The relationship between postural components and muscle strength balance among 9 to 14-year old children

This study aimed to systematically review research investigating the association between hip muscle strength and dynamic knee valgus (DKV). Four databases (MEDLINE, PubMed, CINAHL, and SPORTDiscus) were searched for journal articles published from inception to October 2020. Seven studies investigating the association between hip muscle strength and DKV using a two-dimensional motion analysis system in healthy adults were included. The relationship between hip abductor muscle strength and DKV was negatively correlated in two studies, positively correlated in two studies, and not correlated in three studies. The DKV was associated with reduced hip extensor muscle strength in two studies and reduced hip external rotator muscle strength in two studies, while no correlation was found in three and five studies for each muscle group, respectively. The relationship between hip muscle strength, including abductors, extensors, and external rotators and DKV is conflicting. Considering the current literature limitations and variable methodological approaches used among studies, the clinical relevance of such findings should be interpreted cautiously. Therefore, future studies are recommended to measure the eccentric strength of hip muscles, resembling muscular movement during landing. Furthermore, high-demand and sufficiently challenging functional tasks revealing lower limb kinematic differences, such as cutting and jumping tasks, are recommended for measuring the DKV.

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Total Hip Arthroplasty: The Relationship between Posterolateral Reconstruction, Abductor Muscle Strength, and Femoral Offset

Journal of Orthopaedic Surgery ◽

10.1177/230949900401200205 ◽

2004 ◽

Vol 12 (2) ◽

pp. 164-167 ◽

Cited By ~ 51

Author(s):

T Yamaguchi ◽

M Naito ◽

I Asayama ◽

T Ishiko

Keyword(s):

Muscle Strength ◽

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Abductor Muscle ◽

Femoral Offset ◽

Total Hip ◽

The Relationship

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Circulating levels of IGF1 are associated with muscle strength in middle-aged- and oldest-old women

Acta Endocrinologica ◽

10.1530/eje-10-0703 ◽

2011 ◽

Vol 164 (2) ◽

pp. 189-196 ◽

Cited By ~ 37

Author(s):

Diana G Taekema ◽

Carolina H Y Ling ◽

Gerard Jan Blauw ◽

Carel G Meskers ◽

Rudi G J Westendorp ◽

...

Keyword(s):

Muscle Strength ◽

Physical Performance ◽

Handgrip Strength ◽

Oldest Old ◽

Muscle Growth ◽

Serum Levels ◽

Middle Aged ◽

Cross Sectional ◽

The Relationship ◽

Circulating Levels

ObjectiveIn aging populations, poor handgrip strength has been associated with physical disability and mortality. IGF1 is an important mediator of muscle growth and regeneration affecting muscle function. We studied the relationship between circulating levels of IGF1, its binding protein 3 (IGFBP3), and handgrip strength and physical performance in middle-aged- and oldest-old subjects.DesignCross-sectional analysis in two different cohorts composed of middle-aged- (n=672, mean 63.9±6.7 years) and oldest-old subjects (n=272, all 89 years).MethodsHandgrip strength, functional performance and ability, and serum levels of IGF1 and IGFBP3 were measured in all subjects and analyzed by linear regression for men and women separately.ResultsIGF1 and IGFBP3 levels declined with chronological age and were positively associated with handgrip strength in middle-aged- and oldest-old women (both, P<0.05), but not in men of either age group. Furthermore, higher serum levels of IGF1 were associated with slower walking speed in oldest-old men (P=0.012), and serum levels of IGFBP3 were positively associated with activities of daily living in the oldest-old women (P=0.002).ConclusionThe significant relationship between IGF1 levels and muscle strength found in women but not in men suggests a gender-specific influence of IGF1 on muscle strength. Further studies are necessary to test the relationship with physical performance.

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The relationship between isokinetic and isometric knee muscle strength and maximal step-up height after stroke: A pilot study

Isokinetics and Exercise Science ◽

10.3233/ies-150574 ◽

2015 ◽

Vol 23 (3) ◽

pp. 143-149

Author(s):

Håkan Carlsson ◽

Jan Lexell ◽

Christina Brogårdh

Keyword(s):

Pilot Study ◽

Muscle Strength ◽

Knee Muscle ◽

The Relationship ◽

Knee Muscle Strength

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The relationship between second-to-fourth digit ratio (2D:4D), muscle strength and body composition to bone mineral density in young women

