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Articles 241 - 270 of 3176
Full-Text Articles in Exercise Physiology
The Interaction Of Treadmill Type And Incline Slope On Biomechanics And Muscle Activation During Human Locomotion, Rohit Kundu, Ricardo Sanchez, Taj Krieger, Eli Lankford
The Interaction Of Treadmill Type And Incline Slope On Biomechanics And Muscle Activation During Human Locomotion, Rohit Kundu, Ricardo Sanchez, Taj Krieger, Eli Lankford
International Journal of Exercise Science
International Journal of Exercise Science 17(1): 1478-1492, 2024. To investigate the effects of differing treadmills on impact acceleration and muscle activation. Methods: 15 males and 7 females (27.8 ± 7.7yrs), engaged in two sessions of high-incline walking (HIW), and low-incline jogging (LIJ) on different deck systems (cushioned) treadmills (TM1 and TM2). Sessions lasted 5-minutes, and participants maintained a self-selected pace matched for each session. EMG markers were placed over the Tibialis Anterior (TA), Soleus (SOL), Lateral Gastrocnemius (LG), Biceps Femoris (BF), Gluteus Maximus (GM), Anterior Deltoid (AD), Vastus Lateralis (VL), and the Erector Spinae (ES). Trident Inertial Measurement Units (IMU) …
Effect Of Sex And Age On Knee Strength In Young Athletes: A Systematic Review And Meta-Analysis, Hui Gao, Xiaoquan Luo
Effect Of Sex And Age On Knee Strength In Young Athletes: A Systematic Review And Meta-Analysis, Hui Gao, Xiaoquan Luo
International Journal of Exercise Science
International Journal of Exercise Science 17(6): 1461-1477, 2024. The purpose was to summarize the studies examining knee strength in young athletes and provide valuable insights into the magnitude of changes in knee flexion and extension strength during the transition from pre-puberty to puberty among male and female athletes. The literature search was conducted through Cochrane Library, Embase, PubMed, Web of Science. Cohen’s effect size (ES) and 95% confidence intervals (CIs) were computed using a random effects model. While comparing males and females, as well as pre-puberty and puberty stages, we conducted subgroup analyses for pre-puberty versus puberty and for males …
Acute Effects Of Serial And Integrated Concurrent Exercise On Circulating Micrornas -126 And -222 In Sedentary Adults, Matthew F. Brisebois, Ryan A. Gordon, Emily L. Zumbro, Matthew L. Sokoloski, Anthony A. Duplanty, Shanil Juma, Brandon R. Rigby
Acute Effects Of Serial And Integrated Concurrent Exercise On Circulating Micrornas -126 And -222 In Sedentary Adults, Matthew F. Brisebois, Ryan A. Gordon, Emily L. Zumbro, Matthew L. Sokoloski, Anthony A. Duplanty, Shanil Juma, Brandon R. Rigby
International Journal of Exercise Science
International Journal of Exercise Science 17(2): 1444-1460, 2024. The purpose of this study was to compare changes in circulating microRNAs -126 (c-miR-126) and -222 (c-miR-222) following acute serial concurrent exercise (SCE) and integrated concurrent exercise (ICE) sessions among young, sedentary adults. Ten males and 9 females completed the study procedures. For SCE, participants performed resistance exercise (RE) followed by aerobic exercise (AE), without mixing the two. For ICE, participants performed a brief bout of AE before each set of RE. Blood was collected before, immediately after (IP), and 1 h (1HR) after each exercise session. Expression of c-miR-126 significantly increased …
Effects Of Lactate On Corticospinal Excitability: A Scoping Review, Jess T. Gibson, Hudson J. Barr, Shaun G. Boe
Effects Of Lactate On Corticospinal Excitability: A Scoping Review, Jess T. Gibson, Hudson J. Barr, Shaun G. Boe
International Journal of Exercise Science
International Journal of Exercise Science 17(2): 1429-1443, 2024. Aerobic exercise has been shown to impact corticospinal excitability (CSE), however the mechanism(s) by which this occurs is unclear. Some evidence suggests an increase in blood lactate concentration resulting from exercise may be what is driving these changes in corticospinal excitability. The extent of literature examining this effect and whether it is consistent across the literature is unknown. As such, the objective of this scoping review was to summarize the existing literature examining the effect of lactate on corticospinal excitability and to determine any trend(s) in the effect. Embase, CINAHL, Medline, SPORTDiscus, …
