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2022

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Articles 2401 - 2430 of 23771

Full-Text Articles in Medicine and Health Sciences

Comparison Of Gastrocnemius Shear Wave Elastography Stiffness Over 5 Different Zones, Anthony S. Peterson, Karlee Peterson, Ashley D. Allan, Ray M. Merrill, J. Brent Feland Nov 2022

Comparison Of Gastrocnemius Shear Wave Elastography Stiffness Over 5 Different Zones, Anthony S. Peterson, Karlee Peterson, Ashley D. Allan, Ray M. Merrill, J. Brent Feland

International Journal of Exercise Science: Conference Proceedings

A few studies report that shear wave elastography (SWE) is a reliable method of measuring gastrocnemius muscle stiffness. To date there are no studies assessing variance in stiffness measures at different locations on the muscle. This led us to ask whether the spot at which gastrocnemius stiffness is measured matters. PURPOSE: To determine if measurement site on the medial and lateral gastrocnemius affects SWE stiffness values. METHODS: Twelve subjects (3 men, 9 women) completed this study (Mean age is 23.0 (SD = 1.0) for men and 21.7 (SD = 2.0) for women (t p = 0.3035). Mean height …

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Evaluation Of Average And Maximum Heart Rate Of Wrist-Worn Wearable Technology Devices During Trail Running, Myranda J. Peck, Dustin W. Davis, Elias M. Malek, Nicole R. Vargas, Michael Dial, Bianca Weyers, Wyatt Fullmer, Wesley Ziegler, Damian Gil, Mike Torres, Camden Cox, Nathaniel Bodell, Jacob W. Manning, Jeffrey Cowley, Merrill Funk, Marcus M. Lawrence, Mark Debeliso Phd, James W. Navalta Nov 2022

Evaluation Of Average And Maximum Heart Rate Of Wrist-Worn Wearable Technology Devices During Trail Running, Myranda J. Peck, Dustin W. Davis, Elias M. Malek, Nicole R. Vargas, Michael Dial, Bianca Weyers, Wyatt Fullmer, Wesley Ziegler, Damian Gil, Mike Torres, Camden Cox, Nathaniel Bodell, Jacob W. Manning, Jeffrey Cowley, Merrill Funk, Marcus M. Lawrence, Mark Debeliso Phd, James W. Navalta

International Journal of Exercise Science: Conference Proceedings

It has been estimated that there are 20 million people who participate in trail running, and these numbers are expected to increase by 15% each year. Our laboratory group has conducted studies on the validity of wearable technology watches and heart rate (HR) during trail running. The previous generation devices were mostly inaccurate, and a limitation was that reliability was not measured. PURPOSE: To determine both validity and reliability in newer models of wearable devices during trail running. METHODS: Seventeen participants (F = 7) ran on the Thunderbird Gardens Lightning Switch trail in Cedar City, UT. Demographic characteristics: Age …

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Relationships Between Body Size, Strength, And Power With Throwing Velocity Following A Strength Training Block In High School Water Polo Players, Jacob Patron, Alexander M. Wakely, Erika Hernandez, Robert G. Lockie Nov 2022

Relationships Between Body Size, Strength, And Power With Throwing Velocity Following A Strength Training Block In High School Water Polo Players, Jacob Patron, Alexander M. Wakely, Erika Hernandez, Robert G. Lockie

International Journal of Exercise Science: Conference Proceedings

A high school strength and conditioning program should ideally improve fitness and develop motor skills in athletes. This could be a targeted goal if research details relationships between sport-specific motor skills and measures of fitness in high school athletes. PURPOSE: To investigate the correlations and predictive relationships (controlling for age) between height, body mass, strength, and power on throwing velocity in male high school water polo athletes after a 4-week strength training block. METHODS: Eighteen water polo athletes (age: 15.50±0.20 years; height: 177.05±1.60 cm; body mass: 74.28±3.70 kg) from one high school program were recruited. Testing occurred in …

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Sled Pull Training Protocol Does Not Improve Peak Force And Increases Asymmetry In Collegiate Soccer Players, Kyra K. Parske, John A. Brasher, Robert V. Musci, Jenevieve L. Roper Nov 2022

