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Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

2019

Kinesiology

Biomechanics and Neural Control

Articles 1 - 9 of 9

Full-Text Articles in Life Sciences

The Effect Of Barefoot Running On Emg Activity In The Gastrocnemius And Tibialis Anterior In Active College-Aged Females, Ryan Beierle, Phoebe Burton, Hayden Smith, Michael Smith, Stephen J. Ives Sep 2019

The Effect Of Barefoot Running On Emg Activity In The Gastrocnemius And Tibialis Anterior In Active College-Aged Females, Ryan Beierle, Phoebe Burton, Hayden Smith, Michael Smith, Stephen J. Ives

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 1110-1120, 2019. Running is one of the most popular forms of exercise, thus overuse injuries such as plantar fasciitis, shin splints, and tibial stress fractures are also common. Barefoot/forefoot running has shown promise to reduce overuse injuries by decreasing the impact upon contact with the ground. The arch of the foot utilizes a ‘spring’ system that simultaneously reduces impact and propels the stride forward. Increased muscle activity in a particular location is indicative of greater impact forces, suggesting a larger risk for overuse injuries. The current study investigated the role of the ...


Comparison Of Single Leg Squat Variations On Lower Limb Muscle Activation And Center Of Pressure Alterations, Mary Grace Knoll, Mackenzie C. Davidge, Claire E. Wraspir, John A. Korak Jun 2019

Comparison Of Single Leg Squat Variations On Lower Limb Muscle Activation And Center Of Pressure Alterations, Mary Grace Knoll, Mackenzie C. Davidge, Claire E. Wraspir, John A. Korak

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 950-959, 2019. Following anterior cruciate ligament reconstruction, individuals experience inadequate functioning of the quadriceps and decreased muscular strength. Decreased function delays return to physical activity and increases potential for re-injury. While several squat variations exist, a new variation has emerged in rehabilitation. The purpose of this study was to compare muscle activation of the Vastus Lateralis (VL), Vastus Medialis (VM), Rectus Femoris (RF), Gluteus Maximus (GM), and anterior posterior center of pressure (AP displacement) alterations during a single leg squat variation (SLS variation) versus a traditional split squat using electromyography (EMG) in healthy ...


Measurement Of Strength Gains Using A Fascial System Exercise Program, Michele M. Bond, Richard Lloyd, Robyn A. Braun, James A. Eldridge May 2019

Measurement Of Strength Gains Using A Fascial System Exercise Program, Michele M. Bond, Richard Lloyd, Robyn A. Braun, James A. Eldridge

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 825-838, 2019. Current fascia research is allowing for an interdisciplinary understanding of the body’s anatomical, biomechanical, and neurological connectivity via the fascial network. Fascial research and its application has been validated and established in various clinical areas of research. The purpose of this study was to apply the current knowledge of the fascial system to general exercise protocols. This study involved 20 women, ages 30-60 years, who were novice weight trainers, mostly sedentary, and with no injuries, excessive pain or disease. The 10-week study compared strength gain changes between a strength training ...


Trunk Muscle Activation During Dynamic Sling Training Exercises, Tobias Morat, Denis Holzer, Rieke Trumpf Apr 2019

Trunk Muscle Activation During Dynamic Sling Training Exercises, Tobias Morat, Denis Holzer, Rieke Trumpf

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 590-601, 2019. The purpose of this study was to examine the level of trunk muscle activation to characterize different dynamic sling training exercises. Thirty-six young adults (25±3 years, 1.78±0.1 m, 71.5±10.4 kg) performed six different sling training exercises while muscle activation of eight different trunk muscles was measured unilaterally by surface electrodes. Four of the exercises were conducted at two different difficulty levels (an easy and a hard version) by changing the body angle. The six sling training exercises differed regarding muscle activation, with significant differences ...


