Strength Training Classes Research Articles

The Influence of Models of Different Structures of Strength Training Classes in Horting on the Indicators of Bioimpedansometry

Topicality. In the modern system of training in mixed martial arts, in particular in the sport of horticulture, the search for optimal models of training programs aimed at improving strength capabilities and body composition of athletes is actively investigated. The Purpose of the Research. To study the peculiarities of the influence of different models of strength training in horting on the indicators of the body composition of athletes.. Methods. 60 athletes who have been involved in horting for 3–4 years took part in the study. 3 research groups were formed. The representatives of the examined groups used experimental training models during 3 months of strength training. Using the non-invasive method of bioimpedance measurement during all stages of the study, the nature of changes in parameters of body composition indicators was assessed. The Results. It was established that only representatives of the 2nd group showed a positive increase in parameters of active cellular body mass (ACM, %) by 3,7 % (p<0,05) during the 3 months of the study compared to the initial data. A significant decrease in the parameters of this body composition indicator was found in the athletes of the other two groups. The greatest increase in BJM among the participants was found in athletes of group 3. At the same time, in representatives of group 1, the level of the studied indicator is almost half as low as compared to the results that were found in athletes of group 3 during the three months of the experiment. The greatest dynamics towards a decrease in the BM indicator (%) by 2,8 % (p<0,05), over the entire period of the study, is observed in athletes of group 1. At the same time, in the representatives of the other two groups, during the entire period of the experiment, we observe identical dynamics of the investigated body composition indicator, the level of which differs by only 0,7 % from the results demonstrated by the athletes of the 1st group. Findings. The use in the process of strength training in horting of variations of exercise complexes effective in strength fitness on simulators under the conditions of the principle of “premature fatigue” of agonist muscles due to exercises of an isolating nature, allows to maximally influence the parameters of body composition compared to the results that were found in other conditions of training activities.

Features of the influence of special strength training on performance in competitive activities in Mixed Martial Arts (example of horting)

The article is devoted to the study of the problem of the specific influence of strength training in horting on the effectiveness of the implementation of the functional adaptation potential of the athletes' body and their level of technical and tactical skill in the process of competitive activity. In the process of the research, a comparative analysis of the results of the matches between the athletes of all three experimental groups identified at the stage of selection for the championship of Ukraine was carried out after three months of using experimental models of strength training classes and during the competition for the selection for the Cup of Ukraine. The results of the study showed that the number of victories of athletes of the second group at this stage of the study during qualifying matches decreased by 41.7% compared to the previous results. At that time, on the contrary, among the athletes of the third group, we observe an increase in the effectiveness of competitive activity by 62.5% compared to the number of victories recorded during qualifying matches for the championship of Ukraine before the use of the experimental model of strength training classes. In the process of analyzing the results of competitive activity recorded in at the end of the study, during qualifying matches for the Cup of Ukraine, it was found that among the athletes of the second group, compared to the magnificent indicators of the previous control, we observed the largest decrease in the number of victories by 4 times due to technical knockout. At the same time, among the athletes of this group, the indicator of the number of victories obtained due to knockout decreased by 50.0% compared to the results that were revealed during the qualifying competitions before the start of the application of the proposed experimental model of training sessions. The corresponding negative dynamics to a 3-fold decrease in the number of victories obtained in matches with athletes of the third group in the conditions of the use of suffocating techniques, we record in the participants of the second group at this stage of the study compared to the results found in previous competitions.

Protein Supplementation May Dampen Positive Effects of Exercise on Glucose Homeostasis: A Pilot Weight Loss Intervention.

