Adam Korak

University of St. Thomas - Minnesota | st thomas · Health and Exercise Science

The biceps femoris (BF) is a double-jointed muscle that performs both hip extension and knee flexion, making it a challenging muscle to train during common resistance training movements. An imbalance between the posterior and anterior chain increases the risk of lower-extremity injury. The purpose of this study was to compare BF proximal (BFprox),...

Falls are linked to gait and balance inconsistencies influenced by a combination of variables including muscle strength and power. Multicomponent athlete training models that incorporate high-intensity challenging activities have been shown to significantly improve strength, power, and balance. This study evaluated the efficacy of a short-term mult...

International Journal of Exercise Science 13(1): 1098-1107, 2020. Currently, no gold standard electromyography (EMG) normalizing technique exists when conducting between-muscle comparisons of muscle activity during isotonic resistance training exercises. The aim of this study was to assess if between-muscle activation during the back-squat differed...

Falls are commonly linked to gait and balance inconsistencies, influenced by a combination of variables including muscle strength and power. For years, short-term higher intensity multicomponent dynamic training methods have been used to improve athletic performance in younger populations; significantly affecting variables including muscular streng...

Falls are the leading cause of fatal injury and the most common cause of nonfatal trauma-related hospital admissions among older adults. The most consistently proven predictors of fall risk are the result of gait and balance inconsistencies. A decrease in balance and increase fall likelihood have been shown to be associated with aging and the loss...

Self-myofascial release (SMR) is an alternative therapy believed to increase myofascial mobility by exciting muscles and increasing blood flow to the treated area. Previous literature suggest SMR produces conflicting results on performance, muscle activation, range of motion (ROM), and recovery. This study was designed to utilize SMR on a fatigued...

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...

Bruininks BD, Korak JA, Scibora LM, Sage SK, Mellick PF. Swimming and Bone Density: A DXA and pQCT Study Examining Swimming as an Osteogenic Activity. JEPonline 2019;22(1):75-91. Some research has suggested non-weight bearing sports could be potentially harmful to skeletal development. Thus, there is concern for athletes regularly exposed to hypo-g...

Bruininks BD, Korak JA, Scibora LM, Sage SK, Mellick PF. Swimming and Bone Density: A DXA and pQCT Study Examining Swimming as an Osteogenic Activity. JEPonline 2019;22(1):75-91. Some research has suggested non-weight bearing sports could be potentially harmful to skeletal development. Thus, there is concern for athletes regularly exposed to hypo-g...

Bruininks BD, Korak JA, Scibora LM, Sage SK, Mellick PF. Swimming and Bone Density: A DXA and pQCT Study Examining Swimming as an Osteogenic Activity. JEPonline 2019;22(1):75-91. Some research has suggested non-weight bearing sports could be potentially harmful to skeletal development. Thus, there is concern for athletes regularly exposed to hypo-g...

The deadlift and back and front squats are common multijoint, lower-body resistance exercises that target similar musculature. To our knowledge, muscle activity measured using surface electromyography has never been analyzed among these 3 exercises. Furthermore, most literature examining this topic has included male participants creating a void in...

Purpose: Rest-pause (4 s unloaded rest between repetitions) single session training effects on lifting volume, and muscle activity via electromyography (EMG) are currently vague in the literature and can benefit strength and conditioning professionals for resistance training program design. This study compared differences in volume lifted and musc...

The deadlift and back and front squats are common multi-joint, lower body resistance exercises that target similar musculature. To our knowledge, muscle activity measured via surface electromyography (EMG) has never been analyzed among these three exercises. Furthermore, most literature examining this topic has included male participants creating a...

Purpose: Rest-pause (4-s unloaded rest between repetitions) training effects on one repetition maximum (1 RM), lifting volume, and neural activation via electromyography (EMG) are currently vague in the literature and can benefit strength and conditioning professionals for resistance training programme design. Therefore, this study compared 1 RM,...

International Journal of Exercise Science 8(1) : 85-96, 2015. This study examined muscle recovery patterns between single-joint (SJ) versus multi-joint (MJ), and upper-body (UB) versus lower-body (LB) exercises and the utility of perceptual measures (ratings of perceived exertion (RPE) and perceived recovery scale (PRS)) to assess recovery status....