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University of North Dakota

Muscles -- physiology

2003

Articles 1 - 2 of 2

Full-Text Articles in Medicine and Health Sciences

Emg Analysis Of Lower Extremity Muscle Activity During Wall Slides With Varying Foot Positions, Jon Beach, Neil Feist, Mike Hiscock, Ryan Stromme Jan 2003

Emg Analysis Of Lower Extremity Muscle Activity During Wall Slides With Varying Foot Positions, Jon Beach, Neil Feist, Mike Hiscock, Ryan Stromme

Physical Therapy Scholarly Projects

Knee injuries are among the most common injuries seen in a physical therapy clinic. Nearly all rehabilitation programs following a knee injury involve quadriceps muscle strengthening. One popular and safe method of quadriceps strengthening often used is the wall slide. There is, however, debate and little research indicating whether or not changing the foot position used during wall slides alters the muscle activity during this exercise.

The purpose of this study was to provide a better understanding of the muscle activity during wall slides with feet in various positions so that more accurate rehabilitation protocols may be developed in the …


Electromyographic And Motion Analysis Of The Trunk And Lower Extremity Muscle Recruitment Comparing A Maximal Voluntary Contraction To The Plyo Press And Agaton Max Series Leg Press, Lee Nagle, Thayne Bosh, Tonya Kunze, Kelly Jorschumb Jan 2003

Electromyographic And Motion Analysis Of The Trunk And Lower Extremity Muscle Recruitment Comparing A Maximal Voluntary Contraction To The Plyo Press And Agaton Max Series Leg Press, Lee Nagle, Thayne Bosh, Tonya Kunze, Kelly Jorschumb

Physical Therapy Scholarly Projects

Numerous studies have been done on the Plyo Press, with focus on the concentric phase of the exercise. However, for athletes eccentric training has always been a topic of interest. Most leg press machines have a concentric and an eccentric phase involved with the exercise. However, during the eccentric phase of the leg press the muscles are underloaded because of the force-velocity relationship of the human skeletal muscle and the fact that eccentric contractions require fewer motor units for the same force and workload. This means that the leg press exercise is limited by the concentric phase. A new machine …