Sled Pull Training Protocol Does Not Improve Peak Force And Increases Asymmetry In Collegiate Soccer Players, Kyra K. Parske, John A. Brasher, Robert V. Musci, Jenevieve L. Roper

International Journal of Exercise Science: Conference Proceedings

Speed and acceleration are trainable components that are critical determinants of success in team sports, particularly soccer. Lower extremity strength is one of many factors that determine the maximal force output and velocity of individuals, which is critical to success in sport. PURPOSE: To determine the effects of a 12-week sled pull training intervention on isometric leg strength and asymmetry. METHODS: Participants from Division 1 collegiate men (20 ± 1.5yrs, 168.28 ± 51.17cm, 73.44 ± 23.46kg) and women’s soccer (19.58 ± 1.02yrs, 167.07 ± 3.81cm, 62.46 ± 8.41kg) team performed pre-training isometric thigh pulls on force plates measuring peak force …

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Common Carotid Artery Hemodynamic And Stiffness Responses To Acute And Repeated Bouts Of High Intensity Cardiorespiratory And Resistance Exercise, Zaria S. Opara, Michael Diaz, Lavleen Sandhu, Gabriel Hernandez, Octavia Gosnel, Louise Kelly Ph.D, Jie Liu Md, Ph.D, Allan Knox Ph.D Nov 2022

Common Carotid Artery Hemodynamic And Stiffness Responses To Acute And Repeated Bouts Of High Intensity Cardiorespiratory And Resistance Exercise, Zaria S. Opara, Michael Diaz, Lavleen Sandhu, Gabriel Hernandez, Octavia Gosnel, Louise Kelly Ph.D, Jie Liu Md, Ph.D, Allan Knox Ph.D

International Journal of Exercise Science: Conference Proceedings

High intensity exercise is a popular mode of physical activity amongst professional and recreational athletes. The physiological stress induced by intense cardiorespiratory and muscular strengthening exercise has clinically relevant cardiovascular benefits. However, the immediate cerebrovascular response to acute and repeated bouts of intense exercise has yet to be determined. PURPOSE: To observe the hemodynamic and stiffness indexes of the common carotid artery (CCA) in response to acute and repeated bouts of cardiorespiratory and resistance exercise. METHODS: Participants (n=28) performed a maximal oxygen consumption test (VO2max), leg strength test (1RM), a sprint interval session (SIS, all out …

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Functional Comparison Of Six-Minute Walk Tests Between Shod And Minimalist Footwear Individuals In Mid-Life: A Preliminary Pilot Study Analysis, Camille L. Nguyen, Aaron W. Johnson, Annie Smedley, Sarah T. Ridge Nov 2022

Functional Comparison Of Six-Minute Walk Tests Between Shod And Minimalist Footwear Individuals In Mid-Life: A Preliminary Pilot Study Analysis, Camille L. Nguyen, Aaron W. Johnson, Annie Smedley, Sarah T. Ridge

International Journal of Exercise Science: Conference Proceedings

Research has shown that wearing minimalistic footwear can increase intrinsic and extrinsic foot muscle size and strength,although the effect of transitioning from shod to minimalist footwear on gait functionality–such as performance on a six-minute walk test–is not well documented. PURPOSE: We observed the differences in a six-minute functional walk test between mid-life (45yrs-65yrs) individuals who transitioned to minimalist footwear (MF) over a fourteen month period compared to habitually shod (HS) individuals. METHODS: Twenty mid-life individuals participated in this study. Participants were randomly assigned to either the MF (n=8, age= 56.5 ± 5.18 yrs, height= 162.71 ± 7.69 cm, …

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Time Course Evaluation Of Mapk Phosphorylation To Resistance Exercise: A Systematic Review, Justin X. Nicoll, Christopher J. Lee Nov 2022

Time Course Evaluation Of Mapk Phosphorylation To Resistance Exercise: A Systematic Review, Justin X. Nicoll, Christopher J. Lee

