Polly S. Montgomery

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Prediction of 6-minute walk performance in patients with peripheral artery disease

Xi Chen, Julie A. Stoner, Polly S. Montgomery, Ana I. Casanegra, more

Journal of Vascular Surgery > 2017 > 66 > 4 > 1202-1209

Peripheral artery disease (PAD) is a highly prevalent disease that impairs walking ability. Walking tests, such as the 6-minute walk test (6MWT) and 4-meter walk test, are commonly used to assess exercise endurance and ambulatory function over a short distance, respectively. The 6MWT performance is predictive of PAD severity and disease outcomes, but it is not feasible in many clinical settings because...

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Association between daily walking and antioxidant capacity in patients with symptomatic peripheral artery disease

Andrew W. Gardner, Polly S. Montgomery, Yan D. Zhao, Federico Silva-Palacios, more

Journal of Vascular Surgery > 2017 > 65 > 6 > 1762-1768

The primary aim of the study was to assess whether both the amount and pace of daily walking were associated with circulating antioxidant capacity in symptomatic patients with peripheral artery disease (PAD).Community-based walking was measured in 244 men and women who were limited by symptomatic PAD during a 1-week period in which they wore an ankle-mounted step activity monitor. Patients were further...

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Sedentary behavior is associated with impaired biomarkers in claudicants

Breno Q. Farah, Raphael M. Ritti-Dias, Polly S. Montgomery, Ana I. Casanegra, more

Journal of Vascular Surgery > 2016 > 63 > 3 > 657-663

Time spent in sedentary behavior has been associated with worse inflammation and cardiometabolic biomarkers in various populations. However, the association between time spent in sedentary behavior and biomarkers remains unknown in patients with intermittent claudication. The aim of the current study was to analyze the relationship between sedentary behavior and inflammatory and cardiometabolic biomarkers...

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Association between gait characteristics and endothelial oxidative stress and inflammation in patients with symptomatic peripheral artery disease

Andrew W. Gardner, Polly S. Montgomery, Ana I. Casanegra, Federico Silva-Palacios, more

AGE > 2016 > 38 > 3 > 1-9

The aim of the study was to determine whether gait characteristics were associated with endothelial cell inflammation, oxidative stress, and apoptosis and with circulating biomarkers of inflammation and antioxidant capacity in older patients with symptomatic peripheral artery disease (PAD). Gait measurements of 231 symptomatic men and women with PAD were assessed during a 4-m walk test. Patients were...

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Effect of cognitive status on exercise performance and quality of life in patients with symptomatic peripheral artery disease

Andrew W. Gardner, Shari R. Waldstein, Polly S. Montgomery, Yan D. Zhao

Journal of Vascular Surgery > 2016 > 63 > 1 > 98-104

We determined whether scores on a cognitive screening measure were associated with the primary outcome measure of peak walking time (PWT) and with secondary outcome measures related to mobility, community-based ambulation, health-related quality of life (QoL), and vascular function in patients with claudication and peripheral artery disease (PAD).Gross cognitive status of 246 PAD patients was assessed...

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Gender and racial differences in endothelial oxidative stress and inflammation in patients with symptomatic peripheral artery disease

Andrew W. Gardner, Donald E. Parker, Polly S. Montgomery, Danuta Sosnowska, more

Journal of Vascular Surgery > 2015 > 61 > 5 > 1249-1257

We compared (1) cellular reactive oxygen species (ROS) production, inflammation, and apoptosis of cultured endothelial cells treated with sera and (2) circulating inflammatory measures, antioxidant capacity, vascular biomarkers, and calf muscle hemoglobin oxygen saturation (StO ₂ ) in men and women with peripheral artery disease (PAD). A secondary aim was to compare exercise performance and...

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Diabetic women are poor responders to exercise rehabilitation in the treatment of claudication

Andrew W. Gardner, Donald E. Parker, Polly S. Montgomery, Steve M. Blevins

Journal of Vascular Surgery > 2014 > 59 > 4 > 1036-1043

It is not clear whether subgroups of patients with peripheral artery disease (PAD) and claudication respond more favorably to exercise rehabilitation than others. We determined whether sex and diabetes were factors associated with the response to exercise rehabilitation in patients with claudication.Eighty patients were randomized to home-based and supervised exercise programs, and 60 finished with...

