Contractile properties of two human lower limb muscle groups: The quadriceps and triceps Surae

1998 ◽  
Vol 8 (3) ◽  
pp. 227-237
Author(s):  
S.K. Hunter ◽  
M.W. Thompson
Keyword(s):  
Lower Limb ◽  
Contractile Properties ◽  
Triceps Surae ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Muscle Groups

RELATIONSHIP BETWEEN ISOMETRIC STRENGTH OF SIX LOWER LIMB MUSCLE GROUPS AND MOTOR SKILLS AMONG NURSING HOME RESIDENTS

2015 ◽  
pp. 1-4
Author(s):  
F. BUCKINX ◽  
J.L. CROISIER ◽  
J.Y. REGINSTER ◽  
J. PETERMANS ◽  
E. GOFFART ◽  
...  
Keyword(s):  
Nursing Home ◽  
Muscle Strength ◽  
Motor Skills ◽  
Lower Limb ◽  
Nursing Home Residents ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Muscle Groups ◽  
The Relationship ◽  
Isometric Muscle

This research aimed to assess the correlation between isometric muscle strength of the lower limb and motor skills. This is a cross sectional study performed among volunteer nursing home residents included in the SENIOR (Sample of Elderly Nursing home Individuals: an Observational Research) cohort. The present analysis focused on isometric muscle strength of 6 lower limb muscle groups (i.e. knee extensors, knee flexors, hip abductors, hip extensors, ankle flexors and ankle extensors), assessed using a validated hand-held dynamometer (i.e. the MicroFET2 device), and motor skills evaluated using the Tinetti test, the Timed Up and Go test, the Short Physical Performance Battery test (SPPB) and the walking speed. The relationship between all these parameters was tested by means of a multiple correlation, adjusted on age, sex and body mass index. 450 nursing home residents (69.8% of women) with a mean age of 83.1±9.4 years were included in this study. Our results showed a significant inverse correlation between lower limb muscle strength and the time required to perform the TUG test or gait speed, except for ankle flexors and ankle extensors. The relationship between the Tinetti test or the SPPB score, and lower limb muscle strength was significant, except for ankle flexors and ankle extensors. In conclusion, a positive association between lower limb muscle strength of the four main muscle groups and motor skills of the elderly nursing residents was found in this research. Therefore, special attention should be given to these muscle groups during rehabilitation programs.

scholarly journals A systematic review of the effect of footwear, foot orthoses and taping on lower limb muscle activity during walking and running

2019 ◽  
Vol 43 (6) ◽  
pp. 576-596 ◽  
Author(s):  
Joanna Reeves ◽  
Richard Jones ◽  
Anmin Liu ◽  
Leah Bent ◽  
Emma Plater ◽  
...  
Keyword(s):  
Lower Limb ◽  
Muscle Activity ◽  
Muscle Activation ◽  
Frontal Plane ◽  
Triceps Surae ◽  
Tibialis Posterior ◽  
Foot Orthoses ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Therapeutic Benefits

Background: External devices are used to manage musculoskeletal pathologies by altering loading of the foot, which could result in altered muscle activity that could have therapeutic benefits. Objectives: To establish if evidence exists that footwear, foot orthoses and taping alter lower limb muscle activity during walking and running. Study design: Systematic literature review. Methods: CINAHL, MEDLINE, ScienceDirect, SPORTDiscus and Web of Science databases were searched. Quality assessment was performed using guidelines for assessing healthcare interventions and electromyography methodology. Results: Thirty-one studies were included: 22 related to footwear, eight foot orthoses and one taping. In walking, (1) rocker footwear apparently decreases tibialis anterior activity and increases triceps surae activity, (2) orthoses could decrease activity of tibialis posterior and increase activity of peroneus longus and (3) other footwear and taping effects are unclear. Conclusion: Modifications in shoe or orthosis design in the sagittal or frontal plane can alter activation in walking of muscles acting primarily in these planes. Adequately powered research with kinematic and kinetic data is needed to explain the presence/absence of changes in muscle activation with external devices. Clinical relevance This review provides some evidence that foot orthoses can reduce tibialis posterior activity, potentially benefitting specific musculoskeletal pathologies.

Reliability and validity of hand-held dynamometry for assessing lower limb muscle strength

2021 ◽  
pp. 1-10
Author(s):  
Tjaša Lipovšek ◽  
Alan Kacin ◽  
Urška Puh
Keyword(s):  
Muscle Strength ◽  
Lower Limb ◽  
Reliability And Validity ◽  
Knee Extensors ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Rater Reliability ◽  
Extensor Muscles ◽  
Good For ◽  
Muscle Groups

BACKGROUND: Hand-held dynamometry (HHD) is used to assess muscle strength in various patient populations, but many variations in protocols exist. OBJECTIVE: First, to systematically develop a protocol of HHD for all lower limb muscle groups and evaluate intra-rater reliability; second, to validate HHD with fixed dynamometry for the knee flexor and extensor muscles. METHODS: Thirty healthy young adults (women: men – 15:15) participated in two testing sessions. HHD of 12 lower limb muscle groups was performed in both sessions, while fixed dynamometry of knee muscle groups was performed only in the second session. RESULTS: The intra-rater reliability of HHD was good for five muscle groups and excellent for seven muscle groups (ICC3, k= 0.80–0.96). The criterion validity of HHD ranged from very good to excellent for the knee flexors (r= 0.77–0.89) and from good to very good for the knee extensors (r= 0.65–0.78). However, peak moment values for the knee extensor muscles were underestimated by 32% (p< 0.001). CONCLUSIONS: The proposed HHD protocol provides reliable and valid measurements of lower limb muscle isometric strength in healthy adults, which may also be used to test patients with mild muscle strength deficits. However, possible underestimation of absolute strength must be considered when interpreting the results of knee extensors or other large muscles.

