306 research outputs found

    Gender-Specific Marketing Strategies Used by Sports Supplements: A Descriptive Study

    Get PDF
    While the use of sports supplements is common among athletes and active adults, the marketing strategies used by these sports supplement manufacturers remain unknown—especially relative to active and athletic women. This descriptive study aims to describe marketing strategies used, such as color choices, structure function claims, and picture choice, and analyze if there are gender-specific differences within the strategies. A total of 100 best-selling sports supplements were selected from three separate third-party websites. Food products, accessories, and kitchen appliances were excluded. Supplement main webpages and sports supplement-specific webpages were explored to determine which marketing strategies were used and if there were gender-specific differences. Of 169 sports supplement webpages reviewed, only 23.1% (n=39) included pictures that were only/majority female. Only 7.1% (n=12) of supplement bottles used feminine colors, while for supplement pages, only 8.3% (n=14) utilized feminine colors and 43.2% (n=73) used masculine colors. While the number of women athletes continues to grow, sports supplement manufacturers are not using strategies targeted to women. Future research should examine the reasons for this discrepancy and women’s perceptions of purchasing sports supplements targeted to men

    Motivation, Goal Orientation, Coaching, and Training Habits of Women Ultrarunners

    Get PDF
    Ultrarunners participate in running events that exceed the 26.2 mile marathon distance (e.g., 50 K, 50-100 miles). Very little research exists on ultrarunners, especially women. The present study is a descriptive study detailing the motivation, goal orientation, demographic characteristics (e.g., age, job demands, family structure), training habits (e.g., hours per week of training), and coach utilization of women ultrarunners. Participants (N = 344) were recruited via the Ultra Listserve and four popular ultrarunning websites, and they completed a questionnaire on motivation, goal orientation, training, and coaching using Survey Monkey. General health orientation (mean + SD) (4.71 ± 1.06) and psychological coping (4.71 ± 1.03) were the two strongest motivational factors. Participants were higher in task-orientation (1.38 ± .68) (e.g., finishing the race or accomplishing various goals) than ego- orientation (3.38 ± 1.01) (e.g., placing in the top 3 overall or beating an opponent). Women trained an average of 12.49 hours a week and spent 64% of their time training alone. Training information came from their own experience, blogs, websites, and the Ultra List Serve. Over three-fourths of the participants (80%) did not use a coach because of cost and a perceived lack of necessity. Women ultrarunners in this study were task-oriented, internally motivated, health and financially conscious individuals. With additional information about women ultrarunners, coaches will be better prepared to work with this population and ultrarunners can improve their performance by learning about current participants\u27 practices

    Generalized iterative methods and nonlinear functional equations.

    Get PDF
    Perturbations of nonlinear operators are also investigated. If F'(x)(B(0; 1)) (R-HOOK) B(0; c((VBAR)(VBAR)x(VBAR)(VBAR))) and if F is perturbed by a nonlinear operator G satisfying a boundedness condition, then F + G is an open mapping from X onto Y. The case where both F and G are Gateaux differentiable operators satisfying various coercive conditions again yields surjectivity results for the sum F + G. These proofs rely on the existence of contractor inequalities derived from the hypotheses. Finally, if G is a compact operator and I - F is compact, then F + G is surjective; the proof uses methods of algebraic topology.Let X and Y be Banach spaces, P be a Gateaux differentiable mapping from X to Y and c : {0, (INFIN)) (--->) (0, (INFIN)) be a continuous nonincreasing function for which (INT)('(INFIN)) c(u)du = (INFIN). If P'(x)(B(0; 1)) contains B(0; c((VBAR)(VBAR)x(VBAR)(VBAR))) for each x (epsilon) X, then P is an open mapping of X onto Y. If the differentiability assumption on P is removed and instead P is both open and locally expansive, then P(X) = Y. If A is a continuous mapping from X to X satisfying for each x (epsilon) X, (GREATERTHEQ) c(max{(VBAR)(VBAR)x(VBAR)(VBAR), (VBAR)(VBAR)y(VBAR)(VBAR)}) (VBAR)(VBAR)x - y(VBAR)(VBAR)('2) for some j (epsilon) J(x -y), then A is a homeomorphism of X onto X. The main technique used in establishing these results is a new fixed point theorem which includes Ekland's Theorem as a special case

    An Examination of the Effectiveness of an 8-Week Bikram Yoga Program on Mindfulness, Perceived Stress, and Physical Fitness

