Fitness Classes Research Articles

Categorization of impact forces during rebound exercise class

Rebounding fitness class became popular due to the supposed capacity of minimize the impact forces on the body of participant. However, no studies about impact forces during rebound exercise class have been found. Thus, the aim of this study was to assess the impact forces produced during a series of traditional rebounding exercises and present a categorization based on impact force parameters. Sixty instructors of rebound exercise performed various rebound exercises on a standard mini-trampoline, which was optimized with six load cells. The load cells were used to assess the impact parameters (peak and loading rate of the ground reaction force). One-way ANOVA was used to compare the exercises (α = 0,05). As results, we noted that when peak force is used to assess impact, the most of the rebound exercises are classified as low ( 4xPC); while when rate loading is used, most of the exercises are considered as moderate (20-30x PC/s) and high impact (<20x PC/s). Thus, each evaluated impact parameter results in a different rebound exercise categorization. The selection of progression of rebounding exercises during a fitness class should take in consideration the peak and loading rate values and its possible effects on the musculoskeletal system.

Привлечение студенческой молодежи к занятиям спортивно-оздоровительной направленности

Привлечение студенческой молодежи к занятиям спортивно-оздоровительной направленности

New developments in the ROOT fitting classes

The ROOT Mathematical and Statistical libraries have been recently improved both to increase their performance and to facilitate the modelling of parametric functions that can be used for performing maximum likelihood fits to data sets to estimate parameters and their uncertainties. First, we report on the new functionalities introduced in ROOT’s TFormula and TF1 classes to build these models in a convenient way for the users. We show how function objects, represented in ROOT by TF1 classes, can be used as probability density functions and how they can be combined together—via an addition operator—to perform extended likelihood fit of several normalized components. We also describe the new operators introduced to perform the convolution of two functions. Finally, we report on the improvements in the performance of the ROOT fitting algorithm, by using SIMD vectorization when evaluating the model function on large data sets and by exploiting multi-thread parallelization when computing the likelihood function.

Supplemental Material for Perceptions of Groupness During Fitness Classes Positively Predict Recalled Perceptions of Exertion, Enjoyment, and Affective Valence: An Intensive Longitudinal Investigation

Supplemental Material for Perceptions of Groupness During Fitness Classes Positively Predict Recalled Perceptions of Exertion, Enjoyment, and Affective Valence: An Intensive Longitudinal Investigation

On the dual theory of a result of Bryce and Cossey

In the theory of formations of finite soluble groups, a well known result of Bryce and Cossey is: a local formation F is a Fitting class if and only if every value of the canonical formation function F of F is a Fitting class. In this paper, we give the dual theory of the result of Bryce and Cossey. We proved that an ω-local (in particular, local) Fitting class F is a formation if and only if every value of the canonical ω-local (in particular, local) Hartley function F of F is a formation.

The Effect of a Park-Based Physical Activity Program on Cardiovascular, Strength, and Mobility Outcomes Among a Sample of Racially/Ethnically Diverse Adults Aged 55 or Older.

Many older adults are not physically active despite the well-documented health benefits of regular exercise. We examined cardiovascular, strength, and mobility outcomes among a sample of racially/ethnically diverse adults aged 55 or older participating in a community park-based physical activity program. We assessed the following among adults aged 55 or older who attended a 1-hour park-based fitness class 2 or 3 times per week for 21 weeks: 1) 3 fitness outcomes, 2) systolic and diastolic blood pressure, 3) height and weight (to assess body mass index), and 4) pulse. We collected data at baseline (August-September 2016) and follow-up (January-February 2017). Linear regression analysis, adjusting for sex, age, and race/ethnicity, examined the association between program participation and changes in outcomes. Adjusted models showed a mean decrease in systolic blood pressure (-3.80 mm Hg; 95% CI, -6.75 to -0.84 mm Hg) and diastolic blood pressure (-1.54 mm Hg; 95% CI, -3.01 to -0.06 mm Hg) and a mean increase in number of arm curls completed in 30 seconds (1.66; 95% CI, 0.71-2.61) from baseline to follow-up among all participants. Hispanic participants, compared with non-Hispanic white and non-Hispanic black participants, showed greater improvements in mean body mass index (-2.48; 95% CI, -4.60 to -0.34), systolic blood pressure (8.59 mm Hg; 95% CI, -16.82 to -0.36 mm Hg), diastolic blood pressure (-7.06 mm Hg; 95% CI, -11.16 to -2.97 mm Hg), and pulse (-6.53 beats per minute; 95% CI, -11.38 to -1.67 beats per minute). Park-based fitness classes tailored to older, racially/ethnically diverse adults can improve cardiovascular health and strength.