International Journal of Exercise Science: Conference Proceedings

Mitogen activated protein kinases (MAPK) are intramuscular cell signaling proteins that regulate adaptations to resistance exercise (RE). The MAPKs extracellular signal-regulated kinase 1/2 (ERK1/2), c-jun N-terminal kinase (JNK), p90RSK, and p38-MAPK increase during and after RE. Despite the well-known increase in post-RE phosphorylation responses of MAPK, the time-course and pattern of their activation remains unclear and poorly described. The ability to clearly define phosphorylation patterns during recovery are limited due to the variety of RE protocols implemented and populations tested when investigating MPAK responses to RE. PURPOSE: To systematically review literature on exercise-induced phosphorylation of ERK1/2, JNK, p38-MAPK, and …

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An Analysis Of Horizontal Forces Between Sports, Riley Neuenburg, Brock Crews, Jared W. Coburn, Kevin Choe Nov 2022

An Analysis Of Horizontal Forces Between Sports, Riley Neuenburg, Brock Crews, Jared W. Coburn, Kevin Choe

International Journal of Exercise Science: Conference Proceedings

Different sports have various demands that athletes must meet to perform at the requisite level. For example, hockey athletes produce primarily horizontal forces due to skating. However, in basketball, there are a combination of horizontal forces from running and vertical forces from frequent jumping. Therefore, utilizing forces exclusively in one direction as a metric to compare athletes of different sports could provide a limited analysis. PURPOSE: The purpose of this investigation was to compare the relationship between horizontal and vertical forces between athletes who participate in the 4 major sports in the US by using a ratio of horizontal …

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Assessment Of Repeated Measurement Variance In Shear Wave Elastography Of The Medial And Lateral Gastrocnemius And Soleus, Kassidy J. Naef, Brent Feland Nov 2022

Assessment Of Repeated Measurement Variance In Shear Wave Elastography Of The Medial And Lateral Gastrocnemius And Soleus, Kassidy J. Naef, Brent Feland

International Journal of Exercise Science: Conference Proceedings

The use of shear wave elastography (SWE) as a method to measure intrinsic muscle stiffness is gaining increasing interest in the scientific community. To date, a few studies exist that have evaluated reliability of SWE of the gastrocnemius muscle under various conditions. However, data on day-to-day variance, inter-rater variance and frame use in reporting stiffness is missing. PURPOSE: The purpose of this study was to calculate the variance of repeated measures for SWE in 2 different muscles using different raters and to analyze the number of elastogram frames needed for stiffness assessment. METHODS: 12 raters measured SWE of …

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Sled-Pull Training Improves Maximal Horizontal Velocity In Collegiate Male And Female Soccer Players, Atithi K. Multani, John A. Brasher, Robert J. Rovetti, Junyuan Lin, Robert V. Musci, Jenevieve L. Roper Nov 2022

Sled-Pull Training Improves Maximal Horizontal Velocity In Collegiate Male And Female Soccer Players, Atithi K. Multani, John A. Brasher, Robert J. Rovetti, Junyuan Lin, Robert V. Musci, Jenevieve L. Roper

International Journal of Exercise Science: Conference Proceedings

The force velocity profile (FvP), which details the capacity to sprint and accelerate, is a determinant of success in soccer. To date, no data exist that details the FvP of male and female collegiate Division I soccer players. Further, there is limited insight on how training interventions may modify the FvP of either males or females. PURPOSE: The aim of this investigation was to compare FvP between collegiate male and female athletes and assess the efficacy of a 12-week sled pull training intervention. METHODS: 17 male (20.17 ± 1.38 yrs) and 12 female (19.75 ± 1.05 yrs) soccer …

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Lower Extremity Loading And Subsequent Muscle Soreness Following High-Intensity Interval Training Protocols: A Pilot Study, Jared Moore, Noah Ogata, George Salem Nov 2022

Lower Extremity Loading And Subsequent Muscle Soreness Following High-Intensity Interval Training Protocols: A Pilot Study, Jared Moore, Noah Ogata, George Salem

