Physical activity and nutrition最新文献

Purpose: This study examined the effects of moderate-to-heavy exercise training combined with weighted vest and chicken protein supplementation in older adult females.

Methods: Fifty-two female participants, 60-79 yearsold, were randomly divided into three groups: control (non-exercise) (CON), exercise with weighted vest (WV), and exercise with weighted vest and protein supplementation (3 g of protein daily; WVP).A ll participants performed brisk walking and strengthening exercises for 50 min/day, three times/week, for 8 weeks. Muscle mass, bone mineral content, T-score, and physical performance were measured.

Results: The WVP group demonstrated a substantial increase in thoracic spine bone mineral content (8.4 ± 7.7 g, p = 0.001), and total body lean mass (0.2 ± 1.0 kg) compared with that in the other two groups. The CON and WV groups showed a decrease in thoracic spine bone mineral content (CON= -1.8 ± 1.8, WV= -3.9 ± 0.1 g) and total body lean mass (CON= -0.7 ± 0.9, WV= -0.8 ± 0.9 kg) compared with those in the WVP group. The WVP and WV groups had increased T-score (WVP= 0.01 ± 0.16, WV= 0.02 ± 0.18) when compared with that of the CON group (-0.19 ± 0.12). Both the WV and WVP groups displayed improved physical performance compared with that of the CON group.

Conclusion: Combined exercise with either a weighted vest or protein supplementation proved to be effective in protecting against trunk bone and muscle mass loss, and improving physical fitness in older female adults.

Purpose: Alcoholic beverages are commonly consumed following athletic competitions and strenuous exercise for celebration or relaxation purposes. Whether and how alcohol consumption influences muscle recovery and perceived pain following unaccustomed eccentric exercise is unclear. We aimed to determine the effects of alcohol consumption after downhill running on muscular strength and perceived pain in East Asian men.

Methods: Twenty-four young men performed 45 min of downhill (-10%) running at a corresponding speed of 70% VO2 max. Immediately after downhill running and again 24 h later, the participants consumed either an alcoholic beverage (1 g ethanol/kg body weight, alcohol group, n=12) or the same quantity of water (control group, n=12).

Results: Peak isometric and concentric muscle contraction torques during knee extension (via the isokinetic dynamometer) and squat jump height decreased 24 h after downhill running (all p<0.05); however, there were no significant differences between the two groups. The visual analog scores for pain (pain scores) in the quadriceps, hamstring, gastrocnemius, and gluteus maximus muscles increased at 24 h and 48 h in both groups (all p<0.05). Pain scores in the quadriceps decreased gradually from 24 h to 48 h in the control group, but no such trend was observed in the alcohol group (group × time interaction effect; F=4.47, p<0.05).

Conclusion: Acute alcohol consumption does not seem to affect muscle strength or jump performance during recovery. However, the effects on pain appear to persist longer after alcohol consumption in East Asian men.

Purpose: The aim of this study was to explore the relationships among physical fitness, formal education levels, social educational experiences, and mild cognitive impairment in older adults.

Methods: Using the Korean version of the mini-mental state examination, senior fitness tests, and questionnaires on social educational experiences and physical activity, the study assessed data on 148 Korean participants 65 years and above. Multiple linear regression analysis was conducted to examine the relationships among the factors.

Results: The average age of the participants was 79.54 ± 0.55 years. Educational level showed a significant negative relationship with cognitive function scores, explaining 17.7% of the variance (R² = 0.177, p < 0.001). Current social educational experiences were significantly associated with a lower prevalence of mild cognitive impairment. Those without current social educational experiences were 1.946 times more likely to have MCI (p < 0.05) than those with such experiences. Physical fitness components, such as right upper body strength (OR = 1.171, 95% CI: 1.001-1.370), agility (OR = 1.246, 95% CI: 0.961-1.616), and cardiorespiratory fitness (OR = 0.975, 95% CI: 0.950-0.999), were also significantly associated with cognitive function. Additionally, older adult men had a higher likelihood of MCI than older adult women did (OR = 0.276, 95% CI: 0.097-0.782).

Conclusion: The findings highlight the importance of education, ongoing social educational experiences, and physical fitness in maintaining cognitive health in older adults. Thus, promoting lifelong education and physical fitness programs may help reduce the risk of mild cognitive impairment in older adults.

Purpose: Archery is a representative sport requiring high levels of concentration. Accordingly, assessing participants' physiological and psychological factors related to tension, anxiety, and stress represents a valuable resource for enhancing performance. This study examines the impact of L-theanine administration on archers' cognitive anxiety levels, salivary alpha-amylase (sAA), and salivary cortisol (sC) in archery competition.

Methods: The study included 18 athletes from women's colleges who participated in the 50-meter individual competition at the 40th president's cup national archery competition in June 2023. Athletes' anxiety levels were assessed on a Likert scale, ranging from 1 "not at all" to 10 "extremely anxious." Saliva samples were collected 30, 20, and 10 minutes before and 20 minutes after the game. Repeated measures of the general linear model ANOVA were performed to compare the mean values of sAA and anxiety level.

