Hand Muscle Strength Research Articles

Contribution of Hand Muscle Strength and Waist Muscle Strength to Hand Slams of Greco Roman Style Wrestling Athletes in Bengkulu Province in 2024

This study aims to determine the contribution of hand muscle strength and waist muscle strength to the ability of scientific hand slams. The formulation of the problem in this study is how much is the contribution of hand muscle strength and waist muscle strength together to the ability of hand slams in wrestling? This research was conducted at the Bengkulu Province PPLP wrestling gym. The research method used is quantitative research, the research sample amounted to 12 Bengkulu Province wrestling athletes who were taken with total sampling technique. The contribution of hand muscle strength to the ability of hand slams is 77.44% and the contribution of waist muscle strength to the ability of hand slams is 81%. The data results of rcount = 0.88 > rtable = 0.576 then Ho is rejected and Ha is accepted, meaning that there is a relationship between the contribution of hand muscle strength and waist muscle strength together to the ability of hand slams in wrestling. The contribution of hand muscle strength and waist muscle strength to the ability of hand slams is K = r² x 100% = (0.88)² x 100% = 77.44%. So it can be concluded that the positive contribution between hand muscle strength and waist muscle strength to the ability of hand slams is 77.44%.

Effects of Different Test Positions on Quantitative Muscle Strength of Wrist and Finger Flexor Muscle Groups and Its Standardization.

To explore the effects of different test positions on quantitative muscle strength of wrist and finger flexor muscle groups and to establish a standardized muscle strength test protocol for each muscle group. Forty healthy subjects (12 males and 28 females) were recruited. A portable digital quantitative muscle strength tester, Micro FET2TM, was used to measure the flexor muscle strength of each finger and the wrist joint at the 30° extension, 0° neutral, and 30° flexion, respectively. Palmar abduction strength of the thumb was measured at 30° and 60°, respectively. Ten subjects were randomly selected from the 40 subjects, and the quantitative muscle strength of each muscle group was tested again by the same operator after an interval of 10 to 15 days. Except for the fact that in males, there was no significant difference in flexor muscle strength of thumb and wrist joint between 30° of wrist extension and neutral 0° position, the muscle strength of the other fingers flexion and wrist palmar flexor showed the following characteristics：30° of wrist extension > neutral 0° position > 30° of flexion, and the PAST was 30°>60°; The flexor muscle strength of all the subjects was thumb > index finger > middle finger > ring finger > little finger; All muscle strength values of male were greater than those of female, and the difference was statistically significant (P<0.05); There was no significant difference between the left and right side muscle strength values of all subjects (P>0.05). The reliability of muscle strength values measured at different times in 10 subjects was good. The quantitative muscle strength of each muscle group of the hand and wrist is affected by the test position, and a standardized and uniformed test position should be adopted in the actual identification. Micro FET2TM has good reliability for hand and wrist quantitative muscle strength testing. The 30° extension of the wrist can be used as the best standardized test position for the flexion muscle strength of each finger and wrist joint. The 30° position can be used as the best standardized test position for PAST.

Effectiveness of Proprioceptive Neuromuscular Facilitation and Strengthening Exercise towards Increasing Strength Stroke Patient's Hand Muscles at Tani Dan Nelayan Regional General Hospital

Stroke is a functional brain disorder that occurs suddenly with focal or global clinical signs that last more than 24 hours without signs of non-vascular causes, including signs of subarachnoid hemorrhage, intracerebral hemorrhage, ischemia, or cerebral infarction. The aim of this research is to analyze the effectiveness of proprioceptive Neuromuscular Facilitation (PNF) and Strengthening Exercises to Increase Hand Muscle Strength in Stroke Patients at the Farmers and Fishermen's Hospital, Boalemo Regency. Quaisy experimental research designed two groups pre-test and post-test design. The sample was 30 people, sampling used the purposive sampling technique. Analysis was carried out using the paired t-test and independent t-test. The results of the research were that there was a difference in Hand Muscle Strength values between those given Proprietary Neuromuscular Facilitation (PNF) with Strengthening Exercise with (p-value 0.039). The conclusion of this research is the provision of Proprioceptive Neuromuscular Facilitation (PNF). better in increasing hand muscle strength values compared to the Strengthening Exercise. It is recommended that the Farmers and Fishermen's Hospital of Boalemo Regency, in providing healing to stroke patients, apply Proprioceptive Neuromuscular Facilitation and Strengthening Exercise therapy as a complementary therapy for healing stroke patients.

