The relationship of force output characteristics during a sit-to-stand movement with lower limb muscle mass and knee joint extension in the elderly

2010 ◽  
Vol 50 (3) ◽  
pp. e46-e50 ◽  
Author(s):  
Takayoshi Yamada ◽  
Shinichi Demura
Keyword(s):  
Knee Joint ◽  
Lower Limb ◽  
The Elderly ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Force Output ◽  
Sit To Stand ◽  
Output Characteristics ◽  
Relationship Of ◽  
The Relationship

scholarly journals The Relationship of Lower Limb Muscle Strength and Knee Joint Hyperextension during the Stance Phase of Gait in Hemiparetic Stroke Patients

2011 ◽  
Vol 17 (3) ◽  
pp. 150-156 ◽  
Author(s):  
Allison Cooper ◽  
Ghalib Abdulllah Alghamdi ◽  
Mohammed Abdulrahman Alghamdi ◽  
Abdulrahman Altowaijri ◽  
Susan Richardson
Keyword(s):  
Muscle Strength ◽  
Knee Joint ◽  
Lower Limb ◽  
Stance Phase ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Stroke Patients ◽  
Hemiparetic Stroke ◽  
Relationship Of ◽  
The Relationship

scholarly journals Relationship between lower-limb muscle strength and frailty among elderly people

2012 ◽  
Vol 130 (2) ◽  
pp. 102-108 ◽  
Author(s):  
Fernanda Sotello Batista ◽  
Grace Angelica de Oliveira Gomes ◽  
Anita Liberalesso Neri ◽  
Maria Elena Guariento ◽  
Fernanda Aparecida Cintra ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Elderly People ◽  
Lower Limb ◽  
The Elderly ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Convenience Sample ◽  
Stand Test ◽  
Sit To Stand ◽  
Frailty Criteria

CONTEXT AND OBJECTIVE: Sarcopenia is the main factor involved in the development of frailty syndrome. The aims here were to investigate relationships between lower-limb muscle strength and the variables of sex, age and frailty criteria; compare lower-limb muscle strength with each frailty criterion; and assess the power of each criterion for estimating the risk of frailty among elderly outpatients. DESIGN AND SETTING: Cross-sectional study at the Geriatrics Outpatient Clinic of a university hospital in Campinas. METHOD: A non-probabilistic convenience sample of 150 elderly people of both sexes who were followed up as outpatients was assessed. Sociodemographic data (sex and age) and physical health data (frailty criteria and the five-times sit-to-stand test) were gathered. Descriptive, comparative and multivariate logistic regression analyses were performed. RESULTS: The majority of the elderly people (77.3%) were 70 years of age or over, with predominance of females (64.2%) and had a low score for the five-times sit-to-stand test (81.4% scored 0 or 1); 55.3% of the elderly people presented three or more frailty criteria. A significant association was found between lower-limb muscle strength and the variables of age and number of frailty criteria. CONCLUSIONS: Lower levels of lower-limb muscle strength were associated with advanced age and greater presence of signs of frailty. Moreover, lower-limb muscle strength was also associated with the criteria of reduced walking speed criteria and hand-grip strength.

scholarly journals Clinimetric properties of the one‐leg sit‐to‐stand test in examining unilateral lower limb muscle strength among young adults

2020 ◽  
Vol 74 (9) ◽  
Author(s):  
Surachart Thongchoomsin ◽  
Sunee Bovonsunthonchai ◽  
Leonard Joseph ◽  
Samatchai Chamnongkich
Keyword(s):  
Young Adults ◽  
Muscle Strength ◽  
Lower Limb ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Stand Test ◽  
Sit To Stand ◽  
The One

scholarly journals Characteristics of Lower Limb Muscle Activity in Elderly Persons After Ergometric Exercise

2020 ◽  
Vol 6 ◽  
pp. 233372142097980
Author(s):  
Kenichi Kaneko ◽  
Hitoshi Makabe ◽  
Kazuyuki Mito ◽  
Kazuyoshi Sakamoto ◽  
Yoshiya Kawanori ◽  
...  
Keyword(s):  
Lower Limb ◽  
Muscle Activity ◽  
The Elderly ◽  
Elderly Subjects ◽  
Elderly Persons ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Lower Limb Muscles ◽  
The Mean ◽  
Young Subjects