Money matters: participants’ purchasing experiences in a budget authority model of self-directed care

ABSTRACTSelf-directed care (SDC) is a service delivery model in which individuals diagnosed with a severe and persistent mental illness (SPMI) direct their behavioral healthcare by managing an individual budget and purchasing the goods and services they deem most helpful in meeting their needs and supporting their recovery. Participants may purchase conventional mental health services as well as alternative goods (e.g., books, clothing) and services (e.g., fitness classes) to support their recovery. Several quantitative studies have examined the types of purchases commonly made by SDC participants. This qualitative study builds on this research by reporting findings from interviews with 18 SDC participants on the factors that influence their purchasing decisions, the benefits derived from SDC purchases, and perceived barriers experienced in making desired purchases. Findings reveal the extent to which money matters in mental health recovery and suggest that individualized budgeting and purchasing contribute to SDC participants’ mental wellness and stability, enhance their control over service choices, and, most notably, provide some material relief in ongoing struggles with chronic poverty. Findings also highlight the importance of flexible spending guidelines and streamlined approval processes; overly proscriptive policies may undermine participants’ self-determination. Additional implications for SDC practice, policy, and research are discussed.

Tone it Down: How Fitness Instructors’ Motivational Comments Shape Women’s Body Satisfaction

Two-hundred and three college women participated in a 16-minute strength and conditioning group fitness class. Participants were randomly assigned to a class that featured either appearance-focused motivational comments by the instructor (e.g., “Blast that cellulite!”) or function-focused comments (e.g., “Think of how strong you are getting!”). Body satisfaction from pre-test to post-test increased overall, but those in the function-focused (as opposed to appearance-focused) condition experienced a significantly greater increase in body satisfaction. A similar pattern was observed for positive affect. Additionally, those in the function-focused condition described the class in more positive terms and reported experiencing less body surveillance during the class. These findings are consistent with research suggesting that exercise can improve mood and body satisfaction, but also suggest that a more function-focused class can lead to even greater improvements. The motivational comments fitness instructors use may have a notable impact on women’s mood, body satisfaction, and body surveillance.

Formations defined by Doerk–Hawkes operation

For a nonempty formation [Formula: see text], let [Formula: see text] be the least formation containing [Formula: see text] such that [Formula: see text] for all groups [Formula: see text] and [Formula: see text]. If [Formula: see text], then [Formula: see text] is said to be a DH-formation. A function [Formula: see text]: [Formula: see text] is called a formation function and [Formula: see text] is called the support of [Formula: see text]. If [Formula: see text] and [Formula: see text], where [Formula: see text], then [Formula: see text] is said to be a local formation defined by [Formula: see text]. If [Formula: see text] for all [Formula: see text], then [Formula: see text] is called a DH-function. In this paper, we prove that every local formation can be defined by a DH-function [Formula: see text] and each value of the DH-function [Formula: see text] is a DH-formation. Besides, we also give the necessary and sufficient condition under which a local Fitting class [Formula: see text] is a DH-formation.

Динамика показателей физической подготовленности студентов под влиянием занятий оздоровительным фитнесом

Динамика показателей физической подготовленности студентов под влиянием занятий оздоровительным фитнесом

Intrapersonal and Environmental Barriers to Physical Activity Among Blacks and Latinos

To understand perceived barriers and facilitators to physical activity (PA) among at-risk African American and Hispanic adolescents and adults in a low-income community. Qualitative research was conducted in 2014-2015 using focus groups and a sociodemographic survey. Three high schools in South Los Angeles, California. Eight high school-aged adolescent focus groups (n = 64) and 8 adult focus groups (n = 47). Perceived barriers and facilitators to PA among predominantly obese and overweight African American and Hispanic adolescents and adults. Groups were audio recorded, transcribed, coded, and analyzed using an inductive approach. Participants reported that PA resources were available on school campuses (eg, sports teams) and in the community (eg, sidewalks, local parks, fitness classes). Key barriers to PA were intrapersonal (lack of motivation and time constraints) and environmental (safety concerns), whereas facilitators included interpersonal factors (social support). Participants provided valuable insights, including recommendations to increase noncompetitive programs at schools, develop shared-use agreements, and address safety concerns at local parks and public recreational spaces. The findings suggest that future efforts to promote PA among at-risk minority groups should address intrapersonal and social environmental factors. Community-based programmatic and policy recommendations are provided.

Physical Activity Programming Advertised on Websites of U.S. Islamic Centers: A Content Analysis.

Previous research has found churches to be effective at delivering physical activity (PA) programs to their congregants. Mosques, however, have not been extensively studied. Therefore, we quantified U.S. Islamic centers’ advertisement of PA programming and examined their programming characteristics. We conducted a content analysis of the websites of 773 eligible Islamic centers of which 206 centers in 32 states advertised PA programming. We categorized PA by program type: camping, fitness classes, sports, youth programs, and irregular offerings. We calculated descriptive statistics by program type for specific activity, frequency/duration/volume, participant/instructor sex, and instructor religion. Youth group (44%) and sports (23%) programs were most and least frequently advertised, respectively. Most centers (66%) that posted information on PA programming advertised only one program type. Men and Muslims taught most activities. Most activities—except for fitness classes—were advertised to a male audience. Islamic centers should offer and advertise additional PA programming—especially for women—and better utilize their websites for promoting such programming. Individual Islamic centers and Islamic- and non-religion based public health agencies can utilize our findings to fashion future PA offerings.