The role of protein in glucose homeostasis has demonstrated conflicting results. However, little research exists on its impact following weight loss. This study examined the impact of protein supplementation on glucose homeostasis in older adults >65 years with obesity seeking to lose weight. A 12-week, nonrandomized, parallel group intervention of protein (PG) and nonprotein (NPG) arms for 28 older rural adults (body mass index (BMI) ≥ 30 kg/m2) was conducted at a community aging center. Both groups received twice weekly physical therapist-led group strength training classes. The PG consumed a whey protein supplement three times per week, post-strength training. Primary outcomes included pre/post-fasting glucose, insulin, inflammatory markers, and homeostasis model assessment of insulin resistance (HOMA-IR). Mean age and baseline BMI were 72.9 ± 4.4 years and 37.6 ± 6.9 kg/m2 in the PG and 73.0 ± 6.3 and 36.6 ± 5.5 kg/m2 in the NPG, respectively. Mean weight loss was -3.45 ± 2.86 kg in the PG and -5.79 ± 3.08 kg in the NPG (p < 0.001). There was a smaller decrease in pre- vs. post-fasting glucose levels (PG: -4 mg ± 13.9 vs. NPG: -12.2 ± 25.8 mg/dL; p = 0.10), insulin (-7.92 ± 28.08 vs. -46.7 ± 60.8 pmol/L; p = 0.01), and HOMA-IR (-0.18 ± 0.64 vs. -1.08 ± 1.50; p = 0.02) in the PG compared to the NPG. Protein supplementation during weight loss demonstrated a smaller decrease in insulin resistance compared to the NPG, suggesting protein may potentially mitigate beneficial effects of exercise on glucose homeostasis.

Baseline Serum Biomarkers Predict Response to a Weight Loss Intervention in Older Adults with Obesity: A Pilot Study.

Caloric restriction and aerobic and resistance exercise are safe and effective lifestyle interventions for achieving weight loss in the obese older population (>65 years) and may improve physical function and quality of life. However, individual responses are heterogeneous. Our goal was to explore the use of untargeted metabolomics to identify metabolic phenotypes associated with achieving weight loss after a multi-component weight loss intervention. Forty-two older adults with obesity (body mass index, BMI, ≥30 kg/m2) participated in a six-month telehealth-based weight loss intervention. Each received weekly dietitian visits and twice-weekly physical therapist-led group strength training classes with a prescription for aerobic exercise. We categorized responders' weight loss using a 5% loss of initial body weight as a cutoff. Baseline serum samples were analyzed to determine the variable importance to the projection (VIP) of signals that differentiated the responder status of metabolic profiles. Pathway enrichment analysis was conducted in Metaboanalyst. Baseline data did not differ significantly. Weight loss was 7.2 ± 2.5 kg for the 22 responders, and 2.0 ± 2.0 kg for the 20 non-responders. Mummichog pathway enrichment analysis revealed that perturbations were most significant for caffeine and caffeine-related metabolism (p = 0.00028). Caffeine and related metabolites, which were all increased in responders, included 1,3,7-trimethylxanthine (VIP = 2.0, p = 0.033, fold change (FC) = 1.9), theophylline (VIP = 2.0, p = 0.024, FC = 1.8), paraxanthine (VIP = 2.0, p = 0.028, FC = 1.8), 1-methylxanthine (VIP = 1.9, p = 0.023, FC = 2.2), 5-acetylamino-6-amino-3-methyluracil (VIP = 2.2, p = 0.025, FC = 2.2), 1,3-dimethyl uric acid (VIP = 2.1, p = 0.023, FC = 2.3), and 1,7-dimethyl uric acid (VIP = 2.0, p = 0.035, FC = 2.2). Increased levels of phytochemicals and microbiome-related metabolites were also found in responders compared to non-responders. In this pilot weight loss intervention, older adults with obesity and evidence of significant enrichment for caffeine metabolism were more likely to achieve ≥5% weight loss. Further studies are needed to examine these associations in prospective cohorts and larger randomized trials.

