Secure Sharing of mHealth Data Streams through Cryptographically-Enforced Access Control.

Owners of mobile-health apps and devices often want to share their mHealth data with others, such as physicians, therapists, coaches, and caregivers. For privacy reasons, however, they typically want to share a limited subset of their information with each recipient according to their preferences. In this paper, we introduce ShareHealth, a scalable, usable, and practical system that allows mHealth-data owners to specify access-control policies and to cryptographically enforce those policies so that only parties with the proper corresponding permissions are able to decrypt data.

Use of Amulet in behavioral change for geriatric obesity management.

Background: Obesity in older adults is a significant public health concern. Weight-loss interventions are known to improve physical function but risk the development of sarcopenia. Mobile health devices have the potential to augment existing interventions and, if designed accordingly, could improve one's physical activity and strength in routine physical activity interventions.

Detection and Monitoring of Repetitions Using an mHealth-Enabled Resistance Band.

Sarcopenia is defined as an age-related loss of muscle mass and strength which impairs physical function leading to disability and frailty. Resistance exercises are effective treatments for sarcopenia and are critical in mitigating weight-loss induced sarcopenia in older adults attempting to lose weight. Yet, adherence to home-based regimens, which is a cornerstone to lifestyle therapies, is poor and cannot be ascertained by clinicians as no objective methods exist to determine patient compliance outside of a supervised setting.

Usability Evaluation for the Amulet Wearable Device in Rural Older Adults with Obesity.

Mobile health (mHealth) interventions hold the promise of augmenting existing health promotion interventions. Older adults present unique challenges in advancing new models of health promotion using technology including sensory limitations and less experience with mHealth, underscoring the need for specialized usability testing. We use an open-source mHealth device as a case example for its integration in a newly designed health services intervention.

: Wearable App for Monitoring and Encouraging Physical Activity among Older Adults.

The ability to monitor a person's level of daily activity can inform self-management of physical activity and assist in augmenting behavioral interventions. For older adults, the importance of regular physical activity is critical to reduce the risk of long-term disability. In this work, we present , an application on the Amulet wrist-worn device that monitors in real time older adults' daily activity levels (low, moderate and vigorous), which we categorized using metabolic equivalents (METs).

Thrombolytic Therapy in the Current ERA: Myocardial Infarction and Beyond.

Thrombolytic therapy kick-started the era of modern cardiology but in the last few decades it has been largely supplanted by primary percutaneous coronary intervention (PCI) as the go-to treatment for acute myocardial infarction. However, these agents remain important for vast populations without access to primary PCI and acute ischemic stroke. More innovative uses have recently come up for the treatment of a variety of conditions.

Outcome of Patients Discharged From a Heart Failure Disease Management Program following Their Clinical and Echocardiographic Recovery.

Objectives: Heart failure (HF) is associated with high mortality and frequent hospitalizations. Disease management programs (DMPs) have a favorable impact on patients with HF. No data exist regarding the outcomes of patients discharged from such a program.

Cardiac memory during rather than after termination of left bundle branch block.

An 83-year-old woman with chronic left bundle branch block and remote history of pacemaker implantation for intermittent AV block was hospitalized for fatigue and leg swelling. She had no cardiac complaints. Routine 12-lead electrocardiogram showed sinus rhythm with left bundle branch block.

Emergence and resolution of the electrocardiographic spiked helmet sign in acute noncardiac conditions.

Patients with acute abdominal or acute thoracic events occasionally develop a curious electrocardiographic ST-segment elevation, where the upward shift of the baseline starts before the onset of the QRS complex. The shape of the complexes resembles a German military spiked helmet. It has been previously postulated that the “spiked helmet” sign is the result of an acute rise in intraabdominal or intrathoracic pressure causing pulsatile epidermal stretch that is in concert with the cardiac cycle.