Comparison of Pelvic Tilt Before and After Hip Flexor Stretching in Healthy Adults

Preece, Stephen; Tan, Yen Fang; Alghamdi, Talal D.A.; Arnall, Frances

doi:10.1016/j.jmpt.2020.09.006

Cited by 11 publications

(9 citation statements)

References 32 publications

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“…Therefore, the link between lumbar spine kinematics and HSI appears at best theoretical. Instead, it is perhaps more plausible that the mechanistic link between the two may be the result of kinematic coupling between lumbar spine extension and APT [ 75 ].…”

Section: Kinematic Parametersmentioning

confidence: 99%

Exploring the Role of Sprint Biomechanics in Hamstring Strain Injuries: A Current Opinion on Existing Concepts and Evidence

Bramah,

Mendiguchia,

Dos’Santos

et al. 2023

Sports Med

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Hamstring strain injuries are one of the most common injuries in sprint-based sports with the mechanism of injury considered the result of an interaction between applied mechanical strain and the capacity of the muscle to tolerate strain. To date, injury prevention and rehabilitation strategies have frequently focused on enhancing the capacity of the hamstrings to tolerate strain, with little consideration of factors directly influencing mechanical strain. Sprint running biomechanics are one factor proposed to influence the mechanical strain applied to the hamstrings that may be modified (towards reduced strain) within rehabilitation and injury prevention programs. This article aims to explore the theoretical mechanistic link between sprint running mechanics and hamstring strain injury, along with the available supporting evidence. In doing so, it hopes to provide practitioners with an understanding of mechanical parameters that may influence hamstring strain injury whilst also identifying areas for further research exploration.

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Section: Kinematic Parametersmentioning

confidence: 99%

Exploring the Role of Sprint Biomechanics in Hamstring Strain Injuries: A Current Opinion on Existing Concepts and Evidence

Bramah,

Mendiguchia,

Dos’Santos

et al. 2023

Sports Med

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“…It has been suggested that shortened hip flexor muscles, such as iliopsoas or rectus femoris, may pull the pelvis anteriorly [ 26 ]. Hence, one would expect that a greater posterior pelvic tilt would increase hip flexion force due to an increase in its length.…”

Section: Discussionmentioning

confidence: 99%

Does Pelvic Tilt Angle Influence the Isokinetic Strength of the Hip and Knee Flexors and Extensors?

Kellis,

Konstantopoulos,

Salonikios

et al. 2024

JFMK

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The purpose of this study was to examine the effect of pelvic tilt angle on maximum hip and knee muscles’ strength and antagonist/agonist strength ratios. Twenty-one young males and females performed maximum isokinetic concentric knee extension–flexion and hip extension–flexion efforts at 60°·s−1, 120°·s−1, and 180°·s−1 from three positions: anterior, neutral, and posterior pelvic tilt. Peak torques and knee flexor-to-extensor and hip flexor-to-extensor torque ratios were analyzed. An analysis of variance showed that peak hip extensor torque was significantly greater in the anterior pelvic tilt condition compared to either neutral or posterior pelvic tilt angles (p > 0.05). No effects of changing pelvic tilt angle on hip flexor, knee flexor, or knee extension values were found (p > 0.05). The hip flexor-to-extensor torque ratio decreased (p < 0.05) in the anterior pelvic tilt position relative to the other positions, while no difference in the knee flexor-to-extensor ratio between pelvic positions was observed (p > 0.05). This study shows that an increased anterior pelvic tilt affects the maximum isokinetic strength of the hip extensors, supporting previous suggestions regarding the link between pelvic position and hip and knee muscle function. Isokinetic testing from an anterior pelvic tilt position may alter the evaluation of hip flexion/extension strength.

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“…PNF stretching is a technique used in a clinical setting by physical therapists and trainers for various reasons, but there is no evidence yet for how PNF affects anterior pelvic tilt and any ailments that are often a result of it. Other studies have tested the effects of other stretches on APT, comparing pelvic tilt angle before and after a hip exor stretch on 23 healthy male adults (22). They found that a mean reduction of 1.2° (p < 0.001) in anterior pelvic tilt (22).…”

Section: Discussionmentioning

confidence: 99%

Effects of a PNF Stretching Protocol on Anterior Pelvic Tilt and Range of Motion in Hamstrings in Young Adult and Middle-Aged Individuals

Kumai,

Travis,

Butte

et al. 2024

Preprint

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The primary purpose of this study was to determine the effects of a quadriceps/hip flexor Proprioceptive Neuromuscular Facilitation (PNF) stretch protocol on anterior pelvic tilt (APT), hamstring range of motion (ROM), and gluteal muscle activation. We also examined the relationship between hamstring ROM and gluteal activation. Eligible participants (N = 35; 24(± 4) years) completed an 8-minute stationary bike warm-up at a self-selected pace. Then participants completed measurements of standing sagittal assessment, Active Straight Leg Raise (ASLR), and Cook’s Hook test (CH) to measure APT, hamstring ROM, and gluteal activation, respectively. After a 4-minute rest, the measures were repeated. A quadriceps/hip flexor PNF stretch intervention (~ 4 minutes) was completed (10-6-30-second hold-relax method). The measures were repeated a third time. The study found 86% (right side), and 88% (left side) with APT initially improved their APT to normal after the PNF intervention. There was a significant bilateral improvement in hamstring ROM after the PNF intervention (p < 0.001). For gluteal activation, 30% (right side) and 45% (left side) improved from hamstring dominance to gluteal dominance after the PNF intervention. Lastly, those that were gluteal dominant (favorable) had significantly more hamstring ROM than those that were hamstring dominant at all time points (p < 0.001). These data support a hip flexors/quadriceps PNF stretch protocol were effective to immediately reduce APT, increase hamstring ROM and gluteal activation, thereby improving lumbo-pelvic posture.

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Comparison of Pelvic Tilt Before and After Hip Flexor Stretching in Healthy Adults

Cited by 11 publications

References 32 publications

Exploring the Role of Sprint Biomechanics in Hamstring Strain Injuries: A Current Opinion on Existing Concepts and Evidence

Exploring the Role of Sprint Biomechanics in Hamstring Strain Injuries: A Current Opinion on Existing Concepts and Evidence

Does Pelvic Tilt Angle Influence the Isokinetic Strength of the Hip and Knee Flexors and Extensors?

Effects of a PNF Stretching Protocol on Anterior Pelvic Tilt and Range of Motion in Hamstrings in Young Adult and Middle-Aged Individuals

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