Effectiveness Of A Fast- Vs. Slow-Velocity Training On Load-Velocity Characteristics In Older Adults: A Pilot Study, Blake Murphy, Kelley Hammond, Leland Barker, Mae Grahek, Mikayla Grocki, Jake A. Siedlik, Mitchel Magrini
Effectiveness Of A Fast- Vs. Slow-Velocity Training On Load-Velocity Characteristics In Older Adults: A Pilot Study, Blake Murphy, Kelley Hammond, Leland Barker, Mae Grahek, Mikayla Grocki, Jake A. Siedlik, Mitchel Magrini
International Journal of Exercise Science
Resistance training at fast velocities is suggested to be more effective for improving muscular strength and movement speed compared slow, heavy training. This study aimed to examine the effects of a fast-velocity (FVRT) compared to a slow-velocity (SVRT) resistance training program on maximal strength, maximal movement speed, and load-velocity characteristics in older adults. Nineteen community-dwelling older adults were randomly assigned to either the FVRT or SVRT group and completed a twice weekly, progressive resistance training protocol for 8-weeks. Both groups were instructed to move the weight “as fast as possible” and received movement velocity biofeedback. Absolute (1RMABS) and …
Influence Of Fatigue On The Modification Of Biomechanical Parameters In Endurance Running: A Systematic Review, Javier Olaya-Cuartero, Berta Lopez-Arbues, Jose M. Jimenez-Olmedo, Lamberto Villalon-Gasch
Influence Of Fatigue On The Modification Of Biomechanical Parameters In Endurance Running: A Systematic Review, Javier Olaya-Cuartero, Berta Lopez-Arbues, Jose M. Jimenez-Olmedo, Lamberto Villalon-Gasch
International Journal of Exercise Science
International Journal of Exercise Science 17(1): 1377-1391, 2024. Fatigue accumulated during the practice of endurance running can be understood as the decrease in sports performance caused by physical exertion. Since fatigue can manifest itself in multiple ways, its influence is difficult to understand, and many authors propose different studies with the aim of obtaining firm conclusions. Thus, the aim of this systematic review was to analyze the effect of fatigue on the modification of biomechanical parameters to mitigate adverse effects and optimize positive adaptations to training. A systematic review was carried out using scientific research papers from specific sport science …
Ankle Stability And Single-Leg Balance Control In Collegiate Female Soccer Players Versus Non-Soccer Players, Jesus Aguilar, Courtnie Cano, Matthew Cunningham, You-Jou Hung
Ankle Stability And Single-Leg Balance Control In Collegiate Female Soccer Players Versus Non-Soccer Players, Jesus Aguilar, Courtnie Cano, Matthew Cunningham, You-Jou Hung
International Journal of Exercise Science
International Journal of Exercise Science 17(6): 1406-1415, 2024. Ankle sprains are common in female soccer players. Ankle injuries have the potential to impact balance control, which can further contribute to recurrent injuries. This study aimed to examine if female collegiate soccer players exhibited worse ankle stability and single-leg balance than female non-soccer players, and whether there was a correlation between ankle stability and single-leg balance. Eighteen female collegiate soccer players and 22 female non-soccer players participated in the study. The Cumberland Ankle Instability Tool (CAIT) was used to evaluate ankle stability. The Athletic Single Leg Stability Test (ASLST) of the …
The Effects Of High-Intensity Functional Training On The Perceptions Of Exercise In Middle-Aged Females: A Pilot Study, Halle N. Brin, Baylie G. Sigmund, Nathan D. Dicks, Kathryn J. Deshaw, Tanis J. Walch, Michael J. Carper, Allison M. Barry
The Effects Of High-Intensity Functional Training On The Perceptions Of Exercise In Middle-Aged Females: A Pilot Study, Halle N. Brin, Baylie G. Sigmund, Nathan D. Dicks, Kathryn J. Deshaw, Tanis J. Walch, Michael J. Carper, Allison M. Barry
International Journal of Exercise Science