International Journal of Exercise Science: Conference Proceedings

High-intensity interval training (HIIT) is a popular form of exercise that is being performed by the general population as well as athletes. There is little work into how the lower extremity loading within HIIT protocols differs among various exercise modalities and the effects these differences may have on resulting muscle soreness. PURPOSE: The purpose of this pilot study was to characterize lower extremity vertical reaction forces (vRF) during treadmill running and cycling HIIT protocols in young, healthy adults and to explore the relations of the vRF with delayed onset muscle soreness (DOMS). METHODS: Participants completed a heart rate …

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Mechanical Differences Between Sexes During A Jump Landing, Miranda Moeslein, Lexy Clark, Jared W. Coburn, Kevin Choe Nov 2022

Mechanical Differences Between Sexes During A Jump Landing, Miranda Moeslein, Lexy Clark, Jared W. Coburn, Kevin Choe

International Journal of Exercise Science: Conference Proceedings

Jump landings are a frequent occurrence in both male and female sports. However, aberrant landing mechanics, such as landing with smaller knee flexion angles (KFA), can increase the likelihood of knee joint injury. Previous research suggests males and females demonstrate different landing mechanics, which could explain the higher incidence of knee injuries in females, such as anterior cruciate ligament (ACL) injury. PURPOSE: The purpose of this study was to compare lower extremity landing biomechanics associated with ACL injury between males and females. We hypothesized that females would land with smaller KFA and greater knee abduction angles (KAA) compared to males. …

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Are There Balance Differences Between Aquatic And Land Athletes?, Bethany Metcalfe, Taylor Garcia, Travis Peterson Nov 2022

Are There Balance Differences Between Aquatic And Land Athletes?, Bethany Metcalfe, Taylor Garcia, Travis Peterson

International Journal of Exercise Science: Conference Proceedings

Proficiency in static and dynamic balance tests is an indicator of both athletic proficiency as well as an indicator of movement deficiencies. Those movement deficiencies could be due to a neurological issue related to mild traumatic brain injury (i.e. concussion). Previous studies have studied single leg static balance using the BESS (Balance error scoring system) which is also used by the NCAA to pre-test for concussions (Riemann, 2012). Aquatic athletes could be at a predisposed disadvantage in NCAA concussion testing because there is a possibility of having differences in balance ability (as compared to land athletes) that may be mistaken …

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One Year Effects Of Rock Steady Boxing Exercise In Parkinson’S Disease, Stephanie Mercado, Tianna Wehby, Maria Bellumori Nov 2022

One Year Effects Of Rock Steady Boxing Exercise In Parkinson’S Disease, Stephanie Mercado, Tianna Wehby, Maria Bellumori

International Journal of Exercise Science: Conference Proceedings

Parkinson’s disease (PD) is a progressive, neurodegenerative disease resulting in physical function decline. Exercise slows the progression of PD. Rock Steady Boxing (RSB) is a high-intensity, non-contact boxing program designed for people with PD. While it is typically ideal to obtain measurable improvements upon starting an exercise regimen, due to the progressive nature of PD and ensuing decline in function, maintenance is a primary goal in this population. PURPOSE: The purpose of this study was to determine whether an RSB program maintains physical function in people with PD. METHODS: Eighteen people with PD (Hoehn-Yahr levels 1-4, ages 65-83) completed tests …

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Effect Of Localized Vibration Using Massage Gun At 40hz And 50hz On Blood Flow, Alyssa C. Mecate, Robert R. Richardson, Devin Needs, Anthony S. Peterson, Tanner D. Adams, Aaron W. Johnson, Ray M. Merrill, J. Brent Feland Nov 2022

Effect Of Localized Vibration Using Massage Gun At 40hz And 50hz On Blood Flow, Alyssa C. Mecate, Robert R. Richardson, Devin Needs, Anthony S. Peterson, Tanner D. Adams, Aaron W. Johnson, Ray M. Merrill, J. Brent Feland

International Journal of Exercise Science: Conference Proceedings

Data has shown that whole body vibration can positively affect blood flow, however, there are very few studies on the effect of localized therapeutic vibration on arterial blood flow. Occupational studies looking at localized vibration effects on skin blood flow normally include high frequency settings. In the last few years, massage guns have become popular, but they operate at lower frequencies. Currently, there is no data on the effects of localized vibration from massage guns on arterial blood flow. PURPOSE: To compare the effects of two different frequencies of localized vibration on blood flow in the popliteal artery. METHODS: 12 …