scholarly journals Stroke Sarcopenia Patients Cause Weakness and Atrophy in the Knee and Ankle Joints

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 214-214
Author(s):  
Yamanoi Jyunya
Keyword(s):  
Knee Joint ◽  
Ankle Joint ◽  
Muscle Weakness ◽  
Muscle Atrophy ◽  
Lower Limb ◽  
Chronic Stroke ◽  
Triceps Surae ◽  
Stroke Survivors ◽  
Lower Limb Muscle ◽  
Limb Muscle

Abstract Objectives Chronic stroke survivors tend to be inactive, often with sarcopenia, and have decreased physical function and activities of daily living. Muscle atrophy and weakness differ between sarcopenia patients and stroke patients. Therefore, it is difficult to evaluate physiotherapy and intervention for sarcopenic patients with stroke. The purpose of this study was to identify muscles that cause muscle weakness and muscle atrophy in stroke sarcopenia patients. Methods The subjects were 117 chronic stroke survivors who were 65 years or older. Subjects were determined using the criteria of the Asian Working Group on Sarcopenia in 2019 to determine the presence of sarcopenia and were classified into sarcopenia group (SG, n = 60) and non sarcopenia group (nSG, n = 57). Atrophy assessments obtained unaffected lower limb muscle thickness (iliopsoas, gluteus maximus, gluteus medius, hamstrings, quadriceps femoris, tibialis anterior, triceps surae) using B-mode of transverse ultrasound imaging. Strength assessments obtained unaffected lower limb muscle strength (flexion, extension, abduction, adduction, external rotation and internal rotation of hip joint, flexion and extension of knee joint, planter flexion and dorsiflexion of ankle joint) using handheld dynamometer. We conducted a Student's t-test to compare the two groups. A P-value of &lt;0.05 was considered to show statistical significance for all analyses. When the significance level is less than 0.05, the power is also calculated, and it is considered that the significant difference can be secured when P &lt; 0.05 and power &gt;0.8. We conducted with the approval of the ethics committee of Aichi Saiseikai Rehabilitation Hospital (201,908). Results SG had muscle atrophy in all muscles compared to nSG (P &lt; 0.05, power &gt;0.8). SG had muscle weakness in all joint direction compared to nSG (P &lt; 0.05, power &gt;0.8). In particular, extension of knee joint and planter flexion of ankle joint muscle weakness, quadriceps femoris and triceps surae muscle atrophy occurred (P &lt; 0.01, power &gt;0.8). Conclusions Assessment and intervention of skeletal muscle in stroke sarcopenia patients should focus on the knee joint and ankle joint. Funding Sources The authors declare no conflicts of interest associated with this manuscript.

Reliability of a novel procedure to monitor the flexibility of lower limb muscle groups in highly-trained adolescent athletes

2013 ◽  
Vol 14 (1) ◽  
pp. 28-34 ◽  
Author(s):  
François Fourchet ◽  
Olivier Materne ◽  
Cosmin Horobeanu ◽  
Tomas Hudacek ◽  
Martin Buchheit
Keyword(s):  
Lower Limb ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Adolescent Athletes ◽  
Muscle Groups

Long-term use of high-heeled shoes alters the neuromechanics of human walking

2012 ◽  
Vol 112 (6) ◽  
pp. 1054-1058 ◽  
Author(s):  
Neil J. Cronin ◽  
Rod S. Barrett ◽  
Christopher P. Carty
Keyword(s):  
Lower Limb ◽  
Muscle Activation ◽  
Triceps Surae ◽  
Medial Gastrocnemius ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Fascicle Length ◽  
High Heel ◽  
Muscle Fascicle

Human movement requires an ongoing, finely tuned interaction between muscular and tendinous tissues, so changes in the properties of either tissue could have important functional consequences. One condition that alters the functional demands placed on lower limb muscle-tendon units is the use of high-heeled shoes (HH), which force the foot into a plantarflexed position. Long-term HH use has been found to shorten medial gastrocnemius muscle fascicles and increase Achilles tendon stiffness, but the consequences of these changes for locomotor muscle-tendon function are unknown. This study examined the effects of habitual HH use on the neuromechanical behavior of triceps surae muscles during walking. The study population consisted of 9 habitual high heel wearers who had worn shoes with a minimum heel height of 5 cm at least 40 h/wk for a minimum of 2 yr, and 10 control participants who habitually wore heels for less than 10 h/wk. Participants walked at a self-selected speed over level ground while ground reaction forces, ankle and knee joint kinematics, lower limb muscle activity, and gastrocnemius fascicle length data were acquired. In long-term HH wearers, walking in HH resulted in substantial increases in muscle fascicle strains and muscle activation during the stance phase compared with barefoot walking. The results suggest that long-term high heel use may compromise muscle efficiency in walking and are consistent with reports that HH wearers often experience discomfort and muscle fatigue. Long-term HH use may also increase the risk of strain injuries.

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