International Journal of Exercise Science 17(5): 1392-1405, 2024. The high prevalence of obesity and physical inactivity in the U.S. is a public health crisis. This study aims to examine the effects of high-intensity functional training (HIFT) on exercise perceptions and physiological changes in inactive females. A pre-test and post-test, quasi-experimental design was conducted with inactive, middle-aged females (n = 8) participating in an 8-week supervised and verified intervention (2-week High-Intensity Interval Training, 6-weeks HIFT). The Health Belief Model Scale for Exercise (HBMS-E) survey was completed pre-intervention, post-intervention, and 4-week follow-up to assess exercise perceptions. Pre- and post-intervention physiological assessments …
Examining Changes In Pain Sensitivity Following 8 Minutes Of Cycling At Varying Exercise Intensities, Brandi B. Antonio, Jeffrey Stout, Danielle Sterner, Abigail Anderson, David Fukuda
Examining Changes In Pain Sensitivity Following 8 Minutes Of Cycling At Varying Exercise Intensities, Brandi B. Antonio, Jeffrey Stout, Danielle Sterner, Abigail Anderson, David Fukuda
International Journal of Exercise Science
International Journal of Exercise Science 17(7): 1337-1351, 2024. This study assessed the effect of an eight-minute cycling intervention using varying intensities on exercise-induced hypoalgesia (EIH). The main objective of this study was to examine the effect of varying intensities on pressure pain threshold (PPT) and heat pain threshold (HPT) at the thigh and forearm, tested pre- and post-cycling intervention. Healthy male participants (n = 16) performed a graded exercise test on a cycle ergometer to establish their peak power output (PPO). In subsequent visits, participants completed five different 8-minute cycling interventions, with intensities randomly assigned to one of three …
Perceptions Of Peer And Parental Support: Feasibility Of A Physical Activity Intervention For Adolescent Girls, Avery G. Douglas, Deirdre Dlugonski, Johanna M. Hoch
Perceptions Of Peer And Parental Support: Feasibility Of A Physical Activity Intervention For Adolescent Girls, Avery G. Douglas, Deirdre Dlugonski, Johanna M. Hoch
International Journal of Exercise Science
International Journal of Exercise Science 17(5): 1352-1360, 2024. Physical activity (PA) has a wide range of health benefits. Children with high levels of social support are more likely to achieve adequate levels of PA. The purposes of this pilot study were to examine the impact of an after-school intervention on perceived peer and parental support among adolescent girls and to identify correlates of support to explore in future studies to increase PA. Seventeen low-active girls in 6th–7th grade were recruited from a local middle school to participate in an 8-week intervention where they were exposed to various types of PA …
Inter-Individual Responses To Acute Resistance Training In The Blood Pressure Dipping Response In Normotensive And Hypertensive Men, Elizabeth Carpio-Rivera, José Moncada-Jiménez, Alejandro Salicetti-Fonseca, Andrea Solera-Herrera
Inter-Individual Responses To Acute Resistance Training In The Blood Pressure Dipping Response In Normotensive And Hypertensive Men, Elizabeth Carpio-Rivera, José Moncada-Jiménez, Alejandro Salicetti-Fonseca, Andrea Solera-Herrera
International Journal of Exercise Science
International Journal of Exercise Science 17(3): 1361-1376, 2024. The blood pressure dipping response to acute resistance training exercise (RTE) is scarce in the literature. We determined the inter-individual blood pressure (BP) dipping variability of normotensive (NT) and hypertensive (HT) men completing two modalities of a single session of RTE. Volunteers (NT n = 21, HT n = 20) underwent a non-exercise control (CTRL), RTE high-sets low-repetitions (HSLR), and RTE high-repetitions low-sets (HRLS) conditions. Twenty-four-hour ambulatory BP monitoring recorded diurnal and nocturnal systolic (SBP) and diastolic (DBP) BP. Non-significant interactions were found between the category of individuals and the experimental conditions …
Physiological And Psychological Differences Between 20% Grade Incline-Walking And Level-Grade Jogging At Isocaloric Intensity, Motoki Sato, Taj Krieger, Alexis D. Gidley, Brianne Weaver, Craig A. Johnson, David E. Lankford
Physiological And Psychological Differences Between 20% Grade Incline-Walking And Level-Grade Jogging At Isocaloric Intensity, Motoki Sato, Taj Krieger, Alexis D. Gidley, Brianne Weaver, Craig A. Johnson, David E. Lankford
