scholarly journals Criterion-Related Validity of a Simple Muscle Strength Test to Assess Whole Body Muscle Strength in Chinese Children Aged 10 to 12 Years

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Liqin Yin ◽  
Changfa Tang ◽  
Xia Tao
Keyword(s):  
Muscle Strength ◽  
Strength Test ◽  
Whole Body ◽  
Back Muscle ◽  
Back Muscle Strength ◽  
Body Muscle ◽  
Hand Grip ◽  
Standing Long Jump ◽  
Long Jump ◽  
Leg Muscle

Objective. To study the criterion-related validity of simple muscle strength test (SMST) indicators and assess whole body muscle strength in Chinese children aged 10 to 12 years old.Methods. Two hundred and forty children were equally divided into four groups in different genders and residences. The SMST indicators (hand-grip, knee bent push-up, back muscle strength, sit-up, leg muscle strength, and standing long jump) were tested. We set up the total level of the whole-body muscle strength (Ftotal) through testing isokinetic muscle strength of the six joints’ flexion and extension movements. Pearson correlation analyses were used to analyze the correlation between the SMST indicators and theFtotal.Results.(1)Leg muscle strength and back muscle strength demonstrated the highest validity scores. Sit-ups, hand grip, and standing long jump demonstrated the lowest validity scores.(2)Leg muscle strength had the highest validity for males, but back muscle strength had the highest validity for females.Conclusions. Back muscle strength and leg muscle strength can give the highest validity of assessing whole body muscle strength, and also has higher validity in both the urban and rural children. For urban children, but not rural, the knee bent push-up also has a high validity indicator.

scholarly journals Muscle Functions and Functional Performance among Older Persons with and without Low Back Pain

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Nor Azizah Ishak ◽  
Zarina Zahari ◽  
Maria Justine
Keyword(s):  
Muscle Strength ◽  
Lower Limb ◽  
Older Persons ◽  
Abdominal Muscle ◽  
Back Muscle ◽  
Limb Function ◽  
Back Muscle Strength ◽  
Hand Grip ◽  
Lower Limb Function ◽  
Muscle Functions

This study aims to compare muscle functions and functional performances between older persons with and without low back pain (LBP) and to determine the association between muscle functions and functional performances. This is a cross-sectional study, involving 95 older persons (age =70.27±7.26years). Anthropometric characteristics, muscle functions, and functional performances were measured. Data were analyzed using ANOVA, Pearson’s correlation, and multiple linear regression. The functional performances showed no significant differences (females LBP versus non-LBP, males LBP versus non-LBP) (p<0.05). For muscle functions, significant differences were found (females LBP versus non-LBP) for abdominal muscle strength (p=0.006) and back muscle strength (p=0.07). In the LBP group, significant correlations were found between back and abdominal muscle strength and hand grip strength (r=0.377andr=0.396, resp.), multifidus control and lower limb function (r=0.363) in females, and back muscle strength and lower limb function (r=0.393) in males (allp<0.05). Regression analysis showed that abdominal and back muscle strengths were significant predictors of hand grip strength (p=0.041andp=0.049, resp.), and multifidus control was a significant predictor of lower limb function in females (p=0.047). This study demonstrates that older women with LBP exhibit poorer muscle functions compared to older women without LBP.

scholarly journals Relative Hand Grip and Back Muscle Strength, but Not Mean Muscle Strength, as Risk Factors for Incident Metabolic Syndrome and Its Metabolic Components: 16 Years of Follow-Up in a Population-Based Cohort Study

2021 ◽  
Vol 11 (11) ◽  
pp. 5198
Author(s):  
Yoo Jeong Jeon ◽  
Seung Ku Lee ◽  
Chol Shin
Keyword(s):  
Metabolic Syndrome ◽  
Muscle Strength ◽  
Population Based ◽  
Back Muscle ◽  
Men And Women ◽  
Back Muscle Strength ◽  
Hand Grip ◽  
Change In The Mean ◽  
Cox Proportional Hazard Regression ◽  
The Relationship

