Sports and Exercise Medicine – Open Journal最新文献

{"title":"Effect of Rhodiola Rosea Supplement on Exhaustive Swimming Test and Physical Fatigue in Male Institute of Cancer Research Mice","authors":"Wan-Li Chu, Mon-Chien Lee, Y. Hsu, Chi-Chang Huang, Yu-Jou Chien","doi":"10.17140/semoj-9-189","DOIUrl":"https://doi.org/10.17140/semoj-9-189","url":null,"abstract":"Background Fatigue decreases exercise performance, and affects work capacity and quality of life. Functional supplement use is one of the common methods to alleviate fatigue. Rhodiola rosea (RHR) exerts antioxidative and anti-inflammatory effects due to its rich glycosides and has the potential to resist fatigue. Therefore, this study aims to investigate the effects of the RHR supplement on physical fatigue induced by exhaustive swimming exercise. Methods Forty institute of cancer research (ICR) mice were divided and assigned to one of four treatment groups (0, 600, 1200, and 3000 mg/kg body weight), with 10 animals in each group. After four weeks of RHR supplement intervention, swimming tests were conducted to assess exercise endurance, the accumulation of blood fatigue markers, and tissue glycogen storage. Results The results showed that after four weeks of the RHR supplement intervention, the exhaustive swimming time significantly increased in three treatment groups with a dose-dependence effect. The accumulation of blood fatigue substances (lactate, blood urea nitrogen (BUN), creatine kinase (CK) was significantly decreased, and glycogen content in the liver and muscle was elevated. Conclusion RHR supplements possess the capacity to enhance exercise performance and prevent exercise-induced fatigue. It is suitable to develop an RHR supplement as a dietary supplement for anti-fatigue.","PeriodicalId":286240,"journal":{"name":"Sports and Exercise Medicine – Open Journal","volume":"62 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139146503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physical Activity Motives in the Exercise and Self-Esteem Relationship","authors":"Jason P. Willow","doi":"10.17140/semoj-8-185","DOIUrl":"https://doi.org/10.17140/semoj-8-185","url":null,"abstract":"Aims and Objectives The purpose of this investigation was to extend research examining physical and social influences in the exercise/self-esteem relationship by investigating the moderating role of physical activity motives. Research reveals multiple motives for exercise participation beyond physical health enhancement. It is thought that these motives may play an important role in the relationship between exercise and self-esteem. Previous research has established the contribution of the physical self-system in the relationship. Furthermore, research examining the contribution social self-system has shown promise, yet the mechanisms operating in the relationship are less clear. It was hypothesized that motivation for physical activity participation may be such a mechanism. Results A population of 147 undergraduates completed assessments of physical activity participation, motives for physical activity, and physical, social and global self-perceptions. As expected, physical activity participation influenced self-esteem through both physical and social systems. Additionally, socially motivated exercisers exhibited greater self-esteem enhancement through the social as opposed to the physical self-system. Conclusion The hypothesis that physical activity motives would play an important role in determining the pathway through which physical activity participation influences self-esteem was partially supported. Results showed that those who reported social motives for physical activity showed greater enhancement in self-esteem through the social self-system, while physical motives did not serve a moderating role. The findings from the present investigation are important not only from the perspective of self-esteem theory but also with regard to the numerous practical implications of the results. The findings confirm that the relationship between exercise participation and self-esteem is more complex than previously thought in that physical activity participation influences self-esteem through multiple pathways. What remains to be investigated is how to best flesh out which pathway is more meaningful to the exerciser and then how to best serve the interests of the exerciser with the ultimate goal of enhancing self-esteem.","PeriodicalId":286240,"journal":{"name":"Sports and Exercise Medicine – Open Journal","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124171082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oxygen Therapy for the Treatment of Experimental Autoimmune Encephalomyelitis","authors":"Judy R. Wilson, P. Fuchs","doi":"10.17140/semoj-8-186","DOIUrl":"https://doi.org/10.17140/semoj-8-186","url":null,"abstract":"Background Multiple sclerosis (MS) is an immune-mediated disease of the central nervous