Publications by authors named "Reuben Howden"

Article Synopsis
  • * Involving 25 Division I female college athletes, the research found that 60% were at moderate risk and 8% at high risk for the triad, highlighting a significant prevalence of this issue in this population.
  • * There was a notable correlation between maladaptive perfectionism (like concerns over mistakes) and triad risk, implying that perfectionistic traits can contribute to higher risks, but those with positive perfectionism did not show the same risk levels.
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Purpose: Patients with alpha-1 antitrypsin deficiency (AATD) often experience substantial delays from the onset of symptoms to a diagnosis. We explored the impact of delayed diagnosis of AATD on healthcare costs and utilization by assessing costs/utilization before and after diagnosis.

Methods: Retrospective claims data was used to conduct a longitudinal analysis of a cohort of patients with follow-up over four years in a commercial claims database was conducted.

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Article Synopsis
  • - Hypertension is a major risk factor for heart disease and early death, with global health efforts focusing on lifestyle changes, particularly exercise, to manage it.
  • - While traditional aerobic and resistance exercises are commonly recommended, isometric exercise training (IET) has shown even better results in lowering blood pressure, but is not widely used in clinical settings.
  • - The review discusses IET's effectiveness, how to prescribe it, the quality of supporting research, its physiological benefits, and suggests future research directions to enhance its use in blood pressure management.
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Despite the reported association between diurnal variations in ambulatory blood pressure (BP) and elevated cardiovascular disease risk, little is known regarding the effects of isometric resistance training (IRT), a practical BP-lowering intervention, on ambulatory BP and morning BP surge (MBPS). Thus, we investigated whether (i) IRT causes reductions in ambulatory BP and MBPS, in young normotensives, and (ii) if there are any sex differences in these changes. Twenty normotensive individuals (mean 24-h SBP = 121 ± 7, DBP = 67 ± 6 mmHg) undertook 10-weeks of bilateral-leg IRT (4 × 2-min/2-min rest, at 20% maximum voluntary contraction (MVC) 3 days/week).

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Isometric exercise training (IET) is an effective method for reducing resting blood pressure (BP). To date, no research studies have been conducted using multiple exercises within an IET intervention. Previous research has suggested that varied exercise programmes may have a positive effect on adherence.

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Introduction: Alpha-1 antitrypsin deficiency (AATD) is often not identified in patients with chronic obstructive pulmonary disease (COPD) until advanced stages of disease, despite the availability of genetic testing. While clinical practice guidelines provide recommendations on patients who should be tested, more refined algorithms are needed to identify COPD patients who are likely candidates for AATD testing and to prevent delays in diagnosis and treatment. The objective of this study was to identify comorbid associations with AATD among patients diagnosed with COPD in the United States.

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Purpose: The aim of the present study was to assess both the credibility and strength of evidence arising from systematic reviews with meta-analyses of observational studies on handgrip strength and health outcomes.

Methods: An umbrella review of systematic reviews with meta-analyses of observational studies was conducted. We assessed meta-analyses of observational studies based on random-effect summary effect sizes and their p values, 95% prediction intervals, heterogeneity, small-study effects, and excess significance.

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Tendinopathy risk increases with menopause. The phytoestrogen genistein prevents collagen loss during estrogen deficiency (ovariectomy [OVX]). The influence of genistein on tendon function and extracellular matrix (ECM) regulation is not well known.

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Background: Primary immune-deficiency disease (PIDD) is a rare, debilitating disease of the immune system that predisposes the affected individual to infection, autoimmune conditions, and neoplasm. A major component of the cost of treating PIDD is the high price of immunoglobulin drugs, which can be administered via an intravenous (IV) or subcutaneous (SC) route.

Objective: To compare real-world costs for patients with PIDD who are receiving IV immunoglobulin (IVIG) or SC immunoglobulin (SCIG) treatment, from a US payer perspective, using a large claims database.

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Purpose: Isometric handgrip (IHG) training lowers systolic and diastolic blood pressure (SBP and DBP, respectively), but the efficacy of IHG training in cardiopulmonary rehabilitation patients is unknown. The purpose of this study was to determine if IHG decreases blood pressure in cardiopulmonary rehabilitation patients.

Methods: Cardiopulmonary rehabilitation program participants (n = 11; 50-80 yr old) were randomized to IHG (n = 6) or control (CON; no treatment; n = 5) groups.

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Hypertension is the leading risk factor for global mortality. Isometric resistance exercise training reduces blood pressure (BP). However, the protocols used are often limited by cost/immobility and the use of rigid exercise modalities.

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New recommendations for hypertension (HTN) diagnosis and treatment highlight the role of self-care activities in managing blood pressure (BP). This cross-sectional study investigated the predictive validity of the Hypertension Self-Care Activity Level Effects (H-SCALE) measure and examined the relative and cumulative effects of HTN self-care adherence on BP. We pooled baseline data from three studies ( = 79), resulting in a gender and racially balanced sample.