Results: Cognitive anxiety levels were significantly reduced in the treatment compared to the placebo group at 10 minutes before the game (p<.05); sAA levels were significantly reduced in the treatment group compared to the placebo group at 20 and 10 minutes before the game (pre-20 and pre-10, respectively); and sC levels were significantly reduced in the treatment compared to the placebo group at 10 minutes before the game (p<.05).

Conclusion: The findings demonstrate that L-theanine treatment is an efficacious intervention for reducing cognitive anxiety, sAA, and sC levels in sports. Therefore, it is recommended to alleviate competitive anxiety in sports requiring high concentration levels such as archery.

Purpose: This research focused on examining how an 8-weeks intervention of high-intensity (HIAE) and moderate-intensity aerobic exercise (MIAE) influenced body composition, β-amyloid (Aβ) levels, metabolic markers (glucose, insulin, and HOMA-IR), and blood lipid profiles (total cholesterol [TC], triglycerides [TG], low-density lipoprotein-cholesterol [LDL-C], and high-density lipoprotein-cholesterol [HDL-C]) in obese middle-aged women.

Methods: Thirty obese middle-aged women (body mass index [BMI] ≥ 25 kg/m2, body fat ≥ 30%) were randomly divided into three groups: HIAE, MIAE, or control groups (n = 10 per group). The exercise groups performed aerobic exercise three times per week for 8 weeks at an intensity of 80-85% (HIAE) and 60-65% (MIAE) of VO2max. Body composition, Aβ levels, metabolic markers, and blood lipid profiles were measured before and after the intervention. A two-way repeated-measures analysis of variance (ANOVA) was applied to analyze the data and determine interaction effects.

Results: Both the HIAE and MIAE groups showed notable reductions in body weight, body fat percentage, BMI, Aβ, glucose, insulin, HOMA-IR, and all blood lipid variables over time compared to the control group (p < 0.001). Significant time-by-group interaction effects were observed for each variable, with HIAE resulting in greater reductions in TC, TG, and LDL-C, and greater increases in HDL-C. Post hoc analyses showed a substantial rise in HDL-C levels for the HIAE group compared to the control group (p = 0.000), with a trend toward greater increases than in MIAE (p = 0.058).

Conclusion: HIAE and MIAE interventions effectively improved metabolic and cognitive health markers in middle-aged women with obesity. These findings emphasize the dose-response effects of exercise intensity, with HIAE offering greater benefits for lipid control and Aβ reduction.

Purpose: The main objective of this study is to examine and highlight the substantial impact of integrating Internet of Things (IoT) technology and biosensors in the healthcare sector, focusing on their potential to drive substantial advancements and improvements in healthcare. Emphasis is placed on tackling the global challenge posed by chronic diseases by proposing an all-encompassing healthcare system that facilitates real-time monitoring, early detection, and remote management of these conditions. Chronic diseases, distinguished by their prolonged duration and gradual progression, have emerged as a marked challenge for healthcare systems worldwide. This paper seeks to illustrate how biosensors, with the capability to identify specific biomarkers, can play a pivotal role in delivering personalized patient care, enhancing outcomes, and mitigating healthcare expenses.

Methods: This review was conducted using a systematic and comprehensive approach to analyze the integration of Internet of Things (IoT) technology with biosensors for real-time monitoring and early detection of chronic diseases. Relevant literature was sourced from reputable databases, including IEEE Xplore, PubMed, and Elsevier's ScienceDirect, focusing on studies published between 2014 and 2024. Keywords such as "IoT in healthcare," "biosensors for chronic diseases," and "real-time monitoring systems" guided the selection process. This review included original research articles, review papers, and case studies, which were critically analyzed to assess current advancements, challenges, and future directions in this interdisciplinary field. The findings were synthesized to provide an in-depth understanding of how IoT-enabled biosensors are transforming healthcare, particularly in chronic disease management.

Results: This research explores the integration of IoT and biosensors for real-time monitoring of chronic diseases. The combination offers personalized healthcare, early detection, and cost reduction. Applications include remote patient monitoring, cardiac health, glucose management, and elderly care. Despite challenges, ongoing advancements promise to optimize accuracy, efficiency, and ethical soundness, ushering in a patient-centric healthcare era.

Conclusion: The integration of IoT-enabled biosensors approach to addressing global challenges posed by chronic diseases. This study highlights the potential of this convergence in healthcare by facilitating real-time monitoring, early detection, and personalized care. By surpassing limitations of traditional monitoring systems, IoT-enabled biosensors provide continuous insights into patients' health, enabling proactive interventions. Their applications are demonstrated in diverse domains, including remote monitoring, cardiac health, glucose management, and elderly care, showcasing their role in advancing precision medicine and improvi

Purpose: This case report evaluates changes in body composition, physical fitness, and quality of life in a patient with Guillain-Barre syndrome (GBS) undergoing training with an end-effector gait robotic device.

Methods: A 35-year-old man with GBS completed interval training using a robotic gait assistant three times weekly for four weeks. The training intensity was set at 70-75% (Phase 1) and 80-85% (Phase 2) of the target heart rate, calculated using the heart rate reserve. Evaluations included body composition, physical fitness, isometric strength, gait performance, and quality of life indices.

