Autogenetic reflex effects of slow or steady stretch of the calf muscles in man

1968 ◽  
Vol 6 (2) ◽  
Author(s):  
R.F. Mark ◽  
J.M. Coquery ◽  
J. Paillard
Keyword(s):  
Calf Muscles

3D Microstructural Fiber Tracking of the Human Calf Muscles in Individuals With and Without Type 2 Diabetes during Rest and Exercise

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 632-P
Author(s):  
MASOUD EDALATI ◽  
CHRISTOPHER J. SORENSEN ◽  
MARY HASTINGS ◽  
MOHAMED A. ZAYED ◽  
MICHAEL J. MUELLER ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Fiber Tracking ◽  
Human Calf ◽  
Calf Muscles ◽  
Rest And Exercise

scholarly journals Association between Oxygen Consumption and Surface Electromyographic Amplitude and Its Variation within Individual Calf Muscles during Walking at Various Speeds

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1748
Author(s):  
Kohei Watanabe ◽  
Shideh Narouei
Keyword(s):  
Oxygen Consumption ◽  
Spatial Variation ◽  
Metabolic Response ◽  
Correlation Coefficients ◽  
Surface Emg ◽  
Medial Gastrocnemius ◽  
Whole Body ◽  
Young Males ◽  
Emg Amplitude ◽  
Calf Muscles

Surface electromyography (EMG) has been used to estimate muscle work and physiological burden of the whole body during human movements. However, there are spatial variations in surface EMG responses within individual muscles. The aim of this study was to investigate the relation between oxygen consumption and surface EMG responses of lower leg muscles during walking at various speeds and to quantify its spatial variation within an individual muscle. Nine young males walked on a treadmill at four speeds: preferred minus 1 km/h, preferred, preferred plus 1 km/h, and preferred plus 2 km/h, and the metabolic response was measured based on the expired gas. High-density surface EMG of the tibialis anterior (TA), medial gastrocnemius (MG), lateral gastrocnemius, and soleus muscles was performed using 64 two-dimensional electrode grids. Correlation coefficients between oxygen consumption and the surface EMG amplitude were calculated across the gait speeds for each channel in the electrode grid and for individual muscles. Mean correlation coefficients across electrodes were 0.69–0.87 for the four individual muscles, and the spatial variation of correlation between the surface EMG amplitude and oxygen consumption within an electrode grid was significantly greater in MG muscle than in TA muscle (Quartile deviations: 0.24 for MG and 0.02 for TA, p < 0.05). These results suggest that the physiological burden of the whole body during gait at various speeds can be estimated from the surface EMG amplitude of calf muscles, but we need to note its spatial distribution within the MG muscle.

scholarly journals A pilot study of regional perfusion and oxygenation in calf muscles of individuals with diabetes with a noninvasive measure

2014 ◽  
Vol 59 (2) ◽  
pp. 419-426 ◽  
Author(s):  
Jie Zheng ◽  
Mary K. Hasting ◽  
Xiaodong Zhang ◽  
Andrew Coggan ◽  
Hongyu An ◽  
...  
Keyword(s):  
Pilot Study ◽  
Regional Perfusion ◽  
Calf Muscles

scholarly journals Variability of neural activation during walking in humans: short heels and big calves

2011 ◽  
Vol 7 (4) ◽  
pp. 539-542 ◽  
Author(s):  
A. N. Ahn ◽  
J. K. Kang ◽  
M. A. Quitt ◽  
B. C. Davidson ◽  
C. T. Nguyen
Keyword(s):  
Neural Control ◽  
Calf Muscle ◽  
Medial Gastrocnemius ◽  
Muscle Size ◽  
Neural Activation ◽  
Neural Signals ◽  
Recruitment Pattern ◽  
Moment Arms ◽  
Different Shapes ◽  
Calf Muscles

People come in different shapes and sizes. In particular, calf muscle size in humans varies considerably. One possible cause for the different shapes of calf muscles is the inherent difference in neural signals sent to these muscles during walking. In sedentary adults, the variability in neural control of the calf muscles was examined with muscle size, walking kinematics and limb morphometrics. Half the subjects walked while activating their medial gastrocnemius (MG) muscles more strongly than their lateral gastrocnemius (LG) muscles during most walking speeds (‘MG-biased’). The other subjects walked while activating their MG and LG muscles nearly equally (‘unbiased’). Those who walked with an MG-biased recruitment pattern also had thicker MG muscles and shorter heel lengths, or MG muscle moment arms, than unbiased walkers, but were similar in height, weight, lower limb length, foot length, and exhibited similar walking kinematics. The relatively less plastic skeletal system may drive calf muscle size and motor recruitment patterns of walking in humans.

Role of the posterior calf muscles in normal gait.

1978 ◽  
Vol 60 (4) ◽  
pp. 465-472 ◽  
Author(s):  
S R Simon ◽  
R A Mann ◽  
J L Hagy ◽  
L J Larsen
Keyword(s):  
Normal Gait ◽  
Calf Muscles

scholarly journals Tibial osteomyelitis with cold abscess within calf muscles in a toddler referred with suspected oligoarthritis to rheumatology clinic

2018 ◽  
pp. bcr-2018-227092
Author(s):  
Dhanarathnamoorthy Vetrichelvan ◽  
Umapathy Pasupathy ◽  
Elayaraja Sivaprakasam ◽  
Mahesh Janarthanan
Keyword(s):  
Rheumatology Clinic ◽  
Cold Abscess ◽  
Calf Muscles
Sign in / Sign up

Export Citation Format

Share Document