Performing weighted leg curls= Dysfunction

It should be noted that training the hamstring muscles which are the muscles at the back of your thigh with weight curling in lying, seated, or standing position is not the answer for you. These actions can create major dysfunctions as as Evan Osar depicts in his book 'Complete Hip and Lower Extremity Conditioning'.

Some of the reasons for this are:

1. Literally, the body is in an upright position in all activities of daily living and athletic training. Enabling the body to be upright and move into the 3 planes of motion can decrease proprioception in all the muscles, especially pelvis, hips, knees, and ankles.
2. Performing leg curls on machines, the eccentric strength (lowering the weight towards the ground) is minimal, which can create an injury because an assymetry exists because the concetric strength (lifting the weight up) is extremely big compare with the eccentric strength.
3. The lying hamstring curl machine can be used only for teaching neutral spine while lengthening the quad muscle. Loading the machine with a lot of weigh can create your back to arch resulting an injury.
4. Gluteus maximus, 'the major ass muscle', stops firing proberly causing an increase in the hamstrings resting tone. This action can surely cause an injury because before any dynanic movement the neuromuscular system first controls posture before any movement.
5. Alterations of pelvic alignment can cause length and tension ratio changes of the hamstrings again resulting in an injury.

THE TAKE HOME MESSAGE.....DO NOT WEIGHT CURL YOUR HAMSTRINGS IN A LYING, SEATED, OR UPRIGHT POSITION.

I'm out............