International Journal of Exercise Science
International Journal of Exercise Science 17(6): 1318-1336, 2024. High-incline walking is a relatively new trend with little comparative information. This study compared physiological and psychological differences between high-incline walking at 20% grade (HIW) and level-grade jogging (LGJ) at isocaloric intensities in young adults. Twenty-two participants (M = 11, F = 11) aged 19–31 years completed the study. Participants completed HIW and LGJ on a treadmill for twenty minutes on two separate occasions and matched at isocaloric intensities. Rating of perceived exertion (RPE), maintainability (HCM), and affective valence using the Feeling Scale (FS) were measured at minutes 2, 10, and 20. …
Comparison Of Lower Limb Mass, Thigh Circumference, And Balance Ability After Anterior Cruciate Ligament Reconstruction And In Control Participants, Micah B. Hebert, Laura L. Dill, Paul T. Stuhr, Deanna J. Schmidt
Comparison Of Lower Limb Mass, Thigh Circumference, And Balance Ability After Anterior Cruciate Ligament Reconstruction And In Control Participants, Micah B. Hebert, Laura L. Dill, Paul T. Stuhr, Deanna J. Schmidt
International Journal of Exercise Science
International Journal of Exercise Science 17(1): 1306-1317, 2024. Injury of the anterior cruciate ligament (ACL) in the knee is common, with up to 250,000 cases annually in the United States. Such injuries can lead to muscle atrophy, impaired balance, and limited movement. This study aimed to compare the lower limbs of individuals with ACL reconstruction to a Control group. We hypothesized that ACL participants would exhibit greater asymmetry between lower limbs as compared to Controls. Data were collected from 12 ACL participants and 30 Control participants. Measurements included lower limb muscle mass assessed using bioelectrical impedance, thigh circumference at 10 …
Validity And Reliability Of A Linear Position Transducer To Measure Barbell Velocity, Duration, And Displacement During The Bench Press, Anthony G. Pinzone, Ryan W. Gant, Jennifer Rivera, Edward Z. Pelka, Emily C. Tagesen, Modesto A. Lebron, Adam R. Jajtner
Validity And Reliability Of A Linear Position Transducer To Measure Barbell Velocity, Duration, And Displacement During The Bench Press, Anthony G. Pinzone, Ryan W. Gant, Jennifer Rivera, Edward Z. Pelka, Emily C. Tagesen, Modesto A. Lebron, Adam R. Jajtner
International Journal of Exercise Science
International Journal of Exercise Science 17(7): 1294-1305, 2024. This investigation evaluated validity and reliability of the HUMAC360 linear position transducer (LPT) compared to the Tendo Sport Weightlifting Analyzer (TENDO) for measuring mean velocity (MV), peak velocity (PV), and displacement (D) during the bench press. Seventeen recreationally active individuals completed three visits. During visit one, participants were assessed for their one repetition maximum (1RM) bench press. During subsequent visits, participants completed two sets of three repetitions of bench press at 30, 50, 60, and 70% 1RM. The HUMAC and TENDO measured MV, PV, and D simultaneously, while the HUMAC also measured …
The Influence Of Hip Position On Neck Kinematics And Muscle Activity In Healthy And Non-Specific Neck Pain Subjects, Enrique Lopez, Everett Lohman, Noha Daher, Mansoor Alameri, Robert Dudley
The Influence Of Hip Position On Neck Kinematics And Muscle Activity In Healthy And Non-Specific Neck Pain Subjects, Enrique Lopez, Everett Lohman, Noha Daher, Mansoor Alameri, Robert Dudley
International Journal of Exercise Science
International Journal of Exercise Science 17(1): 1280-1293, 2024. Neck pain is a widespread problem in society with many variables influencing its cause. The angle of the hip may influence the kinematics of the neck in addition to the myoelectrical activation of the surrounding musculature that contributes to the development of neck pain. The purpose of this study was to investigate the changes in spinal inclination angles and muscle activity in the neck using a 10 deg wedge in a forward slope, neutral and rear slope seated position. Forty subjects were recruited for this study. Each subject sat at a workstation …
