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The acute influence of static and ballistic stretching on the biomechanics and muscle activity associated with the hamstring stretch /Snyder, Alison Rose. January 2004 (has links)
Thesis (Ph.D.)--University of Toledo, 2004. / Typescript. "A dissertation [submitted] as partial fulfillment of the requirements of the Doctor of Philosophy degree in Exercise Science." Bibliography: leaves 72-77.
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The effects of static stretching on vertical jump performanceEvans, Tom. January 2006 (has links)
Theses (M.S.)--Marshall University, 2006. / Title from document title page. Includes abstract. Document formatted into pages: contains iv, 43 p. Bibliography: p. 28-30.
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The neuromuscular effects of a long-term static stretching program on the human soleusHayes, Bradley T. 26 July 2005 (has links)
The purpose of this research was to evaluate the effects of a long-term
static stretching program on flexibility and spinal reflexes in the
human soleus muscle. Day-to-day reliability over two days of H-reflex gain
(Hslp/Mslp) and pre-synaptic inhibition of spinal reflexes in the human
soleus was measured in an initial study. Thirty subjects (age=23.4 ± 3.9
yr, height=175.64 ± 10.87 cm, weight=84.5 ± 24.18 kg) with no history of
lower leg pathology and/or injury within the previous 12 months
volunteered. The slopes of the ascending portions of the H-reflex and M-wave
recruitment curves were used to evaluate H-reflex gain (Hslp/Mslp).
The mean soleus H-reflex from 10 conditioning stimulations and 10
unconditioned stimulations was used to calculate the amount of pre-synaptic
inhibition. Measurements of H-reflex gain and pre-synaptic
inhibition yielded test-retest reliability of R=.95 and R=.91, respectively.
The contribution of pre-synaptic and post-synaptic reciprocal
mechanisms in flexibility adaptations has not been measured during the
same study. A long-term static stretching program (5 times per week for 6
weeks) of the soleus implemented within an experimental group of 20
subjects was used as an intervention to measure both spinal control
flexibility changes. Additionally, 20 control subjects were measured that
did not participate in the stretching program. Passive ankle dorsiflexion,
Hmax/Mmax, H-reflex gain (Hslp/Mslp), pre-synaptic and post-synaptic
reciprocal mechanisms were measured at baseline, 3 weeks, and 6 weeks
for all 40 subjects. A 2 (Group) X 2 (Sex) X 3 (Time) mixed MANOVA with
Tukey HSD with (a<0.05) was used. Only ROM had a significant
interaction between Group and Time, whereas, a significant difference was
not detected in the other dependent variables. The experimental group
demonstrated significantly improved dorsiflexion ROM from baseline to 3
weeks (mean=6.2 ± .88, P<0.001), 3 weeks to 6 weeks (mean=4.9 ±
.84, P<0.001), and baseline to 6 weeks (mean=11.2 ± .91, P<0.001).
Consequently, the increase in flexibility by 42% after 30 stretching
sessions was not the result of spinal reflex changes. / Graduation date: 2006
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A comparison of the effects of stretch duration and repetitions on hamstring extensibilityMende, Gent N. 22 August 1996 (has links)
The increase in tissue extensibility and joint range of motion through stretching has often been demonstrated. However, the existence of an optimal stretch duration has not been proven and the identification of an ideal number of repetitions of a stretch has received little attention in the literature. The purpose of this study was to examine and clarify the relationship of duration and number of repetitions of a stretch and their effect on changes in hamstring extensibility (HE) resulting from a stretching program. The HE of 33 subjects who were randomly assigned to a control group or one of three treatment groups was assessed before and after a three-week stretching program. The subjects in the three treatment groups stretched once a day, five times a week, and either once for 15 seconds (1 X 15), twice for 15 seconds (2 X 15), or once for 30 seconds (1 X 30).
A repeated measures ANOVA showed no statistically significant effect for treatment group (P=0.181) or for treatment by pre- and post-treatment measurements (P=0.140), but indicated a significant difference between pre- and post-treatment measurements (P<0.001). The HE of the control group (which did not stretch) changed only slightly (0.9��, SD 5.7), the 1 X 15 and 1 X 30 groups improved more clearly (4.2��, SD 3.1 and 3.8��, SD 6.7, respectively), and the 2 X 15 group's HE increased the most (6.8��, SD 3.9). The results suggest that varying durations and repetitions of a stretch may influence the magnitude of improvement of HE. However, with the relatively low power (0.46) in the present study, no statistically significant difference between stretching protocols of 1 X 15 seconds, 2 X 15 seconds, and 1 X 30 seconds could be found. / Graduation date: 1997
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Lösung inverser Problemstellungen in der Biomechanik : am Beispiel von Beinstreckbewegungen /Roemer, Karen. January 2006 (has links)
Techn. Univ., Diss.--Chemnitz, 2004. / Literaturverz. S. 141 - 151.
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Horizontal adduction and prone internal rotation stretches are not effective interventions for acutely increasing posterior shoulder mobility of professional baseball playersHartman, Anna J. January 2004 (has links)
Thesis (M.S.)--A.T. Still University, 2004. / Includes bibliographical references. Also available online (PDF file) by a subscription to the set or by purchasing the individual file.
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Active isolated stretching an investigation of the mechanical mechanisms /Longo, Alison. January 1900 (has links)
Thesis (M.S.)--Brock University, 2009. / Includes bibliographical references (leaves 76-81).
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A comparison of myofascial release and static stretching on active range of motion and muscle activityMcClellan, Emily C. January 2003 (has links)
Thesis (M.A.)--University of North Carolina at Chapel Hill, 2003. / Includes bibliographical references (leaves 112-114).
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Horizontal adduction and prone internal rotation stretches are not effective interventions for acutely increasing posterior shoulder mobility of professional baseball playersHartman, Anna J. January 2004 (has links)
Thesis (M.S.)--A.T. Still University, 2004. / Includes bibliographical references.
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The effects of massage on hamstring flexibilityVennard, Kimberly J., January 2005 (has links)
Thesis (M.A.)--Sam Houston State University, 2005. / Includes bibliographical references (leaves 38-44). Also available online (PDF file) by a subscription to the set or by purchasing the individual file.
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