I think there's a few things wrong with the article and the premise of the argument.
First, and I have to add a caveat because I don't know what their "100-point scale" consists of. The article does not differentiate any scores between stretching before training as opposed to stretching after training, the type of stretching performed, whether the subjects were adequately warm when stretching beforehand, the stretching routine, etc.
My points:
- I personally rarely see people stretching before exercise who have warmed up adequately before doing so - they have breathed a little, lifted their knees a few times, bounced a couple times, swung their arms and then started stretching. This is not adequate "warmth" for the body to stretch - a person should be damp from effort and have no cool areas to the body. Toes should be warm, fingers warm, face warm, scalp warm, ears and nose warm - everything should be warm and damp from effort before stretching.
- It should be understood that any stretching before the training portion of a work-out session is for maintaining range of motion, pure and simple - you generally will not gain flexibility at this point, rather keep your range of motion open and free, perhaps warm up those last few small muscles, ligaments, tendons and keep the joint juices flowing.
- Static stretching should be done post-warm up and pre-training such that there is NO BOUNCING, no pulsing. Many people do this or retreat from their stretch to stretch again. A static stretch should be approached to 90% gradually, held for at least 30 seconds for maintenance, then gradually and completely released. Second stretch to 95%, final stretch to 100%.
- Many people stretch a hamstring once and call it stretching. That's not stretching - that's posturing and a completely different approach to the muscles and flexibility.
- Dynamic stretching has been proven to increase flexibility yet should only be done post-training or after an extensive warming routine. Dynamic stretching should also be done every other day, just like weight training. These types of stretches, for increasing flexibiliy, should be held for a minimum of 10 seconds and followed by a static stretch for 20 seconds minimum.
- "Stiffness" is a relative term like "pain." To me, the criteria should be one's range of motion at time intervals after the training session and should be considered with muscle swelling, tissue gaining, overuse injury and strain.
Static stretching should be used to test and maintain passive range of motion in the joints and can be a great indicator of unhealthy strength ratios which can definately bring about injury.
Dynamic stretching should be used to increase flexibility and immediately followed by passive stretching.
Using both of these tools at their proper times with proper circulation and in proper proportion, your training routine can be altered to suit YOUR individual needs which can only aid to better ratios, better range of motion, more revealing evaluations.
"Stiffness" is, I think, a term used for muscles which are fatigued, a little swollen, a little resistant to use during the resting portion of your life. Getting *properly* warm and using static, passive stretching certainly can't hurt unless you're already hurt.
So in general ... no, I don't agree with the article as written.