This study was designed to adapt the Breast Cancer and Lymphedema Symptoms Experience Index (BCLE-SEI) to the Spanish language (BCLE-SEI-Es) and to assess its psychometric properties in Spanish-speaking women diagnosed with breast cancer. 286 breast cancer survivors were recruited. Study measured demographic and medical data and the BCLE-SEI. Reliability was measured using Cronbach’s alpha and test-retest reliability (n = 29) after an interval of two weeks. A robust principal components analysis was conducted to explore the dimensions of each BCLE-SEI-Es subtest. Discriminant power of the BCLE-SEI was assessed through a non-parametric test evaluating score differences between non-lymphedema and lymphedema patients. A cut-off point was established via a ROC curve. Cronbach’s alpha: all scales had a value above 0.9. Test-retest reliability: Correlations between questionnaire administrations were above 0.7. The first and second subtests showed a good fit to a unidimensional and two-factor structure, respectively. Lymphedema patients score significantly higher in all BCLE-SEI scales (p < 0.001). A cut-off point was established to predict a possible lymphedema case. The BCLE-SEI-Es is a valid, reliable tool for assessing and identifying the presence of lymphedema among breast cancer survivors and assessing its impact on the physical, functional, psychological and emotional aspects.
An optimal state of hydration is essential to maintaining health. The objective of this cross-sectional study was to evaluate the water intake of adolescents aged 12 to 16 years and their hydration level during an official soccer match. Three hundred and six players participated in the study (N = 306). Their water intake was recorded and the level of hydration was evaluated using the density of urine as an indicator. Weight measurements were made before and after the match. Water intake control, urine collection and analysis, and the recording of minutes played were carried out after the match. The average weight loss was 746.2 g (SD: 474.07; p < 0.001), with 36.5% with less than 1% loss and 23.3% with more than 2% loss. The mean volume of water ingested was 229.35 ml (SD: 211.11) and a significant correlation was observed between minutes of activity (ρ-value = 0.206; p < 0.001), environmental humidity (ρ-value = - 0.281; p < 0.001), and temperature (ρ-value = 0.200; p < 0.001). The sweat rate was 0.69 l/h (SD: 0.56) and it was significantly associated with playing time (ρ-value = -0.276; p < 0.001). The mean urine density was 1.019 (SD: 0.007), with 64.9% of youth athletes showing dehydration (≥ 1.020). An association was observed between dehydration and activity time (U- value = 4.124; p < 0.001). Approximately 10% of the participants stated that they had not drunk any water during the match. In conclusion, it is necessary to establish individual hydration guidelines based on personal, environmental and activity-related factors, as well as establish a minimum volume of fluids to consume.
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