Penerapan Senam Intradilitik Pada Pasien Yang Menjalani Hemodialisis Di RS PKU Muhammadiyah Gamping

Hemodialysis is a process of kidney replacement therapy. Decreased muscle strength in patients undergoing hemodialysis is a common problem caused by various factors related to chronic kidney disease and dialysis procedures. One way to treat decreased muscle strength is with intradialytic exercise therapy. Objective: To determine muscle strength after performing intradialytic exercises in hemodialysis patients. Method: The research uses a case study method, namely an individual-targeted nursing care approach. Results: After 3 intradialytic exercise interventions, an increase in muscle strength with handgrip dyanometer measurements of 7.80 and 3.50 was obtained. However, the results of measuring muscle strength using the Schawenker scale method did not show an increase, namely scale 4. Conclusion: Intradilytic exercise carried out in 3 meetings can increase hand muscle strength as measured using a handgrip dynanometer. Intradilytic exercise can be used as an alternative physical exercise during the hemodialysis process.

Hand Grip Strength as a Predictive Tool for Upper Extremity Functionality, Balance, and Quality of Life in People With Multiple Sclerosis.

Upper extremity strength and function are rarely assessed in routine multiple sclerosis (MS) care. This study aimed to evaluate hand muscle strength and functionality in individuals with MS and investigate correlations with upper extremity function, cognitive status, health-related quality of life (HRQOL), and balance. A cross-sectional study was conducted with 45 consecutive individuals with MS between the ages of 18 and 65. Upper limb motor strength was evaluated using a hand grip strength dynamometer. Upper limb functional capacity was assessed using the Nine-Hole Peg Test (9HPT) and the Duruoz Hand Index (DHI). Balance, coordination, and falls were measured with the Berg Balance Scale (BBS), Falls Efficacy Scale (FES), and the 30-Second Chair Stand Test (30CST). Cognitive function was evaluated using the Montreal Cognitive Assessment instrument and the Symbol Digit Modalities Test. Level of HRQOL was assessed using the self-reported 54-item MS Quality of Life-54 questionnaire. Out of the 45 participants (80% women, mean age 36.6 ± 8.6 years), higher hand grip dynamometer measures were strongly correlated with better DHI, 9HPT, BBS, FES, and 30CST scores. In the regression analysis, a 1-unit increase in dynamometer measures led to a 0.383 increase in overall HRQOL score. This study demonstrates that increased hand grip strength (HGS) is associated with better hand functionality, balance, and HRQOL in individuals with MS. It provides evidence to support more systematic measurement of HGS in the care of people with MS.

