Duration of Maintained Hamstring ROM Following Termination of Three Stretching Protocols

2007 ◽  
Vol 16 (1) ◽  
pp. 18-27 ◽  
Author(s):  
Philip Ford ◽  
John McChesney
Keyword(s):  
Range Of Motion ◽  
Active Control ◽  
Combined Treatment ◽  
Knee Extension ◽  
Specific Method ◽  
Static Stretch ◽  
Control Techniques ◽  
College Age ◽  
Type Design ◽  
Single Bout

Context:Literature supports habitual stretching for increasing an individual’s flexibility; however, immediate gains in range of motion have received limited investigation.Objective:The purpose of this study was to determine the retention of active knee extension range of motion (AKE ROM) after a single bout of stretching.Design:Subjects participated in three experimental stretching groups: contract-relax, agonist contract (CRAC); static stretch; and active control stretch. AKE ROM was measured by an analog inclinometer fixed to a modified Orthotron II for pretreatment and posttreatment measurements at 0, 3, 7, 12, 18, and 25 minutes.Participants:32 active male and female college age students.Results:Analysis suggested that stretching as a combined treatment effect demonstrated an increase in AKE ROM that lasted for 25 minutes; however, no specific method of stretching was found to be more beneficial.Conclusion:Stretching utilizing CRAC, static, or active control techniques lend support to their use for the purpose of increasing and retaining ROM prior to physical activity.

The Effect of 4 Different Durations of Static Hamstring Stretching on Passive Knee-Extension Range of Motion

2005 ◽  
Vol 14 (2) ◽  
pp. 95-107 ◽  
Author(s):  
Gregory S. Ford ◽  
Margaret A. Mazzone ◽  
Keith Taylor
Keyword(s):  
Range Of Motion ◽  
Outcome Measure ◽  
Knee Extension ◽  
Static Stretching ◽  
College Age ◽  
Type Design

Design:Pretest–posttest.Objective:To determine the effect of 4 durations of static hamstring stretching on knee-extension passive range of motion (KE-PROM).Context:Effects of longer (90 and 120 seconds) static hamstring stretching on PROM have not been established relative to more typically recommended 30- or 60-second durations.Subjects:35 healthy college-age subjects with >20° loss of KE-PROM.Outcome Measure:KE-PROM.Intervention:5-week program of single daily stretch for 30, 60, 90, or 120 seconds.Results:Static stretching was effective in increasing KE-PROM regardless of stretch duration (P< .0001). A significant improvement was identified in mean PROM for each stretching group, but no difference existed among the 4 stretch-duration groups. The control group’s mean PROM decreased (mean = -3.2°, SD = 1.9), whereas each stretching group increased PROM (means 1.9° to 3.6°).Conclusions:Five weeks of daily static hamstring stretching for 30, 60, 90, or 120 seconds increase KE-PROM. Similar benefits were achieved regardless of stretch duration, suggesting that clinicians need not perform static hamstring stretches of more than 30 seconds.

The Effect of Static Stretch and Dynamic Range of Motion Training on the Flexibility of the Hamstring Muscle

2021 ◽  
Vol 11 (11) ◽  
pp. 166-170
Author(s):  
Vishnu K Nair ◽  
Priya S ◽  
Jishana S
Keyword(s):  
Range Of Motion ◽  
Dynamic Range ◽  
Age Groups ◽  
Knee Extension ◽  
P Value ◽  
Static Stretch ◽  
Group A ◽  
Sporting Activities ◽  
Hamstring Flexibility ◽  
Group B

Introduction: A normal flexibility is required for an appropriate posture and entire activity in daily life. Hamstring is the muscle that is more prone for tightness. It present in all age groups and it increases with age and more over it is the muscle that is most prone to injuries during sporting activities. With regard to various methods that contribute to increasing flexibility of hamstring muscles, the current study aimed at investigating immediate effects of static stretching and dynamic range of motion training on hamstring flexibility increasing muscle flexibility. Methodology: 30 patients, age range 21-50 years, diagnosed with the Population who had hamstring tightness and divided equally into two groups-Group A and Group B .In Group B-Static Stretch exercise and in Group A-Dynamic Range of Motion Training exercise. Result: Pre and post evaluation of active knee extension test was taken. Result shows that there was significant improvement noted in both the groups (GROUP A: P value .000, t value:-17.9) and (GROUP B: P value: .000, t value:-17.6) Conclusion: Both the static stretch and dynamic exercise can be considered as an effective method for increasing flexibility and improving functions with hamstring tightness patients. Key words: Hamstring flexibility, Dynamic range of motion, and static stretch.

scholarly journals Effects of Different Stretching Times on Range of Motion in Patients with Hamstring Tightness: A Randomised Control Trial

