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Full-Text Articles in Physiology
Changes In Fitness-Fatness Index Following A Personalized, Community-Based Exercise Program In Physically Inactive Adults: A Randomised Controlled Trial, Abbey M. Jones, Lance C. Dalleck, Ryan M. Weatherwax, Joyce S. Ramos
Changes In Fitness-Fatness Index Following A Personalized, Community-Based Exercise Program In Physically Inactive Adults: A Randomised Controlled Trial, Abbey M. Jones, Lance C. Dalleck, Ryan M. Weatherwax, Joyce S. Ramos
International Journal of Exercise Science
International Journal of Exercise Science 15(4): 1418-1429, 2022. Fitness-fatness index (FFI) is used to identify those at high risk of developing type 2 diabetes and cardiovascular events. It is measured as the ratio between an individual’s cardiorespiratory fitness (CRF) and waist-to-height ratio. Studies suggest that CRF and waist-to-height ratio are modifiable and can be improved by exercise. However, there is limited evidence surrounding a personalized approach to exercise prescription. This study investigated the impact of a 12-week personalized exercise program on FFI among sedentary individuals. It was hypothesized that the intervention would be effective in improving FFI in this cohort. …
Post Exercise Hypotension Following Concurrent Exercise: Does Order Of Exercise Modality Matter?, Whitley J. Stone, Mark A. Schafer, Scott W. Arnett, Scott Lyons
Post Exercise Hypotension Following Concurrent Exercise: Does Order Of Exercise Modality Matter?, Whitley J. Stone, Mark A. Schafer, Scott W. Arnett, Scott Lyons
International Journal of Exercise Science
International Journal of Exercise Science 13(2): 36-48, 2020. Cardiovascular (CV) and resistance training (RT) can moderate negative effects of aging, disease, and inactivity. Post-exercise hypotension (PEH) has been used as a non-pharmacological means to control and reduce BP. Few have evaluated PEH response following a bout of exercise combining CV and RT, whether or not there is an order effect, or if PEH continues when activities of daily living (ADLs) are resumed. Participants (N= 10) completed a non-exercise control, a graded exercise test (GXT), and two concurrent sessions (CVRT and RTCV). Each session was followed by a 60-minute …
Early Timeline Of Lean Tissue Mass And Strength Improvements In Trained Men Following A High Volume/Frequency Resistance Training Program, Michael H. Thomas, Robert H. Ferguson, Steve P. Burns, Natalie B. Allen
Early Timeline Of Lean Tissue Mass And Strength Improvements In Trained Men Following A High Volume/Frequency Resistance Training Program, Michael H. Thomas, Robert H. Ferguson, Steve P. Burns, Natalie B. Allen
International Journal of Exercise Science
International Journal of Exercise Science 12(4): 1094-1109, 2019. The purpose of this study was to determine the early timeline effect of a systemic high volume/frequency resistance training intervention on lean tissue mass and strength in trained men. Twenty-two healthy resistance trained men, age (32.29 ± 9.75 years), training age (9.40 ± 6.18 years) were placed on a 4-week resistance training (RT) intervention with lean mass and strength assessed pre, mid, and post intervention. RT consisted of 6 exercises: flat smith chest press, pull ups, triceps pushdowns, dumbbell bicep curls, leg press or walking lunges, and standing calf raises, completing 5 …
Exercise Is Medicine®: Knowledge And Awareness Among Exercise Science And Medical School Students, Rachel Mealy, Laura Richardson, Brian Miller, Melissa Smith, Judith A. Juvancic-Heltzel
Exercise Is Medicine®: Knowledge And Awareness Among Exercise Science And Medical School Students, Rachel Mealy, Laura Richardson, Brian Miller, Melissa Smith, Judith A. Juvancic-Heltzel
International Journal of Exercise Science
International Journal of Exercise Science 12(3): 505-514, 2019. The purpose of this exploratory study was twofold: to determine whether exercise science and medical students are aware of the Exercise is Medicine® (EIM®) program and to construct a tool that would permit assessment of EIM® variables with students enrolled in both programs. The study consisted of a quantitative, cross-sectional design, using a self-report electronic questionnaire. An Exploratory Factor Analysis (EFA) using principal component analysis extraction method with Varimax factor rotation was employed to validate the survey instrument based on the expected constructs, which posited five (5) contending …
Development Of The Physical Activity Tracking Preference Questionnaire, Emily Fu, Marney A. White, Jaclyn M. W. Hughto, Bella Steiner, Erik Willis
Development Of The Physical Activity Tracking Preference Questionnaire, Emily Fu, Marney A. White, Jaclyn M. W. Hughto, Bella Steiner, Erik Willis
International Journal of Exercise Science
