Relationships between Muscle Strength and Cross-Sectional Area in Healthy Individuals

1982 ◽  
Vol 63 (3) ◽  
pp. 5P-5P ◽  
Author(s):  
R.J. Maughan ◽  
Jennifer S. Watson ◽  
J. Weir
Keyword(s):  
Muscle Strength ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Healthy Individuals ◽  
Cross Sectional

scholarly journals Comparison of Muscle Cross-sectional Area and Lumbar Muscle Strength According to Degenerative Spinal Diseases

2020 ◽  
Vol 22 (2) ◽  
pp. 1-10
Author(s):  
Ji-Hoon Cho ◽  
Ki-Hyuk Lee ◽  
Seung-Taek Lim ◽  
Buong-O Chun
Keyword(s):  
Muscle Strength ◽  
Cross Sectional Area ◽  
Spinal Diseases ◽  
Sectional Area ◽  
Multifidus Muscle ◽  
Cross Sectional ◽  
Total Group ◽  
Male Group ◽  
The Difference ◽  
Lumbar Extension

OBJECTIVES The purpose of this study was to investigate the difference in the cross - sectional area (CSA) of multifidus and Iliopsoas muscles and the lumbar extension muscle strength according to degenerative spinal diseases (LHI; lumbar herniation of intervertebral disc group, SS; spinal stenosis group, S; spondylolisthesis group).METHODS The CSA of multifidus and Iliopsoas muscles size were measured by PACS(Picture Achiving and Communication System) using MRI at the L4/5 level and lumbar extension muscle strength (72˚, 60˚, 48˚, 36˚, 24˚, 12˚, 0˚) was measured using lumbar extension machine(MedX) in 97 patients of degenerative spinal diseases(male: 57, female: 40). The collected data were analyzed by one-way ANOVA using the SPSS program.RESULTS The results of this study showed that the CSA of total and right multifidus muscle in the LHI was significantly higher than that of the S (p <.05; p <.05) in the male group. The difference between the left and right CSA of multifidus in the LHI group was significantly higher than that of the SS (p <.05) in the male group (p <.05) and total group (p <.05). The CSA of iliopsoas muscle in the S was significantly higher than that of the LHI in the male and total group (p <.05; p <.05). In case of lumbar extension muscle strength, the S showed significantly higher muscle strength at 36 and 48 degrees than that of the SS in the male group. In the total group, LHI showed significantly higher muscle strength at 60 degrees of lumbar extension muscle strength than that of the S.CONCLUSION Multifidus muscle appears to be a key factor in prevention and treatment intervention in low back pain patients. In particular, in the case of S group, exercise therapy for strengthening the multifidus muscle is need for the rehabilitation.

scholarly journals Cross-sectional area of the paraspinal muscles and its association with muscle strength among fighter pilots: a 5-year follow-up

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Tuomas Honkanen ◽  
Matti Mäntysaari ◽  
Tuomo Leino ◽  
Janne Avela ◽  
Liisa Kerttula ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Paraspinal Muscles ◽  
Cross Sectional

MUSCLE STRENGTH AND THIGH MUSCLE CROSS-SECTIONAL AREA IN MASTERS POWERLIFTERS.

1995 ◽  
Vol 27 (Supplement) ◽  
pp. S139 ◽  
Author(s):  
C. Fort ◽  
J. M. Garcier ◽  
J. F. Viallet ◽  
G. Vanneuville ◽  
E. Van Praagh
Keyword(s):  
Muscle Strength ◽  
Cross Sectional Area ◽  
Thigh Muscle ◽  
Sectional Area ◽  
Cross Sectional ◽  
Muscle Cross Sectional Area

Sex-based differences in skeletal muscle function and morphology with short-term limb immobilization

2005 ◽  
Vol 99 (3) ◽  
pp. 1085-1092 ◽  
Author(s):  
Nobuo Yasuda ◽  
Elisa I. Glover ◽  
Stuart M. Phillips ◽  
Robert J. Isfort ◽  
Mark A. Tarnopolsky
Keyword(s):  
Muscle Strength ◽  
Lean Mass ◽  
Muscle Function ◽  
Knee Extensor ◽  
Quadriceps Femoris ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Short Term ◽  
Cross Sectional ◽  
Time Points

The purpose of this study was to determine the effects of short-term (14-day) unilateral leg immobilization using a simple knee brace (60° flexion)- or crutch-mediated model on muscle function and morphology in men (M, n = 13) and women (W, n = 14). Isometric and isokinetic (concentric-slow, 0.52 rad/s and fast, 5.24 rad/s) knee extensor peak torque was determined at three time points (Pre, Day-2, and Day-14). At the same time points, magnetic resonance imaging was used to measure the cross-sectional area of the quadriceps femoris and dual-energy X-ray absorptiometry scanning was used to calculate leg lean mass. Muscle biopsies were taken from vastus lateralis at Pre and Day-14 for myosin ATPase and myosin heavy chain analysis. Women showed greater decreases (Pre vs. Day-14) compared with men in specific strength (N/cm2) for isometric [M = 3.1 ± 13.3, W = 17.1 ± 15.9%; P = 0.055 (mean ± SD)] and concentric-slow (M = 4.7 ± 11.3, W = 16.6 ± 18.4%; P < 0.05) contractions. There were no immobilization-induced sex-specific differences in the decrease in quadriceps femoris cross-sectional area (M = 5.7 ± 5.0, W = 5.9 ± 5.2%) or leg lean mass (M = 3.7 ± 4.2, W = 2.7 ± 2.8%). There were no fiber-type transformations, and the decreases in type I (M = 4.8 ± 5.0, W = 5.9 ± 3.4%), IIa (M = 7.9 ± 9.9, W = 8.8 ± 8.0%), and IIx (M = 10.7 ± 10.8, W = 10.8 ± 12.1%) fiber areas were similar between sexes. These findings indicate that immobilization-induced loss of knee extensor muscle strength is greater in women compared with men despite a similar extent of atrophy at the myofiber and whole muscle levels after 14 days of unilateral leg immobilization. Furthermore, we have described an effective and safe knee immobilization method that results in reductions in quadriceps muscle strength and size.

Joint hypermobility—is there a correlation between muscle cross sectional area and muscle strength?

Physiotherapy ◽  
2015 ◽  
Vol 101 ◽  
pp. e906-e907
Author(s):  
G. Luder ◽  
M. Haehni ◽  
C. Mueller ◽  
M.L. Verra ◽  
J.-P. Baeyens
Keyword(s):  
Muscle Strength ◽  
Joint Hypermobility ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Muscle Cross Sectional Area
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