2018 ◽  
Vol 23 (4) ◽  
pp. 554-559
Author(s):  
Halima Shoukat ◽  
Hafiz Sheraz Arshad ◽  
Faiza Sharif ◽  
Arooj Fatima ◽  
Filza Shoukat
Keyword(s):  
Knee Joint ◽  
Range Of Motion ◽  
Knee Extension ◽  
Repeated Measure ◽  
Randomised Control Trial ◽  
Static Stretching ◽  
Static Stretch ◽  
Mean Values ◽  
Measure Analysis ◽  
Hamstring Flexibility

Hamstring tightness is commonest cause of altered biomechanics of ankle, knee, hip and spine. Long persistent tightness results in pain, decreased range of motion and others pathologies in knee joint. Stretching techniques are used to treat muscle tightness. In clinical settings, different stretch holding timesare used to treat hamstring tightness. The purpose of the study was to determine effects of different static stretch holding-times on hamstring muscles flexibility and their impacts on improving range of motion (ROM) of knee extension in adults. This experimental work was conducted on students of University of Lahorefrom December 2013 to March 2014. The study comprised of 60 subjects with asymptomatic tightness of hamstrings muscles and subjects were aged between 18-26 years (irrespective of their gender). Range of motion at knee joint was measured by universal goniometer before the commencement of stretching technique. Static stretching was applied to group A, B and C with 30, 60 and 90 seconds holds, respectively. Stretches were exerted at frequency of three sessions per week and three repetitions per session. Reevaluation of ROM was performed after 4 and 6 weeks. The mean values of ROM of knee extension showed gainin range after applying static stretching at 30s, 60s and 90s holding times. By applying repeated measure analysis of variance (ANOVA), the p-values were found to be statistically significant (p<0.001) for static stretching techniques with 30s, 60s, 90s holding times, respectively. Based on these finding, it is plausible toconclude that application of static stretching at holding times of 30, 60 and 90 seconds can significantly improve the ROM of knee extension. Stretching techniques with different holding times were equally effective in improving knee extension and gaining hamstring flexibility in adults.

The tolerance to stretch is linked with endogenous modulation of pain

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Morten Pallisgaard Støve ◽  
Rogerio Pessoto Hirata ◽  
Thorvaldur Skuli Palsson
Keyword(s):  
Range Of Motion ◽  
Pain Sensitivity ◽  
Cold Pressor Test ◽  
Cold Pressor ◽  
Static Stretch ◽  
Pain Thresholds ◽  
Pressure Pain ◽  
Pressor Test ◽  
Pressure Pain Thresholds ◽  
Exercise Induced

Abstract Objectives The effect of stretching on joint range of motion is well documented, and although sensory perception has significance for changes in the tolerance to stretch following stretching the underlining mechanisms responsible for these changes is insufficiently understood. The aim of this study was to examine the influence of endogenous pain inhibitory mechanisms on stretch tolerance and to investigate the relationship between range of motion and changes in pain sensitivity. Methods Nineteen healthy males participated in this randomized, repeated-measures crossover study, conducted on 2 separate days. Knee extension range of motion, passive resistive torque, and pressure pain thresholds were recorded before, after, and 10 min after each of four experimental conditions; (i) Exercise-induced hypoalgesia, (ii) two bouts of static stretching, (iii) resting, and (iv) a remote, painful stimulus induced by the cold pressor test. Results Exercise-induced hypoalgesia and cold pressor test caused an increase in range of motion (p<0.034) and pressure pain thresholds (p<0.027). Moderate correlations in pressure pain thresholds were found between exercise-induced hypoalgesia and static stretch (Rho>0.507, p=0.01) and exercise-induced hypoalgesia and the cold pressor test (Rho=0.562, p=0.01). A weak correlation in pressure pain thresholds and changes in range of motion were found following the cold pressor test (Rho=0.460, p=0.047). However, a potential carryover hypoalgesic effect may have affected the results of the static stretch. Conclusions These results suggest that stretch tolerance may be linked with endogenous modulation of pain. Present results suggest, that stretch tolerance may merely be a marker for pain sensitivity which may have clinical significance given that stretching is often prescribed in the rehabilitation of different musculoskeletal pain conditions where reduced endogenous pain inhibition is frequently seen.