This study examined the characteristics of lower limb muscle activity in elderly persons after ergometric pedaling exercise for 1 month. To determine the effect of the exercise, surface electromyography (SEMG) of lower limb muscles was subjected to Daubechies-4 wavelet transformation, and mean wavelet coefficients were compared with the pre-exercise coefficients and the post-exercise coefficients in each wavelet level. The characteristics of muscle activity after pedaling exercise were also compared between the elderly subjects and young subjects. For the elderly subjects, the mean wavelet coefficients were significantly decreased in the tibialis anterior and the gastrocnemius medialis at wavelet levels of 3, 4, and 5 (125–62.5, 62.5–31.25, and 31.25–15.625 Hz, respectively), by pedaling exercise. However, the mean power of wavelet levels of 2 and 3 (250–125 and 125–62.5 Hz) within the rectus femoris and the biceps femoris were significantly increased in the young subjects. The effect of pedaling exercise is different from the effects of heavy-resistance training. It was suggested that the muscle coordination, motor unit (MU) firing frequency, and firing fiber type of lower limb muscles are changed with the different characteristics between elderly and young persons by pedaling exercise for 1 month.

scholarly journals Effects of slightly-weighted shoe intervention on lower limb muscle mass and gait patterns in the elderly

2012 ◽  
Vol 61 (5) ◽  
pp. 469-477 ◽  
Author(s):  
Masahiro Ikenaga ◽  
Yosuke Yamada ◽  
Rikako Mihara ◽  
Tomoe Yoshida ◽  
Keisuke Fujii ◽  
...  
Keyword(s):  
Muscle Mass ◽  
Lower Limb ◽  
The Elderly ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Gait Patterns

scholarly journals The effect of support surface and footwear condition on postural sway and lower limb muscle action of the old people

2019 ◽  
Author(s):  
Meizhen Huang ◽  
Kit-lun Yick ◽  
Sun-pui Ng ◽  
Joanne Yip ◽  
Roy Cheung
Keyword(s):  
Lower Limb ◽  
Postural Stability ◽  
Muscle Activation ◽  
Postural Sway ◽  
The Elderly ◽  
The Body ◽  
Support Surface ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Age Related

Abstract Background: Diminished somatosensory function and lower plantar cutaneous sensitivity have been identified as a critical age-related change, which is related to postural instability in the older population. Footwear is suggested that can modulate the postural stability by altering the interface between the foot sole and the ground. However, it is unclear whether this footwear effect could also influence lower limb muscle activation for the elderly. This study aimed to investigate the footwear insole texture and supporting surface condition on static postural stability and lower limb muscle activation for healthy older people. Methods: This is a single-session study with repeated measurements. Twenty-three healthy older female stood on the firm (i.e., concrete floor) and foam surfaces with their eyes open in the three footwear conditions, namely barefoot, plain shoes and nodulous insole shoes, for 30 seconds. Static postural sway and muscle activation of biceps femoris (BF), vastus lateralis (VL), tibialis anterior (TA), and lateral gastrocnemius (LG) of the dominant leg were measured during each testing condition. Results: compared to firm surface, standing on the foam could significantly increase the body sway and lower limb muscle activation (p<0.05); compared to barefoot, when standing on the foam, wearing footwear significantly decreased the VL and TA muscle activation and minimize the postural sway in ML and AP direction, while the influence is larger for the nodulous shoes compared to the plain shoes. A positive correlation was observed between the lower limb muscle activation and AP (r=0.327-0.389, p<0.001) and total sway path length (r=0.317-0.427, p<0.001). Conclusions: footwear could improve the postural stability and decease the fall risk comparing to barefoot when the somatosensory input is in disturbance, while the improvement is larger when wearing nodulous insole footwear for the elderly.

Swing Phase Mechanics of Maximal Velocity Sprints—Does Isokinetic Lower-Limb Muscle Strength Matter?