system (CNS). Experimental autoimmune encephalomyelitis (EAE) is a widely used animal model of MS. Oxygen therapy, such as hyperbaric oxygen (HBO) or normobaric oxygen (NBO), has been advanced as a potential treatment option to allay the motor and sensory deficits associated with MS. However, it is unclear whether any therapeutic benefits derived from treatment are a result of pressurized oxygen or simply pure oxygen administration. This study aimed to explore whether pressurized oxygen (HBO) or sea-level oxygen (NBO) would attenuate the motor and sensory deficits associated with EAE. Methods Forty-two male Harlan Lewis rats were randomly assigned to one of four conditions: MBP/HBO, MBP/NBO, MBP/no treatment, or a vehicle group. Injections of MBP or vehicle were administered on day 1, and animals were allowed one-week to recover. Following recovery, animals were administered HBO at 2.0 atmospheres absolute (ATA) or sea-level oxygen for 60-minutes daily. Mechanical paw withdrawal threshold (MPWT) testing was conducted on the first day and every alternate day after the start of treatment to assess the development of tactile allodynia. Motor impairment tests were performed twice daily (immediately prior to and after oxygen treatment) to assess for the presence of motor deficits or paralysis. Results On days 14 through 18, animals injected with MBP had a greater level of motor impairment compared to the vehicle control group. Interestingly, results also indicated that NBO was as effective as HBO in attenuating EAE symptoms. Conclusion In conclusion, these results underscore the need for further research to determine the ideal parameters of oxygen treatment, particularly whether pressurization is necessary to attenuate symptoms of EAE.","PeriodicalId":286240,"journal":{"name":"Sports and Exercise Medicine – Open Journal","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132038701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Imagery Matters: The Role of Fitness Influencers in the Reproduction of Socio-Cultural Gender Norms","authors":"Claire Mills, F. Ware, Lucy Woodruff","doi":"10.17140/semoj-8-188","DOIUrl":"https://doi.org/10.17140/semoj-8-188","url":null,"abstract":"Introduction This research explored Instagram ‘Fitness Influencers’, to develop an understanding of the content they post online, the level of objectification and gender differences in the extent of this objectification. The media previously has presented gendered representations of women and men, with women subjected to greater objectification than males, with similar findings in social media research. Fitness Influencers are online micro-celebrities influential on young people, thus knowledge of the images being consumed is beneficial due to the associated detrimental effects of unconsciously internalising objectified media and that promoting unattainable beauty standards. Methods A content analysis of 90 influencer images was conducted to provide an understanding of the type of images shared, followed by a Chi square (χ2) to determine gender differences; the qualitative content analysis phase identified four main themes, lifestyle, brand endorsements, engaged in activity and objectification. Results There were no significant gender differences found (p>0.05) however, objectification sub-themes found significant differences in muscularity between males and females and in sultry poses (p<0.001), in line with gender stereotypes and norms in society. Conclusion The identification of greater objectification of males highlights the need for greater consideration for male’s body image, and greater consideration for the content being shared online more generally, due to the associated detrimental effects of consuming certain types of imagery.","PeriodicalId":286240,"journal":{"name":"Sports and Exercise Medicine – Open Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130916659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Agreement and Validity of Existing Anthropometric Calibration Models to Estimate Whole Body Density in Male Professional Football Players","authors":"Claire Mills, M. De Ste Croix, S. Cooper, D. James","doi":"10.17140/semoj-8-184","DOIUrl":"https://doi.org/10.17140/semoj-8-184","url":null,"abstract":"Introduction To date no calibration models exist to estimate whole body density (Db) of professional footballers, as such the development of practical anthropometric calibration models to make sound body composition judgements is imperative. The aim of this study was to investigate the agreement and validity of estimating Db from 15 existing calibration models through comparison to a criterion method of hydrostatic weighing (HW) in male professional footballers. Materials and Methods Data were gathered from a total of n=206 professional football participants (x±s; age=24.1±5.4-years, body mass=78.8±8.4 kg, stature=180.1±7.0 cm, Db 1.075±0.01 g.ml-1). Bland and Altman limits of