    Get PDF
    Previous research reports positive effects of yoga on health. The physical and psychological outcomes of participation in Bikram yoga are under-researched despite its increasing popularity, and this type of yoga may be significant with regards to stress management due to its unique method of practice. This study was designed to assess changes in levels of mindfulness, perceived stress, and physical fitness after participation in an 8-week Bikram yoga program. Fifty-one participants aged 20–54 years (mean, 31.57 years) were recruited by word of mouth from a large university located in the Northwestern United States. Participants attended a minimum of 20 Bikram sessions over 8 weeks. Changes in mindfulness (Five-Facet Mindfulness Questionnaire), perceived stress (Perceived Stress Scale), and physical fitness (resting heart rate, 1-mile walk, sit-and-reach, total-body rotation, and single-leg balance) were measured. Eight weeks of Bikram yoga improved mindfulness, perceived stress, cardiorespiratory endurance, flexibility and balance (p \u3c 0.01). Mindfulness was negatively correlated with perceived stress (r=−0.43, p \u3c 0.01) and resting heart rate (r=−0.30, p \u3c 0.05). The results show that Bikram yoga positively affected psychological and physical health in the sample population. This information can be used to further the understanding of mind-body based programs, and how Bikram yoga may give people the tools to decrease perceived stress, potentially having an effect on chronic stress-related illnesses

    An Examination of Current Practices and Gender Differences in Strength and Conditioning in a Sample of Varsity High School Athletic Programs

    Get PDF
    Currently, little is known about strength and conditioning programs at the high school level. Therefore, the purpose of this research was to explore current practices in strength and conditioning for varsity high school athletes in selected sports. Specifically examined were: who administers programs for these athletes, what kinds of training activities are done, and whether the responsible party or emphasis changes depending on the gender of the athletes. Coaches of varsity soccer, basketball, and softball/baseball in three large Idaho school districts were asked to complete an online survey. Sixty-seven percent (32/48) of the questionnaires were completed and used for the study. The majority of coaches (84%) provided strength and conditioning opportunities for their athletes, although only 37% required participation. Strength training programs were designed and implemented primarily by either physical education (PE) teachers or head coaches. Compared to coaches of male athletes, coaches of female athletes were less likely to know the credentials of their strength coaches, and they were less likely to use certified coaches to plan and implement their strength and conditioning programs. Most programs included dynamic warm-ups and cool-downs, plyometrics, agility training, speed training, and conditioning, and most programs were conducted three days a week (76%) for sessions lasting between 30 and 59 minutes (63%). Compared to their female counterparts, male athletes were more likely to have required training, participate in strength training year round, and train using more sessions per week. This study provides additional information related to the practice of strength and conditioning in a sample of high school athletic teams

    Intracellular FGF14 (iFGF14) is required for spontaneous and evoked firing in cerebellar Purkinje neurons and for motor coordination and balance

    Get PDF
    Mutations in FGF14, which encodes intracellular fibroblast growth factor 14 (iFGF14), have been linked to spinocerebellar ataxia (SCA27). In addition, mice lacking Fgf14 (Fgf14(−/−)) exhibit an ataxia phenotype resembling SCA27, accompanied by marked changes in the excitability of cerebellar granule and Purkinje neurons. It is not known, however, whether these phenotypes result from defects in neuronal development or if they reflect a physiological requirement for iFGF14 in the adult cerebellum. Here, we demonstrate that the acute and selective Fgf14-targeted short hairpin RNA (shRNA)-mediated in vivo “knock-down” of iFGF14 in adult Purkinje neurons attenuates spontaneous and evoked action potential firing without measurably affecting the expression or localization of voltage-gated Na(+) (Nav) channels at Purkinje neuron axon initial segments. The selective shRNA-mediated in vivo “knock-down” of iFGF14 in adult Purkinje neurons also impairs motor coordination and balance. Repetitive firing can be restored in Fgf14-targeted shRNA-expressing Purkinje neurons, as well as in Fgf14(−/−) Purkinje neurons, by prior membrane hyperpolarization, suggesting that the iFGF14-mediated regulation of the excitability of mature Purkinje neurons depends on membrane potential. Further experiments revealed that the loss of iFGF14 results in a marked hyperpolarizing shift in the voltage dependence of steady-state inactivation of the Nav currents in adult Purkinje neurons. We also show here that expressing iFGF14 selectively in adult Fgf14(−/−) Purkinje neurons rescues spontaneous firing and improves motor performance. Together, these results demonstrate that iFGF14 is required for spontaneous and evoked action potential firing in adult Purkinje neurons, thereby controlling the output of these cells and the regulation of motor coordination and balance

