Characteristics of muscle contraction of the rectus femoris using Tensiomyography by sex in healthy adolescents: a Cross-Sectional Study

2021 ◽  
Author(s):  
Yasuaki Kusumoto ◽  
Hayato Goto ◽  
Kouhei Chiba ◽  
Sakiko Onishi ◽  
Junko Tsuchiya
Keyword(s):  
Muscle Contraction ◽  
Muscle Mass ◽  
Lower Limb ◽  
Muscle Function ◽  
Rectus Femoris ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Maximum Displacement ◽  
Thigh Circumference ◽  
Function Assessment

Abstract Background Tensiomyography (TMG) is a non-invasive instrument for measuring mechanical muscle contraction characteristics, and measures the maximum displacement of the muscle belly in the vertical direction and the time needed to achieve this from electrical stimulation. There have only been few reports of TMG on general healthy adults. A systematic review on TMG reported a low proportion of female participants with a small sample size. Therefore, it is unclear whether there is a difference in TMG parameters by sex and between the dominant and non-dominant feet. Furthermore, the relationship between the TMG parameters and the evaluations commonly used in clinical practice has not been clarified. This study aimed to clarify the characteristics of muscle contraction of the rectus femoris using tensiomyography by sex among healthy adolescents and its relationship with muscle function evaluation, such as lower limb muscle mass and muscle strength. The subjects included 91 healthy university students. The measurement items included TMG, lower limb muscle mass, rectus femoris thickness, isometric knee joint extension torque, and thigh circumference. Results There was a main effect on sex in all parameters (ρ ≤ 0.05). In terms of TMG parameters, maximum displacement (Dm) in the non-dominant foot was significantly lower in women. The correlation between TMG parameters for males and females and lower limb muscle mass, muscle thickness, joint torque, and thigh circumference had a significant correlation with some TMG parameters and lower limb muscle mass (ρ ≤ 0.05). The absolute value of the correlation coefficient was overall low with 0.27 ~0.45. Conclusion In healthy adolescents, there was a difference by sex in TMG parameters and a weak correlation between TMG parameters and the lower limb muscle mass. TMG parameter evaluation may indicate a different function compared with the traditional muscle function assessment used in clinical practice. The TMG parameter is considered as a unique evaluation method for neuromuscular function assessment.

Analysis of Lower Limb Muscle Function in Ergometer Rowing

1988 ◽  
Vol 4 (4) ◽  
pp. 315-325 ◽  
Author(s):  
J.-M. John Wilson ◽  
D. Gordon E. Robertson ◽  
J. Peter Stothart
Keyword(s):  
Lower Limb ◽  
Muscle Function ◽  
Tibialis Anterior ◽  
Vastus Lateralis ◽  
Gluteus Maximus ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Peak Force ◽  
Lower Limb Muscle ◽  
Limb Muscle

In an effort to seek further understanding of lower limb muscle function in the rowing movement, an electromyographic analysis was undertaken of rowers rowing on a Gjessing ergometer. A strain gauged transducer was inserted in the ergometer linkage between handle and flywheel to detect pulling force. Electrodes were placed on the following lower limb muscles: gluteus maximus, biceps femoris, rectus femoris, vastus lateralis, gastrocnemius, and tibialis anterior. Linear envelope electromyograms from each muscle and the force signals were sampled synchronously at 50 Hz. The results indicated that all six muscles were active from catch to finish of the drive phase. Biceps femoris, gluteus maximus, gastrocnemius, and vastus lateralis all began their activity at or just prior to catch and reached maximal excitation near peak force of the stroke. Rectus femoris and tibialis anterior activity began prior to the catch and reached maximal excitation subsequent to peak force. The coactivation of the five leg muscles, of which four were biarticular, included potentially antagonistic actions that would cancel each other’s effects. Clearly, however, other explanations must be considered. Both gastrocnemius and biceps femoris have been shown to act as knee extensors and may do so in the case of the rowing action. Furthermore, rectus femoris may act with unchanging length as a knee extensor by functioning as a rigid link between the pelvis and tibia. In this manner, energy created by the hip extensors is transferred across the knee joint via the isometrically contracting rectus femoris muscle.