PROTEIN SUPPLEMENTATION NEGATIVELY IMPACTS GLUCOSE HOMEOSTASIS IN A WEIGHT LOSS INTERVENTION IN OLDER ADULTS

Abstract Background Higher dietary intake of protein has also been associated with increased risk of type 2 diabetes, yet losing weight improves glucose metabolism and homeostasis. We evaluated whether a multicomponent weight loss intervention in older persons with obesity aged 65+ years augmented with protein supplementation impacts glucose homeostasis. Methods A 12-week, non-randomized, parallel group intervention in 28 older rural adults with obesity (body mass index (BMI)≥30kg/m2) was conducted at a community aging center of a protein and non-protein arms. Both received individualized, weekly dietitian visits with twice weekly physical therapist-led group strength training classes; aerobic exercise was prescribed outside the classes. The protein group was provided with whey protein supplementation three times weekly post-strength training. Pre/post fasting glucose, insulin, and c-peptide levels were assessed with HOMA-IR and HOMA beta-cell function calculated. Results Mean age was 72.9±4.4 (86% female) and 73.0±6.3 (79% female), p=0.94, with baseline BMI of 37.6±6.9 and 36.6±5.5, in the protein and non-protein groups, respectively. Mean weight-loss was -3.45±2.86kg and -5.79±3.08kg (both p&amp;lt; 0.001; Δ p=0.047). Visceral fat decreased less in the protein group (-0.02mL vs. -1.02ml;p=0.007), while appendicular lean mass did not (p=0.44). There was lower fasting glucose (protein:-4mg±13.9mg/dL vs. non-protein: 12.2±25.8, effect size:-0.40;p=.10), insulin (-1.32±4.68 vs. -7.79±10.14, ES:0.82;p=0.01), and higher c-peptide (-0.02±0.67 vs. -0.69±1.25,ES:0.66;p=0.06) at follow-up. HOMA-IR also decreased less (-0.18±0.64 vs. -1.08±1.50, ES:0.78; p=0.02) and b-cell function (-3.94±22.61 vs. -16.81±33.85; ES:0.45; p=0.09]). Conclusions A multicomponent obesity intervention incorporating protein supplementation led to lower degree of weight loss and mitigated the benefit on glucose homeostasis.

Telehealth-Delivery of a Multicomponent Obesity Intervention in Older, Rural Adults With Obesity

Older, rural residents with obesity aged ≥65 years have reduced access to health promotion programs due to geography. We conducted a 26-week intervention of 24 older obese adults (BMI≥30kg/m2) in a geographically isolated area in Northern New England. The telemedicine delivered intervention consisted of individual, weekly, dietitian visits focusing on caloric restriction, and twice-weekly physical therapist-led group strength training classes. Participants’ age was 73.4±4.4years (79% female); pre-post assessments consisted of bioelectrical impedance-based body composition, functional measures, and satisfaction questionnaires. Feasibility was high (50% enrolled, 85% completed). Weight decreased 4.5±3.8kg (4.5±0.5%; 48% achieving ≥5%), 30s sit-to-stand improved (+3.8±4.1repetitions), as did 6-minute walk, +76.2±70.1m (all p<0.001). Appendicular mass did not change (+0.20±2.3kg); % body and visceral fat both decreased (-1.8±2.8% [p=0.009], -1.2±2.7L [p=0.025]). Participants endorsed telemedicine (96%); 78% preferred a home-based study. Satisfaction was high (4.2/5) and only 17% faced difficulties. Despite geography, this intervention holds promise in improving physical function.

Extension Educators and Volunteer Leaders: Evaluation of Fitness Outcomes Among Participants in Community Strength Training Classes.

Volunteer-led strength training classes can expand access, improve exercise adherence, and enhance intervention sustainability for older adults. This study compared participant functional fitness outcomes between volunteer-led and Extension educator-led StrongWomen strength training groups in community settings. Change scores for participants (n = 317) were calculated for six Senior Fitness Test (SFT) measures. A non-parametric analysis of independent samples to determine SFT score differences between participant groups (educator-led and volunteer-led) showed no significant differences. Volunteers and professionals, like Extension educators, may be similarly effective in conducting community-based strength training classes resulting in improved functional fitness outcomes. We offer recommendations for organizations seeking to adopt similar approaches.

A Weight Loss Intervention Augmented by a Wearable Device in Rural Older Adults With Obesity: A Feasibility Study.

Older persons with obesity aged 65+ residing in rural areas have reduced access to weight management programs due to geographic isolation. The ability to integrate technology into health promotion interventions shows a potential to reach this underserved population. A 12-week pilot in 28 older rural adults with obesity (body mass index [BMI] ≥ 30 kg/m2) was conducted at a community aging center. The intervention consisted of individualized, weekly dietitian visits focusing on behavior therapy and caloric restriction with twice weekly physical therapist-led group strengthening training classes in a community-based aging center. All participants were provided a Fitbit Flex 2. An aerobic activity prescription outside the strength training classes was provided. Mean age was 72.9 ± 5.3 years (82% female). Baseline BMI was 37.1 kg/m2, and waist circumference was 120.0 ± 33.0 cm. Mean weight loss (pre/post) was 4.6 ± 3.2 kg (4.9 ± 3.4%; p < .001). Of the 40 eligible participants, 33 (75%) enrolled, and the completion rate was high (84.8%). Objective measures of physical function improved at follow-up: 6-minute walk test improved: 35.7 ± 41.2 m (p < .001); gait speed improved: 0.10 ± 0.24 m/s (p = .04); and five-times sit-to-stand improved by 2.1 seconds (p < .001). Subjective measures of late-life function improved (5.2 ± 7.1 points, p = .003), as did Patient-Reported Outcome Measurement Information Systems mental and physical health scores (5.0 ± 5.7 and 4.4 ± 5.0, both p < .001). Participants wore their Fitbit 93.9% of all intervention days, and were overall satisfied with the trial (4.5/5.0, 1-5 low-high) and with Fitbit (4.0/5.0). A multicomponent obesity intervention incorporating a wearable device is feasible and acceptable to older adults with obesity, and potentially holds promise in enhancing health.