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Calf muscle hemoglobin oxygen saturation in patients with peripheral artery disease who have different types of exertional leg pain

Andrew W. Gardner, Donald E. Parker, Polly S. Montgomery, Aman Khurana, more

Journal of Vascular Surgery > 2012 > 55 > 6 > 1654-1661

This study compared calf muscle hemoglobin oxygen saturation (Sto ₂ ) and exercise performance during standardized treadmill exercise in patients with peripheral artery disease (PAD) who describe different types of exertional leg pain and compared secondary outcomes consisting of daily ambulatory activity and exercise performance during a 6-minute walk test (6MWT). Leg pain symptoms were...

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Optimal exercise program length for patients with claudication

Andrew W. Gardner, Polly S. Montgomery, Donald E. Parker

Journal of Vascular Surgery > 2012 > 55 > 5 > 1346-1354

This prospective, randomized controlled clinical trial determined whether an optimal exercise program length exists to efficaciously change claudication onset time (COT) and peak walking time (PWT) in patients with peripheral artery disease and claudication. The study randomized 142 patients to supervised exercise (n = 106) or a usual care control group (n = 36), with 80 completing the exercise...

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Oxygen uptake before and after the onset of claudication during a 6-minute walk test

Andrew W. Gardner, Raphael M. Ritti-Dias, Julie A. Stoner, Polly S. Montgomery, more

Journal of Vascular Surgery > 2011 > 54 > 5 > 1366-1373

This study compared oxygen uptake before and after the onset of claudication in individuals with peripheral artery disease (PAD) during a 6-minute walk test, and identified predictors of the change in oxygen uptake after the onset of claudication pain.The study included 50 individuals with PAD. During a 6-minute walk test, 33 experienced claudication (pain group), and 17 were pain-free (pain-free...

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Gender differences in daily ambulatory activity patterns in patients with intermittent claudication

Andrew W. Gardner, Donald E. Parker, Polly S. Montgomery, Aman Khurana, more

Journal of Vascular Surgery > 2010 > 52 > 5 > 1204-1210

To compare the pattern of daily ambulatory activity in men and women with intermittent claudication, and to determine whether calf muscle hemoglobin oxygen saturation (StO ₂ ) is associated with daily ambulatory activity.Forty men and 41 women with peripheral arterial disease limited by intermittent claudication were assessed on their community-based ambulatory activity patterns for 1 week...

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Resting energy expenditure in patients with intermittent claudication and critical limb ischemia

Andrew W. Gardner, Polly S. Montgomery

Journal of Vascular Surgery > 2010 > 51 > 6 > 1436-1441

The primary aim of this study was to compare the resting energy expenditure of patients with intermittent claudication and critical limb ischemia. A secondary aim was to identify predictors of resting energy expenditure.One hundred patients limited by intermittent claudication and 40 patients with critical limb ischemia participated in this study. Patients were assessed on resting energy expenditure,...

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Gender and ethnic differences in arterial compliance in patients with intermittent claudication

Andrew W. Gardner, Polly S. Montgomery, Steve M. Blevins, Donald E. Parker

Journal of Vascular Surgery > 2010 > 51 > 3 > 610-615

To assess the gender and ethnic differences in arterial compliance in patients with intermittent claudication.A total of 114 patients participated, including 38 Caucasian men, 32 Caucasian women, 16 African American men, and 28 African American women. Patients were assessed on large artery elasticity index (LAEI), small artery elasticity index (SAEI), age, weight, body mass index, ankle-brachial index...

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Walking economy before and after the onset of claudication pain in patients with peripheral arterial disease

Andrew W. Gardner, Raphael M. Ritti-Dias, Julie A. Stoner, Polly S. Montgomery, more

Journal of Vascular Surgery > 2010 > 51 > 3 > 628-633

To determine the walking economy before and after the onset of claudication pain in patients with peripheral arterial disease (PAD), and to identify predictors of the change in walking economy following the onset of claudication pain.A total of 39 patients with PAD were studied, in which 29 experienced claudication (Pain group) during a constant load, walking economy treadmill test (speed = 2.0 mph,...

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Sex differences in calf muscle hemoglobin oxygen saturation in patients with intermittent claudication

Andrew W. Gardner, Donald E. Parker, Polly S. Montgomery, Steve M. Blevins, more

Journal of Vascular Surgery > 2009 > 50 > 1 > 77-82

We tested the hypotheses that women have greater impairment in calf muscle hemoglobin oxygen saturation (StO ₂ ) in response to exercise than men, and that the sex-related difference in calf muscle StO ₂ would partially explain the shorter claudication distances of women.The study comprised 27 men and 24 women with peripheral arterial disease limited by intermittent claudication. Patients...

