TY  - THES
T1  - Influences of flexibility and resistance training on functional parameters of hamstring and hip flexor muscles
A1  - Shafizadeh,Mohammad Mehdi
Y1  - 2008/05/02
N2  - The purpose of this study was to examine the effects of specific training programs on the peak torque (PT), functional (optimal) length, peak passive tension-stretching, sub-maximal tension-stretching of hamstring muscles and range of motion (ROM) of the hip joint. A total of 54 sports students (age=22.3 ± 2.4 years)  were tested before and after 4 different interventions conducted three times per week for 6 weeks: (a) flexibility training only, (b) resistance training only, (c) flexibility combined with resistance training, and (d) no intervention (Control).
The results indicated that peak torque, functional length and the sub-maximal tension-stretching of the hamstring did not differ in any of the groups. The peak passive tension-stretching increased significantly in flexibility (33.6 %) and flexibility combined with resistance training (37.5 %) groups (p<0.01). The ROM increased in flexibility (8.2 %) and flexibility combined with resistance training groups (11.1 %) (p<0.01). 
In a complementary study, the effects of resistance training (inclined sit-ups) on the peak torque and functional optimal length (hip joint angle specificity) of hip flexor muscles was investigated. The subjects (n=21, age=22.9 ± 1.7 years) were measured before and after 6 weeks (three times per week) for inclined sit-ups training program. The results indicated that peak torque and functional length of hip flexor muscles did not differ.
It is possible that 6 weeks resistance training program for our subjects that were all physical education students was an insufficient amount of training stimulus to produce a training effect.
These findings indicate that specific training programs do not influence the functional length and sub-maximal tension of muscle over a six-week training period. Sub-maximal tension-stretching and optimal length of muscle remains unchanged and the increase of ROM and peak tension-stretching at the same time could have been caused by the subjects'; tolerance to higher stretching.
KW  - Dehnübung
KW  - Muskeldehnung
KW  - Trainingsprogramm
KW  - Krafttraining
KW  - Flexibilität
KW  - Hüftgelenk
CY  - Saarbrücken
PB  - Universitäts- und Landesbibliothek
AD  - Postfach 151141, 66041 Saarbrücken
UR  - http://scidok.sulb.uni-saarland.de/volltexte/2008/1536
ER  -