Use of indices to assess women’s health in wellness fitness

Background and Study Aim. With increasing focus on women's health and well-being, there's a pressing need for efficient tools to accurately reflect their physical condition and health status. This study aims to substantiate the use of indices as effective instruments for assessing women's health and wellness fitness. Material and Methods. This study involved 40 women, aged 43.33 ± 0.93 years, who participated in a wellness fitness program for 8 months. Sessions were held three times a week, each lasting 1 hour. A comprehensive health improvement program was utilized, incorporating dance aerobics, strength fitness, and stretching exercises. Anthropometric measurements were taken, and the Stange test was administered to calculate 12 health-related indices. The significance of differences was evaluated using the sign criterion (z) and Rosenbaum's Q index. Assessments were conducted both before the initiation and upon completion of the wellness program. Results. Significant changes were observed in several indices, including the Body Mass Index (z=2), Erisman Index (z=0), Vital Index (z=0), Skibinsky Index (z=1), Kerdo Autonomic Index (z=2), Robinson Index (z=3), Waist-to-Hip Ratio (z=11), Systolic Blood Pressure Index (z=5), Diastolic Blood Pressure Index (z=4), and Livy Index (z=0). Additionally, a reliable improvement in the left arm strength index was confirmed using Rosenbaum's Index (Q=7). Conclusions. The results validate the use of specific indices to evaluate the efficacy of wellness fitness programs. Notable improvements were observed in the Body Mass Index, Erisman Index, and Livy Index, indicative of enhanced physical condition and normalization of body mass, particularly significant among overweight and obese participants. An increase in the strength index reflects augmented hand muscle strength, while enhancements in the vital index signal boosted respiratory system functionality. Furthermore, changes in the Skibinsky Index, Robinson Index, and Kerdo Autonomic Index highlight an elevated adaptation capacity of the cardiorespiratory system. The comprehensive set of indices employed offers insights into the cardiovascular, respiratory, and musculoskeletal systems' state. Their applicability at both individual and group levels, combined with the simplicity of calculations, clarity, and informativeness, markedly improves the monitoring effectiveness of health and fitness status.

One-Year Post COVID-19 Change in Physical Fitness of Primary School Children and Its Individual-Level Predictors

Objectives. The study aimed to evaluate physical fitness and its dynamics in a year among primary school children aged 7 to 10 years old concerning the child’s individual factors (health-related: physical activity, sedentary behaviour; and psychosocial: physical activity enjoyment). Materials and methods. The study involved a sample consisting of 902 1st-3rd grade students (49% of boys and 51% of girls), who participated in physical fitness testing at baseline and follow-up in a year. Additionally, questionnaire-based data were collected from students and parents. Physical fitness was evaluated by administering eight out of nine tests from a 9-item test battery developed by Fjørtoft et al. (2011). The participants’ height and weight were measured using a mechanical stadiometer platform (Seca 274, Hamburg, Germany; TEM50.01%) and a portable electronic scale — a TANITA BC 420 SMA (Tanita Europe BV, Amsterdam, The Netherlands), respectively. Physical activity, sedentary behaviour, participation in sports, physical activity enjoyment were evaluated by children and parents at different time points. Results. The results indicated that physical fitness had improved from baseline to follow-up, with some exceptions for particular tests and genders. Vigorous physical activity at Time 1 predicted better hand muscle strength (Std β = .18) and agility (Std β = -.12) at Time 2. The findings showed that participation in sports at Time 1 was also predictive of improved agility (Std β =.15). Moderate to vigorous physical activity at Time 1 predicted enhanced speed at Time 2 (Std β = -.16). The motivation for physical activity at Time 2 was found to be related to improvements in agility (Std β = - 0.18) and speed (Std β = -0.30), while there was a decline in hand muscle strength (Std β = -0.11). Altogether, predictors were able to significantly explain 10 percent of agility and 13 percent of speed test results. Conclusions. As children grow and develop, their physical fitness levels tend to change in response to various factors including different physical activity indicators, as well as motivation for engaging in physical activity.

Magnetic resonance imaging T2 mapping could reflect disease status in patients with dermatomyositis or polymyositis