筋力トレーニング教室から自主グループが形成・継続されるプロセスにおける保健師の支援のあり方 : 複線径路・等至性モデル(TEM)による住民と保健師の相互関係の分析の試み

筋力トレーニング教室から自主グループが形成・継続されるプロセスにおける保健師の支援のあり方 : 複線径路・等至性モデル(TEM)による住民と保健師の相互関係の分析の試み

Volunteer Delivery of a Community-Based Strength Training Program: Comparison of Adopting and Nonadopting Extension Educator Perspectives

Volunteer leaders are increasingly being utilized to deliver community strength training classes, but the factors affecting adoption of volunteer delivery approaches by educators or program managers have not been well explored. This study sought to identify these factors by comparing perspectives of adopting and nonadopting county Extension educators for a group strength training program delivered through county Cooperative Extension offices. Semistructured interviews were conducted with a purposive sample of adopting (n=6) and nonadopting (n=13) educators. Interviews were recorded, transcribed verbatim, and coded using thematic content analysis. Review of codes related to adoption or nonadoption of volunteer delivery approaches produced common themes. Both groups acknowledged role differences between educators and volunteers and expressed concerns about maintaining program quality. Adopters expressed greater comfort with volunteer-led program approaches and understanding of the educator-volunteer role. Nonadopters were hesitant to request program participants serve as leaders but felt participants were capable. Both groups were motivated to offer the program for dual personal and community benefit, but nonadopters expressed reliance on the program to maintain physical activity habits and for social support. Findings can inform others seeking to adapt community programs for volunteer delivery or engage volunteers in existing program delivery.

Fall risk and fitness among older adults enrolled in balance and strength training classes

BackgroundThe fall risk profile of older adults who participate in community balance/strength classes for fall prevention is not well described.Aims/Objectives/PurposeWe examined fall risk and fitness in older adults taking N'Balance™,...

Successful Dissemination of a Community‐Based Strength Training Program for Older Adults by Peer and Professional Leaders: The People Exercising Program

The objective of this longitudinal study was to determine the feasibility of a model for disseminating community-based strength training programs for older adults through leadership training of laypersons or "peers" and health and fitness professionals. The intervention consisted of a progressive strength training, balance, and flexibility exercise program and a leader training and certification workshop. Feasibility was defined as 75% or more of individuals who completed leader training establishing or teaching at least two 12-week strength training classes within 1 year. Program dissemination was quantified as the number of classes established between January 2005 and December 2006. Demographic characteristics and health status of leaders and program participants were evaluated. Two hundred forty-four leaders (peers, n=149; professionals, n=95) were trained and certified. Seventy-nine percent of all leaders (n=193) met the feasibility criteria of establishing or teaching strength training classes. There was no difference in the percentage of peer leaders (80%, n=119) and professional leaders (78%, n=74) who established or taught classes (P5.71) despite significant differences in their demographic and health profiles. Ninety-seven self-sustaining strength training classes were established in senior and community centers, and 2,217 older adults (women, n=1,942; men, n=275) aged 50 to 97 with multiple chronic medical conditions enrolled. In conclusion, training peer and professional leaders is a feasible and successful model for disseminating a community strength training program for older adults. Widespread dissemination of this program has significant public health implications for increasing physical activity participation by older adults.

Teaching the Olympic-Style Lifts to College Students

Department of Health and Kinesiology College of Education Texas A&M University John M. Cissik is a section leader of strength training classes at Texas A&M University. He holds the following certifications: CSCS, USA Weightlifting Club Coach, and ACE Personal Trainer.