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Background: The menstrual cycle and its impact on training and performance are of growing interest. However, evidence is lacking whether periodized exercise based on the menstrual cycle is beneficial. The primary purpose of this proposed randomized, controlled trial, the IMPACT study, is to evaluate the effect of exercise periodization during different phases of the menstrual cycle, i.e., comparing follicular phase-based and luteal phase-based training with regular training during the menstrual cycle on physical performance in well-trained women. Methods: Healthy, well-trained, eumenorrheic women between 18 and 35 years (n = 120) will be recruited and first assessed for physical performance during a run-in menstrual cycle at different cycle phases and then randomized to three different interventions: follicular phase-based training, luteal phase-based training, or regular training during three menstrual cycles. The training intervention will consist of high-intensity spinning classes followed by strength training. The menstrual cycle phases will be determined by serum hormone analysis throughout the intervention period. Assessment of aerobic performance (primary outcome) and muscle strength, body composition, and blood markers will be performed at baseline and at the end of the intervention. Discussion: With a robust methodology, this study has the potential to provide evidence of the differential effects of exercise periodization during different phases of the menstrual cycle in female athletes. Trial registration: ClinicalTrials.gov NCT05697263 . Registered on 25 January 2023

The board of directors is responsible for governing organizations, including firms’ occupational health and safety (OHS). However, empirical research addressing how boards of directors enact OHS responsibility is scarce. In this study, we explored how boards of directors describe how their board acts to take responsibility for OHS. A secondary aim was to analyze whether those actions represent governance according to the agency theory and/or the stewardship theory. The empirical material consisted of 34 interviews with board members and chief executive officers in large private companies from four industries: trade, construction, manufacturing, and health/social care. Using Boardman and Lyon's framework for OHS governance, we conducted a hybrid thematic analysis. The findings deepen and broaden the current understanding of the role that the board of directors may play in OHS governance in private companies. The boards’ actions for taking responsibility for OHS both represent governance in line with the agency theory and stewardship theory. However, the boards’ actions also underpin a behavioral view of corporate OHS governance. This suggests an influence on the organization that starts with actions in the boardroom and, like champagne in a glass tower, trickles down from the executive directors to other layers of the organization.

Medical experts are one of the main sources used by journalists in reporting on medical science. This study aims to 1) identify problems that medical experts encounter in contacts with the media representatives, 2) elucidate their attitudes about interactions with journalists and 3) reflect on solutions that could improve the quality of medical journalism. By using in-depth interviews, focus groups and a survey directed to 600 medical experts in 21 countries, this cohort study elucidates medical experts' experiences and views on participating in popular media. A strong interest in interacting with the media was identified among the experts, where nearly one fifth of the respondents in the survey claimed that they contacted the media more than 10 times per year. Six obstacles for improving the quality of medical reporting in the media were found: Deadlines, headlines, choice of topic or angle, journalist's level of medical knowledge, differences in professional culture and colleagues' opinions. The main concern among experts was that short deadlines and exaggerated headlines could harm journalistic quality. It is possible that this is partly due to ongoing changes in the media landscape with many new platforms and less control functions. Nevertheless, for several reasons many experts have great interest in interacting with the media, something that could contribute to better communication and fewer misunderstandings. Our results highlight factors like expert networks, media training for scientists and regular meetings that may facilitate communication between medical experts and medical reporters., QC 20191104

Current organic agriculture performs well in several sustainability domains, like animal welfare, farm profitability and low pesticide use, but yields are commonly lower than in conventional farming. There is now a re-vitalized interest in increasing yields in organic agriculture to provide more organic food for a growing, more affluent population and reduce negative impacts per unit produced. However, past yield increases have been accompanied by several negative side-effects. Here, we review risks and opportunities related to a broad range of sustainability domains associated with increasing yields in organic agriculture in the Northern European context. We identify increased N input, weed, disease and pest control, improved livestock feeding, breeding for higher yields and reduced losses as the main measures for yield increases. We review the implications of their implementation for biodiversity, greenhouse gas emissions, nutrient losses, soil fertility, animal health and welfare, human nutrition and health and farm profitability. Our findings from this first-of-its-kind integrated analysis reveal which strategies for increasing yields are unlikely to produce negative side-effects and therefore should be a high priority, and which strategies need to be implemented with great attention to trade-offs. For example, increased N inputs in cropping carry many risks and few opportunities, whereas there are many risk-free opportunities for improved pest control through the management of ecosystem services. For most yield increasing strategies, both risks and opportunities arise, and the actual effect depends on management including active mitigation of side-effects. Our review shows that, to be a driving force for increased food system sustainability, organic agriculture may need to reconsider certain fundamental principles. Novel plant nutrient sources, including increased nutrient recycling in society, and in some cases mineral nitrogen fertilisers from renewable sourc

Background: Women with breast cancer undergoing chemotherapy suffer from a range of detrimental disease and treatment related side-effects. Exercise has shown to be able to counter some of these side-effects and improve physical function as well as quality of life. The primary aim of the study is to investigate and compare the effects of two different exercise regimens on the primary outcome cancer-related fatigue and the secondary outcomes muscle strength, function and structure, cardiovascular fitness, systemic inflammation, skeletal muscle gene activity, health related quality of life, pain, disease and treatment-related symptoms in women with breast cancer receiving chemotherapy. The second aim is to examine if any effects are sustained 1, 2, and 5 years following the completion of the intervention and to monitor return to work, recurrence and survival. The third aim of the study is to examine the effect of attendance and adherence rates on the effects of the exercise programme. Methods: This study is a randomised controlled trial including 240 women with breast cancer receiving chemotherapy in Stockholm, Sweden. The participants are randomly allocated to either: group 1: Aerobic training, group 2: Combined resistance and aerobic training, or group 3: usual care (control group). During the 5-year follow-up period, participants in the exercise groups will receive a physical activity prescription. Measurements for endpoints will take place at baseline, after 16 weeks (end of intervention) as well as after 1, 2 and 5 years. Discussion: This randomised controlled trial will generate substantial information regarding the effects of different types of exercise on the health of patients with breast cancer undergoing chemotherapy. We expect that dissemination of the knowledge gained from this study will contribute to developing effective long term strategies to improve the physical and psychosocial health of breast cancer survivors.