This study aimed to explore the value of magnetic resonance imaging (MRI) T2 mapping in the assessment of dermatomyositis (DM) and polymyositis (PM). Thirty-three confirmed cases (myosin group) and eight healthy volunteers (healthy control group) at the Department of Rheumatology and Immunology, the First Affiliated Hospital of Kunming Medical University, from October 2016 to December 2017, were collected and analyzed. Multiple parameters of the myosin group were quantified, including creatine kinase (CK), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), complement C3, and complement C4. Disease status was evaluated using a panel of tools: myositis disease activity assessment tool-muscle (MDAAT-muscle), myositis disease activity assessment tool-whole (MDAAT-all), health assessment questionnaire (HAQ), medical outcomes study health survey short form-36 item (SF-36), hand muscle strength test (MMT-8) score, and MRI T2 mapping of muscle (22 muscles in the pelvis and thighs) T2 values. The results showed that in the myositis group, the measurements for CK, ESR, CRP, complement C3, and complement C4 were 457.2 (165.6, 1 229.2) IU/L, 20 (10, 42) mm/1h, 3.25 (2.38, 10.07) mg/L, 0.90 (0.83, 1.06) g/L, and 0.18 (0.14, 0.23) g/L, respectively. The scores for MMT-8, MDAAT-muscle, MDAAT-all, HAQ, and SF-36 were 57.12±16.23, 5.34 (4.00, 6.00), 34.63±12.62, 1.55 (0.66, 2.59), and 44.66±7.98, respectively. T2 values were significantly higher in all 22 muscles of the pelvis and thighs of patients with DM or PM compared with the healthy controls [(54.99±11.60)ms vs. (36.62±1.66)ms, P<0.001], with the most severe lesions in the satrorius, iliopsoas, piriformis, gluteus minimus, and gluteus medius muscles. The total muscle T2 value in the myositis group was positively correlated with CK, MDAAT-muscle, MDAAT-all, and HAQ (r=0.461, 0.506, 0.347, and 0.510, respectively, all P<0.05). There was a negative correlation between complement C4, SF-36, and MMT-8 scores (r=-0.424, -0.549, and -0.686, respectively, all P<0.05). Collectively, the findings from this study suggest that MRI T2 mapping can objectively reflect the disease status of DM and PM.

Improved hand muscle ability after 6 weeks of squeezing a tennis ball exercise in children with spastic cerebral palsy

Children with cerebral palsy tend to be less physically fit compared to typically developing peers. This is mainly due to the lack of physical activity and exercise during their childhood. If adolescents and adults with cerebral palsy don't get enough exercise, it could result in reduced mobility and physical fitness. It is very important to start treatment for cerebral palsy when the child is young. The goal of this research was to investigate how children with spastic cerebral palsy might benefit from enhancing their hand muscle functioning by squeezing a sponge tennis ball during hand-strengthening exercises. The study implemented a true experimental design with a pre-and post-test control group. This methodology allowed for a rigorous and systematic investigation, ensuring reliable and valid results. Twelve boys between the ages of 15 and 17 who were all diagnosed with spastic cerebral palsy participated in sponge tennis ball gripping exercises as part of a program of intervention. A 30-minute workout of sponge tennis ball squeezing involves 4-6 sets of 15-20 repetitions with passive rests of 30 seconds. The prescribed regimen involves conducting the exercise four times per week for six weeks. Before and after the intervention, the Hand Grip Dynamometer was used to assess the hand muscle strength of children with spastic-type cerebral palsy. Data analysis techniques were applied using the independent samples t-test with a significant level of 5%. The results showed the average muscle strength of the right hand after the intervention between control vs. experiment (4.36 ± 1.35 kg vs. 34.16 ± 3.34 kg (p = 0.000)), the average muscle strength of the left hand after the intervention between control vs. experiment (2.31 ± 0.49 kg vs. 30.18 ± 2.08 kg (p = 0.000)). The findings of the research suggest that engaging in frequent tennis ball gripping exercises, conducted on a frequency of four sessions per week over a duration of six weeks, may yield notable improvements in the hand muscle functionality of children diagnosed with spastic-type cerebral palsy. The findings suggest that including these activities in treatment, procedures may provide significant value for persons with this particular illness.

Interrelations of physical state parameters and biological age of students in the process of physical education

