Inactive Condition Research Articles

Assessment of the blood lipid spectrum of workers under stressful conditions labor

The importance of dyslipidemia for health lies in the potentiation of cardiovascular diseases. We assessed the blood lipid spectrum and types of dyslipidemia in people with intense work (men aged 35.7 ± 0.8 years, n = 58). Body mass index (BMI) and nutritional status were determined. We assessed working conditions according to the degree of harmfulness and danger. A survey was conducted to establish the fact of tobacco and alcohol consumption. Mental work with high psycho-emotional stress and intensity of the work process in conditions of physical inactivity was assessed as harmful — 3.2. The proportion of smokers was 10.3 %, 100.0 % drank alcohol in moderate doses periodically. Body weight 84.6 ± 1.3 kg, BMI — 26.1 ± 0.3 kg/m2. The proportion of people with overweight and obesity was 68.4 %. Elevated triglycerides (TG) were detected in 17.7 %, total cholesterol (TC) in 60.3 %, low-density lipoproteins (LDL) in 74.0 %, reduced high-density lipoproteins (HDL) in 17.0 %. The atherogenic coefficient (AC) was 3.58 ± 0.13; in 51.8 % it exceeded the normal value. An adequate and inadequate response of the body to living conditions was evidenced by high and low levels of HDL: in 30.2 % and 5.4 % of those examined. The leading type of dyslipidemia was hypercholesterolemia (in 44.6 %). The proportion of mixed and atherogenic was 5.4 % and 1.8 %. In 23.2 %, excess levels of TC, LDL and TG in various combinations were recorded against the background of high HDL; their KA was normal. It can be assumed that physical inactivity against the background of intense work are risk factors for the development of dyslipidemia.

Continuous moderate and intermittent high-intensity exercise in youth with type 1 diabetes: Which protection for dysglycemia?

AimFrom an early age, exercise is key to managing type 1 diabetes (T1D). However, hypoglycemia around aerobic exercise is a major barrier to physical activity in children. We explore whether intermittent high-intensity aerobic exercise (IHE), designed to mimic spontaneous childhood physical activity patterns, offers better protection against glycemic drop than continuous moderate-intensity exercise (CME). MethodsFive boys and 7 girls with T1D (9.8 ± 1.4y) performed ergo cycle-based randomized CME and IHE of identical duration and total mechanical load [50 %PWC170vs. 15sec(150 %PWC170)/30 sec passive recovery; both during two 10-min sets, 5 min in-between]. Capillary glycemia during exercise and interstitial glucose during recovery were compared between exercises and an inactive condition, controlling for baseline glycemia, carbohydrate and insulin. ResultsThe exercise-induced decrease in capillary glycemia was attenuated by 1.47 mmol·L−1 for IHE vs. CME (P < 0.05). No symptomatic hypoglycemic episodes occurred during exercises. Post-exercise time in hypoglycemia did not differ between conditions. During early recovery, CME reduced time spent > 16.7 mmol·L−1 compared with inactive days (P < 0.05; CME: 0 %; IHE: 16,7 %; INACTIVE: 41,7 %). ConclusionIHE appeared to limit the glycemic drop compared to CME. Performing 20-min CME or IHE was not associated with increased hypoglycemic risk compared to being inactive. CME appeared even transiently protective against serious hyperglycemia.

Thermal Tolerance of the Shallow-Water Ostracod Cyprideis from a Lagoon in Bahrain, Western Arabian Gulf

Laboratory experiments were conducted to determine the thermal tolerance of the living ostracod Cyprideis sp. from a lagoon known as Murray’s Pool on the east coast of Bahrain, in the western Arabian Gulf. Our experimental trials, run in duplicate using a semi-controlled thermal incubator, demonstrate the resilience of the ostracod community to elevated temperatures. We observed that ostracod specimens begin to enter an inactive condition or become comatose at about 39.4 °C, and with increase in temperatures, half of the specimens died or did not recover at 51.8 °C. At 53.5 °C, total mortality is observed with no indication of recovery. These observations have implications for climate change predictions in the western Gulf region, as water temperatures in the lagoon reach 42 °C in summer, while the substrate temperatures on mud flats exposed during low tide exceed the lethal limit of the ostracods during the summer months.

