Biomechanical changes at the knee after lower limb fatigue in healthy young women

Longpré, Heather S.; Potvin, Jim R.; Maly, Monica R.

doi:10.1016/j.clinbiomech.2013.02.010

Cited by 43 publications

(31 citation statements)

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“…Lower extremity neuromuscular fatigue alters knee moments during low demand tasks such as walking in healthy young adults (Longpré et al, 2013;Murdock and Hubley-Kozey, 2012;Parijat and Lockhart, 2008); however some inconsistency in joint loading changes after fatigue exists between these studies. All of these studies fatigued the quadriceps and reported a decrease in the knee flexion/extension moment at different points during the gait cycle, however one study reported a higher post-fatigue peak KAM during gait (Murdock and Hubley-Kozey, 2012) while another reported this measure to be unchanged by fatigue (Longpré et al, 2013). Similarly between these studies, post-fatigue activations of the quadriceps trended toward lower values than those at baseline, which is consistent with the current study.…”

Section: Discussionmentioning

confidence: 98%

Muscle activation and knee biomechanics during squatting and lunging after lower extremity fatigue in healthy young women

Longpré

Acker

Maly

2015

Journal of Electromyography and Kinesiology

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Section: Discussionmentioning

confidence: 98%

Muscle activation and knee biomechanics during squatting and lunging after lower extremity fatigue in healthy young women

Longpré

Acker

Maly

2015

Journal of Electromyography and Kinesiology

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“…Long pre et al found no changes in knee adduction moment, knee flexion angles, dynamic knee stiffness, and muscle co-activation after lower limb fatigue. They just found that the peak knee extension moment reduced during fatigue [14]. Hunt et al assessed the effect of ankle plantar flexor fatigue on knee and ankle biomechanics during gait.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fatigue on Knee Kinematics and Kinetics During Walking in Individuals With Flat Feet

Farahpour

Sharifmoradi

Azizi

2017

PTJ

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Flat feet associates with altered knee kinematics, kinetics, as well as knee pain. Fatigue of plantar intrinsic foot muscles may increase the navicular drop. However, it is unclear how fatigue influences the knee pain in individuals with flat feet. The purpose of this study was to assess the effect of fatigue on knee kinematics and kinetics in flat feet people during walking. Methods: This is a quasi-experimental research. Ten individuals with flat feet (Mean±SD age: 24.4±2.16 y; Mean±SD height: 177.2±4.31 cm; Mean±SD mass: 81.9±17.4 kg) and 10 normal subjects (Mean±SD age: 25.28±6.33 y; Mean±SD height: 168.61±27.71 cm; Mean±SD mass: 78.13±26.93 kg) were participated in this study. A Vicon motion analysis system (100 Hz) with four cameras and two Kistler force plates (1000 Hz) were used to measure knee kinematics and kinetics during gait before and after fatigue. For between group and within group comparisons, the Independent t test and repeated measures analysis of variance were used, respectively. SPSS (V. 22) was used to analyze data with the significance level of P<0.05. Results: Knee range of motion of flat feet group in frontal plane (9.37±2.54 degree) was significantly higher than that of healthy group (P=0.01) in the pretest. In the flat feet group, the knee moment in sagittal, frontal, and horizontal plan was significantly greater than those in the healthy group by 0.86 (P=0.002), 0.25 (P=0.016) and 0.19 (P=0.000) Nm/BW, respectively in the pretest. Adductor moment increased after fatigue protocol in the healthy group by 0.08 Nm/BW. Conclusion: Before exhaustion, the knee moments in sagittal, frontal, and horizontal planes in the flat feet group were significantly higher than that in the healthy group. In the flat feet group, fatigue resulted in a decrease on the knee flexion and abduction moments and increase in knee ROM in sagittal and frontal plane in the flat foot group. The decreased knee muscle moments may result in an increased loading on the knee joint. It appears that extreme exhausting activity might place the knees of flat feet individuals at the risk of pathology and injury.

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“…Muscle fatigue is a complex and time-dependent process involving physiological, biomechanical and psychological components (Seghers & Spaepen, 2004), occurring during repetitive muscular contractions (Gandevia, 2001) (either isometric, concentric or eccentric) displayed as a reduction of forcegenerating capacity (Longpre, Potvin, & Maly, 2013) or a defective functional outcome (De Luca, 1985;Sesboue & Guincestre, 2006), regardless if the task can be sustained or not (Bigland-Ritchie & Woods, 1984).…”

Section: Introductionmentioning

confidence: 99%

Shoulder Muscular Fatigue: Application, Assessment And Clinical Implications

Horobeanu¹

2019

The European Proceedings of Social and Behavioural Sciences

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Objective: To present the available scientific information regarding shoulder muscle fatigue, with its clinical aspects and implications, and to outline the tools and methods used to assess and quantify it. Methods: The available literature was appraised and relevant studies were identified using the following keywords, separate or in combination: "shoulder", "muscle", "fatigue", "assessment". Results: The muscles around shoulder joint behave differently to fatigue, internal rotators appearing to be more fatigue-resistant than external rotators. A decrease of 30% or more in the rotator cuff strength appears to be significant enough to result in a structural "impingement position". Different tools and practices exist to assess and quantify muscular fatigue. Hand-held dynamometer is frequently used by clinicians, despite the fact that isometric contractions are not often met in daily activities. Isokinetic apparatus has a high level of accuracy and numerous outcomes, but a standardised and reliable protocol has to be established. Surface electromyography is limited to accurate analyses of immediate underneath skin muscles and only during static situations. 3D motion analyses have shown interesting compensatory adaptations in opposition with previous believes, therefore further investigations are needed. Conclusions: Fatigue of shoulder muscle groups induces sensory motor perturbation, which alters shoulder joint kinematics overloading different structures and decreasing performance. So far, there seems to be no consensus regarding "the ultimate assessment tool". Isokinetic machines have shown to be the most accurate, but more work is needed to design the most adequate and reliable protocol to induce and quantify shoulder muscular fatigue.

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Biomechanical changes at the knee after lower limb fatigue in healthy young women

Cited by 43 publications

References 50 publications

Muscle activation and knee biomechanics during squatting and lunging after lower extremity fatigue in healthy young women

Muscle activation and knee biomechanics during squatting and lunging after lower extremity fatigue in healthy young women

Effect of Fatigue on Knee Kinematics and Kinetics During Walking in Individuals With Flat Feet

Shoulder Muscular Fatigue: Application, Assessment And Clinical Implications

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