An open-source, lockable mouse wheel for the accessible implementation of time- and distance-limited elective exercise

Current methods of small animal exercise involve either voluntary (wheel running) or forced (treadmill running) protocols. Although commonly used, each have several drawbacks which cause hesitancy to adopt these methods. While mice will instinctively run on a wheel, the distance and time spent running can vary widely. Forced exercise, while controllable, puts animals in stressful environments in which they are confined and often shocked for “encouragement.” Additionally, both methods require expensive equipment and software, which limit these experiments to well-funded laboratories. To counter these issues, we developed a non-invasive mouse running device aimed to reduce handler-induced stress, provide time- and distance-based stopping conditions, and enable investigators with limited resources to easily produce and use the device. The Lockable Open-Source Training-Wheel (LOST-Wheel) was designed to be 3D printed on any standard entry-level printer and assembled using a few common tools for around 20 USD. It features an on-board screen and is capable of tracking distances, running time, and velocities of mice. The LOST-Wheel overcomes the largest drawback to voluntary exercise, which is the inability to control when and how long mice run, using a servo driven mechanism that locks and unlocks the running surface according to the protocol of the investigator. While the LOST-Wheel can be used without a computer connection, we designed an accompanying application to provide scientists with additional analyses. The LOST-Wheel Logger, an R-based application, displays milestones and plots on a user-friendly dashboard. Using the LOST-Wheel, we implemented a timed running experiment that showed distance-dependent decreases in serum myostatin as well as IL-6 gene upregulation in muscle. To make this device accessible, we are releasing the designs, application, and manual in an open-source format. The implementation of the LOST-Wheel and future iterations will improve upon existing murine exercise equipment and research.

Participation in physical activity decreased more in people with rheumatoid arthritis than the general population during the COVID-19 lockdown: a cross-sectional study

The COVID-19 pandemic and social distancing restrictions have significantly reduced population-wide physical activity (PA) levels. However, the impact of the pandemic and relevant restrictions on PA participation, and any potential barriers to it, in people with rheumatoid arthritis (RA) are not clear. Furthermore, we are unsure if any such PA changes have affected their body weight, mental wellbeing, and/or quality of life (QoL). Thus, the aim of this study was to examine the impact of the lockdown on PA participation in people with RA, versus people without RA. Participants (n = 128; RA = 27, non-RA = 101) completed a self-administered online survey, which included questions on PA, body weight, mental wellbeing and QoL. PA participation during lockdown was significantly lower among RA versus non-RA participants (p < 0.001). Additionally, a similar profile of results was found where more RA participants vs non-RA participants reported reduced habitual PA (59% vs 33%) and increased body weight (59% vs 35%). Mental wellbeing scores were similarly low in both groups during lockdown (RA: 20.8 ± 4.2; non-RA: 22.2 ± 3.4, p = 0.080). Matched group comparisons identified similar trends to full sample analyses. In the first months of the lockdown, more people with RA reported decreased PA participation and increased body weight than their non-RA counterparts. Access to exercise equipment and facilities appears to be the main cause for these results. Looking beyond COVID-19, specific PA promotion for people with RA will be required to prevent a pandemic of inactivity.

“Do you find it normal to be so fat?” Weight stigma in obese gym users

Weight stigma is a negative social process that involves discrimination against overweight and obese people. Gyms are important environments to promote exercise where weight stigma can be a hindrance for obese exercise practitioners. This critical-oriented study provides evidence-based answers to this question: How do obese users experience weight stigma in gyms? Six obese gym users (BMI >30) participated in semi-structured interviews and provided visual data for photo-elicitation. A thematic analysis enabled the grouping of their experiences around weight stigma into three forms of discrimination: 1) direct: negative comments about body weight and body size; 2) indirect: internalization of negative stereotypes on weight, ability or appearance; 3) structural: explicit or symbolic rejection related with weight-centric exercise, equipment and recommendations implicit in marketing and advertising. The results provide evidence and interpretations of different forms of discrimination and inequality that operate in gyms, and how they affect obese users’ experiences. Based on these results, we compile a list of measures to prevent weight stigma and recommendations for exercise professionals to relate with obese users.