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Inflammatory Response Following High-Intensity Interval Training (Hiit) Across Different Exercise Modalities: A Pilot Study, Bailey Mclagan, Jared Moore, George Salem Nov 2022

Inflammatory Response Following High-Intensity Interval Training (Hiit) Across Different Exercise Modalities: A Pilot Study, Bailey Mclagan, Jared Moore, George Salem

International Journal of Exercise Science: Conference Proceedings

Exercise-related muscular contractions produce and release numerous myokines, namely interleukins (IL) 6, 8, and 10. Most studies have focused on longer duration (>60 minutes) exercise and suggest that the IL-6 response to running is greater than that of cycling. However, to date, the effect of 4x4 High-Intensity Interval Training (HIIT) and modality on the inflammatory response to exercise have not been reported. PURPOSE: This pilot investigation characterized the inflammatory biomarker response to HIIT 4x4 running and cycling protocols. METHODS: Five young, recreationally active volunteers (1 female, 4 males; 27.20 ± 3.42 years) completed a heart rate max …

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Chronotypical And Habitual Exercise Timing Effects On Physical Activity And Sleep Quality, Elias M. Malek, Michael Dial, Graham Mcginnis 8954626 Nov 2022

Chronotypical And Habitual Exercise Timing Effects On Physical Activity And Sleep Quality, Elias M. Malek, Michael Dial, Graham Mcginnis 8954626

International Journal of Exercise Science: Conference Proceedings

An individual's circadian rhythm and chronotype, or circadian preference, influence physical activity (PA) and sleep patterns during the 24-hour period, with people who prefer later exercise exhibiting poorer sleep patterns and reduced physical activity (PA) levels. Previous work comparing exercise timing’s relationship with chronotype examined single bouts of exercise, indicating the need to examine habitual exercise trends on a longer-term basis. PURPOSE: To analyze the interaction between chronotype and long-term exercise timing preference on physical activity and sleep quality. METHODS: Data were analyzed retrospectively from an open-source data set collected by Cunningham et al. from 05/2020 – 11/2021. Chronotype was …

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Individuals Following Anterior Cruciate Ligament Reconstruction Respond Differently To Limb Loading Instruction: A Clustering Analysis, Willa Ma, Susan Sigward Nov 2022

Individuals Following Anterior Cruciate Ligament Reconstruction Respond Differently To Limb Loading Instruction: A Clustering Analysis, Willa Ma, Susan Sigward

International Journal of Exercise Science: Conference Proceedings

Individuals following anterior cruciate ligament reconstruction (ACLr) demonstrate altered loading strategies such as shifting mechanical demand away from the surgical knee. Previous work found that individuals can restore limb loading symmetry with instruction to equalize weight distribution between limbs during a squat task. However, when looking at individual responses to these instructions, it appear that not all individual responded similarly. PURPOSE: To use k-means clustering to describe the variation in response to instruction to equalize weight between limbs in individuals 3-4 months post-ACLr. METHODS: We performed a secondary analysis of a dataset including two groups: individuals 110.4 days …

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Reaction Times Altered By Anterior Cruciate Ligament Tear, Bonny H. Lu, Sara A. Harper, David A.E. Bolton, Anne Z. Beethe Nov 2022

Reaction Times Altered By Anterior Cruciate Ligament Tear, Bonny H. Lu, Sara A. Harper, David A.E. Bolton, Anne Z. Beethe

International Journal of Exercise Science: Conference Proceedings

The anterior cruciate ligament (ACL) tear is associated with declined performance upon return to sport, with high rates of reinjury. Despite ACL reconstruction, ACL tears induce neuroplasticity, increasing reliance on vision and preparation time in movement. This increased reliance on vision and time could lead to motor control strategy deficits under sport-specific tasks. PURPOSE: To determine if ACL injury results in slower muscle onsets in a reactive stepping task and if this is affected by preparation. METHODS: Reactive balance was assessed in ACL (N=6) and healthy control (CON; N=12) participants using a lean and release device to initiate …