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We investigated the impact of preexisting COPD and its subtypes, chronic bronchitis and emphysema, on overall survival among Medicare enrollees diagnosed with non-small-cell lung cancer (NSCLC). Using SEER-Medicare data, we included patients ≥66 years of age diagnosed with NSCLC at any disease stage between 2006 and 2010 and continuously enrolled in Medicare Parts A and B in the 12 months prior to diagnosis. Preexisting COPD in patients with NSCLC were identified using ICD-9 codes.

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Background: Previous meta-analyses based on aggregate group-level data report antihypertensive effects of isometric resistance training (IRT). However, individual participant data meta-analyses provide more robust effect size estimates and permit examination of demographic and clinical variables on IRT effectiveness.

Methods: We conducted a systematic search and individual participant data (IPD) analysis, using both a one-step and two-step approach, of controlled trials investigating at least 3 weeks of IRT on resting systolic, diastolic and mean arterial blood pressure.

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Isometric exercise training (IET)-induced reductions in resting blood pressure (RBP) have been achieved in laboratory environments, but data in support of IET outside the laboratory are scarce. The aim of this study was to compare 12 weeks of home-based (HOM) IET with laboratory-based, face-to-face (LAB) IET in hypertensive adults. Twenty-two hypertensive participants (24-60 years) were randomized to three conditions: HOM, LAB, or control (CON).

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Aim: To estimate the healthcare utilization and costs in elderly lung cancer patients with and without pre-existing chronic obstructive pulmonary disease (COPD).

Methods: Using Surveillance, Epidemiology and End Results (SEER)-Medicare data, this study identified patients with lung cancer between 2006-2010, at least 66 years of age, and continuously enrolled in Medicare Parts A and B in the 12 months prior to cancer diagnosis. The diagnosis of pre-existing COPD in lung cancer patients was identified using ICD-9 codes.

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Non-cystic fibrosis bronchiectasis (NCFBE) is a rare, chronic lung disease characterized by bronchial inflammation and permanent airway dilation. Chronic infections with have been linked to higher morbidity and mortality. To understand the impact of in NCFBE on health care costs and burden, we assessed healthcare costs and utilization before and after diagnosis.

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Little is known about severe chronic obstructive pulmonary disease (COPD) exacerbations among patients with Alpha-1 Antitrypsin Deficiency (AATD). We assessed inpatients with AATD and COPD among a sample of COPD inpatients to ascertain demographic, clinical and economic differences in the course of disease and treatment. Using data from the 2009 Nationwide Inpatient Sample (NIS), we identified COPD (ICD-9-CM: 491.

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Diabetes is a major risk factor for tendinopathy, and tendon abnormalities are common in diabetic patients. The purpose of the present study was to evaluate the effect of streptozotocin (60 mg/kg)-induced diabetes and insulin therapy on tendon mechanical and cellular properties. Sprague-Dawley rats (n = 40) were divided into the following four groups: nondiabetic (control), 1 wk of diabetes (acute), 10 wk of diabetes (chronic), and 10 wk of diabetes with insulin treatment (insulin).

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Purpose: The purpose of this study was twofold: (1) to investigate the effect of 4 weeks of bilateral-leg isometric exercise training on the immediate isometric post-exercise cardiovascular responses, and (2) to ascertain whether any changes in immediate post-exercise cardiovascular responses may be associated with training-induced adaptations in resting blood pressure.

Methods: Thirteen normotensive males completed both isometric exercise training (IET) and control conditions, which were separated by 6 weeks. Participants performed a total of twelve training sessions; 4 × 2-min bilateral-leg isometric exercise bouts separated by 3-min rest periods, 3 days week(-1).

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To reduce resting blood pressure, a minimum isometric exercise training (IET) intensity has been suggested, but this is not known for short-term IET programmes. We therefore compared the effects of moderate- and low-intensity IET programmes on resting blood pressure. Forty normotensive participants (22.

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Canonical Wnt signaling is important in skeletal muscle repair but has not been well characterized in response to physiological stimuli. The objective of this study was to assess the effect of downhill running (DHR) on components of Wnt signaling. Young, male C57BL/J6 mice were exposed to DHR.

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Nrf2 protects the lung from adverse responses to oxidants, including 100% oxygen (hyperoxia) and airborne pollutants like particulate matter (PM) exposure, but the role of Nrf2 on heart rate (HR) and heart rate variability (HRV) responses is not known. We hypothesized that genetic disruption of Nrf2 would exacerbate murine HR and HRV responses to severe hyperoxia or moderate PM exposures. Nrf2(-/-) and Nrf2(+/+) mice were instrumented for continuous ECG recording to calculate HR and HRV (low frequency (LF), high frequency (HF), and total power (TP)).

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