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Resting energy expenditure in subjects with and without intermittent claudication

Andrew W. Gardner, Polly S. Montgomery

Metabolism > 2009 > 58 > 7 > 1008-1012

Subjects with peripheral arterial disease and intermittent claudication have ischemia of the lower extremities, but little is known how this influences resting energy expenditure. The objective of the study was to compare the resting energy expenditure of subjects with and without intermittent claudication. One hundred six subjects limited by intermittent claudication and 77 controls who did not have...

article

Association between daily ambulatory activity patterns and exercise performance in patients with intermittent claudication

Andrew W. Gardner, Polly S. Montgomery, Kristy J. Scott, Steve M. Blevins, more

Journal of Vascular Surgery > 2008 > 48 > 5 > 1238-1244

To determine the association between daily ambulatory activity patterns and exercise performance in patients with intermittent claudication.One hundred thirty-three patients limited by intermittent claudication participated in this study. Patients were assessed on their ambulatory activity patterns for 1 week with a small, lightweight step activity monitor attached to the ankle using elastic velcro...

article

Calf muscle hemoglobin oxygen saturation characteristics and exercise performance in patients with intermittent claudication

Andrew W. Gardner, Donald E. Parker, Nykita Webb, Polly S. Montgomery, more

Journal of Vascular Surgery > 2008 > 48 > 3 > 644-649

This study was conducted to determine the association between the characteristics of calf muscle hemoglobin oxygen saturation (StO ₂ ) and exercise performance in patients with intermittent claudication.The study comprised 39 patients with peripheral arterial disease limited by intermittent claudication. Patients were characterized on calf muscle StO ₂ before, during, and after a graded...

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The effect of metabolic syndrome components on exercise performance in patients with intermittent claudication

Andrew W. Gardner, Polly S. Montgomery

Journal of Vascular Surgery > 2008 > 47 > 6 > 1251-1258

To determine the effect of metabolic syndrome components on intermittent claudication, physical function, health-related quality of life, and peripheral circulation in patients with peripheral arterial disease (PAD), and to identify the metabolic syndrome components most predictive of each outcome measure.Patients limited by intermittent claudication with three (n = 48), four (n = 45), or five (n...

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Physical activity is a predictor of all-cause mortality in patients with intermittent claudication

Andrew W. Gardner, Polly S. Montgomery, Donald E. Parker

Journal of Vascular Surgery > 2008 > 47 > 1 > 117-122

We examined whether all-cause mortality was predicted by physical activity level in peripheral arterial disease (PAD) patients limited by intermittent claudication.This retrospective, natural history follow-up study determined survival status of each patient. Patients with stable symptoms of intermittent claudication were evaluated in the Geriatrics, Research, Education, and Clinical Center at the...

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Search results for: Polly S. Montgomery

Prediction of 6-minute walk performance in patients with peripheral artery disease

Association between daily walking and antioxidant capacity in patients with symptomatic peripheral artery disease

Sedentary behavior is associated with impaired biomarkers in claudicants

Association between gait characteristics and endothelial oxidative stress and inflammation in patients with symptomatic peripheral artery disease

Effect of cognitive status on exercise performance and quality of life in patients with symptomatic peripheral artery disease

Gender and racial differences in endothelial oxidative stress and inflammation in patients with symptomatic peripheral artery disease

Diabetic women are poor responders to exercise rehabilitation in the treatment of claudication

Calf muscle hemoglobin oxygen saturation in patients with peripheral artery disease who have different types of exertional leg pain

Optimal exercise program length for patients with claudication

Oxygen uptake before and after the onset of claudication during a 6-minute walk test

Gender differences in daily ambulatory activity patterns in patients with intermittent claudication

Resting energy expenditure in patients with intermittent claudication and critical limb ischemia

Gender and ethnic differences in arterial compliance in patients with intermittent claudication

Walking economy before and after the onset of claudication pain in patients with peripheral arterial disease

Sex differences in calf muscle hemoglobin oxygen saturation in patients with intermittent claudication

Resting energy expenditure in subjects with and without intermittent claudication

Association between daily ambulatory activity patterns and exercise performance in patients with intermittent claudication

Calf muscle hemoglobin oxygen saturation characteristics and exercise performance in patients with intermittent claudication

The effect of metabolic syndrome components on exercise performance in patients with intermittent claudication

Physical activity is a predictor of all-cause mortality in patients with intermittent claudication

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