Short-duration aerobic high-intensity intervals versus moderate exercise training intensity in patients with peripheral artery disease: study protocol for a randomised controlled trial (the Angiof-HIIT Study).

Supervised exercise training is among the first-line therapies for patients with peripheral artery disease (PAD). Current recommendations for exercise include guidance focusing on claudication pain, programme and session duration, and frequency. However, no guidance is offered regarding exercise training intensity. This study aims to compare the effects of 12-week-long supervised walking exercise training (high-intensity interval training (HIIT) vs moderate-intensity exercise (MOD)) in patients with chronic symptomatic PAD. This study is a monocentric, interventional, non-blinded randomised controlled trial. 60 patients (30 in each group) will be randomly allocated (by using the random permuted blocks) to 12 weeks (three times a week) of HIIT or MOD. For HIIT, exercise sessions will consist of alternating brief high-intensity (≥85% of the peak heart rate (HR <sub>peak</sub> )) periods (≤60 s) of work with periods of passive rest. Patients will be asked to complete 1 and then 2 sets of 5-7 (progressing to 10-15×60 s) walking intervals. For the MOD group, exercise training sessions will consist of an alternation of periods of work performed at moderate intensity (≤76% HR <sub>peak</sub> ) and periods of passive rest. Interventions will be matched by training load. The primary outcome will be the maximal walking distance. Secondary outcomes will include functional performance, functional capacity, heath-related quality of life, self-perceived walking abilities, physical activity and haemodynamic parameters. The Angiof-HIIT Study was approved by the Human Research Ethics Committee of the Canton de Vaud (study number: 2022-01752). Written consent is mandatory prior to enrolment and randomisation. The results will be disseminated via national and international scientific meetings, scientific peer-reviewed journals and social media. NCT05612945

Feasibility of a prehabilitation program before major abdominal surgery: a pilot prospective study.

To assess the feasibility of a prehabilitation program and its effects on physical performance and outcomes after major abdominal surgery. In this prospective pilot study, patients underwent prehabilitation involving three training sessions per week for 3 weeks preoperatively. The feasibility of delivering the intervention was assessed based on recruitment and adherence to the program. Its impacts on fitness (oxygen uptake (VO <sub>2</sub> )) and physical performance (Timed Up and Go Test, 6-Minute Walk Test) were evaluated. From May 2017 to January 2020, 980 patients were identified and 44 (4.5%) were invited to participate. The main obstacles to patient recruitment were insufficient time (<3 weeks) prior to scheduled surgery (n = 276, 28%) and screening failure (n = 312, 32%). Of the 44 patients, 24 (55%) declined to participate, and 20 (23%) were included. Of these, six (30%) were not adherent to the program. Among the remaining 14 patients, VO <sub>2</sub> at ventilatory threshold significantly increased from 9.7 to 10.9 mL/min/kg. No significant difference in physical performance was observed before and after prehabilitation. Although prehabilitation seemed to have positive effects on exercise capacity, logistic and patient-related difficulties were encountered. The program is not feasible in its current form for all-comers

Health coaching triathlon: a model of involvement in asports federation

International audienceRegular physical activity is now considered as a therapeutic per se for sedentary people or those with chronic diseases, and learned societies of sports medicine have developed the mantra “Exercise is medicine”. However, despite the overwhelming evidence of its benefits on health and prevention of non-communicable diseases, there is still a gap between scientific data and development of exercise-based prevention program in the general population, or in clinical setting.The path for the recognition of sports as a major contributor to health and wellbeing has been difficult for government authorities, healthcare providers, and federal sports authorities, because of many economical and medical barriers. Awareness and involvement of sports federations may help to reduce those barriers and fill this gap.Although it’s still often mistakenly considered a superhuman sport, triathlon brings together 3 sports disciplines frequently recommended for people wishing to begin regular physical activity, and thus seems to be an interesting choice as a sport for health for most people/patients. After recalling the national sport and health strategy 2019-2024 developed for Paris Olympics, we report here the four steps of the “Health Triathlon program” implemented by the French Triathlon Federation, to illustrate the main framework, the feasibility, first results and benefits for participants of this initiatives

Information Management Strategies in Manual Assembly

In the light of a rising number of product variants and increasing dynamics of product modifications in industries such as vehicle and machine construction, the use of complexity management strategies in manual assembly is essential. In this paper different strategies are presented. In the age of digitalization, the strategy of providing cognitive support to assembly workers is highly important, and is therefore described in more detail with the help of morphological boxes. These boxes will support practitioners to develop a company-specific strategy for information management in manual assembly

Biomechanical Response of the Lower Extremity to Running-Induced Acute Fatigue: A Systematic Review.

Objective: To investigate (i) typical protocols used in research on biomechanical response to running-induced fatigue, (ii) the effect of sport-induced acute fatigue on the biomechanics of running and functional tests, and (iii) the consistency of analyzed parameter trends across different protocols. Methods: Scopus, Web of Science, Pubmed, and IEEE databases were searched using terms identified with the Population, Interest and Context (PiCo) framework. Studies were screened following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and appraised using the methodological index for non-randomized studies MINORS scale. Only experimental studies with at least 10 participants, which evaluated fatigue during and immediately after the fatiguing run were included. Each study was summarized to record information about the protocol and parameter trends. Summary trends were computed for each parameter based on the results found in individual studies. Results: Of the 68 included studies, most were based on in-lab (77.9%) protocols, endpoint measurements (75%), stationary measurement systems (76.5%), and treadmill environment (54.4%) for running. From the 42 parameters identified in response to acute fatigue, flight time, contact time, knee flexion angle at initial contact, trunk flexion angle, peak tibial acceleration, CoP velocity during balance test showed an increasing behavior and cadence, vertical stiffness, knee extension force during MVC, maximum vertical ground reaction forces, and CMJ height showed a decreasing trend across different fatigue protocols. Conclusion: This review presents evidence that running-induced acute fatigue influences almost all the included biomechanical parameters, with crucial influence from the exercise intensity and the testing environment. Results indicate an important gap in literature caused by the lack of field studies with continuous measurement during outdoor running activities. To address this gap, we propose recommendations for the use of wearable inertial sensors

Reduction of Cognitive Load in Complex Assembly Systems

Product variety and short product life cycles are characteristic features of modern assembly systems. When variety gets very high, assembly processes usually become very complex, leading to time losses, human errors, and other negative impacts of system performance. In order to prevent such performance declines different informational assistance systems become part of manual assembly systems, offering additional instructions concerning handling and insertion. Otherwise, such systems can result in additional cognitive load rather than decreasing it. Using mobile physiological measures like heart rate variability (HRV) and eye movements just in time changes of overall cognitive load are detectable. As expected, these data indicate increases of mental workload when task demands are becoming more complex. Practical and theoretical concerns, limitations and chances will be discussed

CONSENSUS STATEMENT ON INTRA-ARTICULAR INJECTIONS OF PLATELET RICH PLASMA FOR THE MANAGEMENT OF KNEE OSTEOARTHRITIS

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