Validity, Reliability, And Sensitivity Of A Commercially Available Barbell Velocity Measuring Device When Performing Selected Exercises., Daniel J. Lawson, Alex A. Olmos, Cody A. Stahl, Marcel Lopes Dos Santos, Jacob R. Goodin, J. Jay Dawes
Validity, Reliability, And Sensitivity Of A Commercially Available Barbell Velocity Measuring Device When Performing Selected Exercises., Daniel J. Lawson, Alex A. Olmos, Cody A. Stahl, Marcel Lopes Dos Santos, Jacob R. Goodin, J. Jay Dawes
International Journal of Exercise Science
International Journal of Exercise Science 17(4): 1250-1279, 2024. The aim of this study was to determine the validity, reliability, and sensitivity of a new linear position transducer (LPT) device (RepOne) to a previously validated LPT (Tendo) during the barbell back squat and bench press exercises. Fourteen recreationally resistance-trained individuals (7 males and 7 females) performed three repetitions for the back squat and bench press at loads ranging from 30–90% 1RM. Both devices recorded average (ACV) and peak (PCV) concentric velocities concurrently for every repetition at each load. Significant correlations were observed between RepOne and Tendo during the back squat (PCV: …
Effects Of Technique And Dummy Mass On Law Enforcement-Specific Body Drags: Testing And Training Implications, Matthew R. Moreno, J. Jay Dawes, Robin (Rob) Marc Orr, Joseph M. Dulla, Robert G. Lockie
Effects Of Technique And Dummy Mass On Law Enforcement-Specific Body Drags: Testing And Training Implications, Matthew R. Moreno, J. Jay Dawes, Robin (Rob) Marc Orr, Joseph M. Dulla, Robert G. Lockie
International Journal of Exercise Science
International Journal of Exercise Science 17(4): 1235-1249, 2024. Current law enforcement body drag tests may use dummy masses that are underweight compared to current population norms. This study aimed to determine differences in 74.84-kg and 90.72-kg body drag times when performed with a standard (pick up and stand with dummy prior to dragging), adapted (incorporation of time to lift dummy to standing), and preferred (drag with any technique) technique. Forty-three (24 males, 19 females) physically-active, healthy civilians (surrogate population for police recruits) completed drags over 9.75 m with 74.84-kg and 90.72-kg dummies using the three techniques previously stated. A 2 …
Effects Of Virtual Reality-Based Mirror Therapy On Upper Extremity Motor Function, Manual Performance And Gross Manual Dexterity Among Stroke Patients: A Meta-Analysis, Fouzia Hussain, Mahnoor Khursheed, Sumera Afzal, Muhammad Usman Khan, Ahad Hasan, Meeran Hasnain
Effects Of Virtual Reality-Based Mirror Therapy On Upper Extremity Motor Function, Manual Performance And Gross Manual Dexterity Among Stroke Patients: A Meta-Analysis, Fouzia Hussain, Mahnoor Khursheed, Sumera Afzal, Muhammad Usman Khan, Ahad Hasan, Meeran Hasnain
International Journal of Exercise Science
International Journal of Exercise Science 17(7): 1219-1234, 2024. In recent years, innovative technologies have gained prominence in stroke patient rehabilitation worldwide, with virtual reality-based mirror therapy (VRBMT) emerging as a notable example. Hence, the present study aims to determine the efficacy of VRBMT on upper extremity motor function, manual performance, and gross manual dexterity among stroke patients. The systematic search utilized Population, Intervention, Comparison, Outcome, and Design (PICOD) paradigm, and the study searched was based on 2012-2023, utilizing different databases. The meta-analysis data was evaluated using MedCalc version 18.11.3. The Pooled effect size mean was statistically examined using a fixed …
Beyond The Buzz: Do Energy Drinks Offer More Than Caffeine For Mental And Physical Tasks?, Flavia F. Pereira, Jose Antonio, Cassandra Evans, Jose Rojas, Jason M. Curtis
Beyond The Buzz: Do Energy Drinks Offer More Than Caffeine For Mental And Physical Tasks?, Flavia F. Pereira, Jose Antonio, Cassandra Evans, Jose Rojas, Jason M. Curtis
International Journal of Exercise Science
