scholarly journals Contribution of Leg Muscle Strength and Speed of Students Long Jump Ability

2020 ◽  
Author(s):  
Ibnu Andli Marta
Keyword(s):  
Muscle Strength ◽  
Long Jump ◽  
Leg Muscle ◽  
Jump Ability

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.

Kontribusi Explosive Power Otot Tungkai Terhadap Hasil Lompat Jauh Gaya Jongkok Pada Mahasiswa Putra Prodi Pendidikan Kepelatihan Olahraga Semester II Universitas Riau

2015 ◽  
Vol 2 (2) ◽  
pp. 72
Author(s):  
Slamet ' ◽  
Ali Mandan ◽  
Ardiah Juita ◽  
Ridwan Sinurat
Keyword(s):  
Significant Relationship ◽  
Muscle Power ◽  
Test Results ◽  
Student Sample ◽  
Correlational Research ◽  
Explosive Power ◽  
Normality Test ◽  
Long Jump ◽  
Independent Variable ◽  
Leg Muscle

This study is correlational research that aims to find the contribution of leg muscleexplosive power to yield long jump squat style. The student sample was the son of varsity sportscoaching education Riau semester totaling 42 people. As the independent variable is theexplosive power leg muscle while dependent variable is the result of the long jump jongok style.Data (x) obtained from the test results without the leading long jump (standing board jump) toassess leg muscle explosive power while data (y) obtained from testing the long jump squat styleusing the prefix. Data were analyzed with statistical normality test is a test last lilifors alsoanalyzed the data to look for the correlation coefficient, and then proceed to test "t" after itsought the contribution. From the results of data processing for the normal distribution of dataobtained for the provision of data (x) and abnormally distributed in terms of data (y). r = 0.32,then through the test "t", t_ (count>) ttabel then there is a significant relationship between theexplosive muscle power with the outcome long jump squat style, via analysis of leg muscleexplosive power of determination have contributed 10.24% and 89 , 76% was contributed byother factors.

CHARACTERISTICS OF POST-FLIGHT MUSCLE STRENGTH AND VELOCITY DYNAMICS IN COSMONAUTS AS A FUNCTION OF WEIGHT LOADING DURING LONG-TERM SPACE MISSIONS

2020 ◽  
Vol 54 (5) ◽  
pp. 23-28
Author(s):  
E.V. Fomina ◽  
◽  
T.B. Kukoba ◽  
Keyword(s):  
Muscle Strength ◽  
Body Mass ◽  
Flight Muscle ◽  
Space Mission ◽  
The Body ◽  
Maximum Strength ◽  
Training Device ◽  
Leg Muscle ◽  
Weight Loading

Testing of 25 cosmonauts showed that the amount of resistance training weight loading in long-term space mission influences dynamics of the leg-muscle strength and velocity recovery. On Earth, the loads equal from 70 to 130 % of the body mass is sufficient for keeping up endurance and maximum strength moments of shin and thigh muscles. In the group of cosmonauts who had not used the strength training device or chosen loads less than 30 % of the body mass the leg-muscle maximum strength and thigh endurance were decreased substantially on day 4 of return and all the more by day 15 back on Earth.

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.

scholarly journals Promoting Stair Climbing as an Exercise Routine among Healthy Older Adults Attending a Community-Based Physical Activity Program

Sports ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 23 ◽  
Author(s):  
Nobuko Hongu ◽  
Mieko Shimada ◽  
Rieko Miyake ◽  
Yusuke Nakajima ◽  
Ichirou Nakajima ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Muscle Strength ◽  
Daily Living ◽  
Stair Climbing ◽  
Community Based ◽  
Healthy Older Adults ◽  
Exercise Routine ◽  
Before And After ◽  
Leg Muscle

