Co-activation patterns of gastrocnemius and quadriceps femoris in controlling the knee joint during walking

Mengarelli, Alessandro; Gentili, Andrea; Strazza, Annachiara; Burattini, Laura; Fioretti, Sandro; Nardo, Francesco Di

doi:10.1016/j.jelekin.2018.07.003

Cited by 23 publications

(26 citation statements)

References 41 publications

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“…Future research can also examine the potential implications of changing hip flexion angle on functional tasks. For example, studies have commented that muscle co-activation plays a role of knee joint stability and it is a function of knee joint angle [21,36,37]. In this respect, small changes in hip flexion angle can selectively alter relative torque production of the two antagonistic muscle groups, resulting in changes in strength balance around the knee.…”

Section: Discussionmentioning

confidence: 99%

Effect of Hip Flexion Angle on the Hamstring to Quadriceps Strength Ratio

Kellis

Ellinoudis

Kofotolis

2019

Sports

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The purpose of this study was to compare the hamstring to quadriceps ratio (H:Q) obtained from three different hip flexion angles. Seventy-three young athletes performed maximum isokinetic concentric and eccentric knee extension and flexion efforts at 60 °·s−1 and 240 °·s−1 from hip flexion angles of 90°, 60°, and 120°. The conventional (concentric to concentric), functional (eccentric to concentric) and mixed (eccentric at 30 °·s−1 to concentric torque at 240 °·s−1) H: Q torque ratios and the electromyographic activity from the rectus femoris and biceps femoris were analyzed. The conventional H:Q ratios and the functional H:Q ratios at 60 °·s−1 did not significantly differ between the three testing positions (p > 0.05). In contrast, testing from the 90° hip flexion angle showed a greater functional torque ratio at 240 °·s−1 and a mixed H:Q torque ratio compared with the other two positions (p < 0.05). The hip flexion angle did not influence the recorded muscle activation signals (p > 0.05). For the range of hip flexion angles tested, routine isokinetic assessment of conventional H:Q ratio and functional H:Q ratio at slow speed is not angle-dependent. Should assessment of the functional H:Q ratio at fast angular velocity or the mixed ratio is required, then selection of hip flexion angle is important.

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Section: Discussionmentioning

confidence: 99%

Effect of Hip Flexion Angle on the Hamstring to Quadriceps Strength Ratio

Kellis

Ellinoudis

Kofotolis

2019

Sports

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“…In the same manner, the soleus muscle pulls tibia and fibula in the posterior direction. As a result, during OKC, both the calf muscle and the soleus muscles function to extend the knee join [5][6][7] . This is considered to be why a positive correlation between ankle plantar flexion and leg extensor torque was observed.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, calf muscles function to bend the knee joint in CKC 4) . However, when the angle of knee joint approaches the extended position, the knee joint itself becomes extended [5][6][7] . In this case, in standing and walking, which are CKC movements, the triceps surae muscle is involved in knee joint extension.…”

Section: Introductionmentioning

confidence: 99%

Correlation between ankle plantar flexor strength and leg extensor torque

2020

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The purpose of this study is to consider the correlation between ankle plantar flexor strength and leg extensor torque in order to investigate whether the leg extension torque can be expected to increase as the triceps surae muscle strength is increased. [Participants and Methods] Healthy adults of 30 males and 22 females were recruited. Hand Held Dynamometer was used to measure ankle plantar flexor strength. Strength Ergo 240 was used to measure leg extensor torque. After measurement, a correlation between these factors was investigated by gender. [Results] For both males and females, a significant positive correlation between the left and right ankle plantar flexor strength and leg extensor torque was observed. [Conclusion] Actively performing muscle strengthening exercises for ankle plantar flexor by physical therapists was found to be meaningful in increasing leg extensor torque.

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“…TA is indexed to the rate of change in the increasing MCSA of the middle portion of the muscle with respect to contraction in the direction of the plantar flexion of the ankle. It is said that antagonistic muscles act in concert during the activity of the agonistic muscles, and are involved in joint stability and motor control 18) . Therefore, in this study, although the TA was not directly involved in ankle plantar flexion movement, muscle activity was thought to have occurred by regulating the plantar flexion direction during contraction.…”

Section: Discussionmentioning

confidence: 99%

Morphological changes in the long axis of the lower leg muscles during isometric contraction in the sitting position

et al. 2020

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[Purpose] To compare the changes in the muscle cross-sectional area (MCSA) along the long axis of the lower leg muscles at rest and during ankle plantar flexors isometric contraction and to obtain basic information regarding the movement of lower leg muscles during ankle plantar flexors contraction. [Participants and Methods] Sixteen healthy young female participants (20.9 ± 1.2 years) were asked to sit with their ankles in a neutral ankle position. Images were obtained at rest and during isometric contraction of the ankle plantar flexors using gravity magnetic resonance imaging. The MCSAs of the triceps surae and tibialis anterior were measured. [Results] The middle region of the soleus muscle had a lower MCSA on contraction than at rest. In addition, the medial head of the gastrocnemius had a lower MCSA on contraction than at rest in the distal quarter. Moreover, the tibialis anterior had a lower MCSA at rest than on contraction in the middle region. [Conclusion] The area to be used as an indicator and the movement to be induced differ depending on the muscle during isometric contraction of the triceps surae.

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Co-activation patterns of gastrocnemius and quadriceps femoris in controlling the knee joint during walking

Cited by 23 publications

References 41 publications

Effect of Hip Flexion Angle on the Hamstring to Quadriceps Strength Ratio

Effect of Hip Flexion Angle on the Hamstring to Quadriceps Strength Ratio

Correlation between ankle plantar flexor strength and leg extensor torque

Morphological changes in the long axis of the lower leg muscles during isometric contraction in the sitting position

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