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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)

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"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

‌ ‌‌‌ANNALS‌ OF APPLIED SPORT SCIENCE–Special Issue

First National Congress of

"New Scientific Consequence‌ for‌ Iran‌’s Sport Development" Lahijan Branch, Islamic Azad University, 2014, 10-11 December

w w w . aas s j our nal. 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.

METHODS

Thirty nonathlete male student‌ of‌ azad univercity of 6 locale ir.iran,(Mean±SD; age, 20±2.1years; body mass, 68±6.3 kg; height, 171±5.1 cm) were randomly assigned to one of the three training groups: 5s‌-MVIC‌, 10s-MVIC, and 15s-MVIC. Measurements of hamstring stretch were performed at the beginning and at the end of six weeks of training by researcher using a goniometer and SLR‌ test‌. Training‌ program included one set of‌ stretch‌ training‌ (SRHR-PNF)

∗ - Corresponding Author:

Behzad kia

E-mail: kiabehzad1973@gmail.com

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

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

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