Muscle strength is associated with health outcomes and can be considered an important disease predictor. There are several studies examining the relationship between hand grip strength (HGS) and metabolic syndrome (MetS). However, no results have been reported for long term longitudinal studies. In this study, we investigated the relationship between mean HGS, back muscle strength (BMS), relative HGS and BMS, and MetS. A total of 2538 non-MetS subjects aged 40–69 years (1215 women and 1323 men) in the Korean Genome and Epidemiology Study (KoGES) Ansan cohort were followed for 16 years. The relationships between incident MetS (iMetS) and muscle strength were estimated using Cox proportional hazard regression models after adjusting for the confounding factors. Increases in standard deviation (SD) and the lower quartile groups for relative HGS and BMS were significantly associated with iMetS in men and women. Moreover, increases in SD and high quintile groups (decreased HGS group) for the delta change in the mean and relative HGS were significantly associated with iMetS in men only. In addition, SD increases for the relative HGS and BMS were significantly associated with iMetS components in men and women. The present study suggests that lower relative HGS and BMS are associated with high risk for the future development of MetS.

scholarly journals KONTRIBUSI ANTARA KEKUATAN OTOT TUNGKAI DAN KEKUATAN OTOT PUNGGUNG TERHADAP KEMAMPUAN BANTINGAN PINGGANG OLAHRAGA GULAT ATLET PGSI PROVINSI BENGKULU

2018 ◽  
Vol 14 (2) ◽  
pp. 108-120
Author(s):  
Martiani Martiani
Keyword(s):  
Muscle Strength ◽  
Research Method ◽  
Correlation Method ◽  
Sampling Technique ◽  
Positive Contribution ◽  
Back Muscle ◽  
Back Muscle Strength ◽  
Meaningful Relationship ◽  
Leg Muscle

Penelitian ini dilakukan untuk mengetahui kontribusi kekuatan otot tungkai dan kekuatan otot punggung terhadap kemampuan bantingan pinggang secara ilmiah. Adapun rumusan masalah dalam penelitian ini adalah berapa besar kontribusi kekuatan otot tungkai dan kekuatan otot punggung secara bersama-sama terhadap kemampuan bantingan pinggang dalam olahraga gulat? Penelitian ini dilakukan di sasana gulat PGSI Provinsi Bengkulu. Metode penelitian yang digunakan adalah metode korelasi product moment dan korelasi ganda, sampel penelitian berjumlah 30 atlet gulat PGSI Provinsi Bengkulu yang diambil dengan teknik total sampling. Adapun hasil data Rhitung = 0,91 > Rtabel = 0,361 maka Ho ditolak dan Ha diterima artinya terdapat hubungan yang berarti antara X1 dan X2 secara bersama-sama dengan Y. Kontribusi kekuatan otot lengan dan kekuatan otot punggung terhadap kemampuan bantingan pinggang yaitu K = r2 x 100% = 82,81%. Sehingga dapat disimpulkan bahwa adanya kontribusi positif antara kekuatan otot tungkai dan kekuatan otot punggung terhadap kemampuan bantingan pinggang sebesar 82,81%.AbstractThis study was conducted to determine the contribution of leg muscle strength and back muscle strength to the ability of the waist beating scientifically. The formulation of the problem in this research is how much contribution of leg muscle strength and back muscle strength together to the ability of waist beating in wrestling? This research was conducted in wrestling sasana PGSI of Bengkulu Province. The research method used is correlation method with product moment and double correlation, the samples are research 30 wrestling atlets of PGSI Bengkulu Province taken with total sampling technique. The result of data Rcount = 0.91> Rtable = 0.361 then Ho is rejected and Ha is accepted, it means that there is a meaningful relationship between X1 and X2 together with Y. Contribution of arm muscle strength and back muscle strength to the ability of waist beating that is K = r2 x 100% = 82.81%. So it can be concluded that there is a positive contribution between leg muscle strength and back muscle strength to the ability of waist beating by 82.81%.Keywords: leg muscle strength, back muscle strength, waist beating ability.

scholarly journals Muscle Strength and Flexibility without and with Visual Impairments Judoka’s

2016 ◽  
Vol 9 (5) ◽  
pp. 12 ◽  
Author(s):  
Onder Karakoc
Keyword(s):  
Body Weight ◽  
Muscle Strength ◽  
Vertical Jump ◽  
Visual Impairments ◽  
Leg Strength ◽  
Hand Grip ◽  
Right Hand ◽  
Standing Long Jump ◽  
Long Jump ◽  
Push Up