International Journal of Exercise Science 12(5): 297-309, 2019. The present study aims to develop the Physical Activity Tracking Preference Questionnaire (PATPQ), a measure of unit (distance, steps, calories, minutes) preference for tracking physical activity. The PATPQ was developed in two phases. During Phase One, the initial PATPQ was created (24 items), was assessed by an expert panel for face validity, and tested in 557 adults. Results were used to revise and modify the PATPQ. In Phase Two, the item pool was expanded and tested in 374 adults. Kuder‐Richardson Formula 20 scores for internal consistency and interclass correlations for test-retest reliability …
Maximal Lactate Steady State And Lactate Thresholds In The Cross-Country Skiing Sub-Technique Double Poling, Johan Jakobsson, Christer Malm
Maximal Lactate Steady State And Lactate Thresholds In The Cross-Country Skiing Sub-Technique Double Poling, Johan Jakobsson, Christer Malm
International Journal of Exercise Science
International Journal of Exercise Science 12(2): 57-68, 2019. The response of blood lactate concentration (BLC) to exercise is a commonly used approach to set training intensities and to determine the anaerobic threshold, which are important in evaluation of endurance exercise performance. The maximal lactate steady state (MLSS) is defined as the highest workload or BLC that can be maintained without continual lactate accumulation over time. The aim of this study was to investigate MLSS in the cross-country skiing sub-technique double poling and to assess the validity of a fixed blood lactate threshold (OBLAand the 45° tangent of the lactate curve). …
Characterizing The Aerobic And Anaerobic Energy Costs Of Polynesian Dances, Wei Zhu, David E. Lankford, Joel Reece, Daniel P. Heil
Characterizing The Aerobic And Anaerobic Energy Costs Of Polynesian Dances, Wei Zhu, David E. Lankford, Joel Reece, Daniel P. Heil
International Journal of Exercise Science
International Journal of Exercise Science 11(4): 1156-1172, 2018. This study characterized both aerobic and anaerobic energy expenditure (EE) for several Polynesian dances in a group of experienced professional Polynesian dancers. Thirteen men and 17 women were tested using indirect calorimetry to assess aerobic EE (and converted to METs), and fingertip blood lactate to estimate anaerobic EE, during both resting and dancing activities. Total EE was then computed as the sum of both aerobic and anaerobic activity energy expenditure (AEE, or EE above resting). One sample t-tests compared mean MET values for each type of dance to the 3-MET and 6-MET …
The Effect Of Stance Width And Anthropometrics On Joint Range Of Motion In The Lower Extremities During A Back Squat, Eric Demers, Jonathan Pendenza, Valentin Radevich, Richard Preuss
The Effect Of Stance Width And Anthropometrics On Joint Range Of Motion In The Lower Extremities During A Back Squat, Eric Demers, Jonathan Pendenza, Valentin Radevich, Richard Preuss
International Journal of Exercise Science
International Journal of Exercise Science 11(1): 764-775, 2018. The purpose of this study was to assess whether changing the stance width has an effect on the range of motion of hip flexion, knee flexion, and ankle dorsiflexion during an unloaded back squat, and whether these joint movements are affected by anthropometric differences. Thirty-two healthy, young adults performed unloaded back squats at three different stance widths, normalized to pelvic width. Joint angles were assessed using electromagnetic motion capture sensors on the sacrum, and thigh, shank and foot of the dominant leg. ANOVA comparison of joint angles for the three stance widths, …
A Prospective Study Comparing Distance-Based Vs. Time-Based Exercise Prescriptions Of Walking And Running In Previously Sedentary Overweight Adults, Cody E. Morris, John C. Garner Iii, Scott G. Owens, Melinda W. Valliant, Hunter Debusk, Mark Loftin
A Prospective Study Comparing Distance-Based Vs. Time-Based Exercise Prescriptions Of Walking And Running In Previously Sedentary Overweight Adults, Cody E. Morris, John C. Garner Iii, Scott G. Owens, Melinda W. Valliant, Hunter Debusk, Mark Loftin
International Journal of Exercise Science
International Journal of Exercise Science 10(5): 782-798, 2017. Prior work has reported that the declines observed in body mass index (BMI) and circumference measurements in their cross-sectional data were twice as large when calculated from distance energy expenditure estimations compared to energy expenditure estimations based on time and intensity. The primary purpose of this study was to compare walking/running for distance to walking/running for time as part of an exercise intervention. This study followed a between-subjects, repeated measures design. Fifteen overweight, but otherwise healthy participants completed the study. The time-based group walked/ran for self-reported time while the distance-based group walked/ran …
Adherence To Exercise Prescription And Improvements In The Clinical And Vascular Health Of African Americans, Dianne Babbitt
