Push-up Exercise Research Articles

The Influence Of Push-Ups On The Accuracy Of Underhand Serves In The Women's Volleyball Team Of Universitas PGRI Adi Buana Surabaya

Abstract This research was motivated by the low proficiency in underhand serves among the women's volleyball team of Universitas PGRI Adi Buana Surabaya. The aim of this study was to determine the effect of push-ups on the accuracy of underhand serves in this team. The research employed a quantitative experimental design using a one-group pretest-posttest approach. The subjects consisted of 10 female students from the university's volleyball team. Data collection methods included pretests, the intervention (push-up training), and posttests. Data analysis involved tests for normality, homogeneity, and hypothesis testing. Based on the posttest results, the implementation of push-up exercises successfully increased arm muscle strength among the volleyball team members, thereby improving their underhand serving accuracy. The hypothesis testing results showed that Sig. (2-tailed), 0.000 < α, 0.05, indicating rejection of Ho and acceptance of Ha. Therefore, the statistical hypothesis conclusion is that push-ups have an influence on the accuracy of underhand serves in the women's volleyball team of Universitas PGRI Adi Buana Surabaya. Keywords: Push Up, Underhand Serve, Arm Muscle

Application of push-ups and pull-ups to develop strength endurance of arm muscles in archery athletes

Background and purpose The lack of a training model in archery causes tremors which will have an impact on a lack of accuracy in archery, this study aims to provide a special training model for archery athletes. Materials and methods With a 2 x 2 factorial design and the population used was archery athletes with a population of 38 taken by purposive sampling with the criteria of being elite archery athletes, aged 16-18 years, then ranked 27% in the upper group and 27% in the lower group. Obtained a research sample of 20 athletes then, from each of these data were divided into two groups by way of ordinal pairing. After carrying out the pretest, the athletes carried out variations of push-up and pull-up exercises which were carried out for 18 meetings, and test instruments for endurance and arm muscle strength tests holding bow digits. Results (1) There is a significant difference in the effect of push-up and pull-up training methods on the arm muscle strength of archery athletes, with an F value of 7,738 and a significance value of p 0.027 <0.05. (2) There is a significant difference in the effect of athletes who have high and low muscle endurance on the arm muscle strength of archery athletes, as evidenced by the F value of 51.203 and a significance value of p 0.000 <0.05. (3) There is a significant interaction between push-up and pull-up training methods and muscle endurance (high and low) on the arm muscle strength of archery athletes, with an F value of 51.203 and a significance value of p 0.000 <0.05. Conclusions There is a significant interaction, namely push-up exercises are suitable for those who have high arm muscle endurance, while pull-up exercises are more suitable for athletes who have low arm muscle endurance.

Comparative analysis of elevated and floor push-up exercises for activation of the pectoralis major muscle

This study aimed to measure muscle activation by comparing electromyography (EMG) of two types of pushups i.e., ground-based and elevated. 20 male active sportspersons (age 20.12±3.57years, weight 65.38±9.32kg, height 175.5±10.5cm) were recruited in the study. The upper body muscle pectoralis major (PM) was chosen as target muscle for the study. Root mean square (RMS) of EMG activities were analysed for the PM muscle to determine maximum muscle involvement. In the elevated pushups, the samples performed the pushups on an elevated pushup bar of 18-centimeter height, in which they gripped the bar as per their shoulder width. Also, their feet were ground-based on a similar height platform. The paired t-test was used as the statistical tool to compare the EMG activation of PM between both variations of pushups. Further, mean and standard deviation values were considered for descriptive statistics. The level of significance was set at 0.05. The result of the study showed that there was no statistically significant difference in EMG activities of PM muscle between the two pushup variations with a t-value of -0.89. However, the descriptive statistics showed that the mean value of elevated pushups (RMS, 350.63) was higher than the grounded pushups (RMS, 311.44). These findings suggest elevated pushups may induce greater PM muscle activation, potentially due to increased instability due to the influence of elveated exercise variations on muscle engagement. Key words: pushups, muscle activation, electromyography, pectoralis major, exercise variations, root mean square

