Effects of ankle dorsiflexion on range and reliability of straight leg raising

Boland, Robert A.; Adams, Roger

doi:10.1016/s0004-9514(14)60328-7

Cited by 57 publications

(39 citation statements)

References 31 publications

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“…The participant's leg 18 was lifted passively by the second test administrator into hip flexion. The ankle was kept in a relaxed 19 position throughout to minimize the influence of the gastrocnemius muscle (Boland and Adams, 2000). 20…”

Section: Methodsmentioning

confidence: 99%

Comparison of active stretching technique in males with normal and limited hamstring flexibility

Ayala

Baranda

Croix

et al. 2013

Physical Therapy in Sport

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DisclaimerThe University of Gloucestershire has obtained warranties from all depositors as to their title in the material deposited and as to their right to deposit such material.The University of Gloucestershire makes no representation or warranties of commercial utility, title, or fitness for a particular purpose or any other warranty, express or implied in respect of any material deposited.The University of Gloucestershire makes no representation that the use of the materials will not infringe any patent, copyright, trademark or other property or proprietary rights.The University of Gloucestershire accepts no liability for any infringement of intellectual property rights in any material deposited but will remove such material from public view pending investigation in the event of an allegation of any such infringement. Key words: stretching, ROM, flexibility, hamstring muscles, tightness.2 ABSTRACT 1

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Section: Methodsmentioning

confidence: 99%

Comparison of active stretching technique in males with normal and limited hamstring flexibility

Ayala

Baranda

Croix

et al. 2013

Physical Therapy in Sport

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“…12 Ankle dorsiflexion is a common sensitizing maneuver for SLR testing. 5,12,18 Studies in rats and dogs have demonstrated increased strain (elongation) in the sciatic nerve at the proximal thigh when ankle dorsiflexion was added to SLR testing. 1,7 Further support for the use of ankle dorsiflexion as a sensitizing maneuver is provided by findings from a cadaveric study, 12 in which prepositioning the ankle in dorsiflexion created distal movement in the tibial nerve at the knee and ankle.…”

Section: Clinical Assessment Sessionmentioning

confidence: 99%

“…Clinically, prepositioning the ankle in dorsiflexion leads to a reduction of hip range of motion during SLR testing, when taken to maximal resistance to hip flexion in people with low back pain and healthy individuals. 5 Neurodynamic testing can also produce increases in local muscle tone. SLR testing without ankle dorsiflexion has been shown to induce hamstring and gluteal muscle activity when the hip flexion is held at the maximally tolerated position.…”

Section: Clinical Assessment Sessionmentioning

confidence: 99%

“…28 Our results are consistent with a previous study that identified a significant 9° reduction in hip range of motion by the addition of ankle dorsiflexion. 5 We hypothesize that the SLR with ankle plantar flexion does not preload the sciatic, tibial, and plantar nerves, thus allowing the hip greater range of flexion before the nerve complex undergoes sufficient mechanical stress to trigger a symptomatic or motor response. Furthermore, we hypothesize that the SLR with ankle dorsiflexion triggers an earlier restriction to movement during SLR testing through preloading of these neural structures.…”

Section: Symptom Qualitymentioning

confidence: 99%

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Mechanosensitivity of the Lower Extremity Nervous System During Straight-Leg Raise Neurodynamic Testing in Healthy Individuals