A novel methodology to estimate the importance of isotopic exchange in the CH3I adsorption by impregnated activated carbons

Activated Carbons (AC) are widely used in the ventilation lines of nuclear facilities for the removal of volatile iodine species. In this paper, new experimental methodologies have been developed in order to measure the BreakThrough Curves (BTC) of both radioactive and stable CH3I for KI- or TEDA- impregnated AC {T = 20 – 30 °C, dry conditions}. Non-impregnated and KI-impregnated AC were shown to display similar performances for the trapping of stable CH3127I. In that case, only physical interactions within the micropores were involved in the adsorption process. A significant improvement of the retention occurred after TEDA impregnation. Regarding the trapping of the γ-labelled CH3I, a significant enhancement of AC performances during both retention and breakthrough phases is observed after KI impregnation due to the promotion of isotopic exchange phenomenon. Therefore, the contribution of KI, still rarely studied in the literature, was isolated for the first time from the other mechanisms (physisorption and chemisorption). The in-depth analysis of BTC data obtained under active and inactive conditions allowed quantifying the contribution due to isotopic exchange.

PV PANEL COOLING USING STACK EFFECT

Unsatisfactory feat of the photo-voltaic cell is solitary in every of the foremost issues among the promotion of PV technology. A vital strand changing cell performance is operative temperature of the cell. The voltage of the cell, declines near directly with a rise in the operative temperature of the photo-voltaic cell. The temperature condition on the in-operative surface of a photo-voltaic panel remains usually 22–30°C beyond the normal temperature conditions. Upon the premise concerning those issues, the potency of the photo-voltaic cell will be refined by sustaining their operative temperatures as low as possible. This paper portrays a technique of PV/solar panel cooling using convection generated by the chimney effect. This paper considers the diminution of warmth from the Photo-voltaic panel for both active and inactive conditions.

The course and branching of the extraorgan veins of the organs of urination in the arctic fox

When keeping fur-bearing animals, it is necessary to take into account that these animals have increased motor activity when they are in natural biogeocinosis. Due to the fact that these representatives of fur-bearing animals are kept in conditions of inactivity, this can inevitably lead to changes in the structure of the cardiovascular system. The purpose of the study is to study the features of the course and branching of extraorgan veins of the organs of urination in Arctic foxes, to determine the morphometric data of these vessels. The objects for this study were the corpses of female arctic foxes of two age groups: newborns and three to four months, five in each group. To achieve this task, a set of traditional anatomical research methods was used. According to the results of the study, it was found that the course and branching of the extraorgan vessels of the organs of urination in female arctic foxes is different. The main outflow of blood from the kidneys are the right and left renal veins; from the ureter – the cranial and caudal branches of the ureter; from the tip of the bladder – the cranial cystic vein; from the body and the bottom of the bladder is the caudal cystic vein. It is also necessary to note the close relationship of the organs of urination with the reproductive system, since the left renal vein communicates with the ovarian. In addition, we have established the presence of rare valves in the veins of the ureters and bladder, and the absence of such in the vessels of the kidneys. Thus, based on linear parameters, it can be concluded that the diameter of the veins gradually increases with the growth of the animal, especially by the period of maturation and intensification of organs.

CFD Modeling of Pressure Drop through an OCP Server for Data Center Applications

Modeling IT equipment is of critical importance for the simulations of flow and thermal structures in air cooled data centers. Turbulent flow undergoes a significant pressure drop through the server due to the energy losses originating from the internal components. Therefore, there is an urgent need to develop a fast and an accurate method for the calculation of pressure losses inside server components for data center applications. In this study, high resolution numerical simulations were performed on an OCP (Open Compute Project) server under various inlet flow rates for inactive and active conditions. Meanwhile, one key challenge of modeling complete geometry of the server results from using an intense mesh even for a single server. To address this challenge, the server was modeled as a porous zone to mimic inertia and viscous resistance in a realistic way. Comparison of the results of porous and complete models showed that the proposed model could calculate pressure drop accurately even when the number of cells in the server was reduced to 0.3% of the complete model. Porosity coefficients were determined from the numerical simulations conducted in a broad range of air discharge for both active and inactive conditions. Errors in the calculation of pressure drop may result in a significant deviation in the prediction of the temperature rise over the server. Thus, the present model can effectively be used for the fast and accurate prediction of pressure drop inside a server component rather than solving internal flow on an intense mesh, while simulating airflow inside an air-cooled data center, which is crucial for the design safety of data centers. Finally, calculated porosity coefficients can be used for the prediction of the pressure drop in a server, while designing data centers based on numerical simulations.

