Loading...
3 results
Search Results
Now showing 1 - 3 of 3
- Applicability of the Dibh technique in patients with breast cancer undergoing radiation therapyPublication . Afonso, Carlos; Fernandes, Paulo; Santos, João Valente dosIntroduction Radiotherapy is used to treat breast cancer. The administration of treatment with DIBH makes it possible to remove the organs at risk from the area to be treated. Thus, it is possible to reduce future complications. The lack of respiratory training, anxiety and patient stress are some factors that can compromise the correct execution of apnea, making the treatment more time consuming. The aim of this work is to study the applicability of the DIBH technique in patients undergoing radiation therapy and to create a respiratory training protocol. Methodology A bibliographic search was carried out with consultation of databases and digital libraries. A questionnaire was applied to 34 radiotherapy technicians with functions in the treatment unit and CT planning. The questionnaire was released by professional associations and radiotherapy services. Results / Discussion: According to the interviewees and the consulted bibliography, DIBH is mainly applied in the treatment of left breast tumors. It is associated with an increase in treatment time and patient anxiety. According to respondents, anxiety and difficulties initially presented by patients, when performing DIBH, tend to disappear during treatment sessions. Final considerations The breathing training session allows the patient to become familiar with the breathing technique. During the training session, the patient should be provided with feedback on his breathing in order to proportionate the improvement of the DIBH. The training should be carried out at home, before the planning CT, as many times as possible.
- Dynamics of training and competition demands in top-class male rink hockey : a case study of a rink hockey European ChampionshipPublication . Ferraz, António; Duarte-Mendes, Pedro; Ribeiro, João Nuno; Yousefian, Farzad; Santos, João Valente dos; Travassos, BrunoThis study aimed to investigate the training load through external and internal load dynamics across the preparation and competition of a top-level national team during a Rink Hockey European Championship. A non-experimental descriptive method was developed. A two-way mixed design ANOVA and a Spearman correlation test were used to compare and understand the relationship between players’ external and internal load across microcycles during training sessions and competitive matches. Results revealed significantly higher values between training match day −3 to training match day −1 for player load (p ≤ 0.05), distance covered, and high-speed skating (p ≤ 0.001). Competition weeks exposed significantly higher values in comparison with training weeks. Interestingly, during competition, high impacts (p ≤ 0.001, r = 0.64) and decelerations (p ≤ 0.001, r = 0.43) had a greater influence on players’ session RPE than in training weeks. Different external and internal load dynamics were observed in the competition and training weeks, with high impacts and decelerations appearing to create a physiological impact on players, but the same does not occur in the training sessions. Results highlight the need to understand the competitive dynamics of each sport and the use of the most appropriate metrics to monitor the preparation process.
- Agreement between dual x-ray absorptiometers using pencil beam and fan beam: indicators of bone health and whole-body plus appendicular tissue composition in adult athletesPublication . Tavares, Óscar; Duarte, João; Costa, Daniela C.; Silva, P. Sousa e; Martinho, Diogo V.; Lus, Leonardo; Duarte-Mendes, Pedro; Santos, João Valente dos; Conde, Jorge; Casanova, José; Cyrino, Edilson S.; Silva, Manuel Coelho eOBJECTIVE: The current study was aimed to examine intra-individual variation on indicators of bone health in addition to whole-body plus appendicular tissue measurements using two concurrent assessments based on pencil beam and fan beam dual energy X-ray absorptiometry (DXA) systems in adult athletes from several sports. METHOD: Thirty-two male participants (27.6±10.1 years) were measured on anthropometry including multifrequency bioelectric impedance and air-displacement plethysmography. Bone mineral content (BMC), bone area, fat and lean soft tissue were derived using pencil beam (Lunar DPX-MD+) and fan beam (Lunar iDXA) absorptiometry. Bone mineral density (BMD) was obtained for the femoral neck, trochanter and triangle of ward. Finally, the right thigh was defined as a region of interest (ROI). Analyses comprised intra-class correlation (ICC), Effect size (d) from mean differences of repeated measurements, coefficient of variation (CV) RESULTS: ICC were >0.900 for all measurements. Intra-individual differences were large for BMC (d=1,312; CV=2,7%), bone area (d=1,761; CV=2,7%), fat tissue (d=1,612; CV=11%) and all indicators of appendicular lean soft tissue (d=1,237-1687; CV=2,0-4,1%). A very large difference (d=4,014; CV=8.4%) was diagnosed for lean soft tissue of the ROI. CONCLUSION: Although differences among concurrent instruments for BMC and bone area, the effect size of mean differences was negligible for BMD. Fat and lean soft tissue derived from DXA should be interpreted as reference values (not criterion) due to equipment-related variation, more apparently in the ROI values.