The Use of Damping Based Semi-Active Control Algorithms in the Mechanical Smart-Spring System

2017 ◽  
Vol 140 (2) ◽  
Author(s):  
Wander Gustavo Rocha Vieira ◽  
Fred Nitzsche ◽  
Carlos De Marqui
Keyword(s):  
Active Control ◽  
Control Algorithm ◽  
Control Strategies ◽  
Vibration Reduction ◽  
Flow Analysis ◽  
Coupled Systems ◽  
Control Technique ◽  
Control Algorithms ◽  
Control Techniques ◽  
Spring Mechanism

In recent decades, semi-active control strategies have been investigated for vibration reduction. In general, these techniques provide enhanced control performance when compared to traditional passive techniques and lower energy consumption if compared to active control techniques. In semi-active concepts, vibration attenuation is achieved by modulating inertial, stiffness, or damping properties of a dynamic system. The smart spring is a mechanical device originally employed for the effective modulation of its stiffness through the use of semi-active control strategies. This device has been successfully tested to damp aeroelastic oscillations of fixed and rotary wings. In this paper, the modeling of the smart spring mechanism is presented and two semi-active control algorithms are employed to promote vibration reduction through enhanced damping effects. The first control technique is the smart-spring resetting (SSR), which resembles resetting control techniques developed for vibration reduction of civil structures as well as the piezoelectric synchronized switch damping on short (SSDS) technique. The second control algorithm is referred to as the smart-spring inversion (SSI), which presents some similarities with the synchronized switch damping (SSD) on inductor technique previously presented in the literature of electromechanically coupled systems. The effects of the SSR and SSI control algorithms on the free and forced responses of the smart-spring are investigated in time and frequency domains. An energy flow analysis is also presented in order to explain the enhanced damping behavior when the SSI control algorithm is employed.

Patient Self-Assessed Passive Range of Motion of the Knee Cannot Replace Health Professional Measurements

2017 ◽  
Vol 30 (08) ◽  
pp. 829-834
Author(s):  
Frank Madsen ◽  
Anders Odgaard ◽  
Jens Borgbjerg
Keyword(s):  
Range Of Motion ◽  
Knee Extension ◽  
Flexion Contracture ◽  
Patient Assessment ◽  
Limits Of Agreement ◽  
Self Assessment ◽  
Knee Motion ◽  
Bland Altman Method ◽  
Flexion And Extension ◽  
Patient Self Assessment

AbstractThe purpose of this study was to investigate whether patients can accurately self-assess their knee passive range of motion (PROM). A picture-based questionnaire for patient self-assessment of knee PROM was developed and posted to patients. The self-assessed PROM from 58 patients was compared with surgeon-assessed PROM using a short-arm goniometer. Agreement between the measurement methods was calculated with the Bland-Altman method. We calculated the sensitivity and specificity of patient-assessed PROM in dichotomously detecting knee motion impairment in both flexion (≤ 100 degrees) and extension (≥ 10-degree flexion contracture). Surgeon- and patient-assessed knee PROM showed a mean difference (95% limits of agreement) of −2.1 degrees (−42.5 to 38.3 degrees) for flexion and −8.1 degrees (−28.8 to 12.7 degrees) for extension. The sensitivity of patient self-assessed PROM in identifying knee flexion and extension impairments was 86 and 100%, respectively, whereas its specificity was 84 and 43%, respectively. Although wide limits of agreement were observed between surgeon- and patient-assessed knee PROM, the picture-based questionnaire for patient assessment of knee ROM was found to be a valid tool for dichotomously detecting knee motion impairment in flexion (≤ 100 degrees). However, the specificity of the questionnaire for detection of knee extension impairments (≥ 10-degree flexion contracture) was low, which limits is practical utility for this purpose.

A Mechanical Equinometer to Measure the Range of Motion of the Ankle Joint: Interobserver and Intraobserver Reliability

2006 ◽  
Vol 27 (3) ◽  
pp. 202-205 ◽  
Author(s):  
Dominik C. Meyer ◽  
Clement M.L. Werner ◽  
Tobias Wyss ◽  
Patrick Vienne
Keyword(s):  
Range Of Motion ◽  
Ankle Joint ◽  
Precise Measurement ◽  
Knee Extension ◽  
Measurement Tool ◽  
Foot And Ankle ◽  
Reliable Technique ◽  
Plantar Surface ◽  
Clinical Measurements ◽  
Very High

Background: Clinical measurement of passive dorsiflexion of the ankle joint is essential for the diagnosis of various pathologic conditions of the foot and ankle but is of unreliable precision with high interobserver variability in nonweightbearing tests. This work was designed to develop and test a precise, standardized, and reliable technique for measurement of passive and active ankle range of motion. Methods: The proposed measurement tool is composed of two mobile parallelograms, one attached to the tibia, the second one to the plantar surface of the foot. The parallelograms are connected with a hinge with an angular scale to measure the angle between the foot and tibia. Results: Interobserver correlation between clinical measure-ments for maximal passive foot dorsiflexion were 0.03 with knee extension and 0.38 with knee flexion, while for measurements with the proposed tool they reached 0.89 and 0.97, respectively, with a mean measurement error of 0.9 degrees. Intraobserver correlations reached values of r = 0.98 and 0.99. Conclusions: The proposed tool allows measurement of the ankle range of motion with very high precision and reproducibility far superior to clinical measurements. Clinical Relevance: Precise measurement of ankle range of motion is clinically challenging. With the use of the proposed tool, measurement precision and reliability are decisively improved.

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