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The Performance Profile Of A Division I Football Team, Seth B. Long, Tyler Shumate, Dierdra K. Bycura, Scott N. Drum Nov 2022

The Performance Profile Of A Division I Football Team, Seth B. Long, Tyler Shumate, Dierdra K. Bycura, Scott N. Drum

International Journal of Exercise Science: Conference Proceedings

Reporting athletic performance characteristics of a Division I collegiate football team may serve to inform coaching personnel and sports performance staff about the most versatile players to utilize for various competitions. Performance data may also help guide developing athletes about benchmarks to achieve for optimal competitiveness. PURPOSE: Our aim was to observe athletic performance characteristics of and differences between designated starters (ST) vs non-starters (NST). METHODS: 44 athletes – ST (n=22) vs NST (n=22) – were selected using a convenience sample and equally distributed between offense and defense positions. Preseason performance data were analyzed related to select power, including …

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Firefighter Trainee Fitness, Reasons For Academy Release, And Predictive Capabilities Of Fitness Tests, Robert G. Lockie, Fernando Montes, Robin (Rob) Marc Orr, J. Jay Dawes Nov 2022

Firefighter Trainee Fitness, Reasons For Academy Release, And Predictive Capabilities Of Fitness Tests, Robert G. Lockie, Fernando Montes, Robin (Rob) Marc Orr, J. Jay Dawes

International Journal of Exercise Science: Conference Proceedings

Firefighter trainees need a level of fitness to be admitted to and complete a training academy. Fitness could indicate a trainee’s likelihood of graduation. PURPOSE: Determine fitness differences between trainees who graduated (GRAD) or were released due to a) injury (RELI), b) skills test performance failures (RELP), or c) resignation (RELR); and whether fitness predicted graduation or academy release. METHODS: Data from an occupational physical ability test (OPAT) for 686 trainees were analyzed, including: Illinois agility test; push-ups; pull-ups; leg tucks; estimated maximal aerobic capacity (V̇O2max) from the multistage fitness test; backwards overhead 4.54-kg medicine ball …

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The Effects Of Acute Beetroot Juice Ingestion On Exercise And Cognitive Performance In Female Athletes, Isabella G. Lincoln, Courtney Merrill, Katherine M. Price, Sean T. Karl, Ryan T. Kenney, Alyssa A. Riley, Chandler F. Riley, Maya A. Hammer, Adam Pennell, Rachel Tan Nov 2022

The Effects Of Acute Beetroot Juice Ingestion On Exercise And Cognitive Performance In Female Athletes, Isabella G. Lincoln, Courtney Merrill, Katherine M. Price, Sean T. Karl, Ryan T. Kenney, Alyssa A. Riley, Chandler F. Riley, Maya A. Hammer, Adam Pennell, Rachel Tan

International Journal of Exercise Science: Conference Proceedings

Nitrate-rich beetroot juice can enhance intense exercise performance which is attributed to enhanced skeletal muscle contractility. However, limited data exist in females and it is unknown whether dietary nitrate has an ergogenic effect in this population. PURPOSE: To investigate the potential effects of acute nitrate ingestion on a battery of exercise performance and cognitive tests before and after fatiguing intermittent running exercise. METHODS: Fifteen female team-sport athletes were assigned in a randomized, double-blind, crossover design to consume nitrate-rich beetroot juice (BR; 12 mmol of nitrate) and nitrate-depleted beetroot juice (PL; 0.10 mmol of nitrate) 2.5 h prior to …

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Differences In Arterial Occlusion Pressure Using Two Different Cuff Inflation Protocols, Ryan B. Lacey, Chase Blazzard, Hannah Hart, Nicole Kasper, Daniela Lopez, Shay Richards, Pat R. Vehrs Facsm Nov 2022

Differences In Arterial Occlusion Pressure Using Two Different Cuff Inflation Protocols, Ryan B. Lacey, Chase Blazzard, Hannah Hart, Nicole Kasper, Daniela Lopez, Shay Richards, Pat R. Vehrs Facsm