Investigating the interaction between Shewanella oneidensis and phenazine 1-carboxylic acid in the microbial electrochemical processes

Many exoelectrogens utilize small redox mediators for extracellular electron transfer (EET). Notable examples include Shewanella species, which synthesize flavins, and Pseudomonas species, which produce phenazines. In natural and engineered environments, redox-active metabolites from different organisms coexist. The interaction between Shewanella oneidensis and phenazine 1-carboxylic acid (PCA, a representative phenazine compound) was investigated to demonstrate exoelectrogens utilizing metabolites secreted by other organisms as redox mediators. After 24 h in a reactor with and without added PCA (1 μM), the anodic current generated by Shewanella was 235 ± 11 and 51.7 ± 2.8 μA, respectively. Shewanella produced oxidative current approximately three times as high with medium containing PCA as with medium containing the same concentration of riboflavin. PCA also stimulated inward EET in Shewanella. The strong effect of PCA on EET was attributed to its enrichment at the biofilm/electrode interface. The PCA voltammetric peak heights with a Shewanella bioanode were 25–30 times higher than under abiotic conditions. The electrochemical properties of PCA were also altered by the transition from two-electron to single-electron electrochemistry, which suggests PCA was bound between the electrode and cell surface redox proteins. This behavior would benefit electroactive bacteria, which usually dwell in open systems where mediators are present in low concentrations. Like flavins, PCA can be immobilized under both bioanode and biocathode conditions but not under metabolically inactive conditions. Shewanella rapidly transfers electrons to PCA via its Mtr pathway. Compared with wild-type Shewanella, the PCA reduction ability was decreased in gene knockout mutants lacking Mtr pathway cytochromes, especially in the mutants with severely undermined electrode-reduction capacities. These strains also lost the ability to immobilize PCA, even under current-generating conditions.

The Inner Wasteland in Selected Later Plays of Samuel Beckett

The inner wasteland can be observed in Samuel Beckett’s early and later plays. His characters suffer from loss of identity, emotions, and sense of time. They lead a life of failure, repetition, inaction, loneliness, doubt, suffering, and nothingness. The inner wasteland includes many aspects, such as the multi and split identity, the habitual repetitive element of life, the dark sorrowful life the characters lead, lack of communication and relations among them, their unfree, inactive condition, their foggy terrible recollections, loneliness, dryness of love, and uncertainty. The analysis and the illustration of each aspect will show how the inner wasteland is intensified in the selected later plays of Beckett.

Bank loan information and information asymmetry in the stock market: evidence from China

In this study, we use bank loan information to construct proxies for corporate transparency and examine whether these measures reflect information asymmetry in the stock market. Our analysis is based on a novel dataset of stock transactions and bank loans of all publicly listed firms on the Shenzhen Stock Exchange, covering January 2008 to June 2013. We find that firms with outstanding loans have a lower level of information asymmetry in the stock market, whereas firms with defaulted loans have a higher level of asymmetry. Further evidence demonstrates that the effect of loan default on information asymmetry in the stock market is more pronounced when these loans are borrowed from joint-equity commercial banks or multiple banks and when the default occurs under inactive market conditions. Our results remain robust to a series of endogeneity and sensitivity tests and provide suggestive evidence of a close connection between the credit loan and stock markets.

Диагностика и методика за оптимизиране на физическата дееспособ- ност на 10-годишни ученици

Contemporary school children grow and develop under conditions of physical inactivity and that reduced physical activity causes great and irreparable damage to their developing organisms. This lack of activity most significantly affects children’s physical capacity. The present research reveals the components that determine the physical capacity and the possibilities for its improvement through the development of the basic fitness components /speed, strength, endurance, agility and flexibility/. The presented study traces the dynamics of the development of fitness components of primary school students through tests of physical capacity. The objective of this study is to diagnose and optimize the level of physical capacity of students of primary school age. The subject of the study are the skill-related fitness components of 10-year-old students, which are a main factor reflecting the physical capacity of children. The object of the study are 40 ten-year-old boys, formed in two groups - control and experimental. The research involved literature review; classroom observation; educational experiment – a physical fitness test battery to measure the level of students’ physical capacity; processing and analysis of the collected data. A program for optimizing the fitness components is proposed - trainings, indicative training volume and repetitions. It was found that the program that was implemented led to an increase in the physical capacity of the students that were studied.