Immediate Effects of Pencil Push-Up Exercise on Visual Accommodation Skills in Amateur Badminton Players: A Randomized Controlled Trial

Background Visual skills are crucial for peak athletic performance, with Visual Accommodation (VA) playing a vital role. However, the immediate effects of interventions on VA in sports remain unclear. Objective To investigate the acute effects of a 10-minute Pencil Push-Up (PPU) exercise on VA skills in amateur badminton players. Methods A two-arm, parallel, randomized controlled trial was conducted with twenty-eight amateur badminton players. Participants were matched by age, duration, and frequency of badminton practice, as well as visual health, and randomly assigned to either a Trained Group (TG) or an untrained group (NT). The TG performed a 10-minute PPU exercise, while the NT rested with closed eyes for the same duration. VA parameters, including Amplitude of Accommodation (AA), Accommodative Facility (AF), and Near Point of Convergence (NPC), were assessed before and after the intervention. Results Significant improvements in AA and AF were observed in the TG from pre- to post-intervention (AA: p < .0001, Cohen's d = 1.68; AF: p < .0001, Cohen's d = 3.10). However, no significant changes were observed in NPC (p= .45, Cohen's d =0.60). Furthermore, the TG exhibited greater improvements in AA and AF compared to the NT at post-intervention (AA: 95%CI= [-2.812 to -0.2314], p = .02; AF: 95%CI= [-8.363 to -3.680], p < .0001). No changes were observed in the NT group. Conclusion A single session of pencil push-up exercise acutely enhanced visual accommodation skills, specifically amplitude of accommodation and accommodative facility, in amateur badminton players. This suggests that visual accommodation training methods like pencil push-ups could improve visual performance in sports. Clinical Trials Registry TCTR20240531002 (https://www.thaiclinicaltrials.org/show/TCTR20240531002).

Comparative Effectiveness of different therapies for Convergence Insufficiency

Purpose: This study aimed to determine the effectiveness of different treatment options such as brock string, dot card, jump convergence and pencil push-up exercises for convergence insufficiency (CI). Methodology: After ethical approval, this quasi experimental study was conducted at District Head Quarter (DHQ) Bhakkar, Thel University Bhakkar, schools and collages of Bhakkar and district Layyah by selecting 140 patients presenting with symptomatic convergence insufficiency through non-probability convenient sampling. After informed consent, Positive Fusional Vergence (PFV), CI Symptom Survey (CISS) and near point of convergence (NPC) were measured. Then randomly divide into four groups of 35 patients by non-probability purposive sampling. Each group received one of the chosen therapy for 3 consecutive months. All patients were examined and self-structure proforma was filled as baseline data on each follow-up of therapy. Data was analyzed by IBM SPSS version 23. Results: After completion of three month of treatment, near point of convergence improved from mean 13.343 ±.219 to 8.757±.194; CI 95%: p<0.001 respectively in brock string, mean 13.486 ±.197 to 7.729 ±.169; CI 95%: p<0.001 in dot card exercise, in jump convergence mean 13.614 ±.214 to 9.057, ±.170; CI 95%: p<0.001 improvement of NPC occur and in pencil push-up 13.243 ±.208 to 8.329 ±.143; CI 95%: p<0.001. Conclusion: The dot card is most effective treatment to perform at home for CI, effective for achieving clinically significant improvements in signs and symptoms associated with CI in young adults.