International Journal of Exercise Science: Conference Proceedings

The occlusion pressure used during blood flow restriction during exercise is based on the arterial occlusion pressure (AOP). Although previous studies have measured AOP using two different cuff inflation protocols, no studies have compared the AOP measured using both protocols. PURPOSE: The purpose of this study was to compare the superficial femoral artery AOP when measured using two different cuff inflation protocols. METHODS: Ultrasound (GE LOGIQ) was used to detect blood flow through the superficial femoral artery of both legs in 20 males and 20 females. An inflatable cuff was placed on the upper thigh. The superficial femoral artery was …

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Bone Mineral Density In Weight-Bearing And Aquatic Athletes, Elizabeth Krauss, Kayla Stuckenberg, Hawley C. Almstedt Nov 2022

Bone Mineral Density In Weight-Bearing And Aquatic Athletes, Elizabeth Krauss, Kayla Stuckenberg, Hawley C. Almstedt

International Journal of Exercise Science: Conference Proceedings

Bone mineral density (BMD) is a measure of mineral deposit within the bone that can be used as an early-adulthood predictor for onset of osteoporosis. Type of exercise induces a stress-response which builds BMD. PURPOSE: Non-weight-bearing-athletes were compared to weight-bearing-athletes and controls to identify differences in bone health among groups. The participants were compared longitudinally to measure change in BMD overtime. This study was modeled after work by Taaffe et al. (1995) which concluded that female athletes who do not engage in weight-bearing-activities had lower BMD. METHODS: Height, weight, and calcium intake was collected for female students (20.0±1.3 years); 23 …

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Altered Cortical Activation Patterns In The Motor Cortex Post Acl Reconstruction Compared To Healthy Control, Ryan Kim, Lana Kayali, Abi Rae Stine, Yong Woo An Facsm Nov 2022

Altered Cortical Activation Patterns In The Motor Cortex Post Acl Reconstruction Compared To Healthy Control, Ryan Kim, Lana Kayali, Abi Rae Stine, Yong Woo An Facsm

International Journal of Exercise Science: Conference Proceedings

Following anterior cruciate ligament reconstruction (ACLR), patients often experience persistent knee dysfunction, such as knee strength deficit, possibly correlated with altered cortical activation in the brain. However, it remains unclear if ACLR patients exhibit different cortical activation patterns in the primary motor cortex (M1) during strength tasks, when compared to healthy control. PURPOSE: To examine electrocortical activation patterns in the M1 during submaximal isometric contraction of the quadriceps between an ACLR patient and a healthy control. METHODS: Both ACLR (female, 21yrs,180.34cm, 77.11kg) and control (female, 39yrs, 160.02cm, 61.23kg) performed isometric extension of the reconstructed or matched knees at …

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The Physiological Profile Of A Blind Female Solo Ultra-Endurance Cyclist – A Novel Case Study, Jordyn M. Keddy, Scott N. Drum Nov 2022

The Physiological Profile Of A Blind Female Solo Ultra-Endurance Cyclist – A Novel Case Study, Jordyn M. Keddy, Scott N. Drum

International Journal of Exercise Science: Conference Proceedings

Ultra-endurance mountain biking (MTB) greater than 2,450 miles in 51 days with over 150,000 feet of elevation gain is a significant physiological and fear-inducing journey for anyone. This case study showcases the psychophysiology of a blind solo (i.e., single bike) rider (BSR) with history of traumatic brain injury (TBI) who achieved an unparalleled ride of the Tour Divide MTB route with 2 male guides (MG). PURPOSE: The primary purpose of this project was to observe the interplay between fatigue (acute training load, ATL), fitness (chronic training load, CTL), and form (training stress balance, TSB) as part of a performance management …

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Higher Alpha/Theta Ratio May Indicate Decreased Brain Function In Older Adults During Cspfp10 Compared To Young Adults, Yangmi Kang, Mary A. Berg, Sang-Rok Lee, Jim Kroger, Yong Woo An Nov 2022