Blue-Light Therapy for Seasonal and Non-Seasonal Depression: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

ObjectivesTo determine the efficacy and safety of blue-light therapy in seasonal and non-seasonal major depressive disorder (MDD), by comparison to active and inactive control conditions.MethodsWe searched Web of Science, EMBASE, Medline, PsycInfo, and Clinicaltrials.gov through January 17, 2022, for randomized controlled trials (RCTs) using search terms for blue/blue-enhanced, light therapy, and depression/seasonal affective disorder. Two independent reviewers extracted data. The primary outcome was the difference in endpoint scores on the Structured Interview Guide for the Hamilton Depression Rating Scale - Seasonal Affective Disorder (SIGH-SAD) or the Structured Interview Guide for the Hamilton Depression Rating Scale with Atypical Depression Supplement (SIGH-ADS) between blue light and comparison conditions. Secondary outcomes were response (≥ 50% improvement from baseline to endpoint on a depression scale) and remission rates (endpoint score in the remission range).ResultsOf 582 articles retrieved, we included nine RCTs (n = 347 participants) assessing blue-light therapy. Seven studies had participants with seasonal MDD and two studies included participants with non-seasonal MDD. Four studies compared blue light to an inactive light condition (efficacy studies), and five studies compared it to an active condition (comparison studies). For the primary outcome, a meta-analysis with random-effects models found no evidence for the efficacy of blue-light conditions compared to inactive conditions (mean difference [MD] = 2.43; 95% confidence interval [CI], −1.28 to 6.14, P = 0.20); however, blue-light also showed no differences compared to active conditions (MD = −0.11; 95% CI, −2.38 to 2.16, P = 0.93). There were no significant differences in response and remission rates between blue-light conditions and inactive or active light conditions. Blue-light therapy was overall well-tolerated.ConclusionsThe efficacy of blue-light therapy in the treatment of seasonal and non-seasonal MDD remains unproven. Future trials should be of longer duration, include larger sample sizes, and attempt to better standardize the parameters of light therapy.

Re-thinking benign inflammation of the lactating breast: Classification, prevention, and management.

Despite the known benefits of breastfeeding for both infant and mother, clinical support for problems such as benign inflammation of the lactating breast remain a research frontier. Breast pain associated with inflammation is a common reason for premature weaning. Multiple diagnoses are used for benign inflammatory conditions of the lactating breast which lack agreed or evidence-based aetiology, definitions, and treatment. This article is the second in a three-part series. This second review analyses the heterogeneous research literature concerning benign lactation-related breast inflammation from the perspectives of the mechanobiological model and complexity science, to re-think classification, prevention, and management of lactation-related breast inflammation. Benign lactation-related breast inflammation is a spectrum condition, either localized or generalized. Acute benign lactation-related breast inflammation includes engorgement and the commonly used but poorly defined diagnoses of blocked ducts, phlegmon, mammary candidiasis, subacute mastitis, and mastitis. End-stage (non-malignant) lactation-related breast inflammation presents as the active inflammations of abscess, fistula, and septicaemia, and the inactive condition of a galactocoele. The first preventive or management principle of breast inflammation is avoidance of excessively high intra-alveolar and intra-ductal pressures, which prevents strain and rupture of a critical mass of lactocyte tight junctions. This is achieved by frequent and flexible milk removal. The second preventive or management principle is elimination of the mechanical forces which result in high intra-alveolar pressures. This requires elimination of conflicting vectors of force upon the nipple and breast tissue during milk removal; avoidance of focussed external pressure applied to the breast, including avoidance of lump massage or vibration; and avoidance of other prolonged external pressures upon the breast. Three other key preventive or management principles are discussed. Conservative management is expected to be effective for most, once recommendations to massage or vibrate out lumps, which worsen micro-vascular trauma and inflammation, are ceased.

The Coronavirus and the Earth’s Thinking: An Anthropological Issue

Abstract The article develops the hypothesis that Covid-19 is one of the most significant results of the Anthropocene era. Indifferent to nature’s veiled, but not inactive conditions, the human era advances over woods and forests, intensifying the increase of emerging infectious diseases, especially those caused by pathogens that generate zoonoses. In addition to health matters, this circumstance implies the urgent revision of the cultural tradition that conceives the energies of nature as availability. Based on these findings, the text criticizes the cultural determination of anthropocentrism, suggesting that the crisis caused by the coronavirus also represents the possibility of new mediations with nature. The thesis defends that, despite the anguish caused by the proximity to death, the pandemic is an opportunity to open our ears anew to listen to the Earth’s thinking.

