Dataset Information

Decreased neck proprioception and postural stability after induced cervical flexor muscles fatigue.

ABSTRACT:

Objectives

This study investigated the effect of cervical flexor muscles fatigue on neck proprioception and postural stability.

Methods

Forty-five male and female subjects were evaluated pre, immediate after induction of fatigue, and after recovery. Isometric neck flexor muscle endurance test (NET) was used for the induction of cervical flexor muscle fatigue. Cervical proprioception was assessed by cervical joint position error test (JPET) via overhead laser pointer while postural stability was assessed by using (a) biodex balance system measuring "Overall stability index (OSI), Anterior/ posterior (A/P) index and medial/ lateral (M/L) index", (b) multidirectional reach test.

Results

There was a significant decrease in cervical proprioception (cervical joint position error test) and postural stability (biodex balance system & multidirectional reach test) immediate post-induction of fatigue compared with both before induction of fatigue & after recovery from fatigue (p<0.001).

Conclusion

Subjects suffering from cervical muscles fatigue are vulnerable to have a significant effect on neck proprioception and postural instability as it impaired the cervical proprioception sense & postural stability. Therefore, our study provides information for the clinicians and patients to avoid overload fatigue of the cervical muscles because it affects overall postural balance, neck proprioception & righting reaction.

SUBMITTER: Abdelkader NA

PROVIDER: S-EPMC7493440 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Publications

Decreased neck proprioception and postural stability after induced cervical flexor muscles fatigue.

Abdelkader Nasr Awad NA Mahmoud Alaa Yousri AY Fayaz Nadia Abdelazim NA Saad El-Din Mahmoud Lama L

Journal of musculoskeletal & neuronal interactions 20200901 3

<h4>Objectives</h4>This study investigated the effect of cervical flexor muscles fatigue on neck proprioception and postural stability.<h4>Methods</h4>Forty-five male and female subjects were evaluated pre, immediate after induction of fatigue, and after recovery. Isometric neck flexor muscle endurance test (NET) was used for the induction of cervical flexor muscle fatigue. Cervical proprioception was assessed by cervical joint position error test (JPET) via overhead laser pointer while postural ...[more]

PMID: 32877979

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Project description:BackgroundRheumatoid arthritis (RA) is a chronic autoimmune disease that impairs proprioception and postural control, increasing fall risk and reducing quality of life. This study evaluated cervical proprioception and postural control in RA patients versus asymptomatic individuals, examined their relationship within the RA group, and investigated pain's mediating effects on this association.MethodsIn this cross-sectional study, 82 RA patients and 82 age- and gender-matched controls were recruited. Cervical proprioception was assessed using the Cervical Joint Position Error Test (CJPET), while postural control was evaluated via a stabilometric force platform measuring center-of-pressure length (L CoP), 95% confidence ellipse sway area (ESA 95%), and center-of-pressure velocity (V CoP). Statistical analyses included t-tests, correlation, regression, and mediation analysis to evaluate relationships and the role of pain in cervical proprioception and postural control.ResultsRA patients demonstrated significantly impaired cervical proprioception and postural control compared to controls (p < 0.001). Significant differences were observed in cervical flexion, extension, rotation, and postural control measures (L CoP, ESA 95%, and V CoP; p < 0.001 for all parameters). Pearson's correlations revealed significant relationships between cervical proprioception and postural control parameters. Regression analysis indicated that cervical proprioception, particularly when combined with age and disease duration, significantly predicted postural control. Mediation analysis revealed that pain significantly mediated the relationship between cervical proprioception and postural control.ConclusionsCervical proprioception is significantly reduced in RA patients and strongly influences postural control. Pain serves as a key mediator in this relationship, emphasizing the need for effective pain management to enhance proprioceptive and postural functions in RA patients. These findings suggest that the insights from this cross-sectional study could inform future interventions aimed at enhancing proprioception and managing pain, which may significantly benefit RA patients' postural stability and overall quality of life.

Project description:Background: The pathological mechanism of knee osteoarthritis (KOA) is unknown. KOA degeneration may be associated with changes in muscle strength, proprioception, biomechanics, and postural stability. Objective: This study aimed to assess asymmetries in muscle strength, proprioception, biomechanics, and postural stability of bilateral lower limbs in patients with unilateral KOA and healthy controls and analyze correlations between KOA and these parameters. Methods: A total of 50 patients with unilateral KOA (age range: 50-70) and 50 healthy subjects were recruited as study participants (age range: 50-70). Muscle strength, proprioception, femorotibial angle (FTA), femoral condylar-tibial plateau angle (FCTP), average trajectory error (ATE), and center of pressure (COP) sways areas were accessed in study participants, and the correlation between these variables was investigated. Results: In patients with unilateral KOA, lower limb muscle strength was significantly lower on the symptomatic side than on the asymptomatic side (p < 0.01), while the proprioception (degree error), FTA, FCTP, and ATE were substantially higher compared to the asymptomatic side (p < 0.01). However, no significant difference was observed in the healthy controls (p > 0.05). Patients with unilateral KOA had lower muscle strength than healthy controls (p < 0.05), but their proprioception (degree error: the difference between the target and reproduction angles), ATE, and COP sway areas were higher (p < 0.05). Muscle strength was found to be negatively correlated with ATE and COP sways areas (p < 0.05), whereas proprioception (degree error) was positively correlated with ATE and COP sways areas (p < 0.05) in all study participants. However, no correlation was found between FTA, FCTP, and ATE, COP sways areas in patients with unilateral KOA (p > 0.05). Conclusion: In patients with unilateral KOA, muscle strength, proprioception, biomechanics, and postural stability of bilateral limbs are asymmetrical in unilateral KOA patients. Muscle strength, proprioception, and postural stability are significantly associated variables, and changes in these variables should be considered in KOA prevention and rehabilitation.

Dataset Information

Decreased neck proprioception and postural stability after induced cervical flexor muscles fatigue.

Objectives

Methods

Results

Conclusion

Publications

Decreased neck proprioception and postural stability after induced cervical flexor muscles fatigue.

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