Muscular architecture of the popliteus muscle and the basic science implications

Wood, Addison; Boren, Morgan; Dodgen, Taylor; Wagner, Russell; Patterson, Rita M.

doi:10.1016/j.knee.2019.12.001

Cited by 8 publications

(7 citation statements)

References 26 publications

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“…Its force output is certainly less than other muscles crossing the knee, and its role may be to prevent the forward dislocation of the femur on the tibia during the flexed knee stance. Assessment of the POP architecture suggests that the ratio of physiological cross-sectional area to muscle fiber length allows force production over a limited distance [ 61 ].…”

Section: Discussionmentioning

confidence: 99%

An EMG-to-Force Processing Approach to Estimating Knee Muscle Forces during Adult, Self-Selected Speed Gait

Bogey

2023

Bioengineering

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Background: The purpose of this study was to determine the force production during self-selected speed normal gait by muscle–tendon units that cross the knee. The force of a single knee muscle is not directly measurable without invasive methods, yet invasive techniques are not appropriate for clinical use. Thus, an EMG-to-force processing (EFP) model was developed which scaled muscle–tendon unit (MTU) force output to gait EMG. Methods: An EMG-to-force processing (EFP) model was developed which scaled muscle–tendon unit (MTU) force output to gait EMG. Active muscle force power was defined as the product of MTU forces (derived from EFP) and that muscle’s contraction velocity. Net knee EFP moment was determined by summing individual active knee muscle moments. Net knee moments were also calculated for these study participants via inverse dynamics (kinetics plus kinematics, KIN). The inverse dynamics technique used are well accepted and the KIN net moment was used to validate or reject this model. Closeness of fit of the moment power curves for the two methods (during active muscle forces) was used to validate the model. Results: The correlation between the EFP and KIN methods was sufficiently close, suggesting validation of the model’s ability to provide reasonable estimates of knee muscle forces. Conclusions: The EMG-to-force processing approach provides reasonable estimates of active individual knee muscle forces in self-selected speed walking in neurologically intact adults.

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Section: Discussionmentioning

confidence: 99%

An EMG-to-Force Processing Approach to Estimating Knee Muscle Forces during Adult, Self-Selected Speed Gait

Bogey

2023

Bioengineering

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“…In fact,thegastrocnemius and quadriceps femoris have a coactivation effect when squatting up. However, when the soleus muscle is insu cient, the quadriceps femoris has to use more force to stabilize the knee joint, resulting in strain ofthequadriceps femoris [58] .The primary role of the popliteus muscle is to internally rotate the tibia in relation to the femur in open-chain and stabilization of the external rotation of the femur in relation to the tibia in closed chain situations, and the popliteus muscle tightness will cause di culty in stretching the knee joint [59,60] . (5).…”

Section: Discussionmentioning

confidence: 99%

Dry Needling on Latent and Active Myofascial Trigger Points Versus Oral Diclofenac in Patients With Knee Osteoarthritis: a Randomized Controlled Trial

Dong

Wang

et al. 2022

Preprint

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Background: Latent and active myofascial trigger points (MTrPs) in knee-associated muscles may play a key role in pain management among patients with knee osteoarthritis (KOA). The aim of this study was to investigate the effect of dry needling treatment on pain intensity, disability, and range of motion (ROM) in patients with KOA. Methods: This randomized, single-blinded, clinical trial was carried out for 6 weeks of treatment and 6-monthfollow-up. A total of 98 patients met the entry criteria and were randomly assigned to the dry needling latent and active myofascial trigger point (MTrPs) with the stretching group or the oral diclofenacwith the stretching group. Numeric Pain Rating Scale (NPRS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and ROM were statistically analyzed before and after treatment and at the 6-month follow-up. Results: A total of 42 patients in the dry needling group (DNG)and 35 patients in the diclofenac group (DG), respectively,completed the study, and there was no significant difference in the general data between the two groups. After treatments, both the groups showed a good effect in knee pain, function, and ROM, However, the DNG showed asignificantly better result than the DG. Especially in the results of the 6-month follow-up, the DNG showed much better results than the DG. Conclusions: Dry needling on latent and active MTrPscombined with stretching and oral diclofenac combined with stretching can effectively relieve pain, improve function, and restore knee ROM affected by KOA. However, the effects of dry needling and stretching are better and longer lasting than those of oral diclofenac and stretchingfor at least 6 months. Trial registration: Registered in the Chinese Clinical Trial Registry (www.chictr.org.cn) in 17/11/2017 with the following code: ChiCTR-INR-17013432.

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“…In fact,thegastrocnemius and quadriceps femoris have a co-activation effect when squatting up. However, when the soleus muscle is insufficient, the quadriceps femoris has to use more force to stabilize the knee joint, resulting in strain ofthequadriceps femoris [56].The primary role of the popliteus muscle is to internally rotate the tibia in relation to the femur in open-chain and stabilization of the external rotation of the femur in relation to the tibia in closed chain situations, and the popliteus muscle tightness will cause difficulty in stretching the knee joint [57,58]. (5).…”

Section: Table 3 Treatment Effects On Symptom Outcomesmentioning

confidence: 99%

Dry needling on latent and active myofascial trigger points versus oral diclofenac in patients with knee osteoarthritis: a randomized controlled trial

Dong

Wang

et al. 2023

BMC Musculoskelet Disord

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Background Latent and active myofascial trigger points (MTrPs) in knee-associated muscles may play a key role in pain management among patients with knee osteoarthritis (KOA). The aim of this study was to investigate the effect of dry needling treatment on pain intensity, disability, and range of motion (ROM) in patients with KOA. Methods This randomized, single-blinded, clinical trial was carried out for 6 weeks of treatment and 6-month follow-up. A total of 98 patients met the entry criteria and were randomly assigned to the dry needling latent and active myofascial trigger point (MTrPs) with the stretching group or the oral diclofenacwith the stretching group. Numeric Pain Rating Scale (NPRS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and ROM were statistically analyzed before and after treatment and at the 6-month follow-up. Results A total of 42 patients in the dry needling group (DNG) and 35 patients in the diclofenac group (DG), respectively, completed the study, and there was no significant difference in the general data between the two groups. After treatments, both the groups showed a good effect in knee pain, function, and ROM, However, the DNG showed a significantly better result than the DG. Especially in the results of the 6-month follow-up, the DNG showed much better results than the DG. Conclusions Dry needling on latent and active MTrPs combined with stretching and oral diclofenac combined with stretching can effectively relieve pain, improve function, and restore knee ROM affected by KOA. However, the effects of dry needling and stretching are better and longer lasting than those of oral diclofenac and stretching for at least 6 months. Trial registration Registered in the Chinese Clinical Trial Registry (www.chictr.org.cn) in 17/11/2017 with the following code: ChiCTR-INR-17013432.

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Muscular architecture of the popliteus muscle and the basic science implications

Cited by 8 publications

References 26 publications

An EMG-to-Force Processing Approach to Estimating Knee Muscle Forces during Adult, Self-Selected Speed Gait

An EMG-to-Force Processing Approach to Estimating Knee Muscle Forces during Adult, Self-Selected Speed Gait

Dry Needling on Latent and Active Myofascial Trigger Points Versus Oral Diclofenac in Patients With Knee Osteoarthritis: a Randomized Controlled Trial

Dry needling on latent and active myofascial trigger points versus oral diclofenac in patients with knee osteoarthritis: a randomized controlled trial

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