Higher Alpha/Theta Ratio May Indicate Decreased Brain Function In Older Adults During Cspfp10 Compared To Young Adults, Yangmi Kang, Mary A. Berg, Sang-Rok Lee, Jim Kroger, Yong Woo An

International Journal of Exercise Science: Conference Proceedings

Declined physical ability and brain function observed in elder can affect daily living activities and negatively influence the quality of life (QOL). While the extensive research has explored the changes in cortical activity related to motor control in elder, less is known about how the brain functions during a physical function test. PURPOSE: To examine the electrocortical activation in the older adults’ brain during the Continuous Scale Physical Function Performance-10 (CSPFP-10) compared to young adults. METHODS: Twenty five older adults (OLD; 75.40±7.32 yrs, 70.33±18.23 kg, 162.87±7.55 cm) and twenty five young (YOUNG; 19.88±1.72 yrs, 66.52±14.22 kg, 167.50±10.22 cm) …

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The Effects Of Alternate-Day Fasting On Physical Activity, Gage E. Jensen Nov 2022

The Effects Of Alternate-Day Fasting On Physical Activity, Gage E. Jensen

International Journal of Exercise Science: Conference Proceedings

Alternate Day Modified Fasting (ADMF) is an intermittent fasting approach that combines days of normal caloric consumption with days of low caloric consumption (~25% of daily requirements).While research has demonstrated the effects of ADMF on weight loss and metabolic health, research focused on the physical activity of participants has not been thoroughly evaluated. PURPOSE: The purpose of this study was to determine the extent that intermittent fasting can alter habitual physical activity patterns. METHODS: Forty two participants (male/female) completed 3 days of baseline testing followed by a two week treatment period where they followed a modified alternate-day fasting …

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Creatine Supplementation Improves Performance Without Deleterious Cardiovascular Parameters In Trained Females, Citlaly Jauregui, Steven B. Machek, Katia Azevedo, Warleyson Azevedo, Jeffrey Willardson, Marco Machado Nov 2022

Creatine Supplementation Improves Performance Without Deleterious Cardiovascular Parameters In Trained Females, Citlaly Jauregui, Steven B. Machek, Katia Azevedo, Warleyson Azevedo, Jeffrey Willardson, Marco Machado

International Journal of Exercise Science: Conference Proceedings

Creatine monohydrate supplementation is broadly substantiated to elicit both favorable ergogenic and health-associated advantages amidst vast demographics. Nevertheless, its impacts on human cardiovascular outcomes are hitherto undescribed in generally healthy populations. Furthermore, females are largely underrepresented in the ergogenic creatine literature and their potentially differential cardiovascular responses are unknown. PURPOSE: to determine whether young, healthy females would glean discernible hypertrophy and enhanced performance, commensurate to favorable post-resistance training cardiovascular parameters and relative to placebo-matched controls across a four week training timeline. METHODS: Twenty-eight resistance trained women (25.5±6.1 years) were randomly assigned to supplement creatine monohydrate (CRE; 5g creatine monohydrate …

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Effect Of A University Physical Activity Challenge On Levels Of Anxiety, Depression, Stress, And Perceived Dependency Of Wearing A Physical Activity Tracker, Emily M. Jackson, Sarah M. Camhi, Stephanie L. Cooper Nov 2022

Effect Of A University Physical Activity Challenge On Levels Of Anxiety, Depression, Stress, And Perceived Dependency Of Wearing A Physical Activity Tracker, Emily M. Jackson, Sarah M. Camhi, Stephanie L. Cooper

International Journal of Exercise Science: Conference Proceedings

Many studies have researched the benefits of physical activity (PA) and well-being, leading many universities to promote PA on campus. There is limited research on how university-based PA promotion impacts mental health, as well as the impact of wearing a physical activity tracker (PAT) and its potential to create dependency on wearing the device. PURPOSE: To understand the effects of a 4-week campus-wide PA challenge on levels of anxiety, depression, and stress in college students, and the potential dependency effects of wearing a PAT. METHODS: For the duration of the 4-week challenge, 44 undergraduate and 6 graduate students …

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