Long-term neurological damage as a result of head trauma while playing sports is a major concern for football athletes today. Repetitive concussions have been linked to many neurological disorders. Recently, it has been reported that repetitive subconcussive events can be a significant source of accrued damage. Since football athletes can experience hundreds of subconcussive hits during a single season, it is of utmost importance to understand their effect on brain health in the short and long term. In this study, resting-state functional magnetic resonance imaging (rs-fMRI) was used to study changes in the default mode network (DMN) after repetitive subconcussive mild traumatic brain injury. Twenty-two high school American football athletes, clinically asymptomatic, were scanned using the rs-fMRI for a single season. Baseline scans were acquired before the start of the season, and follow-up scans were obtained during and after the season to track the potential changes in the DMN as a result of experienced trauma. Ten noncollision-sport athletes were scanned over two sessions as controls. Overall, football athletes had significantly different functional connectivity measures than controls for most of the year. The presence of this deviation of football athletes from their healthy peers even before the start of the season suggests a neurological change that has accumulated over the years of playing the sport. Football athletes also demonstrate short-term changes relative to their own baseline at the start of the season. Football athletes exhibited hyperconnectivity in the DMN compared to controls for most of the sessions, which indicates that, despite the absence of symptoms typically associated with concussion, the repetitive trauma accrued produced long-term brain changes compared to their healthy peers.

With growing evidence of long-term neurological damage in individuals enduring repetitive head trauma, it is critical to detect lower-level damage accumulation for the early diagnosis of injury in at-risk populations. Proton magnetic resonance spectroscopic scans of the dorsolateral prefrontal cortex and primary motor cortex were collected from high school American (gridiron) football athletes, prior to and during their competition seasons. Although no concussions were diagnosed, significant metabolic deviations from baseline and non-collision sport controls were revealed. Overall the findings indicate underlying biochemical changes, consequential to repetitive hits, which have previously gone unnoticed due to a lack of traditional neurological symptoms.

Sub-concussive head impacts are identified as a source of accrued damage. Football athletes experience hundreds of such blows each season. Resting state functional magnetic resonance imaging was used to prospectively study changes in Default Mode Network connectivity for clinically asymptomatic high school football athletes. Athletes exhibited short-term changes relative to baseline and across sessions.

Purpose – This study aims to know the present structure and move of the Islamic banks of Pakistan as well as current issues and challenges for Islamic microfinance. However, this is based on perceptions of the Islamic bankers, regulators and micro-entrepreneurs and petty traders, as they are the key players in the credit market. Design/methodology/approach – The study gathered relevant information through conducting field survey. Two questionnaires were designed for the survey. One questionnaire was administered to survey 270 micro-entrepreneurs and petty traders in three major cities of Pakistan. Another survey deals with the perceptions of Islamic bankers. In total, 100 people from middle and top management were surveyed from five full-fledged Islamic banks of Pakistan. The SPSS software, version 16, was used for questionnaire reliability and descriptive analysis to analyse the data. Findings – In general, the study found the strong opinions of the respondents speak in favour of Islamic microfinance under a system of profit and loss sharing. Conversely, the majority of the clients also feel that Islamic banks do not encourage lower-income micro-entrepreneurs. In addition, the study found that Islamic microfinance is constrained by lack of knowledge, experience and professionalism of the supporting staff; however, Islamic bankers have shown great consensus that Islamic banks should offer Islamic microfinance products and instruments to respond to the needs of the poor for poverty alleviation. Research limitations/implications – The first limitation of the study is the meagre interest of micro-entrepreneurs and petty traders to participate in the survey. The second limitation of this work concerns the extremely busy schedule of top management and administrative impediment to approach and fix an appointment. Despite these limitations, the findings of this study provide insights to Islamic banks in diversifying their products by offering Islamic microfinance to the low-income entrepreneurs but with proper guidelines and policies. Practical implications – There is a need to educate the community towards the merits of Islamic banking system by developing a good information system using good visuals and professionally presented seminars, banners and arranging regular sessions with the business community. The growth and development of Islamic banking in the country largely depend on its customers’ enhanced knowledge and awareness about its products and services. Social implications – It is the responsibility of the community as well as of government to change the mindset of the poor that banks are meant to serve the interest of everybody, regardless of social, economic and political status. Originality/value – Theoretically, this study contributes to the existing body of knowledge in the area of Islamic microfinance by examining the perceptions of Islamic bankers and micro-entrepreneurs. This can help Islamic banks of Pakistan to design and formulate new administrative as well as operational procedures to serve the interest of the poor with commitment towards Islamic values.

No abstract