Adherence To Exercise Prescription And Improvements In The Clinical And Vascular Health Of African Americans, Dianne Babbitt
International Journal of Exercise Science
International Journal of Exercise Science 10(2): 246-257, 2017. Improvements in indices of vascular health and endothelial function have been inversely associated with hypertension, a risk factor for cardiovascular disease (e.g., myocardial infarction, stroke, and heart failure), renal failure, and mortality. Aerobic exercise training (AEXT) has been positively associated with improvements in clinical health values, as well as vascular health biomarkers, and endothelial function. The purpose of this study was to evaluate whether measures of exercise adherence were related to clinical outcome measures and indices of vascular health subsequent to a 6-month AEXT intervention in a middle-to-older aged African American cohort. …
Increasing Lean Mass And Strength: A Comparison Of High Frequency Strength Training To Low Frequency Strength Training, Michael Thomas, Steve Burns
Increasing Lean Mass And Strength: A Comparison Of High Frequency Strength Training To Low Frequency Strength Training, Michael Thomas, Steve Burns
International Journal of Exercise Science
International Journal of Exercise Science 9(2): 159-167, 2016. The purpose of this study was to determine the effect strength training frequency has on improvements in lean mass and strength. Participants were 7 women and 12 men, age ( = 34.64 years ± 6.91 years), with strength training experience, training age ( = 51.16 months ± 39.02 months). Participants were assigned to one of two groups to equal baseline group demographics. High frequency training group (HFT) trained each muscle group as the agonist, 3 times per week, exercising with 3 sets per muscle group per session (3 total body workouts). Low …
Actual Versus Predicted Cardiovascular Demands In Submaximal Cycle Ergometer Testing, Amanda M. Hoehn, Megan J. Mullenbach, Charles J. Fountaine
Actual Versus Predicted Cardiovascular Demands In Submaximal Cycle Ergometer Testing, Amanda M. Hoehn, Megan J. Mullenbach, Charles J. Fountaine
International Journal of Exercise Science
International Journal of Exercise Science 8(1) : 4-10, 2015. The Astrand-Rhyming cycle ergometer test (ARCET) is a commonly administered submaximal test for estimating aerobic capacity. Whereas typically utilized in clinical populations, the validity of the ARCET to predict VO2max in a non-clinical population, especially female, is less clear. Therefore, the purpose of this study was to determine the accuracy of the ARCET in a sample of healthy and physically active college students. Subjects (13 females, 10 males) performed a maximal cycle ergometer test to volitional exhaustion to determine VO2max. At least 48 hours later, subjects performed the …
The Reduction Of Metabolic Cost While Using Handrail Support During Inclined Treadmill Walking Is Dependent On The Handrail-Use Instruction, Cory Hofmann, Connor Dougherty, Hagop Abkarian, Michele Fox, Paul Juris
The Reduction Of Metabolic Cost While Using Handrail Support During Inclined Treadmill Walking Is Dependent On The Handrail-Use Instruction, Cory Hofmann, Connor Dougherty, Hagop Abkarian, Michele Fox, Paul Juris
International Journal of Exercise Science
International Journal of Exercise Science 7(4) : 339-345, 2014. Inclined treadmill walking is a commonly performed activity to increase cardiovascular health. Handrail support on a treadmill provides an individual the opportunity to change their posture with respect to the walking surface. Differences in metabolic cost during inclined walking due to postural changes with handrail use are unknown. To test the hypothesis that metabolic cost will differ depending on how handrail support is used, respiratory gas analysis was performed during inclined walking in 13 healthy subjects. Energy expenditure was quantified while each subject walked in four conditions: 5% incline unsupported, 10% …
Vo2 Reserve Vs. Heart Rate Reserve During Moderate Intensity Treadmill Exercise, Tanner J. Solheim, Brad G. Keller, Charles J. Fountaine
Vo2 Reserve Vs. Heart Rate Reserve During Moderate Intensity Treadmill Exercise, Tanner J. Solheim, Brad G. Keller, Charles J. Fountaine
International Journal of Exercise Science
International Journal of Exercise Science 7(4) : 311-317, 2014. VO2 and heart rate (HR) are widely used when determining appropriate training intensities for clinical, healthy, and athletic populations. It has been shown that if the % reserve (%R) is used, rather than % of max, HR and VO2 can be used interchangeably to accurately prescribe exercise intensities. Thus, heart rate reserve (HRR) can be prescribed if VO2 reserve (VO2R) is known. Therefore, the purpose of this study was to compare VO2 R and HRR during moderate intensity exercise (50%R). Physically active college students …