Stair climbing provides a feasible opportunity for increasing physical activity (PA) in daily living. The purpose of this study was to examine the daily walking and stair-climbing steps among healthy older adults (age: 74.0 ± 4.9 years; Body Mass Index (BMI): 22.3 ± 2.5 kg/m2). Participants (34 females and 15 males) attended a weekly 6-month community-based PA program. During the entire program period, daily walking and stair-climbing steps were recorded using a pedometer (Omron, HJA-403C, Kyoto, Japan). Before and after the 6-month program, height, body weight and leg muscle strength were assessed. After the 6-month program, the mean walking and stair-climbing steps in both women and men increased significantly (p ≤ 0.01). Daily stair-climbing steps increased about 36 steps in women and 47 steps in men. At the end of 6 months, only male participants had significant correlation between the number of stair steps and leg muscle strength (r = 0.428, p = 0.037). This study reported that healthy older adults attending the community-based PA program had regular stair-climbing steps during daily living. Promoting stair climbing as an exercise routine was feasible to increase their walking and stair-climbing steps.

scholarly journals PENGARUH LATIHAN LARI KIJANG DAN LARI GAWANG TERHADAP KEMAMPUAN LOMPAT JAUH DITINJAU DARI DAYA LEDAK OTOT TUNGKAI PADA SISWA KELAS VIII SMP NEGERI 4 GOLEWA

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Josep Marsianus Rewo
Keyword(s):  
Student Performance ◽  
Random Sampling ◽  
Performance Test ◽  
Control Group ◽  
Limb Muscle ◽  
Design Data ◽  
Control Group Design ◽  
Equivalent Control ◽  
Long Jump ◽  
Jump Ability

Penelitian ini merupakan kuasi eksperimen yang menggunakan non-equivalent control group design. Data yang dikumpulkan dalam penelitian ini adalah tes unjuk kerja lompat jauh siswa. Penelitian ini bertujuan untuk mengetahui dan menganalisis pengaruh latihan lari kijang dan lari gawang untuk meningkatkan kemampuan lompat jauh siswa  di tinjau dari daya ledak otot tungkai. Sampel penelitian berjumlah 84 orang siswa kelas VIII yang dipilih dengan teknik random sampling. Data dikumpulkan dengan tes, kemudian dianalisis dengan analisis varian (Anava dua jalur). Hasil penelitian menemukan sebagai berikut. (1) terdapat perbedaan kemampuan lompat jauh antara siswa yang mengikuti model latihan lari kijang dengan siswa yang mengikuti model latihan lari gawang (Fhitung= 4,06>Ftabel(a=5%)) = 4,00, signifikan). (2) Terdapat pengaruh interaksi antara model latihan dengan daya ledak otot tungkai terhadap lompat jauh (Fhitung= 23,39>Ftabel(a=5%) = 4,00, signifikan). (3) Tidak terdapat perbedaan lompat jauh antara siswa yang mengikuti latihan lari kijang dan lari gawang untuk siswa yang memiliki daya ledak otot tungkai tinggi (Qhitung= 16,43>Qtabel = 4,00 signifikan). (4) Terdapat perbedaan lompat jauh antara siswa yang mengikuti model latihan lari kijang dan lari gawang untuk siswa yang memiliki daya ledak otot tungkai rendah (Qhitung = 5,919 >Qtabel= 4,00 signifikan).This study was quasi experiment used non-equivalent control design. The data collected in this study was the student performance test of long jump. This study aims to determine and analyze the influence of the practice of lari kijang and lari gawang to improve students' long jump ability in review of the explosive muscle limb power. The sample of the study was 84 students of grade VIII chosen by random sampling technique. The data was collected by test then analyzed with variant analysis (ANAVA) two ways) and t-test. The result of the study showed that: (1) There is a difference in long jump ability between students who follow the model of lari kijang training with students who follow the model of lari gawang (Fhitung= 4,06 >Ftabel(a=5%)) = 4,00, significant) (2) There is an interaction effect between the exercise model and the explosive muscle limb power against the long jump (Fhitung= 23,39 >Ftabel(a=5%) = 4,00, significant). (3) There is no difference in long jump between students who follow lari kijang and lari gawang for students who have high limb muscle explosive power (Qhitung= 16,43>Qtabel = 4,00 significant) (4) There is a long jump difference between students who follow the model of lari kijang and lari gawang for students who have low limb muscle explosiveness (Qhitung = 5,919 >>Qtabel = 4,00 significant).

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

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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