<p class="apa">The aim of this study was to examine muscle strength and flexibility of Judoka with and without visual impairments. A total of 32 male national judoka volunteered to participate in this study. There were 20 male judoka without visual impairments (mean±SD; age: 19.20±5.76 years, body weight: 66.45±11.09 kg, height: 169.60±7.98 cm, sport age: 6.20±1.15 years). There were 12 male judoka with visual impairments (mean±SD; age: 24.50±4.06 years, body weight: 75.58±22.49 kg, height: 173.50±7.23 cm, sport age: 8.08±1.44years). Judoka were also assessed on several strength measurements including standing long jump, right hand grip, left hand grip, vertical jump, leg strength, sit-up and push up, and flexibility with sit and reach. We found significant differences between with and without visual impairments in leg strength, left and right hand grip and push-up (p&lt;0.05). On the other hand, there was no significant difference between with visual and without impairments in vertical jump, sit-up, flexibility, and standing long jump (p&gt;0.05). In conclusion, it is considered that visual impairment issue does not have negative effects on physical development and muscle power performance levels for ones doing judo sport because elite active athletes’ training levels are close to each other.</p>

scholarly journals Effects of different vibration frequencies on muscle strength, bone turnover and walking endurance in chronic stroke

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhenhui Yang ◽  
Tiev Miller ◽  
Zou Xiang ◽  
Marco Y. C. Pang
Keyword(s):  
Muscle Strength ◽  
Bone Turnover ◽  
Intervention Program ◽  
Type I Collagen ◽  
Chronic Stroke ◽  
Medium Effect ◽  
Whole Body ◽  
Type I ◽  
Leg Muscle ◽  
Walking Endurance

AbstractThis randomized controlled trial aimed to evaluate the effects of different whole body vibration (WBV) frequencies on concentric and eccentric leg muscle strength, bone turnover and walking endurance after stroke. The study involved eighty-four individuals with chronic stroke (mean age = 59.7 years, SD = 6.5) with mild to moderate motor impairment (Fugl-Meyer Assessment lower limb motor score: mean = 24.0, SD = 3.5) randomly assigned to either a 20 Hz or 30 Hz WBV intervention program. Both programs involved 3 training sessions per week for 8 weeks. Isokinetic knee concentric and eccentric extension strength, serum level of cross-linked N-telopeptides of type I collagen (NTx), and walking endurance (6-min walk test; 6MWT) were assessed at baseline and post-intervention. An intention-to-treat analysis revealed a significant time effect for all muscle strength outcomes and NTx, but not for 6MWT. The time-by-group interaction was only significant for the paretic eccentric knee extensor work, with a medium effect size (0.44; 95% CI: 0.01, 0.87). Both WBV protocols were effective in improving leg muscle strength and reducing bone resorption. Comparatively greater improvement in paretic eccentric leg strength was observed for the 30 Hz protocol.

PENGARUH SENAM JANTUNG SEHAT SERI-I TERHADAP DAYA TAHAN JANTUNG-PARU, KEKUATAN OTOT DAN KADAR TNF-? PLASMA PADA LANJUT USIA

2019 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Ajeng Fitria ◽  
Leonardo Lubis ◽  
Ambrosius Purba
Keyword(s):  
Muscle Strength ◽  
Health Workers ◽  
The Elderly ◽  
Moderate Intensity ◽  
P Value ◽  
Back Muscle ◽  
Back Muscle Strength ◽  
Shoulder Muscles ◽  
Before And After ◽  
Post Test

The increasing number of elderly and elderly life expectancy is a challenge for health workers. Decreased cardiac endurance, muscle strength and increased incidence of inflammation will occur in the elderly as we get older. health cardio exercises series-I is an aerobic exercise that has moderate intensity and is carried out for 30 minutes, research is needed to analyze the effect on cardiac endurance, muscle strength and decrease plasma TNF-? levels in the elderly. Research design with experimental method, pre-test and post-test design approach. The study was conducted for 4 weeks on 25 samples which were divided into 3 groups of frequency of health cardio exercises series-I to measure endurance of the heart. A 6-minute road test and muscle strength were used for hand grip strength dynamometer, test back and leg dynamometer. Measurement of plasma TNF-? levels is carried out using the Elisa method. The data was then analyzed using paired t-test to see differences before and after health cardio exercises series-I. The results showed health cardio exercises series-I performed 3x / mg can increase the heart's endurance compared to the frequency of 4x / mg and 5x / mg (-16.11 vs 15.62 vs -47.62 meters). health cardio exercises series-I frequency of 3x / mg and 4x / mg can increase back muscle strength (p-value = 0.019, p <0.05) and the frequency of 5x / mg can increase the strength of attractive shoulder muscles. (p-value = 0.033, p <0.05). Health cardio exercises series-I performed 3x / mg, 4x / mg and 5x / mg did not have a significant effect on plasma TNF-? protein expression in the elderly (0.506 vs 0.856 vs. 0.382, p <0.05). It is suggested that the elderly can do I-1 series heart exercise with a frequency of 3x / mg to increase the heart's lung endurance and back muscle strength, a health cardio exercises series-I 4x / mg series to increase muscle strength of the back back, a series of health cardio exercises series-I frequency of 5x / mg to increase attractive shoulder muscle strength.

