Research


Research in the San Juan Lab (Applied Biomechanics Lab) focuses on injury prevention and rehabilitation of common musculoskeletal injuries in the upper and lower extremities. We focus on examining muscle activation patterns, scapular and hip kinematics during dynamic motions. We utilize state of the art research equipment to test our hypothesis. Our lab is located in the Biomechanics Lab in the Carver Academic Facility (CV 303-304). Current and Past research includes:

Current Research


 

The specific aim of this research study is to test the validity and reliability of the iPod touch in measuring absolute error in knee joint position sense compared to a gold standard (i.e. camera based kinematics). We hypothesize that the iPod touch will produce an excellent reproducibility in measuring absolute joint position sense error.

The aim of this study is to examine the effects of a 6-weeks EMG biofeedback intervention training in shoulder impingement patients on muscle activation patterns and scapular kinematics. Increase muscle activation of the upper trapezius compared to the lower trapezius and serratus anterior could lead to changes in normal scapular kinematics. This changes can result in shoulder pain because of a decreased subacromial space. If left untreated, it can lead to a more debilitating shoulder injury such as rotator cuff tear.

The aim of this study is to measure joint position sense before and after total knee replacement. We will be utilizing an innovative approach in measuring the ability of the patient to actively replicate a given joint position using a customized application on an iPod Touch.

The goal of this current experiment is to find out if there is a change in latency and amplitude of motor evoked potential (MEP) at the infraspinatus muscle when comparing pre- and post-fatigue conditions. We hypothesized that there will be a significant increase the MEP latency and amplitude after muscle fatigue.

 

 

Past Research


 

The purpose of this study was to compare the two directions of motion on a modified elliptical with converging footpath and shorter pedal distance. Additionally, the studies purpose was to evaluate the potential effects of reverse direction movement has on human movement while exercising on an elliptical.

The purpose of this study was to examine the effects of a multi-ingredient performance supplement comprised of electrolytes and creatine on the performance of individuals who are regularly strength training. The primary purpose of the study was to examine the potential benefits of the multi-ingredient performance supplement (MIPS) supplementation on power and strength performance outcomes during an akimbo countermovement jump, and the back squat, and bench press exercises. The study was aimed at examining the implications for performance enhancement in an active population that would benefit or would potentially use supplementation for enhancement.

The purpose of this study was to demonstrate the relationship between the anterior trunk and the lower extremities, specifically helping to identify additional risk factors for anterior cruciate ligament injury.

The purpose of this study was to compare the Precor EFX elliptical model to a modified elliptical with a converging foot path and decreased space between pedals.

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