    Women Bound to Be Active: One Year Follow-Up to an Innovative Pilot Intervention to Increase Physical Activity and Self-Worth in Women

    Get PDF
    The purpose of this investigation was to assess the effectiveness of a lifestyle intervention (a women’s book club; Women Bound to be Active) in promoting long-term physical activity (PA). Thirty-five women (26-70 years; mean age 50.6 years) completed the 8-month intervention and participated in the one-year follow-up. At follow-up, PA returned to baseline levels; however, self-worth and body mass index significantly improved. Women were more knowledgeable about PA at follow-up; however, they failed to maintain PA after the intervention. Components of the intervention were effective in improving self-worth and lowering BMI at one-year follow-up. To enhance long-term PA adherence continued research and intervention modifications are needed

    Intrinsic mechanisms in the gating of resurgent Na+ currents

    Get PDF
    The resurgent component of the voltage-gated sodium current (

    No Significant Differences in Muscle Growth and Strength Development When Consuming Soy and Whey Protein Supplements Matched for Leucine Following a 12 Week Resistance Training Program in Men and Women: A Randomized Trial

    Get PDF
    There are conflicting reports regarding the efficacy of plant versus animal-derived protein to support muscle and strength development with resistance training. The purpose of this study was to determine whether soy and whey protein supplements matched for leucine would comparably support strength increases and muscle growth following 12 weeks of resistance training. Sixty-one untrained young men (n = 19) and women (n = 42) (18–35 year) enrolled in this study, and 48 completed the trial (17 men, 31 women). All participants engaged in supervised resistance training 3×/week and consumed 19 grams of whey protein isolate or 26 grams of soy protein isolate, both containing 2 g (grams) of leucine. Multi-level modeling indicated that total body mass (0.68 kg; 95% CI: 0.08, 1.29 kg; p \u3c 0.001), lean body mass (1.54 kg; 95% CI: 0.94, 2.15 kg; p \u3c 0.001), and peak torque of leg extensors (40.27 Nm; 95% CI: 28.98, 51.57 Nm, p \u3c 0.001) and flexors (20.44 Nm; 95% CI: 12.10, 28.79 Nm; p \u3c 0.001) increased in both groups. Vastus lateralis muscle thickness tended to increase, but this did not reach statistical significance (0.12 cm; 95% CI: −0.01, 0.26 cm; p = 0.08). No differences between groups were observed (p \u3e 0.05). These data indicate that increases in lean mass and strength in untrained participants are comparable when strength training and supplementing with soy or whey matched for leucine

    Language control and parallel recovery of language in individuals with aphasia

    Get PDF
    Background: The causal basis of the different patterns of language recovery following stroke in bilingual speakers is not well understood. Our approach distinguishes the representation of language from the mechanisms involved in its control. Previous studies have suggested that difficulties in language control can explain selective aphasia in one language as well as pathological switching between languages. Here we test the hypothesis that difficulties in managing and resolving competition will also be observed in those who are equally impaired in both their languages even in the absence of pathological switching. Aims: To examine difficulties in language control in bilingual individuals with parallel recovery in aphasia and to compare their performance on different types of conflict task. Methods & procedures: Two right-handed, non-native English-speaking participants who showed parallel recovery of two languages after stroke and a group of non-native English-speaking, bilingual controls described a scene in English and in their first language and completed three explicit conflict tasks. Two of these were verbal conflict tasks: a lexical decision task in English, in which individuals distinguished English words from non-words, and a Stroop task, in English and in their first language. The third conflict task was a non-verbal flanker task. Outcomes & Results: Both participants with aphasia were impaired in the picture description task in English and in their first language but showed different patterns of impairment on the conflict tasks. For the participant with left subcortical damage, conflict was abnormally high during the verbal tasks (lexical decision and Stroop) but not during the non-verbal flanker task. In contrast, for the participant with extensive left parietal damage, conflict was less abnormal during the Stroop task than the flanker or lexical decision task. Conclusions: Our data reveal two distinct control impairments associated with parallel recovery. We stress the need to explore the precise nature of control problems and how control is implemented in order to develop fuller causal accounts of language recovery patterns in bilingual aphasia
    • 

    corecore