Minimal versus specialist equipment in the delivery of pulmonary rehabilitation: protocol for a non-inferiority randomised controlled trial

IntroductionPulmonary rehabilitation (PR), an exercise and education programme for people with chronic lung disease, aims to improve exercise capacity, breathlessness and quality of life. Most evidence to support PR is from trials that use specialist exercise equipment, for example, treadmills (PR-gym). However, a significant proportion of programmes do not have access to specialist equipment with training completed with minimal exercise equipment (PR-min). There is a paucity of robust literature examining the efficacy of supervised, centre-based PR-min. We aim to determine whether an 8-week supervised, centre-based PR-min programme is non-inferior to a standard 8-week supervised, centre-based PR-gym programme in terms of exercise capacity and health outcomes for patients with chronic lung disease.Methods and analysisParallel, two-group, assessor-blinded and statistician-blinded, non-inferiority randomised trial. 436 participants will be randomised using minimisation at the individual level with a 1:1 allocation to PR-min (intervention) or PR-gym (control). Assessment will take place pre-PR (visit 1), post-PR (visit 2) and 12 months following visit 1 (visit 3). Exercise capacity (incremental shuttle walk test), dyspnoea (Chronic Respiratory Questionnaire (CRQ)-Dyspnoea), health-related quality of life (CRQ), frailty (Short Physical Performance Battery), muscle strength (isometric quadriceps maximum voluntary contraction), patient satisfaction (Global Rating of Change Questionnaire), health economic as well as safety and trial process data will be measured. The primary outcome is change in exercise capacity between visit 1 and visit 2. Two sample t-tests on an intention to treat basis will be used to estimate the difference in mean primary and secondary outcomes between patients randomised to PR-gym and PR-min.Ethics and disseminationLondon-Camden and Kings Cross Research Ethics Committee and Health Research Authority have approved the study (18/LO/0315). Results will be submitted for publication in peer-reviewed journals, presented at international conferences, disseminated through social media, patient and public routes and directly shared with stakeholders.Trial registration numberISRCTN16196765.

Using nominal group technique to advance power assisted exercise equipment for people with stroke

Background Power assisted exercise is accessible and acceptable for people with stroke. The potential for technological advancement of the equipment to improve the user experience has been identified. Involvement of end users and service providers in the design of health technologies is essential in determining how said technology is perceived and adopted. This project invited people with stroke and service providers to influence design features and determine machine selection in the preliminary stages of a codesign research programme. Aims To capture the perspectives of people with stroke and professionals working with people with stroke about proposed digitalisation of power assisted exercise equipment and select machines for prototype development. Methods Nominal group technique was used to capture the perspectives, ideas, preferences and priorities of three stakeholder groups: people with stroke (n = 3, mean age 66 years), rehabilitation professionals (n = 3) and exercise scientists (n = 3). Two questions underpinned the structure of the events; ‘What does an assistive exercise machine need to do to allow the person with stroke to engage in exercise?’ and ‘Which machines would you prioritise for use with People with Stroke?’ Attendees were invited to cast votes to indicate their preferred machines. Findings Synthesis of the data from the NGT identified four domains; software and interface, exercise programme, machine and accessories, setting and service. Three preferred machines from a range of nine were identified through vote counting. Conclusion Nominal group technique directed the selection of machines to be included in the development of the proposed technology. The vision shared by users during the structured discussion shaped the subsequent steps in the design and testing of the new technology. Patient and service provider contribution The opinions and preferences of people with stroke, rehabilitation professionals and exercise scientists were central to key decisions which will shape the digitalisation of power assisted equipment, influence future research and guide implementation of the new technologies.

Efectos fisiológicos agudos de un dispositivo para ejercitarse en casa (Acute physiological response to exercising with a piece of home equipment )

A la luz de la importancia de la actividad física regular como un elemento clave en la prevención de muchas enfermedades, se reportan a continuación los resultados del estudio realizado con un aparato para ejercitarse en la casa. 22 estudiantes universitarios jóvenes, aparentemente saludables, participaron en el estudio. Se midió el efecto agudo de 10 minutos de ejercicio con el dispositivo sobre la frecuencia cardíaca, el costo energético y la circulación periférica en las piernas. Se contrastan los resultados obtenidos con las afirmaciones que se hacen en distintas versiones de publicidad del aparato en cuestión. No se obtuvieron efectos fisiológicos agudos significativos de la utilización del dispositivo durante 10 minutos continuos: la frecuencia cardíaca aumentó apenas 8 latidos por minuto con respecto al reposo y la temperatura cutánea no varió o más bien disminuyó. El costo energético no fue significativamente mayor mientras se usaba el dispositivo en comparación con la condición de reposo. Estos resultados sugieren que aquellas personas que utilicen este dispositivo en sustitución de la actividad física regular estarán sacrificando beneficios importantes para su salud. Abstract. The importance of doing regular physical activity (exercise) as a key element in the prevention of several diseases is well known. The following experiment was performed to evaluate the acute physiological effects of a home-exercise machine on 22 young, apparently healthy, university students. While the individuals exercised in the machine for ten (10) minutes, measures of heart rate, energy expenditure and peripheral circulation to the legs were taken and recorded. The results were contrasted against the claims made in different ads promoting the selected apparatus. There were no significant acute physiological effects resulting from the utilization of the machine during a 10-minute period. Heart rate increased only 8 beats per minute (bpm) from baseline and the temperature measured on the legs showed no variation or was even reduced. Energy expenditure was not significantly higher while using the device in comparison with the resting condition. These results suggest that consumers using this home-exercise equipment as a substitute of performing regular physical activity will be sacrificing important health benefits.

