pacemaker implantation. We employed a novel technique using vascular ultrasound and agitated saline solution to assist with lead positioning. This technique could be useful in pediatric populations or younger patients, in whom the use of ionizing radiation is an important issue.