Dynamic stretching versus plyometric push up training on upper body performance in cricketers

Background: The cricketers may enhance their upper-body performance through dynamic stretching and plyometric push-up training. For tasks specific to cricket, plyometric push-up training promotes explosive strength and power, while dynamic stretching enhances flexibility, muscle activation, and coordination. Objective: To compare the effects of dynamic stretching and plyometric push-ups on upper body performance tests in cricketers. Methodology: A randomized control trial was conducted in which initially n=22 cricketers were enrolled. Out of them, two participants dropped out of the study after two weeks due to which a total number of n=20 participants participated in the six-week study. Participants were divided into two groups, one group performed upper body dynamic stretching exercises along with their usual warm-up routine and the other group did plyometric push-ups along with some variation of exercises. They performed the exercises for three days a week on alternate days. Upper body fitness tests were performed, i.e. one arm tests, Upper quadrant Y- y-balance test, and Medicine ball throw tests every week to gather data regarding participants' upper body fitness. Results: there was no significant difference (p≥0.05) between the groups from the baseline to the 6th week in all variables except in upper quadrant Y balance tests left hand showed significant improvement (p=0.01) at the end of the 6th week. While in the one-arm hop test was not comparable at baseline due to a significant difference, so compared the mean of mean difference, which was also not statistically significant (4.18±0.79 vs 4.03±0.67, p=0.65). Conclusion: The study concludes that both dynamic stretching and plyometric push-up exercises showed equal effects upper body performance among cricketers. Keywords: dynamic stretching; plyometric push-up; upper body performance. ClinicalTrials.gov Identifier: NCT05516706

Electromyographic activity of periscapular muscles in symptomatic people: Does scapular dyskinesis have an impact on it?

BACKGROUND: Scapular dyskinesis (SD) is a modification of the positioning and movement of the scapula and is associated with shoulder pain. Exercises to strengthen the shoulder and scapular muscles have been proposed as a therapeutic strategy to reduce pain and improve function. OBJECTIVE: We aimed to investigate the electromyographic activity of the periscapular and trunk muscles in individuals with shoulder pain and SD in different multi-joint exercises. METHODS: Thirty-two subjects with subacromial pain, of both sexes, with the presence or absence of SD, participated in this study. Volunteers performed five repetitions in five exercises (Closed Row; Pronated Row; Push-up; Scapular Push-up; T-push-up). The activity of the upper trapezius, middle trapezius, lower trapezius, serratus anterior, external oblique, and rectus abdominis muscles was recorded using electromyography. RESULTS: Our results showed a decrease in the electromyographic activity of the serratus anterior and external oblique during the T-push-up exercise in individuals with shoulder pain and SD. No differences were observed between groups for the trapezius and the rectus abdominis. CONCLUSIONS: Rehabilitation programs may initially prioritize rowing and push-up exercises to strengthen periscapular muscles. More complex exercises with greater mechanical demand on the kinetic chain, such as the T-push-up, may have to be implemented in later phases.

Electromyography of shoulder muscles in individuals without scapular dyskinesis during closed kinetic chain exercises on stable and unstable surfaces: a systematic review and meta-analysis.