Kinesiology ◽

10.26582/k.51.2.8 ◽

2019 ◽

Vol 51 (2) ◽

pp. 238-245

Author(s):

Hamid Arazi ◽

Ehsan Eghbali

Keyword(s):

Body Composition ◽

Muscle Strength ◽

Young Women ◽

Upper Body ◽

Lower Body ◽

Fat Percentage ◽

Mineral Density ◽

Body Strength ◽

Lower Body Strength ◽

The Relationship

2D:4D ratio is determined by balance between androgens and estrogens. Low level estrogen reduces bone mineral density (BMD) and incurs negative changes to bone microarchitecture, increasing the risk of osteoporosis and, as a consequence, fracture risk in women. The purpose of this study was to investigate the relationship between 2D:4D, muscle strength and body composition to BMD in young women. One hundred twenty-seven young women (age range 24-36 years) voluntarily participated in this study. Lengths of the second (index) and fourth (ring) fingers, upper and lower body strength and body composition (body mass index, BMI; waist to hip ratio, WHR) and body fat percentage were estimated. Also, blood levels of calcium and 25-hydroxyvitamin D (25OHD) were evaluated and dual-energy X-ray absorptiometry device was used to measure BMD in the lumbar spine (LS) and femoral neck (FN). The results showed that digit ratios, upper body and lower body muscle strength, BMI and fat percentage had a positive relationship with LS and FN BMD (LS BMD: r=.47, r=.56, r=.46, r=.34, r=.28, p≤.001, respectively; FN BMD: r=.34, r=.49, r=.51, r=.45, r=.27, p≤.001, respectively). In addition, there was no significant relationship between WHR and BMD of LS and FN (p˃.05). Multiple linear regression analysis showed the upper body strength was a stronger determinant of LS BMD and the lower body strength was a stronger determinant of FN BMD. Based on the results, the researchers concluded that upper and lower body strength, 2D:4D ratios and BMI were important determinants of young women’s BMD. Also, it seemed that some of these factors may be able to help predicting the osteoporosis potential in young women

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The relationship between lower limb maximal and explosive strength and change of direction ability: Comparison of basketball and tennis players, and long-distance runners

PLoS ONE ◽

10.1371/journal.pone.0256347 ◽

2021 ◽

Vol 16 (8) ◽

pp. e0256347

Author(s):

Žiga Kozinc ◽

Darjan Smajla ◽

Nejc Šarabon

Keyword(s):

Muscle Strength ◽

Lower Limb ◽

Trunk Muscles ◽

Distance Runners ◽

Long Distance ◽

Basketball Players ◽

Tennis Players ◽

Change Of Direction ◽

Explosive Strength ◽

The Relationship

Change-of-direction (CoD) ability is an important determinant of athletic performance. Muscle strength is among the most important determinants of CoD ability. However, previous studies investigating the relationship between CoD ability and muscle strength focused mostly on flexor and extensor muscle groups, or used multi-joint exercises, such as jumps, squats or mid-thigh pull. The purpose of the present study was to investigate the relationship between CoD ability and strength of ankle, knee, hip and trunk maximal and explosive strength. The participants (n = 327), consisting of male and female basketball players, tennis players and long-distance runners completed isometric strength assessments and CoD testing (90° and 180° turn tests). The times of both CoD tests were associated with muscle strength (peak torques and the rate of torque development variables), with correlation coefficients being mostly weak to moderate (r = 0.2–0.6). Strength variables explained 33%, 62% and 48% of the variance in the 90° turn task, and 42%, 36% and 59% of the variance in the 180° turn task, in basketball players, long-distance runners and tennis players, respectively. Hip and trunk muscle strength variables were the most prevalent in the regression models, especially hip adduction and abduction strength. Our results suggest that the strength of several lower limb muscles, in particular of the hip abductors and adductors, and trunk muscles, but also hip rotators, extensors and flexors, as well as knee and ankle flexors and extensors should be considered when aiming to improve CoD performance.

