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The Effects of Three Time Periods (5, 10 And 15 Seconds) Of Isometric Contraction in PNF Method on Range of Hamstring Stretch in Male Non-Athletes

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(4 صفحه - از 267 تا 270)

خلاصه ماشینی:

"c om ISSN (Online): 2322 – 4479 The Effects of Three Time Periods (5, 10 And 15 Seconds) Of Isometric Contraction in PNF Method on Range of Hamstring Stretch in Male Non-Athletes BEHZAD KIA∗ Department of Physical Education and Sport Science, Soushtar Branch, Islamic Azad University, Soushtar, Iran. INTRODUCTION It is reported that the effects of three time periods of 5, 10, and 15 seconds (1) of maximum voluntary isometric contraction (MVIC) (2) in the slow-reversal-holdrelax stretching technique. So, The purpose of this study was to investigative the effects of three time periods of 5, 10, and 15 seconds of maximum voluntary isometric contraction on hamstring flexibility in male non- athletes. At the end of training period, rate of hamstring stretch was measured using SLR test. Data were analyzed using dependent t-test and one-way ANOVA RESULTS It is observed that significant increases in hamstring flexibility for three groups."

صفحه: از 267 تا 270
267 Annals of Applied Sport Science , Spring 2015, Volume 3 - Number 9

268 Annals of Applied Sport Science , Spring 2015, Volume 3 - Number 9

with three repetitions per set and three sessions per week for‌ 6 week‌. The‌ training increased to three sets with three repetitions‌ at‌ the end of the program. At the end of training period, rate of hamstring stretch was measured using SLR‌ test‌. Data‌ were analyzed using dependent t-test and one-way ANOVA

RESULTS‌

It is observed that significant increases in hamstring flexibility for three groups. However, no significant difference between groups‌ was‌ found‌ (P_0.05). Conclusions: according to the findings of the present study it‌ could‌ be concluded that a longer MVIC time dose not lead to a greater increase in flexibility.

Figure 1. Stretch‌ hamstring‌ muscles‌ in comparison the experimental

domain. Significant differences compared to the earlier sign‌ test‌.

Table‌ 1. Changes of Some data of pre-test to post test, average and percentage differences‌ in‌ the‌ experimental group 1, 2 and 3.

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CONCLUSION

In conclusion, according to the‌ findings‌ of the present study it could be concluded that a longer

MVIC time (3) does‌ not‌ lead‌ to a greater increase in flexibility (5).

269 Annals of Applied Sport Science , Spring 2015, Volume 3 - Number 9

270 Annals of Applied Sport Science , Spring 2015, Volume 3 - Number 9