International Journal of Exercise Science 17(2): 1208-1218, 2024. Energy drinks are marketed for enhancing mental and physical performance, often containing ingredients beyond caffeine. This study investigated whether an energy drink (ED), Gorilla Mind, exerted greater effects on sustained attention, mood, handgrip strength, and push-up performance than a caffeine-matched control drink (CAF) in exercise-trained individuals (n = 21, age: 22 ± 5.9 years). In a randomized, counterbalanced, crossover design, participants first completed tests assessing mood (Profile of Mood States; POMS), sustained attention (Psychomotor Vigilance Test; PVT), handgrip strength (HG), and 1-minute maximum push-up performance (PU). They then consumed either an ED …
Effects Of Simulated Equestrian Therapy In Improving Motor Proficiency Among Down Syndrome Children- A Randomized Controlled Trial, Maha Siddiqui, Sumaira Imran Farooqui Prof.Dr, Jaza Rizvi Ms., Bashir Ahmed Soomro Dr., Muhammad Usman Khan Mr
Effects Of Simulated Equestrian Therapy In Improving Motor Proficiency Among Down Syndrome Children- A Randomized Controlled Trial, Maha Siddiqui, Sumaira Imran Farooqui Prof.Dr, Jaza Rizvi Ms., Bashir Ahmed Soomro Dr., Muhammad Usman Khan Mr
International Journal of Exercise Science
International Journal of Exercise Science 17(1): 1193-1207, 2024. The objective of this study was to investigate the effectiveness of Simulated Equestrian Therapy and Neuro-Motor Therapy in improving Motor Proficiency among Down syndrome children using a double-blinded Randomized Controlled Trial. This study was conducted at Dar-ul-Sukun Institute and Dr. Ziauddin Hospital from April to September 2023 by enrolling a total of 56 participants with Down syndrome (DS) after obtaining informed, voluntary assent from the guardians of the participants. Each participant was allocated randomly to the treatment group (n = 28) that received Simulated Equestrian Therapy (SET) and the control group …
Muscle Damage And Immune-Endocrine Responses In 20km Walking Race, Bruno Marques Fidelis, Julio C. Molina Correa, Martim G. Weber, Matheus G. Gois, Solange De Paula Ramos, Eduardo C F Tonani
Muscle Damage And Immune-Endocrine Responses In 20km Walking Race, Bruno Marques Fidelis, Julio C. Molina Correa, Martim G. Weber, Matheus G. Gois, Solange De Paula Ramos, Eduardo C F Tonani
International Journal of Exercise Science
International Journal of Exercise Science 17(7): 1167-1182, 2024. The objective of the study was to monitor exercise-induced muscle damage (EIMD), inflammatory responses (IL-6, TNFα, and IL-10), and immune-endocrine balance (testosterone, cortisol, and salivary SIgA) in official 20 km walking race competitions. Eight 20 km professional walking racers (n = 6 women), 27 ± 9 years, underwent blood and saliva sampling, evaluation of delayed-onset muscle soreness (DOMS), and squat (SJ) and countermovement (CMJ) jump tests 2 h before (Pre), immediately after (Post), and 24 and 48 h after the competition. The rate of perceived exertion (RPE) was recorded 20 minutes …
Reliability Of The Instrumented Modified Clinical Test Of Sensory Interaction On Balance Using A Virtual Balance Device, Sonia N. Young, Elizabeth S. Norris, Thomas Shifflett, Daniel Nisbet, Brady Saunders, Caleb Driver
Reliability Of The Instrumented Modified Clinical Test Of Sensory Interaction On Balance Using A Virtual Balance Device, Sonia N. Young, Elizabeth S. Norris, Thomas Shifflett, Daniel Nisbet, Brady Saunders, Caleb Driver
International Journal of Exercise Science
International Journal of Exercise Science 17(1): 1183-1192, 2024. The purpose of this study was to evaluate the test-retest reliability of the instrumented version of the modified Clinical Test of Sensory Interaction on Balance (i-mCTSIB) using the VirtuSense VirtuBalance System™ (VSTBalance), a virtual balance device, in healthy young adults. Fifty-four subjects aged 20–27 years (Mean age 23.07, SD ± 1.6), participated in the study. A one-group design was utilized. Three trials of the i-mCTSIB were performed on two separate days to measure the mean sway velocity of the trunk under four conditions. Within-day reliability of trials 1–3 was estimated with intraclass …
Sex- And Age-Specific Differences In Mice Fed A Ketogenic Diet, Kenyon W. Sprankle, Mya Knappenberger, Erica J. Locke, Jack Thompson, Madison Vinovrski, Kaylin Knapsack, Stephen C. Kolwicz Jr.
Sex- And Age-Specific Differences In Mice Fed A Ketogenic Diet, Kenyon W. Sprankle, Mya Knappenberger, Erica J. Locke, Jack Thompson, Madison Vinovrski, Kaylin Knapsack, Stephen C. Kolwicz Jr.