The Effect Of Cold-Water Immersion On Running Mechanics, Lucas M. Dibenedetto, Kristyne Wiegand, Julia Freedman Silvernail Mar 2019

The Effect Of Cold-Water Immersion On Running Mechanics, Lucas M. Dibenedetto, Kristyne Wiegand, Julia Freedman Silvernail

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 547-555, 2019. Cryotherapy is a common treatment used by athletes for rehabilitating acute injuries of a joint or muscle in order to accelerate recovery time and promptly return to play. Therefore, the potential effects of cryotherapy on performance and injury risk should be considered. The purpose of the current study was to investigate the effects of cold-water immersion on running mechanics. Fifteen healthy male and female participants (24.6 ± 5.74 years, 166.37 ± 7.67 cm, 71.72 ± 17.7 kg, 27.47 ± 7.55% body fat) were recruited for the study ...


Reductions In Kinematics From Brassieres With Varying Breast Support, Taylor M. Gibson, Nilanthy Balendra, Ksenia I. Ustinova, Joseph Langenderfer Feb 2019

Reductions In Kinematics From Brassieres With Varying Breast Support, Taylor M. Gibson, Nilanthy Balendra, Ksenia I. Ustinova, Joseph Langenderfer

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 402-411, 2019. Given the abundance of brassieres, manufacturers, and investigations of bras, it remains unclear whether the continued development of bras will provide many additional improvements in support. This study measured performance of sport bras including 4 popular bras and a new style bra at reducing breast motion during five common exercises. Bras demonstrated varying effectiveness and consistency across exercises at reducing undesirable breast motion, (hereafter referred to as kinematics). The new style bra significantly reduced vertical breast displacement and acceleration more consistently than other bras. When significant differences between bras were detected ...


The Effect Of Foam Rolling Of The Hamstrings On Proprioception At The Knee And Hip Joints, Erin David, Tal Amasay, Kathryn Ludwig, Sue Shapiro Feb 2019

The Effect Of Foam Rolling Of The Hamstrings On Proprioception At The Knee And Hip Joints, Erin David, Tal Amasay, Kathryn Ludwig, Sue Shapiro

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 343-354, 2019. The purpose of this study was to determine the acute effect of hamstring foam rolling on proprioception at the knee and hip joints. Twenty-five participants completed two proprioceptive tests on separate days, in a random order. The joint position matching test used no visual feedback. Participants were verbally guided to a target lunge position, which was maintained for six seconds while right hip and knee angles were recorded. After rest, participants reproduced this position without guidance for six seconds. Three trials were completed at baseline, and zero, 10, and 20 minutes ...


The Effects Of Ankle Braces On Lower Extremity Electromyography And Performance During Vertical Jumping: A Pilot Study, Zachariah J. Henderson Mr., Paolo Sanzo, Carlos Zerpa, Derek Kivi Jan 2019

The Effects Of Ankle Braces On Lower Extremity Electromyography And Performance During Vertical Jumping: A Pilot Study, Zachariah J. Henderson Mr., Paolo Sanzo, Carlos Zerpa, Derek Kivi

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 15-23, 2019. Ankle braces have been hypothesized to prevent ankle injuries by restricting range of motion (ROM) and improving proprioception at the ankle. As such, ankle braces are commonly worn by physically active individuals to prevent ankle injuries. Despite their widespread use, the effects that ankle braces have on athletic performance measures, such as vertical jumping, remains unclear. Furthermore, although ankle braces are known to restrict normal ROM at the ankle, little is known about the effects that ankle braces have on the lower extremity proximal to the ankle, specifically muscular activation. Therefore ...


Chronic Ankle Instability Leads To Lower Extremity Kinematic Changes During Landing Tasks: A Systematic Review, Aaron Theisen, James Day Jan 2019

Chronic Ankle Instability Leads To Lower Extremity Kinematic Changes During Landing Tasks: A Systematic Review, Aaron Theisen, James Day

International Journal of Exercise Science

International Journal of Exercise Science 12(1): 24-33, 2019. Ankle and knee injuries are two of the most common injuries. It has been shown that ankle sprains can lead to chronic ankle instability thereby affecting the function of the ankle. Since the lower extremity is a kinetic chain anything that affects the ankle is thought to affect the knee and hip as well. Changes in lower extremity function associated with chronic ankle instability may predispose patients for non-contact ACL injuries. The purpose of this study was to provide a systematic review of the research done on chronic ankle instability (CAI ...