2020 ◽  
pp. 1-11
Author(s):  
Tobias Alt ◽  
Igor Komnik ◽  
Jannik Severin ◽  
Yannick T. Nodler ◽  
Rita Benker ◽  
...  
Keyword(s):  
Knee Joint ◽  
Equilibrium Point ◽  
Hip Joint ◽  
Lower Limb ◽  
Dynamic Control ◽  
Swing Phase ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Joint Mechanics ◽  
Sprint Velocity

Purpose: Concentric hip and eccentric knee joint mechanics affect sprint performance. Although the biarticular hamstrings combine these capacities, empirical links between swing phase mechanics and corresponding isokinetic outcome parameters are deficient. This explorative study aimed (1) to explain the variance of sprint velocity, (2) to compare maximal sprints with isokinetic tests, (3) to associate swing phase mechanics with isokinetic parameters, and (4) to quantify the relation between knee and hip joint swing phase mechanics. Methods: A total of 22 sprinters (age = 22 y, height = 1.81 m, weight = 77 kg) performed sprints and eccentric knee flexor and concentric knee extensor tests. All exercises were captured by 10 (sprints) and 4 (isokinetics) cameras. Lower-limb muscle balance was assessed by the dynamic control ratio at the equilibrium point. Results: The sprint velocity (9.79 [0.49] m/s) was best predicted by the maximal knee extension velocity, hip mean power (both swing phase parameters), and isokinetic peak moment of concentric quadriceps exercise (R2 = 60%). The moment of the dynamic control ratio at the equilibrium point (R2 = 39%) was the isokinetic parameter with the highest predictive power itself. Knee and hip joint mechanics affected each other during sprinting. They were significantly associated with isokinetic parameters of eccentric hamstring tests, as well as moments and angles of the dynamic control ratio at the equilibrium point, but restrictedly with concentric quadriceps exercise. The maximal sprints imposed considerably higher loads than isokinetic tests (eg, 13-fold eccentric knee joint peak power). Conclusions: Fast sprinters demonstrated distinctive knee and hip mechanics in the late swing phase, as well as strong eccentric hamstrings, with a clear association to the musculoarticular requirements of the swing phase in sprinting. The transferability of isokinetic knee strength data to sprinting is limited inter alia due to different hip joint configurations. However, isokinetic tests quantify specific sprint-related muscular prerequisites and constitute a useful diagnostic tool due to their predicting value to sprint performance.

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 The relationship between lower limb muscle strength and lower extremity function in HIV disease

2017 ◽  
Vol 73 (1) ◽  
Author(s):  
Peter C. Mhariwa ◽  
Hellen Myezwa ◽  
Mary L. Galantino ◽  
Douglas Maleka
Keyword(s):  
Muscle Strength ◽  
Lower Extremity ◽  
Lower Limb ◽  
Lower Limb Muscle ◽  
Limb Muscle ◽  
Plantar Flexors ◽  
Lower Extremity Function ◽  
Extremity Function ◽  
The Relationship ◽  
Hiv Negative

Background: Human immunodeficiency virus (HIV) negatively impacts muscle strength and function. This study aimed to establish the relationship between lower limb muscle strength and lower extremity function in HIV disease.Method: A cross-sectional study was undertaken with a sample of 113 HIV-positive participants. Lower limb muscle strength and self-reported function were established using dynamometry and the Lower Extremity Functional Scale (LEFS), respectively. Muscle strength and functional status were established in a subset of 30 HIV-negative participants to determine normative values.Results: Muscle strength for participants with HIV ranged from an ankle dorsiflexion mean of 9.33 kg/m2 to 15.79 kg/m2 in hip extensors. In the HIV-negative group, ankle dorsiflexors recorded 11.17 kg/m2, whereas hip extensors were the strongest, generating 17.68 kg/m2. In the HIV-positive group, linear regression showed a positive relationship between lower limb muscle strength and lower extremity function (r = 0.71, p = 0.00). Fifty per cent of the changes in lower extremity function were attributable to lower limb muscle strength. A simple linear regression model showed that lower limb ankle plantar flexors contributed the most to lower extremity function in this cohort, contrary to the literature which states that hip and trunk muscles are the most active in lower limb functional activities.Conclusion: Lower extremity strength impacts perceived function in individuals stabilised on antiretroviral therapy for HIV disease. These findings demonstrate that ankle plantar flexors produce more force over hip flexors. Careful attention should be paid to the implications for strength training in this population.

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