agreement (LoA) approaches were used to determine bias and random variation derived from the calibration models. Results Bias and random errors for the published calibration models ranged from -0.005 to +0.015 g.ml-1 and 1.012 to 1.090 g.ml-1 respectively. A priori criterion (±3.8% p=<0.05 (g.ml-1)) was set as acceptable limits for the LoA method of which 13 calibration models found that (on average) estimated Db derived from HW was greater than Db derived from the models. Discussion A rank order of LoA identified the best model to use, however, LoA were not narrow enough for measurements to be of practical use and in most instances, selected models are not appropriate for estimating Db in male professional footballers.","PeriodicalId":286240,"journal":{"name":"Sports and Exercise Medicine – Open Journal","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132812391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"‘Making Weight’: The Perception and Impact of Weight Management on Female Boxers","authors":"Claire Mills, Thomas James, A. Hughes","doi":"10.17140/semoj-8-187","DOIUrl":"https://doi.org/10.17140/semoj-8-187","url":null,"abstract":"Introduction Boxing is a weight categorised sport in which athletes are expected to be weighed prior to competition so that the athletes are matched with similar size, strength and power attributes. By obtaining and maintaining a certain weight may result in boxers typically engaging in extreme weight loss practices to ‘make weight’, irrespective of their overall health and well-being. Therefore, this research aimed to establish the experiences and perceptions of weight management of female boxers how they engage with ‘making weight’ practices and the impact on their overall well-being. Methods In-depth semi-structured one-to-one interview’s were conducted with five elite level female amateur boxers over a digital, online platform. A six-stage thematic analysis was used and data collated into themes and sub-themes. Results Data identified 5 key themes and consisted of: emotions surrounding weight gain; long-term behavioural impacts; guidance and justifications; comparison to other boxers; and weight management methods. These accounts highlighted the long-term impact engaging in such weight loss methods had on female boxers both physically and psychologically. Conclusion Typically, boxers engaged in strict and extreme weight-loss behaviours due to negative emotions surrounding weight gain. Significantly these behaviours and emotions have a long-term impact and continue after retirement from boxing.","PeriodicalId":286240,"journal":{"name":"Sports and Exercise Medicine – Open Journal","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130648583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Anthropometric Equations and Dual X-ray Absorptiometry to Determine Body Composition in Active Breast Cancer Survivors","authors":"R. Klika, Shelby Cox, Brooklyn E. Herbert","doi":"10.17140/semoj-7-182","DOIUrl":"https://doi.org/10.17140/semoj-7-182","url":null,"abstract":"Objective The purpose of this study was to 1) compare the body composition values of an active group of breast cancer survivors (BCS) determined by dual X-ray absorptiometry (DXA) and anthropometry, and 2) compare the bone mineral density of the upper thoracic region to assess the effect of tumor burden on bone health. Design and Methods Forty (n=40) breast cancer survivors from a local competitive Dragon Boat Team were measured as part of team assessments. ANOVA with Dunn’s post-hoc testing was used to compare results of DXA, body density, and body composition estimated from anthropometry. Bland-Altman testing and correlational analysis were calculated. Results Percentage of fat measure by DXA was significantly higher than values used to estimate body fat from skinfold measures or from body density equations (DXA 41.1±6.0% vs. 3-site skinfolds 28.8±4.9%, 4-site skinfolds, 22.1±4.1%, skinfold and body density, 31.8±9.4%, respectively, p<0.05). Post-hoc testing revealed that all values were significantly different and the strongest correlation with DXA was skinfolds at three sites was r=0.81. Regional (upper thoracic) bone mineral density was not significantly different based on tumor side diagnosis (breast cancer diagnosis side versus healthy, 0.971±0.198 vs. 0.988±0.190 gm*cc-1). Anthropometry and bilateral bone mineral density characteristics are presented to serve as a comparative sample of BCS for future studies. Conclusion As body composition is an important factor in long-term cancer survivorship, we found the use of skinfold measures inadequate to accurately determine percentage of fat in this group of active female BCS. As a result, recommendations aimed at achieving an ideal body composition based solely on anthropometry would have grossly underestimated fat mass, which may lead to overall clinically poorer outcomes.","PeriodicalId":286240,"journal":{"name":"Sports