Health Sciences Faculty Publications
The ketogenic diet (KD) is a high-fat, low-carbohydrate diet that results in the elevation of serum ketone bodies, known as ketosis. This metabolic consequence has been suggested as a method for treating neurological conditions, improving exercise performance, and facilitating weight loss for overweight individuals. However, since most research primarily uses male populations, little is known about the potential sex differences during the consumption of the KD. In addition, the effects of the KD on aging are relatively unexplored. Therefore, the purpose of this study was to explore sex- and age-specific differences in mice fed the KD. Male and female C57BL/6N …
The Relationships Between Upper And Lower Extremity Muscle Strength, Rate Of Force Development, And Fatigue In Adults, Matthew Langford, Kyle J. Hackney, Sarah Andrew, Joshua Batesole, Maren Berntson, Kennedy Black, Tyler Hoang, Lukus Klawitter, William J. Kraemer, Ryan Mcgrath
The Relationships Between Upper And Lower Extremity Muscle Strength, Rate Of Force Development, And Fatigue In Adults, Matthew Langford, Kyle J. Hackney, Sarah Andrew, Joshua Batesole, Maren Berntson, Kennedy Black, Tyler Hoang, Lukus Klawitter, William J. Kraemer, Ryan Mcgrath
International Journal of Exercise Science
International Journal of Exercise Science 17(4): 1155-1166, 2024. Electronic handgrip dynamometry allows for multiple muscle function aspects to be feasibly measured, yet their relationship with lower extremity muscle function is unknown. We sought to determine the relationships between upper and lower extremity mechanical isometric muscle strength, rate of force development (RFD), and endurance by limb dominance in resistance trained adults. The analytic sample included 30 adults aged 32.1 ± 13.5 years. An electronic handgrip dynamometer ascertained upper extremity strength capacity, RFD, and endurance. Lower extremity strength, RFD, and endurance were collected with the isometric feature on an isokinetic knee dynamometer. …
Do Surrogate Markers Of Cardiorespiratory Fitness Predict Individual Changes In Vo2peak? A Randomized Controlled Trial, John R.M. Renwick, Nicholas Preobrazenski, Michael Del Giudice, Brendon J. Gurd
Do Surrogate Markers Of Cardiorespiratory Fitness Predict Individual Changes In Vo2peak? A Randomized Controlled Trial, John R.M. Renwick, Nicholas Preobrazenski, Michael Del Giudice, Brendon J. Gurd
International Journal of Exercise Science
International Journal of Exercise Science 17(4): 1134-1154, 2024. The purpose of the current study was to test the hypothesis that individual response classification for surrogate markers of cardiorespiratory fitness (CRF) will agree with response classification for VO2peak. Surrogate markers of CRF were time to fatigue on treadmill test (TTF), time trial performance (3kTT), resting heart rate (RHR), submaximal heart rate (SubmaxHR), and submaximal ratings of perceived exertion (SubmaxRPE). Twenty-five participants were randomized into a high-intensity interval training (HIIT: n = 14) group or non-exercise control group (CTL: n = 11). Training consisted of four weeks of high-intensity interval …
Comparison Of Olympic And Safety Squat Bar Barbells On Force, Velocity, And Rating Of Perceived Exertion During Acute High-Intensity Back Squats In Recreationally Trained Men, Noah Staheli, Jeffrey C. Cowley, Marcus M. Lawrence
Comparison Of Olympic And Safety Squat Bar Barbells On Force, Velocity, And Rating Of Perceived Exertion During Acute High-Intensity Back Squats In Recreationally Trained Men, Noah Staheli, Jeffrey C. Cowley, Marcus M. Lawrence
International Journal of Exercise Science
International Journal of Exercise Science 17(7): 1120-1133, 2024. This study examined using a traditional Olympic (OL) or safety squat bar (SSB) barbell on force, velocity, and perceived exertion during an acute session of high-intensity back squats in adults. Twelve recreationally trained men (23.0±2.6 years; 88.3±19.1 kg) randomly completed two sessions of 3 sets of 6 repetitions at the same absolute load using the OL barbell or SSB barbell. Force and velocity were measured on every repetition and rating of perceived exertion (RPE) was assessed for each set. A two-way ANOVA (set x barbell) with repeated measures and Sidak post-hoc test …
Therapeutic Importance Of Exercise In Neuroplasticity In Adults With Neurological Pathology: Systematic Review, Sara Valverde Cardoso, Sofia Rita Fernandes, Maria Teresa Tomás
Therapeutic Importance Of Exercise In Neuroplasticity In Adults With Neurological Pathology: Systematic Review, Sara Valverde Cardoso, Sofia Rita Fernandes, Maria Teresa Tomás
International Journal of Exercise Science