Results: Post-intervention, improvements were observed across all parameters. Body weight increased by 1.2%, while body fat percentage and visceral fat decreased by 5.4% and 3.7%, respectively. Muscle mass increased by 3.3%, and isometric strength improved at all tested sites. Gait speed increased from 0.7 to 1.8 km/h (157.1%), and the number of steps per minute increased from 33 to 77 (133.3%). The timed up-and-go (TUG) test improved by 7.1%, and exercise self-efficacy (ESE) scores increased by 29.1%.

Conclusion: These findings align with the principles of neuromuscular adaptation, motor learning, and neuroplasticity. Interval training with a robotic gait device may effectively restore physical function and improve quality of life in patients with GBS. However, the limitations of this single case study highlight the need for randomized controlled trials with larger cohorts and long-term effectiveness assessments.

Purpose: Despite the promising health benefits of finger millet, there is a notable lack of research specifically examining its effects on athletes' mental health. Therefore, the present narrative review aimed to explore the potential of finger millet (Eleusine coracana) in enhancing the mental health status of athletes.

Methods: For this narrative review databases like "PubMed," "SPORTDiscus," "Scopus," "ProQuest" and "Google Scholar" were referred to identify and analyze the studies to determine their relevance and findings.

Results: Studies have shown that nutritional intervention has a significant impact on mental health through improved mood, cognitive function, and overall well-being. Finger millet is a valuable reservoir of vital nutrients , including amino acids, vitamins, minerals, and antioxidants, which play crucial roles in reducing oxidative stress and cortisol levels, which are key factors in mental health disorders. Furthermore, low glycemic index and high dietary fiber content of finger millet contribute to stable blood sugar levels, which are crucial for maintaining mental stability and preventing stress-induced cortisol spikes. Dietary fiber in finger millet also helps in boosting the gut microbiota, which helps in stimulating mental and cognitive health through the gut-brain axis.

Conclusion: Given the physical and psychological demands on athletes, incorporating finger millet into their diets could offer a holistic approach for improving both performance and mental well-being. Despite these promising findings, the specific effect of finger millet on athletes' mental health remains unclear. This review highlights the need for more focused research on this topic, emphasizing the potential of finger millet as a na-t ural dietary intervention to enhance mental health and stress management in athletes. We conclude by calling for more comprehensive studies to fully understand the mechanisms and benefits of finger millet in athletic populations, aiming to bridge the current gap in the literature and pave the way for evidence-based dietary recommendations.

Purpose: Sarcopenia, characterized by the age-related loss of muscle mass and function, is a multifactorial condition influenced by oxidative stress, hormonal changes, and chronic inflammation. This study investigated the effects of resistance exercise and nutritional interventions, including antioxidants, such as monoterpenes, on sarcopenia prevention and treatment.

Methods: To identify relevant studies, a comprehensive literature search was conducted using electronic databases including PubMed and Google Scholar. Keywords such as "sarcopenia," "resistance exercise," "antioxidants," "nutrition," "muscle regeneration," and related terms were utilized to gather evidence on the prevention and management of sarcopenia.

Results: This review focuses on the etiological factors of sarcopenia, particularly the decline in muscle function and acceleration of muscle protein degradation. This highlights the critical importance of the combined effects of exercise and nutrition in overcoming these challenges, with special emphasis on the potential of antioxidant intake as a promising solution for managing this condition.

Conclusion: An integrated approach combining periodic resistance exercise with antioxidant-rich nutritional strategies is essential for the management of sarcopenia. By promoting muscle development and inhibiting protein breakdown, this dual strategy provides an effective framework for preventing and treating sarcopenia, and improving quality of life of the aging population. Further studies are warranted to explore the clinical potential of monoterpenes in the treatment of sarcopenia.

Purpose: Physical activity is widely recognized for its physical and mental health benefits that are significant for international students who often encounter environmental and cultural challenges. This study aimed to assess the physical activity levels and changes among Chinese international students in South Korea and identify the factors associated with these changes.

Methods: The study included 192 Chinese students from a single university, recruited via an anonymous survey link on WeChat that collected data on sociodemographics, health behaviors, acculturative stress, depression, and social support. Physical activity levels were assessed using the Global Physical Activity Questionnaire and changes in physical activity in South Korea were also evaluated. Multivariate multinomial logistic regression analysis was used to identify factors associated with decreased and increased physical activity among the students.

Results: Among the participants, 33.9% indicated decreased physical activity, whereas 29.7% reported increased physical activity compared with their home country. Barriers include academic stress, time constraints, and unfamiliar environments, whereas facilitators include exercise facility accessibility and support from others. Increased physical activity was positively associated with older age, weight changes, and recreational activities. Poor self-health perception was positively associated with reduced physical activity, whereas perceived discrimination and transportation-related physical activity were negatively associated with reduced physical activity.

Conclusion: Changes in physical activity levels and their associated factors among Chinese international students in South Korea were revealed. Multidimensional factors must be addressed to improve physical activity levels, especially considering the challenging circumstances faced by international students.