Background and Study Aim. The objective of the study is to investigate the relationships of students' biological age (BA) with the parameters of functional and physical fitness (PF) in the process of adaptation to standard (university) and experimental physical education programs. Material and Methods. The studies were conducted at the National University of Telecommunications of Ukraine and involved 140 students aged 17-18 years old, comprising 80 boys and 60 girls. We recorded 55 indices of students' functional state and physical fitness, and determined their Body Mass Index (BMI). The experimental data were processed using methods of correlation, dispersion, and regression analysis. Mathematical models describing the relationships between BMI and key indicators of students' physical well-being were developed. Results. The impact of the program on 17-18-year-old students is marked by a decrease in BMI, an increase in the levels of physical fitness and overall well-being among both the experimental group of girls and boys. Additionally, there is a reduced correlation between BMI and the parameters of their physical health. The key indices of functional state and physical fitness determining the BMI of male and female students were identified. Multiple regression models were developed to illustrate the dependence of male and female BMI on somatic and functional indices. Quantitative characteristics of the degree of partial and total impact of key indices on male and female BMI were provided. It was found that the key indicators of students' physical state (PS) structure, which exerted the most significant influence on BMI, differ between young men and women. In young men, the key indicators influencing BMI include the following: Vital capacity (VC) accounts for 51.9% of BMI variation; self-perceived health status (SPHS) contributes 15.3%; static balancing (SB) affects 8.5%; inspiration breath-hold time (IBH) influences 8.4%; expiration breath-hold time (EBH) has a 0.8% impact; systolic blood pressure (SBP) plays a role with 4.6%; the number of sit-ups in 30 seconds (SU30s) is associated with 0.9%; and left hand muscle strength has a 0.6% influence. In girls, the key indicators are VC (34.5% of BMI variation), SBP (23.1%), and SB (7.9%). Conclusions. The experimental program of increased motor activity leads to an increase in the functional and motor capabilities of students, while simultaneously decreasing their BMI. Among the parameters studied, changes in vegetative parameters have the greatest impact on reducing students' BMI during the annual cycle of long-term adaptation to physical loads. In contrast, changes in somatic parameters and physical fitness parameters have a lesser influence on students' BMI. The calculated equations of multiple regression serve as model characteristics that reflect the relationships between BMI and the key indicators of functional state and physical fitness in 17-18-year-old students. These equations can be utilized to estimate, model, and predict the BMI of 17-18-year-old students of different genders when altering the parameters of their physical state in various conditions of daily life and activity.

The frequency of sarcopenia in haemophilia patients: Effects on musculoskeletal health and functional performance.

In patients with haemophilia A, chronic arthropathy develops over time as a result of recurrent joint bleeds, which leads to restricted mobility and disability in the affected joints. There are limited studies in the literature evaluating sarcopenia in patients with haemophilia. The present study aims to determine the prevalence of sarcopenia in severe haemophilia-A patients and to evaluate musculoskeletal health and functional performance. Thirty haemophilia-A patients and 26 adult male volunteers were enrolled in the study. For detection of sarcopenia, the appendicular skeletal muscle mass (ASM) obtained by bioelectrical impedance analysis (BIA) was divided by height squared (m2 ) to obtain the appendicular skeletal muscle mass index (ASMI) value. The thighs of both lower extremities were measured using the Modified Sonographic Tight Adjustment Ratio (STAR) method, which was obtained by adding the bilateral rectus femoris and vastus intermedius muscle thicknesses measured by ultrasound. Hand and quadriceps muscle strength (MS) were measured with a dynamometer. Physical performance was determined using the walking speed (WS), timed up-and-go test (TUGT), 5-repetition sit-to-stand test (5RSTS), and 6-min walk test (6MWT). Haemophilia Joint Health Score (HJHS) and Haemophilia Early Arthropathy Detection-Ultrasonography (HEAD-US) were also used to assess the musculoskeletal system. According to the modified STAR values calculated based on body mass index, sarcopenia was present in 15 (50%) of 30 patients. However, based on the ASMI-BIA values, sarcopenia was present in only two (6.6%) patients. A weak correlation was found between ASMI and HJHS, HEAD-US, WS, TUGT, and hand MS (left), while a moderate correlation was found with knee MS (right), knee MS (left), and 5RSTS. A strong correlation was found between the modified STAR score and HEAD-US, HJHS, knee MS (left), 5RSTS, TUGT, and WS, while a moderate correlation was found with hand MS (left), hand MS (right), and knee MS (right). This study showed muscle loss, joint mobility restrictions, and decreased functional capacity in haemophilia patients and demonstrated the presence of sarcopenia in these patients. The STAR measurement method showed stronger relationships with MS and functional performance values than ASMI measurements in terms of evaluating sarcopenia.