Вплив фізкультурно-оздоровчих занять з елементами катання на роликових ковзанах на морфофункціональний стан учнів 5–6 класів

Purpose : to determine the impact of fitness classes with the priority use of roller skating on the morphofunctional state and physical fitness of schoolchildren in grades 5–6. Material & Methods : 194 children of 10–12 years old took part in the experiment, 90 of them were boys and 104 girls. The study was conducted on the basis of school number 269, Kiev with in-depth study of the French language. In the process of research, the following methods were applied: pedagogical (pedagogical experiment and observation); anthropometric; physiological (pulsometry, spirometry, functional tests) methods of mathematical statistics. Results : study shows that among pupils in grades 5–6, physical culture and fitness classes with priority use of roller skating means because positive changes in the morphofunctional state and physical fitness. Significant improvements were found after 9 months of regular classes. Conclusion : fitness classes with the priority use of roller skating means have a positive effect on the morphofunctional state and physical fitness of schoolchildren in grades 5–6. It was revealed that the indicators of the functional state (in particular, the cardiovascular and respiratory systems), physical fitness of schoolchildre compared with the initial data are significantly higher (P(t)<0,01; P(t)<0,001).

OR-038 CHANGE of SERUM TESTOSTERONE and ENDOCRINE INDEXS after CRYOTHERAPY in DIFFERENT AGE GROUPS

OR-038 CHANGE of SERUM TESTOSTERONE and ENDOCRINE INDEXS after CRYOTHERAPY in DIFFERENT AGE GROUPS

Parallelization and vectorization of ROOT fitting classes

We introduce parallelization and vectorization in ROOT mathematical and statistical libraries in order to take full advantage of new computer architectures and to maximize the CPU usage with an increasing amount of data to analyze.As part of this effort, we define in ROOT new generic classes supporting a task-based parallelization mode, which can be used for a wide range of computational tasks in the field of High Energy Physics. We also include support for different SIMD libraries, by including in ROOT a new generic library for vectorization.These different parallelization tools are applied together when parallelizing the minimization process for solving fitting problems. We report on the improvements obtained by adding the support for SIMD vectorization and multithreaded parallelization when fitting ROOT histograms and datasets represented by ROOT trees.

Relationship between Women`s Body Dissatisfaction, Sense of Coherence and Physical Activity

Background. Socio-cultural pressure exerted by the environment and the media makes the majority of women take care of their bodies. That is especially true in Western culture which promotes slimmer women in recent decades.Methods. Two questionnaires were used in this research: Body Shape Questionnaire and Sense of Coherence scale. Research participants were 79 women aged 34.6 ± 3.76 years. Results. After six months of regular fitness classes women’s satisfaction of their body and their sense coherence level improved significantly. Relations between body shape dissatisfaction and sense of coherence, body shape dissatisfaction and manageability, comprehensibility and manageability were found.Conclusions. Systematic fitness training positively affects women’s satisfaction with their body. Understanding of the capability of controlling their body shape was improved. There was a significant relationship between dissatisfaction with their body shape and sense of coherence. The effect of physical activity improved the values of all three components of the sense of coherence construct. The values of comprehensibility, meaningfulness and manageability indicators show that respondents may already have a better control of their sense of coherence.Keywords: women, body shape dissatisfaction, sense of coherence, physical activity

Analysis of a First Professional Year Student Wellness Program

Objective: To identify wellness-related needs and assess the impact of wellness-related offerings among first professional year pharmacy students.&#x0D; Innovation: A survey tool was developed and offered to P1 students at the beginning and end of their fall and spring semesters. Additional biometric data was also collected to help identify wellness needs. Data from the first academic year (AY1) was used to develop targeted wellness interventions offered to P1 students during the subsequent academic year (AY2). Assessment strategies from AY1 were repeated with minor modifications in AY2 to identify changes in baseline needs and changes in markers across the academic year.&#x0D; Critical Analysis: AY1 survey response rates varied from 20.1% to 47.4% across the semester. Frequent dissatisfaction was reported with diet, weight, and exercise. AY2 survey response rates varied from 15.8% to 58.3% across the semester. The AY2 cohort demonstrated similar dissatisfaction data; however, also demonstrated lower baseline stress scores as compared to the AY1 cohort, higher baseline BMI, and higher systolic and diastolic blood pressure. Individual interventions offered to AY2 students were attended by as many as 16.5% of the academic cohort. Nutrition classes exhibited stronger attendance than fitness classes.&#x0D; Next Steps: The process used in this study was easily implemented and provided understanding of wellness gaps, which helped to identify interventions that were implemented and assessed. The process also demonstrated that wellness needs can vary from one population to another, reinforcing the value of periodic assessment to identify changing needs.&#x0D; &#x0D; Type: Note