scholarly journals Physical Fitness Promotion among Adolescents: Effects of a Jump Rope-Based Physical Activity Afterschool Program

Children ◽  
2020 ◽  
Vol 7 (8) ◽  
pp. 95 ◽  
Author(s):  
Xiaofeng Yang ◽  
Joonyoung Lee ◽  
Xiangli Gu ◽  
Xiaoxia Zhang ◽  
Tao Zhang
Keyword(s):  
Physical Activity ◽  
Physical Fitness ◽  
Muscular Strength ◽  
Afterschool Program ◽  
Left Hand ◽  
Hand Grip ◽  
Standing Long Jump ◽  
Long Jump ◽  
Jump Rope ◽  
Rope Skipping

The major purpose of this study was to examine the effects of a jump rope-based physical activity afterschool program on middle school students’ physical fitness. Sixty students (Mage = 13.37, SD = 0.58; 53.3% female) participated in a 12-week jump rope-based afterschool program (45 min/time, three times/week). Participants were randomly assigned to three groups: (a) freestyle rope skipping (N = 20), traditional jump rope (N = 20), and a control group (N = 20). Physical fitness tests, including muscular strength (standing long jump, right-hand grip, and left-hand grip), flexibility, body composition, and bone mineral density (BMD) were measured in pre- and post-tests. A 2 (time) × 3 (groups) repeated measure multivariate analysis of variance (MANOVA) was performed. The results found significant improvements in muscular strength (standing long jump, right-hand grip, and left-hand grip) in both intervention groups (p < 0.001; ds = 0.2–0.44). Only the freestyle rope skipping group had increased BMD (p < 0.05, d = 0.33). Compared to the traditional jump rope, the freestyle rope skipping group showed significantly higher improvement in flexibility (p < 0.05, d = 0.83). These findings suggest that the jump rope-based afterschool program with freestyle rope skipping would be more effective than traditional jump rope to promote physical fitness performance among adolescents.

scholarly journals Effectiveness of Using Active Games for Strength Development in 10-Year-Old Boys at the Initial Training Stage in Kyokushin Karate

2021 ◽  
Vol 21 (1) ◽  
pp. 84-89
Author(s):  
Svitlana Marchenko ◽  
Bahtiiar Satdyiev
Keyword(s):  
Strength Development ◽  
Left Hand ◽  
Hand Grip ◽  
Standing Long Jump ◽  
Training Stage ◽  
Fitness Indicators ◽  
Long Jump ◽  
The Right ◽  
Grip Test ◽  
The Impact

The objective of the study was to examine the level of strength fitness indicators of 10-year-old boys who do Kyokushin Karate, and experimentally test the effectiveness of the impact of play techniques on the dynamics of strength development. Materials and methods. The study involved 40 10-year-old boys. The children and their parents were informed about all the features of the study and gave their consent to participate in the experiment. To achieve the objective set, the following research methods were used: analysis of scientific and methodological literature, pedagogical testing, and methods of mathematical statistics for processing research results. Results. There were the biggest changes in the results of the tests “Standing long jump” by 15.9% (р < 0.001), “Sit-ups in 30 s” by 16.0% (р < 0.001), “Pull-ups” by 18.3% (р < 0.001), and “Bent arm hang” by 15.6% (р < 0.001). The experimental group boys’ result of the “Standing long jump” changed from low to above average. The lowest increase in results was observed in the “Right hand grip test” by 7.2% (р < 0.001), “Left hand grip test” by 6.9% (р < 0.001), and“Push-ups” by 11.8% (р < 0.001). Conclusions. The initial level of the boys’ strength fitness is sufficient and conforms to age norms. Most of them had an average – 30.36%, an above average – 19.64%, and a high – 23.21% level of strength abilities development. The data obtained give reason to recommend that teachers and coaches use active games aimed at developing strength. As a result of using play load (5 games, 3 repetitions with rest intervals of 40 s), there was a statistically significant increase in strength indicators (р < 0.001).

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