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HUBUNGAN KEKUATAN OTOT TUNGKAI DAN KOORDINASI MATA KAKI TERHADAP HASIL SHOOTING BOLA DIAM KE ARAH GAWANG

Jurnal Ilmu Keolahragaan ◽

10.26418/jilo.v2i1.32630 ◽

2019 ◽

Vol 2 (1) ◽

pp. 36

Author(s):

Jack suman Rulis Manurung

Keyword(s):

Regression Analysis ◽

Data Analysis ◽

Muscle Strength ◽

Measurement Techniques ◽

Sampling Technique ◽

Leg Muscle ◽

Relationship Of ◽

The Relationship ◽

Computerized System ◽

Method Of Correlation

The purpose of this research is to find out: 1) The relationship of leg muscle strength to the results of shooting the silent ball towards the goal. 2) Relationship between ankle coordination and the result of shooting the ball silently towards the goal. 3) The relationship between leg muscle strength and ankle coordination towards the results of shooting the ball silently towards the goal.The method used in this study is a method of correlation with test and measurement techniques. Data analysis was carried out by a computerized system with simple or multiple regression analysis. The population in this study were students who participated in extra-curricular football at Pontianak's N 8 High School, totaling 22 people. In this study, there was no sampling technique because it took all the population who participated in 22 extra-curricular activities.The results of the analysis of the data obtained indicate that: 1) There is a relationship between leg muscle strength to the results of shooting the silent ball towards the goal. 2) There is a coordination relationship between the ankles and the result of shooting the silent ball towards the goal. 3) There is a relationship between leg muscle strength and ankle coordination towards the results of shooting the silent ball towards the goal.The amount of donation given by leg muscle strength to the results of silent ball shooting towards the goal was 52.1%, while the coordination contribution of the ankle to the results of silent ball shooting towards the goal was 25.3%. While the magnitude of the contribution given by the two variables, namely leg muscle strength and ankle coordination was 59% of the results of shooting the silent ball towards the goal. It is recommended that in addition to practicing silent ball shooting techniques towards the goal, leg muscle strength should be taken into consideration for the trainer in giving a portion of training.

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Higher Adherence to the Dietary Approaches to Stop Hypertension (DASH) Dietary Pattern Is Inversely Associated with Incidence of Disability Among Puerto Rican Adults

Current Developments in Nutrition ◽

10.1093/cdn/nzaa040_057 ◽

2020 ◽

Vol 4 (Supplement_2) ◽

pp. 57-57

Author(s):

Sabrina Noel ◽

David Cornell ◽

Xiyuan Zhang ◽

Katherine Tucker

Keyword(s):

Muscle Strength ◽

Puerto Rican ◽

Dietary Quality ◽

Dash Diet ◽

Dietary Index ◽

Diabetes Status ◽

Iadl Disability ◽

The Relationship ◽

Prevention Of Disability

Abstract Objectives Emerging evidence suggests that overall dietary quality is important for the prevention of disability, which maybe be due to protective effects on cardiovascular risk factors. Few studies have investigated adherence to a DASH diet and disability and muscle strength prospectively, particularly among Puerto Rican adults. This study examined the relationship between a DASH dietary index and incidence of disability and change in muscle strength over 5 years of follow up. Methods Data are from the Boston Puerto Rican Health Study, a prospective cohort of Puerto Rican adults aged 45 to 75 y (n = 1408). The DASH dietary quality index (DASH) was derived from averaged dietary data assessed by validated food frequency questionnaire at baseline and 2-y follow up. Self-reported disability included activities of daily living (ADL) and instrumental ADL assessed at baseline, 2-y and 5-y follow up. Hand grip measures were obtained using a hand dynamometer at baseline, 2-y and 5-y follow up. Cox Proportional Hazards models were adjusted for sex, age, cardiovascular disease, smoking status, educational attainment, alcohol consumption, physical activity, hypertension, diabetes, cholesterol concentration, C-reactive protein and body mass index. Multivariable linear regression was used to model changes in handgrip. Interactions by sex, age and diabetes status were examined. Results The prevalence of ADL and IADL disability at baseline was 70.8% and 48.6%. Mean change in handgrip from baseline to 5 y was −2.19 kg. Interactions by age, sex and diabetes status were not significant. Participants with higher adherence to the DASH diet had lower incidence of impaired ADL (HR = 0.95, 95% CI: 0.92, 0.99) and IADL disability (HR = 0.96, 95% CI: 0.93, 0.98). The relationship between the DASH dietary index and change in handgrip measures from baseline to 5-y follow up approached significance (β = 0.14 ± 0.08, P = 0.07). Conclusions These findings suggest that higher adherence to a DASH diet may reduce risk of disability and mitigate muscle strength loss among Puerto Rican adults. This may be an important intervention strategy for prevention of disability in this population. Funding Sources National Institutes of Health, National Institute of Arthritis and Musculoskeletal and Skin Diseases.

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