Breast cancer was the most common cancer in women worldwide. The aims of the current systematic review and meta-analysis are: (i) to systematically examine the effects of exercise interventions on mental wellbeing; (ii) to examine the specific effect of the type of supervised exercise and its intensity, volume and frequency on mental wellbeing; and (iii) to explore which interventions are most effective in mental wellbeing among women with breast cancer during active treatment. An electronic literature search was performed using MEDLINE (via PubMed), Embase (Ovid), and Web of Science, we identified 175 full-text articles. The 57 publications included data from 6988 participants, age ranging from 18 to 78 years (weighted mean: 50.85 years). Compared with the control conditions, exercise training programs were associated with significant reductions in anxiety (d = −0.22, I2 = 53.0%), depression (d = −0.24, I2 = 66.6%), and fatigue (d = −0.47, I2 = 69.8%), as well as increases in body image (d = 0.27, I2 = 69.2%) and quality of life (overall, d = 0.46, I2 = 71.6%; emotional function, d = 0.33, I2 = 65.7%; and FACT-B, d = 0.60, I2 = 76.2%). There were a variety of frequencies, intensities, and durations of supervised exercise programs reported in the included meta-analytic approach. In addition, we found that concomitant concurrent training, at moderate-to-vigorous intensity, and with a volume ≥50 min/week had benefits on a number of health outcomes, such as fatigue, depression, and quality of life measure by the FACT-B instrument. These findings have important implications for healthcare providers and multidisciplinary teams involved in mental health management in cancer patients during active treatment.
This paper aims to evaluate the performance of the most significant football teams in Europe. In particular, we have selected all the teams who have participated in the UEFA Champions League (UCL) during the last nine seasons (2004/05 to 2012/13): 94 different clubs in total. We have applied the Data Envelopment Analysis (DEA), a deterministic non-parametric frontier method usually developed in efficiency studies. To solve the problem of measuring sporting results as output in knockout competitions we have proposed the use of the coefficients applied by UEFA from UCL revenue distribution. As far as we know it is the first time that it is analysed efficiency in UCL considering a long period of time and applying revenue distribution as sporting results measurement. These differences from previous studies let us to obtain some interesting results. Firstly, there is a high inefficiency level in UCL on the studied period: only the 9% of the teams seem to be efficient. Also, the teams have many problems to maintain their efficiency during the seasons. Secondly, the champion always is efficient. Thirdly, we have identified two inefficiency sources: waste of sport resources and the selection of sport tactics. Finally, from a methodological perspective, the output measure proposed seems to be suitable to represent reliably the sports results archived by clubs in this qualifying competition type. Some management implications have been suggested to boost efficiency in inefficient clubs. In some cases, clubs might employ better their resources. In other cases, changing tactics is the best solution.
Nowadays game-related statistics in the sports industry are demanded by coaches, players, managers, journalists, supporters, fans, video games developers, betting markets and academics. However, the employment of game-related statistics to analyse performance in football (soccer) has inherent problems given it is a multifaced and complex phenomenon. This study analyses the importance of a large number of possible determinants of sport performance in the "Big Five" European football leagues during the period 2012/13-2014/15. To this end, Bayesian model averaging techniques and relative importance metrics are employed. The results obtained point to the existence of a set of robust determinants in sport performance. This set of drivers consists of (i) the assists, (ii) the shots conceded, (iii) the saves made by the goalkeeper, (iv) the number of precise passes with respect to the total number of passes, and (v) the shots on target. The results of the study support the idea that offensive actions are more relevant than defensive ones. In addition, we find the existence of some performance indicators that have usually been ignored by previous analyses such as the saves made by the goalkeeper and the assists. These findings could help the decision-making process of the coaching, scouting and managerial units of football clubs. Finally, the modelling techniques employed in this context can be generalized to gain knowledge in other fields of knowledge to extract factors affecting complex problems from large data set. This could be particular interesting when previous research has not yet obtained a well-defined and robust set of factors explaining these complex problems.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.