and Exercise Medicine – Open Journal","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131335836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hyperbaric Oxygen Attenuates Aortic Vasoconstriction after Simulated Microgravity in Rats","authors":"Judy R. Wilson, J. Campbell","doi":"10.17140/semoj-7-183","DOIUrl":"https://doi.org/10.17140/semoj-7-183","url":null,"abstract":"Background The hindlimb suspended (HLS) rat model has been used in land-based research to evaluate effects of simulated microgravity. Previous research demonstrated that 2-4 weeks of HLS reduced vasoconstrictive responses of aortic, mesenteric, and femoral arterial rings to phenylephrine (PHE) while acute exposure to hyperoxia amplified constrictive responses to PHE. The purpose of this study was to determine if hyperbaric oxygen treatment (HBO) during HLS would reverse the attenuation of the vasoconstrictive response. Methods Five-month-old male Sprague Dawley rats were randomly divided into aging controls (AC), AC-HBO, HLS, and HLS-HBO. Groups receiving HBO (AC-HBO; HLS-HBO) were placed in a cage that was fitted for the animal hyperbaric chamber to maintain HLS. HBO groups received 24 treatments, once a day, 6 d/week using a wound care protocol. The chamber was flushed with 100% oxygen, compressed over 10 min to 2.5 atmospheres absolute (ATA) (22.5 psig), a 90-minute treatment, then a 10 min decompression. After 28 d of HLS, animals were sacrificed under isoflurane anesthesia and thoracic aorta segments isolated. Relaxation of aortic rings was measured in response to acetylcholine (ACh) and sodium nitroprusside (SNP) after pre-constriction with PHE (3×10-7). Constriction of aortic rings was also determined in response to increasing concentrations of PHE. All drugs were administered cumulatively in vessel baths at 10-10-10-4 M. Data were analyzed using four-parameter (i.e., minimum, maximum, EC50, slope) nonlinear regression, and groups compared using 2×2 ANOVA with HBO and HLS as main effects. Results Responses to ACh and SNP were not affected by HLS or HBO. However, in response to PHE, there was a decrease in maximum vasoconstriction in HLS compared to controls (44.7±7.3% vs 82.4±6.0%, respectively, p≤0.05) and in HBO compared to controls (48.5±6.5% vs 78.6±6.8%, p≤0.05). Conclusion These results indicate that PHE-induced constriction of thoracic aorta is decreased after HLS. HBO did not reverse HLS-induced reductions in contractile responses; instead, HBO independently reduced PHE-stimulated constriction of aortic segments. This suggests that HBO may be useful in conditions where constriction is enhanced, such as diabetes.","PeriodicalId":286240,"journal":{"name":"Sports and Exercise Medicine – Open Journal","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127204812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"To Study the Effect of Myofascial Trigger Point Release in Upper Trapezius Muscle Causing Neck Disability in Patients with Chronic Periarthritis Shoulder","authors":"M. Kaprail, Jalandhar Punjab India Rehabilitation, Shilpy Jetly, A. Sarin, P. Kaur","doi":"10.17140/SEMOJ-5-167","DOIUrl":"https://doi.org/10.17140/SEMOJ-5-167","url":null,"abstract":"","PeriodicalId":286240,"journal":{"name":"Sports and Exercise Medicine – Open Journal","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131416556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Compression Garments on Skeletal Muscle Physiology, Performance and Recovery in Young Healthy Adults: A Systematic Review","authors":"S. Mukherjee, L. Hui","doi":"10.17140/SEMOJ-5-169","DOIUrl":"https://doi.org/10.17140/SEMOJ-5-169","url":null,"abstract":"C garments (CG) are commercially available and highly popular sports apparel amongst athletes and fitness enthusiasts. CGs were initially used to promote post-operative recovery for lymphedema1 and vascular disorders2 in clinical settings. Pressure applied by the CGs on the muscles, bones and connective tissue had an effect of limiting the area of swelling, aiding venous return and preventing blood from being pooled in the veins. Over years, CGs have made inroads into sports and athletic training and performance-related applications. It has subsequently grown in popularity that is reflected by the global revenue figures being forecasted to increase from approximately USD 23.87 billion in 2016 to USD 32.17 billion by the end of 2022.3 CGs have been proposed to assist in accelerating muscle recovery, reducing muscle soreness4 and improving athletic performance.5 These conclusions have stemmed from evidence suggesting the efficacy of CGs in minimizing muscle oscillations6,7 during exercise and reducing the extent of exercise-induced muscle damage (EIMD).8","PeriodicalId":286240,"journal":{"name":"Sports and Exercise Medicine – Open Journal","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134645348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}