Pole studios as spaces between the adult entertainment, art, fitness and sporting fields

Taking an ethnographic approach, this article examines how pole is taught and embodied within pole studios. Pole studios stand at the nexus of the expansion of pole dance from the field of adult entertainment into the fitness industry, sporting world, and more. This article argues that pole studios serve as “spaces between fields” where pole is undergoing standardisation and production as fitness activity, sport, art, and erotic dance. Although divides exist, this study illustrates ways that pole studios can serve as a bridge connecting those fields. Studios in effect produced pole as a multifaceted activity by: offering specialised courses (e.g. fitness versus erotic pole dance classes), teaching leveled classes in the basics of poling that were hybridised and built students’ bodily capital in diverse ways without stigmatising them, and being ambiguous when discussing potential audiences. Such helps explain pole’s continued development. It also demonstrates the usefulness of Eyal’s concept of spaces between fields for scholars of sports and leisure studying shifts in the nature and function of physical activities.

Latent class modeling to compare testing platforms for detection of antibodies against the Chlamydia trachomatis antigen Pgp3

Latent class modeling can be used to combine the results of multiple tests to compare the sensitivity and specificity of those tests in the absence of a gold standard. Seroepidemiology for chlamydia infection may be useful for determining the cumulative risk of infection within a population. Initial studies using the Chlamydia trachomatis immunodominant antigen Pgp3 have shown utility for seroepidemiology of sexually transmitted chlamydia and the eye disease trachoma. We present our latent class modeling results for comparison of antibody data obtained from three different Pgp3-based platforms – multiplex bead array, ELISA, and lateral flow assay. Sensitivity and specificity estimates from the best fitting latent class models were similar to estimates derived from those previously obtained using a nucleic acid amplification test as a gold standard for sensitivity and non-endemic pediatric specimens for specificity, although the estimates from latent class models had wider confidence intervals. The modeling process and evaluation highlighted the importance of including as many antibody tests as possible when fitting a latent class model to ensure that as many patterns as possible are available for evaluation. Future studies designed to evaluate antibody test performance in the absence of a gold standard should utilize as many tests as possible.

Metabolic indicators and energy expenditure in two models of health club classes: aerobic fitness class vs. strength fitness class

This study was designed to analyze the differences in metabolic indicators and energy expenditure (EE) between two models of health club fitness classes: Aerobic Fitness Class (AFC) and Strength Fitness Class (SFC). Fifteen adult women (mean ± standard deviation: age, 29.0 ± 3.3 years; height, 161.8 ± 4.8 cm; body mass index, 21.5 ± 1.6 kg/m2) participated in the present study. Maximum oxygen uptake (VO2max) and maximum heart rate (HRmax) were measured directly during a maximal treadmill test. During AFC and SFC sessions, heart rate (HR), oxygen uptake (VO2), respiratory exchange ratio (RER), metabolic equivalents (MET), percentage of fat oxidation (%FAT), percentage of carbohydrate oxidation (%CHO) and EE were assessed by indirect calorimetry using a portable gas analyzer (K4b2). Student’s paired samples t test was used to analyze differences between AFC and SFC. Significance level was set at 5%. Effect sizes (Cohen’s d) were observed. There were greater values during AFC in comparison with SFC on the following variables: VO2 (1959.3 ± 273.2 vs. 1122.7 ± 187.7 ml kg−1 min−1; p < 0.001; ES = 3.69); HR (161 ± 14 vs. 133 ± 17 bpm; p < 0.001; ES = 1.86); MET (10.0 ± 1.2 vs. 5.8 ± 0.9 MET; p < 0.001; ES = 4.1); total EE (259.6 ± 24.9 vs. 151.7 ± 22.3 kcal; p < 0.001; ES = 4.73); %VO2max (76.9 ± 8.6 vs. 44.3 ± 8.1%; p < 0.001; ES = 4.04); %HRmax (84.2 ± 5.8 vs. 69.7 ± 7.9%; p < 0.001; ES = 2.17) and CHO oxidation rate (139.9 ± 16 vs. 82.4 ± 13.8 kcal h−1; p < 0.001; ES = 3.98). Further, CHO was the main substrate for both classes. These results suggest that AFC induces greater EE than SFC. Moreover, engaging AFC or SFC 3–5 times a week seems enough to achieve international physical activity recommendations per week to promote several health benefits. Finally, carbohydrate is the main energy supply for both types of fitness classes.