Unstable surfaces are commonly utilized to enhance the flexibility of the musculoskeletal system for achieving training or rehabilitation goals. However, their effects on shoulder muscle activation during various push-up (PU) exercises have not been thoroughly investigated. Therefore, the purpose of this study was to synthesize electromyography (EMG) data of shoulder muscles in individuals without scapular dyskinesis performing different PU exercises on both stable and unstable surfaces. A systematic online search was conducted in electronic databases, including Web of Science, PubMed, Scopus, and Google Scholar, up to January 16, 2024, using predefined sets of keywords. Out of the 1,971 titles and abstracts screened, 80 articles were reviewed in detail by two independent researchers to check the eligibility, of which 28 eligible studies were ultimately included. Following assessment of the quality and risk of bias, the studies were categorized based on exercises and muscle groups, and a meta-analysis using a random-effects model was performed to estimate the overall effect size. The use of unstable surfaces led to a decrease in anterior deltoid activity during PU [P = 0.032; I2 = 91.34%; SMD = -0.630 (95% CI -1.205, -0.055)], an increase in pectoralis major activity during PU [P = 0.006; I2 = 63.72%; SMD = 0.282 (95% CI 0.079, 0.484)], as well as during knee PU [P = 0.018; I2 = 32.29%; SMD = 0.309 (95% CI 0.052, 0.565)], and an increase in triceps brachii activity during PU [P = 0.000; I2 = 85.05%; SMD = 0.813 (95% CI 0.457, 1.168)], knee PU [P = 0.000; I2 = 0.00%; SMD = 0.589 (95% CI 0.288, 0.891)], as well as during push-up plus [P = 0.006; I2 = 13.16%; SMD = 0.563 (95% CI 0.161, 0.965)]. However, the use of unstable surfaces did not show a significant effect on the EMG activity of the pectoralis major during push-up plus [P = 0.312; I2 = 22.82%; SMD = 0.207 (95% CI -0.194, 0.609)]. Unstable surfaces can modulate muscle activity in different PU exercises, while the effects on the targeted muscles depend on the type of exercise. The findings of this review provide a framework based on the level of activity of each shoulder muscle during different PU exercises, which can help coaches, trainers, and sports therapists select the most suitable type of PU for designing training or rehabilitation programs. Particularly, the most suitable exercise for increasing anterior deltoid activity is PU on a stable surface. To concurrently increase activity of the pectoralis major and triceps brachii, adding unstable surfaces under hands during knee PU and standard PU is recommended. PROSPERO, identifier CRD42021268465.

Regional Differences in Skeletal Muscle O2 Dynamics During Body-Weight Resistance Exercise with Slow Movement and Tonic Force Generation.

The aim of this study was to investigate the skeletal muscle O2 dynamics during body-weight resistance exercise with slow movement and tonic force generation. Thirteen untrained, healthy, young males performed Bulgarian split squats and push-ups until volitional failure. Relative changes from rest in oxygenated haemoglobin (oxy-Hb) and deoxygenated haemoglobin (deoxy-Hb) concentrations were continuously monitored at the vastus lateralis (VL) and rectus femoris (RF) muscles during squats, and pectoralis major (PM) and triceps brachii (TB) muscles during push-ups using spatial resolved near-infrared spectroscopy oximetry. During the squat exercise, deoxy-Hb continuously increased at RF until failure (10.8±7.0μmol/L), while at VL, deoxy-Hb was relatively maintained during 25-100% of the number of maximum repetitions (18.0±7.4μmol/L at volitional failure). During the push-up exercise, a significant increase in deoxy-Hb was observed during exercise from rest at PM and TB. We found a significant increase in oxy-Hb during exercise at PM (28.1±15.8μmol/L at volitional failure), while at TB, no significant difference was observed from rest (-2.7±13.7μmol/L at volitional failure). Our findings suggest that the deoxygenation patterns during body-weight squat exercise were heterogeneous within the quadriceps muscles. Moreover, differences in O2 dynamics between the trunk and extremity muscles may be partly explained by convective O2 supply during resistance exercise. However, future studies are needed due to inter-individual differences in skills for body-weight resistance exercise.

Designing and Prototyping of AI-based Real-time Mobile Detectors for Calisthenic Push-up Exercise

Fitness exercises, including push-ups, are very beneficial to personal health. Many Artificial Intelligence (AI)-based fitness trainers are developed based on human pose estimation models or assisted by Internet of Things (IoT) devices. However, many of them require access to a graphing processing unit (GPU) for model training or IoT sensors to deploy, less accessible for individuals. In our work, we designed and prototyped real-time mobile push-up detectors using three distinctive approaches: (1) Push-up pose classification, (2) Angle-heuristic estimation and (3) Optical flow detection. We trained our deep-learning model with over 2000 images to achieve a high accuracy for real time deployment. Models are tested on our video dataset applied data augmentation techniques to simulate real-world environmental conditions to evaluate model performance based on accuracy metrics (precision, recall, F1 score) and processing frame rate (FPS). From the results, we concluded that the angle-heuristic estimation method has the best overall performance and we analysed the reasons for the relatively poorer performance of the push-up pose classification and optical flow detection methods. All methods developed are capable of working on mobile devices without the need of GPU or IoT sensors.

