A J Graybeal
Biographic Data
| ID | 68498 |
|---|---|
| NAME | A J Graybeal |
| GIVEN NAMES | A J |
| FAMILY NAME | Graybeal |
| SIGNATURE | GRAYBEAL A J |
| AFFILIATIONS | University of Southern Mississippi |
| ORCID | 0000-0003-4520-9230 |
| VERIFIED | Yes |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 4 |
| WORKS AS AUTHOR | 12 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2021 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Effects of a 12-week increased hip flexion gait exercise intervention in individuals with obesity and knee osteoarthritis
Introduction The novel increased hip flexion gait (HFgait) exercise modality involves specific neuromuscular and biomechanical characteristics that might be beneficial for individuals with knee osteoarthritis (OA). The current study examined the efficacy and feasibility of a 12-week HFgait exercise program in patients with obesity and symptomatic knee OA. Methods Double-arm crossover design with three timepoint measurements. Twelve participants (…
Clinical Thresholds for Visceral Adiposity Accumulation
Objectives This study aimed to prospectively identify visceral adipose tissue (VAT) accumulation thresholds in a cohort of sex‐, age‐, and BMI‐matched non‐Hispanic White and Black adults using a range of commonly employed whole‐body and abdominal‐specific adiposity measures associated with chronic disease risk. Methods A total of 344 non‐Hispanic White ( n = 172) and Black adults ( n = 172) matched for sex, age, and BMI completed anthropometric a…
Measurements of Abdominal Obesity are Associated with Metabolic Syndrome Severity Independent of Hypertensive Phenotype in White but not Black Young Adults
Near‐infrared reactance spectroscopy‐derived visceral adipose tissue for the assessment of metabolic syndrome in a multi‐ethnic sample of young adults
Objectives Visceral adipose tissue (VAT) is highly associated with metabolic syndrome (MetS), which is rapidly increasing in young adults. However, accessible VAT measurement methods are limited, restricting the use of VAT in early detection. This cross‐sectional study sought to determine if near‐infrared reactance spectroscopy (NIRS)‐derived VAT (VAT NIRS ) was associated with MetS in a multi‐ethnic sample of young adults. Methods A total of 107…
Exploring gait velocity as a predictor of cardiometabolic disease risk in young adults
Background The association between poor gait and functional movement ability and metabolic syndrome (MetS) has been well established in older adults. A continuous cardiometabolic risk score, MetS index , may more easily identify individuals at risk for cardiometabolic disease who do not yet meet the stringent criteria for a formal MetS diagnosis. Although the association between MetS and gait velocity is well established in older adults, no such …
Fat-free mass is associated with exercise pressor responses, but not cold pressor responses, in humans
Objective This study examined the contributions of fat mass (FM) and fat-free mass (FFM) to the magnitude of exercise pressor responses in humans. Methods The cumulative blood pressure responses (blood pressure index; BPI) to handgrip exercise (BPI hg ), post-exercise-circulatory-occlusion (BPI peco ), and cold-pressor activation (BPI cpt ) were collected from 67 individuals grouped by BMI (27.8 ± 7.3 kg/m 2 ), FFM index (FFMi, 29.1 ± 3.8 kg/m 2 …
Differences in Perceptual and Attitudinal Body Image Between White and African-American Adults Matched for Sex, Age, and Body Composition
Nutrient Adequacy in Endurance Athletes
Proper nutrition is critical for optimal performance in endurance athletes. However, it is unclear if endurance athletes are meeting all their energy and nutrient needs. We examined if endurance athletes are meeting their nutritional requirements and if this differed by sex. Ninety-five endurance athletes (n = 95; 50.5% men; 34.9 ± 12.9 y) participated in the study. Dietary intake was evaluated using the 24 h dietary recall method. Energy and nut…
Chronic and Postprandial Metabolic Responses to a Ketogenic Diet Compared to High-Carbohydrate and Habitual Diets in Trained Competitive Cyclists and Triathletes
