להלן מחקר בנושא מתיחות לפני/אחרי אימון

[shikoLM]

משה אני מקבל הודעה על קובץ פגום כשאני מנסה לפתוח את הקישור.
בנוגע לסיכום שהעלת להבנתי לא מדובר במחקר אלא בסוג של סקירה. אמנם נכון שמתיחות דינמיות מורידות "מהנוקשות" של הגידים (מה שיכול להשפיע על הביצועים אבל זה נושא אחר) אבל לא יצא לי להיתקל במחקר שהראה קשר ישר בין העניין המדובר למניעת פציעות.
אם יש בסקירה קישור למחקר שכזה אשמח אם תעלה אותו.

Effect of static and ballistic stretching on the muscle-tendon tissue properties.

Mahieu NN, McNair P, De Muynck M, Stevens V, Blanckaert I, Smits N, Witvrouw E.
Department of Rehabilitation Sciences and Physiotherapy; Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium. Nele.Mahieu@UGent.be
PURPOSE: Many studies have been undertaken to define the effects of static and ballistic stretching. However, most researchers have focused their attention on joint range-of-motion measures. The objective of the present study was to investigate whether static- and ballistic-stretching programs had different effects on passive resistive torque measured during isokinetic passive motion of the ankle joint and tendon stiffness measured by ultrasound imaging. METHODS: Eighty-one healthy subjects were randomized into three groups: a static-stretch group, a ballistic-stretch group, and a control group. Both stretching groups performed a 6-wk stretching program for the calf muscles. Before and after this period, all subjects were evaluated for ankle range of motion, passive resistive torque of the plantar flexors, and the stiffness of the Achilles tendon. RESULTS: The results of the study reveal that the dorsiflexion range of motion was increased significantly in all groups. Static stretching resulted in a significant decrease of the passive resistive torque, but there was no change in Achilles tendon stiffness. In contrast, ballistic stretching had no significant effect on the passive resistive torque of the plantar flexors. However, a significant decrease in stiffness of the Achilles tendon was observed in the ballistic-stretch group. CONCLUSION: These findings provide evidence that static and ballistic stretching have different effects on passive resistive torque and tendon stiffness, and both types of stretching should be considered for training and rehabilitation programs.
PMID: 17473776 [PubMed - indexed for MEDLINE]