Exploring physical activity preferences and motivation in long-term cardiac prevention: An Austrian cross-sectional survey.

Cardiac rehabilitation (CR) patients often do not sustain physical activity (PA) behaviour in the long run, once they progress into a self-management stage of secondary prevention. This study aimed to explore former CR patients' PA preferences, determinants (i.e., influencing factors) and motivation for sustained PA engagement. We conducted a cross-sectional multi-centre survey using an original questionnaire based on prior qualitative interviews with cardiac patients. Five CR centres in Austria posted 500 questionnaires to former CR patients who had completed CR approximately three years prior, and 117 patients (23%) responded. Descriptive analysis was used to analyse closed-ended questions, and self-determination theory (SDT) was applied as a qualitative framework to analyse open-ended questions concerning motivation for PA engagement. Patients were generally physically active, but the majority (75.3%) did not fulfil the World Health Organisation's recommendations for aerobic PA and muscle strengthening. Most patients preferred being physically active outdoors (70%), engaging in aerobic-related (95%), individual and non-competitive exercises, with cycling (52%), walking (32%) and hiking (25%) among the most popular activities. Main determinants of PA were health, pain and motivation for 80%, 68%, 67% of patients, respectively. A subset of patients (77%) expanded on their motivations behind PA. According to SDT, most reasons (90%) were regulated by autonomous motivation (either extrinsically autonomously-regulated or intrinsic motivation) and stemmed mostly from health-related goals (e.g., fitness, general health, weight control), future quality-of-life aspirations (e.g., self-sufficiency in old age, presence for loved ones, preserving mobility) and enjoyment of PA. Patients' responses underscore the importance of promoting not only general PA, but also muscle strengthening training in CR interventions to maximise optimal health benefits. Our data further suggest that interventions which are aligned to patients' health goals and foster autonomous motivation may be particularly beneficial in increasing adherence to PA in the long-term.

Use and perceptions of digital technology for daily life, physical activity and health information among former cardiac rehabilitation patients in Austria: A cross-sectional survey.

Objective: Digital health technologies offer great potential to improve access and adherence to cardiovascular disease secondary prevention measures such as regular physical activity (PA). However, the use and perceptions of digital technology (DT) among cardiac rehabilitation (CR) patients are not well understood. The aim of this study was therefore to explore the use of DT in former CR patients' daily lives, for PA and for health information; and to gain insight into patient perceptions of DT for PA, including barriers, facilitators and requested features. Methods: A cross-sectional postal survey was conducted between May 2022 and January 2023. Five Austrian CR centres contacted 500 former patients who had completed a phase 2 CR programme from January 2019 onwards. One-hundred seventeen patients (mean [SD] age, 69 ± 10 years, 22% female) responded. Descriptive and thematic analyses were conducted for closed and open-ended questions, respectively. Results: Results indicated high DT usage for communication and informational aspects, and to a large extent also for PA and health information seeking. Main facilitators of DT use for PA were attributed to health and behavioural monitoring. Main barriers were lack of perceived need, lack of interest and poor usability. Most frequently requested features included pulse and blood pressure measurement, step count and compatibility to other devices. Conclusions: Patients generally used and perceived DT as beneficial in daily life and for secondary prevention purposes such as PA. The survey identified facilitators, barriers and feature requests, which may inform the design and implementation of digital health interventions for CR patients.

Oxygen availability in a HAPE-positive and a HAPE-negative woman before and during a visit to 3480 meters.

BACKGROUND: Testing the hypoxic ventilatory response (HVR) at low-altitude helps to detect those who do not hyperventilate appropriately in hypoxia but might not necessarily predict the HVR and the risk to develop acute mountain sickness (AMS) at high altitude. However, a low HVR seems to be particularly prevalent in individuals susceptible to high-altitude pulmonary edema (HAPE+). In this short communication, we assessed differences in physiological parameters in two comparable women before and 3 hours after exposure to 3,480 meters. One woman had a (clinically diagnosed) history of high-altitude pulmonary edema (HAPE+) while the other did well at previous exposures to high altitude (HAPE-). METHODS: Heart rate, blood pressure, ventilation, arterial blood gas variables, arterial haemoglobin saturation, haemoglobin concentration, arterial oxygen content and delta plasma volume were measured or calculated before and after arrival at high altitude. RESULTS: At high altitude, plasma volume decreased in the HAPE- woman which in turn increased haemoglobin concentration. Ventilation was elevated in the HAPE- but not in the HAPE + woman. Arterial oxygen content fell in the HAPE + while it was preserved in the HAPE- woman. This resulted from lower peripheral oxygen saturation (-35%), lower haemoglobin concentration (-12%) and lower arterial partial pressure of oxygen (-59%) in the HAPE+. CONCLUSION: Considerable haemoglobin desaturation and lack of haemoconcentration were characteristics of the HAPE + woman when exposed to high altitude, while the higher arterial oxygen content in the HAPE- woman was related to both haemoconcentration and hyperventilation (and associated haemoglobin saturation).

Efficacy of extended, comprehensive outpatient cardiac rehabilitation on cardiovascular risk factors: A nationwide registry.

AIM: Cardiac rehabilitation (CR) is a key component of the treatment of cardiac diseases. The Austrian outpatient CR model is unique, as it provides patients with an extended professionally supervised, multidisciplinary program of 4-6 weeks of phase II (OUT-II) and 6-12 months of phase III (OUT-III) CR. The aim of this analysis was to assess the efficacy of the Austrian outpatient CR model using a nationwide registry. METHODS: Data of all consecutive patients (N = 7560) who completed OUT-II and/or OUT-III between 1 January 2005 and 31 December 2015 were entered prospectively into a registry. OUT-III patients were analyzed separately according to whether the preceding phase II was performed as outpatient (OUT-II/OUT-III, N = 2403) or in-patient (IN-II/OUT-III, N = 2789). All patients underwent assessment of anthropometry, resting blood pressure, lipid profile, fasting blood glucose, exercise capacity, quality of life, anxiety and depression. RESULTS: During OUT-II, patients significantly improved their metabolic risk factor profile and increased exercise capacity by 14.3%. OUT-II/OUT-III patients achieved an additional increase in exercise capacity by 10%, further improvement in high-density lipoprotein (HDL) and stabilization of the remaining risk factors. IN-II/OUT-III patients increased their maximal exercise capacity by 18.4% and there was improvement in blood pressure, HDL, low-density lipoprotein and glucose levels. CONCLUSION: Extended, professionally supervised, multidisciplinary outpatient CR in a large nationwide registry of consecutive patients consistently improved maximal exercise capacity and relevant modifiable cardiovascular risk factors beyond effects seen after IN- or OUT-II alone.