Publications by authors named "Jordan Ankersen"
Sidelying hip abduction (SHA) is a common exercise utilized in rehabilitation to strengthen the gluteus medius (GMed). Alterations in the exercise can produce different patterns of muscular activity. No studies have examined the effect of mechanical pelvic stabilization during SHA.
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- Blood flow restriction (BFR) training is gaining popularity, but the specific effects of different levels of limb occlusion on shoulder muscle activity are not fully understood.
- A study with 15 participants tested how varying occlusion levels (0%, 25%, 50%, and 75% LOP) during low-intensity shoulder exercises affected muscle electrical activity, with findings suggesting that muscle engagement increased with occlusion but plateaued above 50%.
- Results indicated significant increases in muscle activity (EMGa) for rotator cuff exercises at higher occlusion percentages, with specific muscles like the anterior deltoid and trapezius showing heightened activity at lower occlusion levels (≥25% LOP) and diminishing
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- The study investigates how combining blood flow restriction (BFR) and low-load resistance exercise (LIX) can enhance shoulder muscle development and strength in collegiate baseball pitchers.
- The research involves 28 pitchers split into two groups: one using BFR during training and the other performing standard training without BFR.
- Results showed that the BFR group had significantly greater increases in shoulder muscle mass and strength compared to the non-BFR group after an 8-week training period.
Ultrasonic Bone Assessment: Ability of Apparent Backscatter Techniques to Detect Changes in the Microstructure of Human Cancellous Bone.
IEEE Trans Ultrason Ferroelectr Freq Control
November 2021
Ultrasonic backscatter techniques may offer a useful approach for detecting changes in bone caused by osteoporosis. The goal of this study was to investigate how bone mineral density (BMD) and the microstructure of human cancellous bone affect three ultrasonic backscatter parameters that have been identified as potentially useful for ultrasonic bone assessment purposes: the apparent integrated backscatter (AIB), the frequency slope of apparent backscatter (FSAB), and the frequency intercept of apparent backscatter (FIAB). Ultrasonic measurements were performed with a 3.
View Article and Find Full Text PDFUltrasonic backscatter techniques are being developed to detect changes in cancellous bone caused by osteoporosis. One technique, called the backscatter difference technique, measures the power difference between two portions of a backscatter signal. The goal of the present study is to investigate how bone mineral density (BMD) and the microstructure of human cancellous bone influence four backscatter difference parameters: the normalized mean of the backscatter difference (nMBD) spectrum, the normalized slope of the backscatter difference spectrum, the normalized intercept of the backscatter difference spectrum, and the normalized backscatter amplitude ratio (nBAR).
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