Investigation of the Effect of Push-Up Exercises with and without Suspension on Some Motor Skills Applied to Young Volleyball Athletes

ABSTRACTThe aim of this study was to compare the relationships between some motor skills in the upper extremity region of 20 male volleyball players aged 15-18 years, competing in the 8th Group of the 2nd League of the Turkish Volleyball Federation, with and without suspended and unsuspended Push-Up (PU) bosu ball exercises applied for 3 sessions every week for 8 weeks. In addition to the normal training program, the first group was trained with unsuspended (PU) and the second group was trained with suspended (PU) for 8 weeks. Both groups performed Medicine Ball Throw to evaluate upper extremity strength, Closed Kinetic Chain Upper Extremity Stability Test to evaluate endurance and Upper Extremity Y-Balance Test to evaluate balance before and after the training program. As a result of this study, the difference values of the test results before and after the training were compared. A significant difference was found between the groups in the upper extremity right and left arm 0,000, Y Balance Test Medial dominant 0,000, and non-dominant 0,004, Superolateral dominant and non-dominant 0,000, Inferiorlateral dominant 0,024 and non-dominant 0,000, chest and overhead 0,000 Health Ball Throw test difference changes (p0,05). Performing the applications used in classical training methods on unstable grounds can increase the motivation of volleyball athletes and contribute to their performance. As a result, it seems that unsuspended and suspended (PU) exercises can increase the levels of medicine ball throwing, closed kinetic chain upper extremity stability test and upper extremity Y-balance test with the exercises applied, although the levels are different. Further studies on the subject by increasing the number of participants in different groups and using electronic devices will be useful.Keywords: Bosu Ball, Motor Skills, Push-Up, Upper extremity, Volleyball

The Impact of Leg Width on Muscle Activation and Performance during Push-Up Exercise

The Impact of Leg Width on Muscle Activation and Performance during Push-Up Exercise

The Effect of Push-Up Exercise and Dumbbell Exercise Overhead The Passing Ability of Volleyball Games of SMPN 20 Makassar Extracurricular Participants

This researcher aims to determine the effect of push-up exercises and dumbbell exercises on the overhead passing ability of volleyball extracurricular participants at SMPN 20 Makassar. The population in this study were students of SMP Negeri 20 Makassar. A sample of 40 people was taken based on random sampling. The dependent variable of the research is the ability to pass under volleyball. The independent variables are push-ups and dumbbell exercises. The research method is an experimental method with a one-group pretest-posttest research design. The research data were analyzed using paired and unpaired t-test techniques at a significance level of 95%. The results of the study showed that: (1) There was a significant effect of push-up training on the passing ability of volleyball extracurricular participants at SMPN 20 Makassar. The results of testing the data obtained a t-count value of 15.891 and t-table obtained 1.729 and a significance value of 0.000 <α0.05, so these results indicate that there is a significant difference. Because the t-count is greater than the t-table, so Ho is rejected. (2) There is a significant effect of dumbbell training overhead passing ability in volleyball extracurricular participants at SMPN 20 Makassar. The results of data testing obtained a t-count value of 14.311 and t-table obtained 1.729, and a significance value of 0.000 <α0.05, so these results indicate that there is a significant difference. Because the t-count is greater than the t-table, so Ho is rejected. And (3) there is a significant difference in the effect of push-ups and dumbbell exercises on overhead passing abilities in volleyball extracurricular participants at SMPN 20 Makassar. The results of data testing obtained a t-count value of 3.440 and a t-table obtained 2.021, and a significance value of 0.001 <0.05, so these results indicate that there is a significant difference. Because the t-count is greater than the t-table, so Ho is rejected. The magnitude of the increase in the push-up group (average value 16.4500) with dumbbell exercises (average value 13.9000) can be seen from the data with an average difference of 2.5500 points. This shows that push-up exercises can improve passing skills in volleyball games for extracurricular participants at SMPN 20 Makassar compared to dumbbell exercises.