Boyd

Wanek²,

Gray³

et al. 2009

J Orthop Sports Phys Ther

110

118

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respond to the mechanical stresses imposed upon them during movement. 27 Neurodynamic tests are used to assess the nervous system's mechanosensitivity through monitoring the response to movements that are known to alter the mechanical stresses acting on the nervous system. The most common lower quarter neurodynamic test is the passive straight-leg raise (SLR) test. 13,31 The basic SLR test consists of the tester performing passive hip flexion, with the patient in a supine position and the knee held in full extension. 9A recent systematic review of SLR testing indicated a lack of standardization, including the use of various criteria for determining the test end point. 31 The authors of this review reintroduced standardized methodology proposed by Breig and Troup 8 in 1979, including the use of the first onset of pain as the end point during the SLR test.31 Despite these recommendations, alternative end points, such as maximally tolerated symptom, are still utilized.17 Because SLR testing is performed in both symptomatic and C linical neurological examinations are an integral part of clinical decision making for determining neural involvement in individuals with altered physical function and activity participation. One aspect of a standard neurological examination involves assessing the sensitivity of peripheral nerves to limb movement, termed mechanosensitivity. Mechanosensitivity is thought to be a normal protective mechanism that allows the nerves to t STudy deSiGn: Cross-sectional, observational study.t objecTiveS: To explore how ankle position affects lower extremity neurodynamic testing. t backGround: Upper extremity limb movements that increase neural loading create a protective muscle action of the upper trapezius, resulting in shoulder girdle elevation during neurodynamic testing. A similar mechanism has been suggested in the lower extremities.t meThodS: Twenty healthy subjects without low back pain participated in this study. Hip flexion angle and surface electromyographic measures were taken and compared at the onset of symptoms (P1) and at the point of maximally tolerated symptoms (P2) during straight-leg raise tests performed with ankle dorsiflexion (DF-SLR) and plantar flexion (PF-SLR).t reSuLTS: Hip flexion was reduced during DF-SLR by a mean  SD of 5.5°  6.6° at P1 (P = .001) and 10.1°  9.7° at P2 (P.001), compared to PF-SLR. DF-SLR induced distal muscle activation and broader proximal muscle contractions at P1 compared to PF-SLR. t concLuSion: These findings support the hypothesis that addition of ankle dorsiflexion during straight-leg raise testing induces earlier distal muscle activation and reduces hip flexion motion. The straight-leg test, performed to the onset of symptoms (P1) and with sensitizing maneuvers, allows for identification of meaningful differences in test outcomes and is an appropriate end point for lower extremity neurodynamic testing.

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confidence: 99%

The effects of neurodynamic straight leg raise treatment duration on range of hip flexion and protective muscle activity at P1

Hanney

Ridehalgh

Dawson

et al. 2016

Journal of Manual & Manipulative Therapy

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2Maidstone and Tunbridge Wells NHS Trust, UK, 3 Beckenham Physiotherapy, Sports and Acupuncture Clinic, UK, 4 Frimley Park Hospital NHS Foundation Trust, UK Study design: Randomized, single blind, same subject crossover trial. Objectives: To compare the effects of two neurodynamic treatment doses on range of hip flexion (ROM HF) and electromyographic (EMG) activity of semitendinosus, at first onset of pain (P1). Methods: A total of 26 healthy participants without low back or leg pain received each treatment in a random order with at least 48 hours between sessions. Baseline ROM HF and EMG magnitude of semitendinosus at P1 were collected. Subjects then received either 361 or 362 minutes of oscillating end of range (grade IVz) straight leg raise (SLR) neurodynamic treatment and were re-assessed for baseline measures.Results: There was no significant difference between groups in EMG magnitude (P50.190) and ROM HF (P50.739) at P1. There was also no significant difference within groups in EMG magnitude at P1 (P50.182); however, there was a significant improvement in ROM HF at P1 in both groups compared to baseline readings (P50.000), with increases of 6.7u and 5.1u for the 361-and 362-minute groups, respectively. Conclusion: Findings indicate that 362 minutes of oscillating grade IVz SLR neurodynamic treatment has no additional benefit over 361 minute, on ROM HF or EMG magnitude of semitendinosus at P1. Using an oscillating SLR treatment may, however, help to increase pain-free ROM HF, although further studies are necessary to confirm this.

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Effects of ankle dorsiflexion on range and reliability of straight leg raising

Cited by 57 publications

References 31 publications

Comparison of active stretching technique in males with normal and limited hamstring flexibility

Comparison of active stretching technique in males with normal and limited hamstring flexibility

Mechanosensitivity of the Lower Extremity Nervous System During Straight-Leg Raise Neurodynamic Testing in Healthy Individuals

The effects of neurodynamic straight leg raise treatment duration on range of hip flexion and protective muscle activity at P1

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