درخت حوزه‌های تخصصی

The aim of this research is to examine the impact of drivers and values associated with luxury sports brands on consumer behavior, considering different levels of brand equity. The study adopts a correlational design with practical implications. The target population includes all customers of luxury sports brands in Mazandaran province. Based on the Krejcie and Morgan table, a statistical sample size of 384 was determined for a large population. To achieve this sample size, 420 questionnaires were distributed, and 392 valid responses were analyzed. Data collection was conducted using a quantitative approach through the administration of four researcher-developed questionnaires, which assessed stimuli, luxury brand values, consumer behavioral reactions, and brand equity. The validity of the questionnaires was established via factor analysis, while reliability was confirmed using Cronbach's alpha. The data were analyzed using both descriptive and inferential statistics. Descriptive statistics were employed to characterize the statistical population, examine the frequency and distribution of data, define variables, and generate related charts and tables. Hypothesis testing, model construction, and other necessary analyses were performed using LISREL for factor analysis and SPSS for inferential statistics, alongside model fitting software. The findings reveal that the values associated with luxury sports brands significantly influence consumer behavior, contingent on varying levels of brand equity. It is recommended that managers of organizations and companies involved in producing both sports and non-sports brands focus on enhancing brand equity by offering high-quality luxury products that create positive experiences and appeal for consumers.

Fatigue is a common and debilitating symptom among older adults, significantly impacting their quality of life and functional capacity. The relationship between serotonin and fatigue in aging is complex, involving multiple neurobiological pathways that influence sleep, mood, cognitive function, and energy metabolism. Understanding these mechanisms is crucial for developing effective management strategies. This review aims to elucidate the role of serotonin in the development of fatigue in elderly individuals and evaluate potential therapeutic strategies to mitigate this condition. A comprehensive review of recent literature was conducted, focusing on the neurobiological mechanisms linking serotonin to fatigue, the efficacy of pharmacological and non-pharmacological interventions, and future research directions. Studies were selected based on their relevance to serotonin’s role in aging and fatigue management. Serotonin plays a critical role in regulating various physiological and psychological functions that impact fatigue. Age-related declines in serotonin synthesis, receptor sensitivity, and transporter function contribute to increased fatigue through disrupted sleep, mood disorders, cognitive decline, and altered energy metabolism. Pharmacological treatments, including selective serotonin reuptake inhibitors (SSRIs) and serotonin-norepinephrine reuptake inhibitors (SNRIs), have shown efficacy in alleviating fatigue related to depression and chronic pain. Non-pharmacological interventions, such as cognitive behavioral therapy (CBT), exercise, sleep hygiene, and dietary modifications, are also effective in managing fatigue. Combining these approaches may offer the best outcomes for elderly patients. Addressing fatigue in older adults requires a multifaceted approach that integrates both pharmacological and non-pharmacological strategies. Personalized treatment plans considering individual patient profiles and preferences can enhance therapeutic efficacy. Future research should focus on exploring novel therapeutic targets within the serotonergic system, developing personalized medicine approaches, and evaluating the long-term impact of combined therapies.

The purpose of this research is to develop a strategic marketing plan for the Lifeguard and Diving Federation of the Islamic Republic of Iran. The current research is a mixed study with the strategic approach. By conducting a combined method including expert opinion, review of valid documents, and using some matrices related to the formulation of a strategic plan, the formulation of a strategic plan for the marketing of the Lifeguard and Diving Federation has been discussed. The research participants included 15 members of the Board of Directors of the Lifeguard and Diving Federation, managers and sports marketing specialists. In quantitative phase, the measurement tool consisted of a researcher-developed questionnaire that was designed and adjusted using the Delphi method. According to the final score of the evaluation matrix of internal factors (2.47) and the evaluation matrix of external factors (2.44), it was determined that the strategic marketing position of Lifeguard and Diving Federation was in the WT position. The results of SWOT analysis have led to the formulation of 3 SO strategies, 3 ST strategies, 3 WO strategies, and 4 WT strategies. 13 strategies to fulfill the mission of the long-term marketing goals of the federation have been developed and an operational plan has been prepared for each of them. It was concluded that the lifeguard and diving federation needs to use defensive strategies and close to the competitive area (ST) in the field of action. 

Purpose: The aim of this study was to investigate the acute effects of HIFT exercise, on creatine kinase (CK) and lactate dehydrogenase (LDH) in blood serum in overweight adult men. Method : Twenty-two untrained non-smoker overweight men (age, 42.9 ± 5.6 years; body mass, 94.2 ± 9.3 kg; body height, 178.9 ± 4.5 cm; and BMI, 29.04 ± 3.3 kg/m2) volunteered to participate in this study and performed a session of HIFT exercise with 80-85% HRmax consisting of three sets of 10 exercises. Blood samples were collected before and immediately after training to measure serum CK and LDH levels. Results: The HIFT protocol significantly increased serum CK (Pre: 114.6 U/L; Post: 124.3U/L; p< 0.05{t=-5.48, p=0.001}); Also, LDH had a significant increase (pre:213.4 U/L, post: 225.4U/L; p<0.05{t=-4.09, p=0.001}). Conclusion: It can be concluded that HIFT with AMRAP (as many repeats as possible) protocol will lead to a significant increase in some indicators of muscle damage such as CK and LDH levels in overweight men. This protocol can lead to muscle damage in overweight men.

Purpose: This study aimed to investigate the effect of a pulmonary rehabilitation exercise program on post-COVID-19 patients. Method : Three patients (two women and one man) with different severities, from moderate to severe, were selected. Blood pressure, heart rate, blood oxygen, and body function were measured at the beginning and end of the exercises, which included 12 sessions of arm and leg cycle ergometer and treadmill with adjustable resistance levels. Patients’ functionality was assessed using the Barthel index, and their quality of life was assessed using the SF-36 questionnaire. Results: Regarding the first patient, oxygen saturation increased from 85 to 95, the 6-minute walk test (6MWT) result increased from 0 to 420 meters, and the Barthel index increased from 35 to 85. For the second patient, arterial oxygen saturation increased from 82 to 92, the 6-minute walk test (6MWT) result increased from 0 to 390 meters, and the Barthel index increased from 30 to 90. For the third patient, arterial oxygen saturation increased from 87 to 96, the 6-minute walk test (6MWT) result increased from 320 to 510 meters, and the Barthel index increased from 60 to 85. All the patients showed improvements in their physical functions, such as walking, personal affairs, and quality of life. This functional improvement was higher in more severe levels of the disease. Conclusion: Based on the results, it seems that pulmonary rehabilitation exercises for post-COVID-19 patients can contribute to the improvement of their status, arterial oxygen level, quality of life, and pulmonary functionality.