Perbandingan Pengaruh Latihan Diamond Push-up dengan Latihan Chair Push-up Terhadap Peningkatan Kekuatan Otot Lengan

The arm muscle strength that is focused on for expanded changes comes from the impact of precious stone push-ups and seat push-ups. The location of the research is Cilacap Regency's Komputama Majenang Vocational School. Understudies who were utilized as exploration objects were 20 individuals. Free experimental design was used as the research method. The estimation instrument utilized is push-ups. The obtained outcomes: 1. The precious stone push-up practice fundamentally affects positive changes in the arm muscle strength of understudies at SMK Komputama Majenang, Cilacap Rule. 2. Students at SMK Komputama Majenang, Cilacap Regency, experience significant improvements in arm muscle strength as a result of performing the chair push-up exercise. 3. At SMK Komputama Majenang, Cilacap Regency, students' increases in chair push-ups and diamond push-ups are significantly different. Conclusion: There is a positive change in the impact of precious stone push-ups and seat push-ups on arm muscle strength.

Push Up Exercise Against 50 Meter Swimming Speed Breaststroke

The aim of this study was to evaluate the influence of push-up training on improving the speed of breaststroke swimming in athletes who are members of the Palembang Tirta Sriwijaya Aquatic Club (TSAC). This study was conducted as an experiment using a one-group pretest and posttest research design. The research subjects included athletes who are part of the Palembang Tirta Sriwijaya Aquatic Club (TSAC). The research sample involved all members of age group III with an age range of 12-13 years consisting of 30 individual athletes. The tool used to measure variables is the breaststroke swimming test using a distance of 50 meters. The data analysis was conducted utilizing the T-test. Based on the analysis results, the t-value exceeded 4.762, while the t-table value was 2.045. These results indicate a significant difference between the pretest push-up and posttest push-up groups in relation to the improvement in 50-meter breaststroke swimming speed. The conclusion of this study revealed that push-up exercises had a positive impact on increasing breaststroke swimming speed as far as 50 meters.

Differences in the absolute muscle strength and power of children and adolescents with overweight or obesity: a systematic review

This study aimed to describe absolute muscle strength and power in children and adolescents with obesity, overweight and normal weight, and the assessment tests and tools used. We retrieved observational studies from MEDLINE (PubMed), TripDataBase, Epistemonikos, EBSCO essentials, NICE, SCOPUS, and LILACs up to February 2023. In addition, we recovered data from studies with at least three comparison groups (obesity, overweight, normal weight) and with a description of the absolute muscle strength and power and the assessment tests and instruments used. The methodologic quality of the studies was assessed with the Joanna Briggs checklist, and the review was carried out using the PRISMA 2020 methodology. Eleven studies with 13,451 participants from 6 to 18 years of age were once included, finding that the absolute muscle strength of their upper extremities was greater when they were overweight or obese; however, in the same groups, absolute muscle strength was lower when they carried their body weight. In addition, lower limb absolute muscle strength was significantly lower in obese participants than in normal weight, regardless of age and gender. The most used tools to measure the absolute muscle strength of the upper limbs were the grip dynamometers and push-up exercises. In contrast, different jump tests were used to measure the power of the lower limbs. There are great differences in muscle strength and power between overweight or obese children and adolescents and those with normal weight. Therefore, it is recommended to use validated tests, preferably that assess strength through the load of the patient’s body weight, either of the upper or lower limbs, for greater evaluation objectivity that facilitates the management of these children and adolescents.

Examination of the Effect of Somatotype Profiles on Athletic Performance Indicators in Children Aged 48-72 Months.