Extreme carbohydrate deficits during a ketogenic diet (KD) may result in metabolic adaptations reflective of low energy availability; however, the manifestation of these adaptations outside of exercise have yet to be elucidated in cyclists and triathletes. The purpose of this study is to investigate the chronic and postprandial metabolic responses to a KD compared to a high-carbohydrate diet (HCD) and habitual diet (HD) in trained competitive cyc…
The Relationship Between Dietary Intake and Sleep Quality in Endurance Athletes
Many endurance athletes have poor sleep quality which may affect performance and health. It is unclear how dietary intake affects sleep quality among athletes. We examined if sleep quality in endurance athletes is associated with consumption of fruit, vegetables, whole grains, dairy milk, and caffeinated beverages. Two hundred thirty-four endurance athletes (39.5 ± 14.1 year) participated in a survey. Participants provided information on demograp…
Caffeine Supplementation Strategies Among Endurance Athletes
Caffeine is widely accepted as an endurance-performance enhancing supplement. Most scientific research studies use doses of 3-6 mg/kg of caffeine 60 min prior to exercise based on pharmacokinetics. It is not well understood whether endurance athletes employ similar supplementation strategies in practice. The purpose of this study was to investigate caffeine supplementation protocols among endurance athletes. A survey conducted on Qualtrics return…
Manipulation of fatty acid composition in a high-fat meal does not result in differential alterations in appetite or food intake in normal weight females
Measurements of Abdominal Obesity are Associated with Metabolic Syndrome Severity Independent of Hypertensive Phenotype in White but not Black Young Adults
The Relationship Between Dietary Intake and Sleep Quality in Endurance Athletes
Many endurance athletes have poor sleep quality which may affect performance and health. It is unclear how dietary intake affects sleep quality among athletes. We examined if sleep quality in endurance athletes is associated with consumption of fruit, vegetables, whole grains, dairy milk, and caffeinated beverages. Two hundred thirty-four endurance athletes (39.5 ± 14.1 year) participated in a survey. Participants provided information on demograp…
Caffeine Supplementation Strategies Among Endurance Athletes
Caffeine is widely accepted as an endurance-performance enhancing supplement. Most scientific research studies use doses of 3-6 mg/kg of caffeine 60 min prior to exercise based on pharmacokinetics. It is not well understood whether endurance athletes employ similar supplementation strategies in practice. The purpose of this study was to investigate caffeine supplementation protocols among endurance athletes. A survey conducted on Qualtrics return…
Manipulation of fatty acid composition in a high-fat meal does not result in differential alterations in appetite or food intake in normal weight females
The Relationship Between Dietary Intake and Sleep Quality in Endurance Athletes
Many endurance athletes have poor sleep quality which may affect performance and health. It is unclear how dietary intake affects sleep quality among athletes. We examined if sleep quality in endurance athletes is associated with consumption of fruit, vegetables, whole grains, dairy milk, and caffeinated beverages. Two hundred thirty-four endurance athletes (39.5 ± 14.1 year) participated in a survey. Participants provided information on demograp…
Caffeine Supplementation Strategies Among Endurance Athletes
Caffeine is widely accepted as an endurance-performance enhancing supplement. Most scientific research studies use doses of 3-6 mg/kg of caffeine 60 min prior to exercise based on pharmacokinetics. It is not well understood whether endurance athletes employ similar supplementation strategies in practice. The purpose of this study was to investigate caffeine supplementation protocols among endurance athletes. A survey conducted on Qualtrics return…
Nutrient Adequacy in Endurance Athletes