scholarly journals Association of lower limb muscle mass and energy expenditure with visceral fat mass in healthy men

2014 ◽  
Vol 6 (1) ◽  
Author(s):  
Shusuke Yagi ◽  
Muneyuki Kadota ◽  
Ken-ichi Aihara ◽  
Koji Nishikawa ◽  
Tomoya Hara ◽  
...  
Keyword(s):  
Energy Expenditure ◽  
Muscle Mass ◽  
Fat Mass ◽  
Visceral Fat ◽  
Lower Limb ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Healthy Men

Lower limb muscle mass is associated with insulin resistance more than lower limb muscle strength in non‐diabetic older adults

2019 ◽  
Vol 19 (12) ◽  
pp. 1254-1259
Author(s):  
Toshiaki Seko ◽  
Hiroshi Akasaka ◽  
Masayuki Koyama ◽  
Nobuaki Himuro ◽  
Shigeyuki Saitoh ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Older Adults ◽  
Muscle Strength ◽  
Muscle Mass ◽  
Lower Limb ◽  
Lower Limb Muscle ◽  
Limb Muscle

scholarly journals Effects of Pulmonary Rehabilitation on Gait Characteristics in Patients with COPD

2019 ◽  
Vol 8 (4) ◽  
pp. 459 ◽  
Author(s):  
Wai-Yan Liu ◽  
Kenneth Meijer ◽  
Jeannet Delbressine ◽  
Paul Willems ◽  
Emiel Wouters ◽  
...  
Keyword(s):  
Lower Limb ◽  
Muscle Function ◽  
Pulmonary Rehabilitation ◽  
Forced Expiratory Volume ◽  
Chronic Obstructive ◽  
Poor Responders ◽  
Stride Time ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Gait Characteristics

Pulmonary rehabilitation (PR) improves lower-limb muscle function in patients with chronic obstructive pulmonary disease (COPD). However, it remains unclear whether patients improve gait characteristics, in particular stride-to-stride fluctuations that are associated with fall risks. This study aims to identify whether, and to what extent, PR affects positively gait characteristics in COPD. In this prospective observational study, 44 COPD patients (aged: 62 ± 7 years; Forced expiratory volume in 1 s 56 ± 20% predicted) performed self-paced, treadmill 6-min-walk tests (Gait Real-time Analysis Interactive Lab) before and after PR, while spatiotemporal parameters and center of mass position were recorded (100 Hz, Vicon Nexus). Standard deviation, coefficient of variation, predictability (sample entropy), and consistency in organization (local divergence exponent) were calculated. Sub-analysis was performed to identify gait differences between good and poor responders (<30 m change in a 6-min-walk distance). Patients demonstrated shorter stride times (p = 0.001) and improved lower-limb muscle function (p < 0.001) following PR. The good responders had a greater increase in stride length (p < 0.001) and a greater decrease in stride time (p < 0.001) compared to the poor responders. Current PR improved stride time in patients, while movement patterns within stride-to-stride fluctuations did not change. Training programs specifically targeting balance issues and gait function may be beneficial in improving gait characteristics in COPD.

Effects of age and limb dominance on upper and lower limb muscle function in healthy males and females aged 40–80 years

2010 ◽  
Vol 28 (6) ◽  
pp. 667-677 ◽  
Author(s):  
Massimiliano Ditroilo ◽  
Roberta Forte ◽  
Piero Benelli ◽  
Danilo Gambarara ◽  
Giuseppe De vito
Keyword(s):  
Lower Limb ◽  
Muscle Function ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Males And Females ◽  
Limb Dominance ◽  
Healthy Males

PP050-SUN UPPER AND LOWER LIMB MUSCLE MASS IN PATIENTS UNDERGOING SURGERY FOR UPPER Gl CANCER

2011 ◽  
Vol 6 (1) ◽  
pp. 42
Author(s):  
A.J. Macdonald ◽  
M. Esposito ◽  
C. Gray ◽  
N.A. Stephens ◽  
C. Greig ◽  
...  
Keyword(s):  
Muscle Mass ◽  
Lower Limb ◽  
Lower Limb Muscle ◽  
Limb Muscle
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