Physical fitness and anthropometric variables are crucial in achieving success in the field of sports. These variables serve as the foundation and platform for children to showcase their athletic abilities. The aim of this study is to examine the impact of somatotype profiles of children aged 48-72 months on athletic performance in order to contribute to talent selection. A total of 124 students (62 females, 62 males), aged between 48 and 72 months (mean age of females: 5.75±1.00, mean age of males: 5.68±1.15), participated in the study. Somatotype analysis was performed using the Heath-Carter method. Performance measurements of students included a 20-meter sprint test, flexibility, leg strength, push-up tests, crunches, vertical jump, standing long jump, hand strength, back strength, and hamstring length determination tests. In this study, there was a significant difference in favor of mesomorphic endomorph in crunches (F=3.914, p=0.013) and push-up (F=4.864, p=0.004) exercises for female children compared to all somatotypes. In male children, although the central group was dominant in athletic performance measurements, there was no statistically significant difference (p>0.05). Somatotype is a suitable method for enhancing athletic performance and directing individuals to the appropriate sports discipline. Somatotype profiles are not fully developed in children aged 48-72 months. In the later years, children with suitable somatotypes are expected to demonstrate improved athletic performance.

Electromyographic Activities of Pectoralis Major and Triceps Brachii Muscles During Push-Up Exercises On Different Surfaces

The push-up is a basic exercise commonly used in strength training. This exercise can be performed on different surfaces. The purpose of this study is to compare the muscle activation of the pectoralis major and triceps brachii muscles during push-up exercises performed on stable and unstable surfaces. Nineteen males participated in this study. Bosu ball and ring apparatus were used as unstable surfaces and the floor was used as a stable surface. Subjects performed 5 repetitions of PU on the different surfaces. A one-way repeated-measures analysis of variance was used to compare the muscle activities between the surfaces. Muscle activation of PM was significantly greater in the ring than on the floor and the Bosu ball (p0.05). In conclusion, using the ring apparatus as an unstable surface increase the PM muscle activation in PU exercise. Muscle activation of TB was not influenced by surface stability in PU.

Network of muscle fibers activation facilitates inter-muscular coordination, adapts to fatigue and reflects muscle function

Fundamental movement patterns require continuous skeletal muscle coordination, where muscle fibers with different timing of activation synchronize their dynamics across muscles with distinct functions. It is unknown how muscle fibers integrate as a network to generate and fine tune movements. We investigate how distinct muscle fiber types synchronize across arm and chest muscles, and respond to fatigue during maximal push-up exercise. We uncover that a complex inter-muscular network of muscle fiber cross-frequency interactions underlies push-up movements. The network exhibits hierarchical organization (sub-networks/modules) with specific links strength stratification profile, reflecting distinct functions of muscles involved in push-up movements. We find network reorganization with fatigue where network modules follow distinct phase-space trajectories reflecting their functional role and adaptation to fatigue. Consistent with earlier observations for squat movements under same protocol, our findings point to general principles of inter-muscular coordination for fundamental movements, and open a new area of research, Network Physiology of Exercise.

PENGARUH LATIHAN PUSH-UP DAN LATIHAN WHOLE PART WHOLE TERHADAP KETEPATAN PUKULAN OI ZUKI CHUDAN PADA SISWA EKSTRAKURIKULER KARATE SMPN 1 RANTAU PANJANG


 Test and post-test experiments with 16 meetings. The research instrument was in the form of the oi zuki chudan punch test for 2 trials and the highest results would be used as pre-test and post-test scores. The object in this study was taken by total sampling, namely karate extracurricular students at SMPN 1 Rantau Panjang. The research location was determined based on sample data collection, namely at SMPN 1 Rantau Panjang with a total of 20 students. The data analysis technique used is hypothesis testing with t-test analysis. The results of the study obtained a tcount of 15.47 > ttable of 5.131 indicating that "there is an effect of push-up exercises and whole-part exercises on the accuracy of the oi zuki chudan stroke in karate extracurricular students at SMPN 1Rantau Panjang" the mean of the pre-test is 13.3 and the post-test is 24. .5 then a difference of 11.2 is obtained.