Proper nutrition is critical for optimal performance in endurance athletes. However, it is unclear if endurance athletes are meeting all their energy and nutrient needs. We examined if endurance athletes are meeting their nutritional requirements and if this differed by sex. Ninety-five endurance athletes (n = 95; 50.5% men; 34.9 ± 12.9 y) participated in the study. Dietary intake was evaluated using the 24 h dietary recall method. Energy and nut…
Chronic and Postprandial Metabolic Responses to a Ketogenic Diet Compared to High-Carbohydrate and Habitual Diets in Trained Competitive Cyclists and Triathletes
Extreme carbohydrate deficits during a ketogenic diet (KD) may result in metabolic adaptations reflective of low energy availability; however, the manifestation of these adaptations outside of exercise have yet to be elucidated in cyclists and triathletes. The purpose of this study is to investigate the chronic and postprandial metabolic responses to a KD compared to a high-carbohydrate diet (HCD) and habitual diet (HD) in trained competitive cyc…
Near‐infrared reactance spectroscopy‐derived visceral adipose tissue for the assessment of metabolic syndrome in a multi‐ethnic sample of young adults
Objectives Visceral adipose tissue (VAT) is highly associated with metabolic syndrome (MetS), which is rapidly increasing in young adults. However, accessible VAT measurement methods are limited, restricting the use of VAT in early detection. This cross‐sectional study sought to determine if near‐infrared reactance spectroscopy (NIRS)‐derived VAT (VAT NIRS ) was associated with MetS in a multi‐ethnic sample of young adults. Methods A total of 107…
Exploring gait velocity as a predictor of cardiometabolic disease risk in young adults
Background The association between poor gait and functional movement ability and metabolic syndrome (MetS) has been well established in older adults. A continuous cardiometabolic risk score, MetS index , may more easily identify individuals at risk for cardiometabolic disease who do not yet meet the stringent criteria for a formal MetS diagnosis. Although the association between MetS and gait velocity is well established in older adults, no such …
Fat-free mass is associated with exercise pressor responses, but not cold pressor responses, in humans
Objective This study examined the contributions of fat mass (FM) and fat-free mass (FFM) to the magnitude of exercise pressor responses in humans. Methods The cumulative blood pressure responses (blood pressure index; BPI) to handgrip exercise (BPI hg ), post-exercise-circulatory-occlusion (BPI peco ), and cold-pressor activation (BPI cpt ) were collected from 67 individuals grouped by BMI (27.8 ± 7.3 kg/m 2 ), FFM index (FFMi, 29.1 ± 3.8 kg/m 2 …
Differences in Perceptual and Attitudinal Body Image Between White and African-American Adults Matched for Sex, Age, and Body Composition
Clinical Thresholds for Visceral Adiposity Accumulation
Objectives This study aimed to prospectively identify visceral adipose tissue (VAT) accumulation thresholds in a cohort of sex‐, age‐, and BMI‐matched non‐Hispanic White and Black adults using a range of commonly employed whole‐body and abdominal‐specific adiposity measures associated with chronic disease risk. Methods A total of 344 non‐Hispanic White ( n = 172) and Black adults ( n = 172) matched for sex, age, and BMI completed anthropometric a…
Measurements of Abdominal Obesity are Associated with Metabolic Syndrome Severity Independent of Hypertensive Phenotype in White but not Black Young Adults
Effects of a 12-week increased hip flexion gait exercise intervention in individuals with obesity and knee osteoarthritis
Introduction The novel increased hip flexion gait (HFgait) exercise modality involves specific neuromuscular and biomechanical characteristics that might be beneficial for individuals with knee osteoarthritis (OA). The current study examined the efficacy and feasibility of a 12-week HFgait exercise program in patients with obesity and symptomatic knee OA. Methods Double-arm crossover design with three timepoint measurements. Twelve participants (…
Medicine (10 works) · Internal Medicine (8 works) · Endocrinology (5 works) · Body mass index (4 works) · Obesity (4 works) · Physical therapy (4 works) · Psychology (4 works) · Adipose Tissue and Metabolism (3 works) · Anthropometry (3 works) · Athletes (3 works)