International Journal of Exercise Science 17(1): 1105-1119, 2024. Neuroplasticity is an essential mechanism by which the nervous system shapes and adapts according to functional requirements. Evidence suggests that physical exercise induces a cascade of cellular processes that favours brain plasticity. The Brain Derived Neurotrophic Factor (BDNF) is a neurotrophin closely linked to neuroplasticity that can be increased due to exercise. To verify the effects of therapeutic exercise on neuroplasticity and/or peripheral BDNF levels in neurological conditions in adults, such as stroke, Parkinson’s and Alzheimer’s diseases and mild cognitive impairment and address its clinical relevance in the treatment of neurological dysfunctions. …
The Prevalence Of Stress Fractures And The Associated Leaf-Q Responses, Self-Reported Exercise Volume And Dietary Behaviors In Female Recreational Runners, Malorie Wilwand, Kelly Pritchett, Marissa Miles, Robert Pritchett, Abigail Larson
The Prevalence Of Stress Fractures And The Associated Leaf-Q Responses, Self-Reported Exercise Volume And Dietary Behaviors In Female Recreational Runners, Malorie Wilwand, Kelly Pritchett, Marissa Miles, Robert Pritchett, Abigail Larson
International Journal of Exercise Science
International Journal of Exercise Science 17(2): 1092-1104, 2024. Previous research suggests a high prevalence of low energy availability (LEA) and stress fractures (SF) among competitive female endurance athletes. However, much less is known about these issues among recreational female runners. This study aimed to assess the prevalence and number of self-reported SF and risk of LEA among noncompetitive, recreationally active female runners, aged 18 – 25 years. Additionally, it compared characteristics between females with a history of multiple SF vs. one or no SF, and between those ‘at risk’ vs. ‘not at risk’ of LEA. Female recreational runners (n=485) completed …
The Cadet Athlete Physical Training Intervention (Capti): A 16-Week Periodized Program To Remediate Underdeveloped Tactical Athletes At A Senior Military College, Margaret T. Thornton, Amy S. Welch, Scott Caulfield, Rachele M. Pojednic
The Cadet Athlete Physical Training Intervention (Capti): A 16-Week Periodized Program To Remediate Underdeveloped Tactical Athletes At A Senior Military College, Margaret T. Thornton, Amy S. Welch, Scott Caulfield, Rachele M. Pojednic
International Journal of Exercise Science
International Journal of Exercise Science 17(4): 1083-1091, 2024. Approximately half of military recruits fail the Army Physical Fitness Test (APFT), and 70% of all injuries in the US military are musculoskeletal in nature. The purpose of this study was to investigate whether underdeveloped musculoskeletal and cardiovascular fitness levels and subsequent APFT scores of senior military college cadets could be improved by a novel, evidence-based Cadet Athlete Physical Training Intervention (CAPTI) compared to the current Remedial Physical Training program (RPT). Cadets failing the APFT (total score < 180, or < 60 in scored sit-ups, pushups or run time, respectively) participated in a 16-week remedial training program including either CAPTI (periodized full body calisthenic and varied-technique cardiovascular training, along with mobility training and mental health and wellbeing sessions), or a traditional, event-specific remedial training program (RPT). CAPTI was randomly assigned to one of three battalions, while the others received RPT. One hundred and thirty-eight cadets (n = 70 CAPTI, n = 68 RPT) participated in the study. After training, 82.9% …
Friend Social Network Size Moderates The Association Between Age And Physical Activity Across Adulthood, Ashley Kuzmik, Yin Liu, Yendelela Cuffee, Lan Kong, Christopher N. Sciamanna, Liza S. Rovniak
Friend Social Network Size Moderates The Association Between Age And Physical Activity Across Adulthood, Ashley Kuzmik, Yin Liu, Yendelela Cuffee, Lan Kong, Christopher N. Sciamanna, Liza S. Rovniak
International Journal of Exercise Science
International Journal of Exercise Science 17(5): 1068-1082, 2024. Both physical activity and social network size decline as people age. However, limited research has examined if social network size and contact frequency differentially influence physical activity across the adult lifespan. This study aimed to assess if these social network characteristics moderated the relationship between age and physical activity level across adulthood. Multiple regression analyses were conducted to examine the main-effect association between age, past-week physical activity, and past-year physical activity, as well as the moderating effect of social network characteristics (i.e., friend network size, friend contact frequency, relative network size, and …