Seawater activates l-amino acid oxidase from the serum of the red-spotted grouper Epinephelusakaara

l-amino acid oxidases (LAOs) catalyze the oxidative deamination of l-amino acid and generate α-keto acid, ammonia, and hydrogen peroxide as byproducts. LAOs showed the variety of bioactivity by the resulting hydrogen peroxide. The serum of the red-spotted grouper Epinephelus akaara contains an LAO (Ea-LAO) with the potential to kill bacterial pathogens Aeromonas salmonicida and Vibrio anguillarum via hydrogen peroxide. However, it is unknown how the grouper tolerates the harmful effects of the serum Ea-LAO byproducts. In this study, we analyzed the kinetics of fish LAOs to understand how they escape the toxicity of byproducts. The LAO activity of grouper serum was suppressed in low-salt solutions such as NaCl, CaCl2, MgCl2, and diluted seawater. The activity was non-linearly increased and fitted to the four-parameter log-logistic model. The EC50 of the seawater was calculated to have a 0.72-fold concentration. This result suggested that the Ea-LAO could be activated by mixing with seawater. The results of circular dichroism spectroscopy showed that the α helix content was estimated to be 12.1% and 5.3% in a salt-free buffer (inactive condition) and the original concentration of seawater (active condition), respectively, indicating that the secondary structure of the Ea-LAO in the active condition was randomized. In addition, the Ea-LAO showed reversible LAO activity regulation according to the salt concentration in the environment. Taken together, this indicates that the Ea-LAO is normally on standby as an inactive form, and it could activate as a host-defense molecule to avoid pathogen invasion via a wound when mixed with seawater.

Dual gate-keeping and reversible on-off switching drug release for anti-cancer therapy with pH- and NIR light-responsive mesoporous silica-coated gold nanorods

This work reports the fabrication of AuNR@MSNs [i.e., gold nanorods (AuNRs) coated with mesoporous silica nanoshells (MSNs)] with independent sensitivities to pH and near-infrared (NIR) light for reversible on–off switching of drug release without premature drug leakage. The fabrication involves the incorporation of lauric acid (LA) as a thermosensitive gatekeeper, followed by the coating of tannic acid (TA) layers as a pH-sensitive gatekeeper. The protonation–deprotonation of the TA layers according to change in pH can result in their swelling–deswelling to induce pH-sensitive drug release, while the solid–liquid phase transition of LA by NIR light-induced heat generation in AuNRs enables the NIR light-controlled release of preloaded drug molecules. The interplay between these dual gatekeepers allows the release of pre-loaded drug from the AuNR@MSN-LA@TAs (i.e., AuNR@MSNs incorporating LA and TA) only at acidic conditions under NIR light irradiation, without premature drug leakage under inactive conditions (neutral pH or no NIR light). Moreover, the reversibility of the gatekeepers can make an on–off mannered drug release. Benefiting from the capability of the gatekeepers to induce pH-/temperature-sensitive release, along with the photothermal ability of AuNRs, the AuNR@MSN-LA@TAs can exhibit a satisfactory anticancer performance without undesired drug leakage.

Prevalence of Coronary Heart Disease (CHD) and Selected Risk Factors of CHD, Among People Aged 30-64 Years in the District of Gampaha, Sri Lanka