Using Nominal Group Technique To Advance Power Assisted Exercise Equipment For People With Stroke

BackgroundPower assisted exercise is accessible and acceptable for people with stroke. The potential for technological advancement of the equipment to improve the user experience has been identified. Involvement of end users and service providers in the design of health technologies is essential in determining how said technology is perceived and adopted. This project invited people with stroke and service providers to influence design features and determine machine selection in the preliminary stages of a codesign research programme. AimsTo capture the perspectives of people with stroke and professionals working with people with stroke about proposed digitalisation of power assisted exercise equipment and select machines for prototype development.MethodsNominal group technique was used to capture the perspectives, ideas, preferences and priorities of three stakeholder groups: people with stroke, rehabilitation professionals and exercise scientists. Two questions underpinned the structure of the events; ‘What does an assistive exercise machine need to do to allow the person with stroke to engage in exercise?’ and ‘Which machines would you prioritise for use with PwS?’ Attendees were invited to cast votes to indicate their preferred machines. FindingsSynthesis of the data from the NGT identified four domains; software and interface, exercise programme, machine and accessories, setting and service. Three preferred machines from a range of nine were identified through vote counting. ConclusionNominal group technique enabled a structured approach to patient and public involvement at the outset of a co-design project to advance rehabilitation technologies for people with stroke. Patient and service provider contributionThe opinions and preferences of people with stroke, rehabilitation professionals and exercise scientists were central to key decisions which will shape the digitalisation of power assisted equipment, influence future research and guide implementation of the new technologies.

Challenges and lessons learnt from the ENJOY project: recommendations for future collaborative research implementation framework with local governments for improving the environment to promote physical activity for older people

Background The physical environment has been shown to have a positive effect on the promotion of physical activity of older people. Outdoor environments that incorporate specialised exercise equipment suitable for older people are uniquely placed to promote physical activity and social connectedness amongst older people. The ENJOY project included the installation of specialised outdoor exercise equipment (the Seniors Exercise Park) and the delivery of a physical and social activity program for older people as part of a prospective pre-post research design. The installation of the specialised equipment in public sites and an aged care facility was also aimed at increasing usage of the equipment by older people from the wider community and to increase physical and social activities. Method A conceptual framework for implementation and several engagement methods were utilised to guide the research and to support the participating partners throughout the project. This paper is a reflective narrative describing the collaborative process and approach utilised to engage local governments and community, and reports the challenges and the lessons learnt to inform future strategies for implementation. Results The conceptual framework for the implementation process that guided the conduct and delivery of the ENJOY project included the core elements of the Interactive Systems Framework and the ecologic framework. These models incorporate elements of research-to-practice and community-centred implementation to accommodate the unique perspectives of a range of stakeholders. Conclusion Partner characteristics such as local governments’ structure and policy as well as community factors can impact on implementation. Partnership with local governments with effective communication, strategic planning and community and seniors engagement approaches are recommended for successful implementation. The lessons learnt can further assist public health research design around changes to the built environment to positively impact on older people’s physical activity levels. Trial registration Trial registration number ACTRN12618001727235. Date of registration 19th October 2018, https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=375979

Simulation research on the apparatus work of rhythmic gymnastics ball with CFD technology

With the application of CFD technology in the field of sports engineering research, there are many research results on ball sports such as football and table tennis, but less research on rhythmic gymnastics equipment for difficult and beautiful sports. This paper uses ADAMS dynamic analysis software to carry out CFD simulation test on ball exercise equipment, and explore the influence of different parameters on the air movement of ball equipment. The results are as follows: (1) the factors that affect the track of rhythmic gymnastics ball in the air are the mass, volume, velocity of the ball, as well as the forces of the ball in the air. (2) The rotation speed of the ball is an important factor affecting the lateral bending degree of the track of rhythmic gymnastics ball. The rotation speed and the air pressure difference between the left and right sides of the ball are directly proportional to the curvature of the running track.(3) The gliding performance of rhythmic gymnastics ball mainly depends on the value of lift drag ratio, which has an important influence on the flight height and flight time of the ball, and its size changes with the attack angle. And there are some suggestions: rhythmic gymnastics ball in the air belongs to non dynamic flight. It is suggested that in practice, the athlete should consider a series of factors, such as the initial velocity of the ball, the throwing angle and the height of the shooting point, so as to effectively control the flight radian, distance and height of the artistic gymnastics ball.