Publications by authors named "H R Petrosyan"

Article Synopsis
  • The K1 strain of an extremophile microorganism primarily uses aerobic metabolism, with some strains able to grow anaerobically depending on the carbon sources available.
  • Experiments showed that the strain's growth was affected by the concentration and pH of carbon sources, notably that high glucose concentrations hindered growth while other sugars did not.
  • The study discovered that K1's bioenergetic properties, including membrane potential and proton motive force, vary with different carbon sources and acidic conditions, revealing potential for biotechnological applications.
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Human and animal studies have demonstrated the mechanisms and benefits of aerobic exercise for both cardiovascular and neurovascular health. Aerobic exercise induces neuroplasticity and neurophysiologic reorganization of brain networks, improves cerebral blood flow, and increases whole-body VO2 (peak oxygen consumption). The effectiveness of a structured cardiac rehabilitation (CR) program is well established and a vital part of the continuum of care for people with cardiovascular disease.

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Stroke remains a top contributor to long-term disability in the United States and substantially limits a person's physical activity. Decreased cardiovascular capacity is a major contributing factor to activity limitations and is a significant health concern. Addressing the cardiovascular capacity of stroke survivors as part of poststroke management results in significant improvements in their endurance, functional recovery, and medical outcomes such as all-cause rehospitalization and mortality.

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Lack of information is cited as a source of distress for caregivers of patients with brain injury during the recovery process. This is a quality improvement project with the purpose of educating family members of brain injury patients about acute inpatient rehabilitation and providing a reliable source of information through the Model Systems Knowledge Translation Center Traumatic Brain Injury Model Systems Factsheets. The study was conducted in the brain injury unit of an acute inpatient rehabilitation facility and a total of 32 family members participated in the study.

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Chronic low back pain represents a significant societal problem leading to increased healthcare costs and quality of life. This study was designed to evaluate the feasibility and effectiveness of non-invasive spinal electromagnetic simulation (SEMS) to treat nonspecific chronic low back pain (CLBP). A single-site prospective study was conducted to evaluate SEMS in reducing pain and improving disability.

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