Background- Coronary heart disease (CHD) is the leading cause of hospital deaths in Sri Lanka. The underlying risk factors include; tobacco smoking, unhealthy diet, harmful alcohol use, physical inactivity, and medical conditions; hypertension, diabetes mellitus, obesity, dyslipidaemia. Objective of this study was to determine prevalence of CHD and risk factors among people aged 30-64 in Gampaha District, Sri Lanka. Methods- A community based cross-sectional study was conducted among 1192 people aged 30-64 years in district of Gampaha, recruited by probability proportionate to the population size, cluster sampling. Data were collected using a pre-tested interviewer-administered questionnaire on prevalence of CHD, hypertension, diabetes mellitus, dyslipidaemia, obesity, harmful alcohol use, unhealthy diet, physical inactivity and tobacco smoking and anthropometric measurements by trained data collectors. Twelve-lead ECG, blood pressure, fasting plasma glucose and lipid levels were done for previously undiagnosed. Data were analyzed using SPSS-21. Results- The estimated prevalence of CHD based on already diagnosed cases and Rose positive angina 6.9% (95% CI 5.4% – 8.4%), CHD based on already diagnosed cases and ECG 6.4 (95% CI 4.9% – 7.8%), hypertension 37.5% (95% CI 34.7% to 40.3%), diabetes mellitus 17.4% (95% CI 15.2% to 19.6%), dyslipidaemia 66.5% (95% CI 63.8% – 69.2%). The estimated prevalence of other modifiable risk factors of generalized obesity (BMI≥25.0) (44.0%, 95%CI41.1-46.9), sub-optimal quality diet (71.9%, 95%CI 69.3-74.5), low level of physical activity (21.7%, 95%CI 19.3-24.1), heavy or high-risk drinking 11.4% (95%CI 9.56-13.2), smoking 14.2% (95%CI 12.2-16.2). Conclusions- Estimated prevalence of CHD and selected risk factors were high in Gampaha District with a large proportion of previously undiagnosed disease. Immediate public health action is needed including training programs for healthcare workers on detection of risk factors and awareness among the public for screening for risk factors.

Traffic Intensity Based Energy Efficiency Architecture for Data-Centers

The world is moving towards cost-effective and time-constrained solutions. The uses of applications and automated devices have been growing day by day. In computing, resources available in personal computers are limited due to less storage capacity and lower computation speeds. Using all applications on personal systems may not be cost-effective. Therefore, the trends of online storage and computing have become popular. On the other hand, there must be some serving end for these users. One of the major issues, due to the growth of data centers is the increase in power usage of a larger number of servers and network devices. These devices are power-hungry and consume energy even during idle hours even if there are no network traffic loads. The cost of energy used and dissipated is increased in this situation. In this paper, we have given a solution for efficient usage of energy efficiency in data center networks based on traffic loads. We have proposed a model to use traffic intensity to decide the number of machines inactive conditions so that we can save the energy consumption in data center networks. We have implemented this proposed model and simulated it to validate it.

Formation of health and safety competence of students in the process of physical education by means of distance learning

The article is devoted to the topical problem of preserving and strengthening the health of students and testifies to the intersectoral nature of the research problem. It is determined that the problem of improving the health of young people cannot be considered outside the context of physical education, which as a function of general pedagogy is a method of forming their health-preserving competence. It is substantiated that the means of distance learning as an innovative software technology are a quality service of providing information and a tool for the formation of health competence during the coronavirus epidemic. The purpose of the work is to identify and substantiate the pedagogical foundations of the formation of health competence of students in the process of their physical education in higher education institutions by means of distance learning. Research methods: theoretical analysis, systematization, comparison of different views on the researched problem, generalization of data of scientific-methodical and special literature. The functioning of the distance learning environment is positioned as an important reserve for updating the educational process of physical education of students. It is justified that during quarantine you should not stop exercising. In such a situation, conscious independent work becomes of paramount importance. The final analysis established that the formation of health-preserving competence of students by means of distance learning in physical education integrates: information and communication competence, health education technology, health technologies, health culture education. It seems likely that in this process, the development of interest, skills and related special knowledge of health should be developed. The result of the formation of health-preserving competence in the course of physical education by distance learning should be the development of students' need for physical self-improvement, regular physical education, responsible and competent attitude to their health, the formation of healthy lifestyle values that will determine their behavior based on motivation to strengthen their health under harsh conditions of forced physical inactivity during training.

Decreasing Heart Rate After Physical Activity Reduces Choking.

We occasionally place our bodies under pressure, for example, by playing sports or giving an important presentation at a business meeting. In such situations, most of us have experienced choking, which impairs performance. It has been reported that controlling the heart rate is effective at reducing anxiety, which is one of the causes of choking. Previous studies have proposed a method of reducing choking by undergoing special training for controlling heart rate. Here, we investigated whether a reduction in heart rate after physical activity reduces choking without any special training. Participants bowled under both high-pressure and low-pressure conditions. Before throwing the bowling ball, half of the participants ran on the spot (active condition), whereas the rest of the participants stood instead of running (inactive condition). After controlling for the baseline score, the bowling score in the high-pressure and active condition was significantly better than that in the inactive condition. Additionally, the reduction in heart rate in the active condition was larger than that in the inactive condition. These results suggest that the reduction in heart rate prevented choking without any specific training.