A comparative study of flexible and rigid hand-oriented exoskeleton robots

The purpose of this paper is to compare and evaluate the performance differences between flexible and rigid hand exoskeletons in terms of functional recovery and assistance in daily activities.Flexible hand exoskeletons are lightweight and soft devices with stretchable materials and flexible mechanisms designed to mimic the flexibility and versatility of natural hand movements.They typically consist of elastic materials, sensors and actuators that enable natural hand movements and provide light strength support.The main advantages of flexible hand exoskeletons are their comfort and flexibility, and their ability to provide personalized assistance for a variety of daily activities and tasks.This form of design is suitable for patients who require mild hand support and dexterity, such as individuals with mildly impaired hand motor function or who need to perform fine motor movements. In contrast, a rigid hand exoskeleton is a more rigid and stable device that uses robust materials and a rigid mechanism designed to provide a greater degree of strength support and stability.They are typically constructed of metal or composite materials, have a high degree of rigidity and stability, and provide strength support through electrical motors or hydraulic systems.The main advantage of a rigid hand exoskeleton is its higher force output and stability for tasks that require higher loads or complex movements.This form of design is suitable for patients who require greater strength support and stability, such as individuals with reduced hand muscle strength or who need to carry heavy loads

Case Report of Cylindrical Grip on Improving Upper Limb Muscle Strength of SNH Patient

Non-hemorrhagic stroke patients who do not get optimal treatment will experience disability or physical weakness such as paralysis and weakened muscle strength, which results in a lack of joint range of motion, limb function, and decreased daily life activities. One of the ROM techniques to help recover the upper extremities to stimulate the hands, can be done with cylindrical grip exercises which are functional hand exercises by grasping a cylindrical object in the palm of the hand which aims to support the recovery of the ability to move and function of the hand. Objective: This case repost aims to determine the effect of giving cylindrical grip to stroke ptients to increase muscle strengt in the upper extremities. Method: The method used is a descriptive case report design based on Evidance Based Nursing (EBN) conducted on two subjects with non-hemorrhagic stroke. Results: After the implementation of ROM exercise nursing: cylindrical grip for 3 days in each patient starting from 18-22 September 2023 which was carried out for 5 minutes and repeated 7 times, changes were obtained in the muscle strength of Mrs.M's right hand which was originally 3 to 4 and Mr.W which was originally left hand muscle strength 2 to 4. Conclusions: ROM Exercise: Cylindrical grip can improve upper extremity muscle strength in non-hemorrhagic stroke patients.

Dynamics of strength capabilities of the organism in conditions of ecological and biological well-being

Regular physical activity is of great importance in relation to the formation of all human physical qualities. Differences in the level of strength development within individual sports are recognized. Taking into account this fact, it seems important to study the level of development of strength quality as athletes-athletes grow older. The aim of the study: to evaluate the dynamics of age-related changes in strength abilities in different categories of unicycling athletes. Eighty-one male athletes in adolescence or young adulthood, who regularly trained in judo, hand-tohand combat or Greco-Roman wrestling sections, were studied. A group of adolescents (14 individuals) who had not practiced sports during their lives and a group of non-sports-connected young men (13 individuals) were examined. Hand muscle strength was recorded by hand dynamometry with calculation of Student's t-criterion. During the evaluation of the level of strength in unicycling athletes, it was found that its greatest development was in wrestlers in adolescence and adolescence. In judoists and hand-tohand athletes it was a little less pronounced and comparable. The lowest level of it took place in non-sport-related examinees. As growing up, for all categories under consideration, an increase in strength capabilities in adolescence compared to the level in adolescence was noted.

The benefit of a four-week range of motion exercise on hand muscle strength in children with Down Syndrome

Background and Study Aim. Down syndrome is linked to motor disorders, leading to reduced physical activity and fitness, including diminished aerobic endurance and muscle strength. Study Aim - to investigate the efficacy of range of motion exercises in enhancing hand muscle strength in children with Down syndrome. Material and Methods. This research employed a true experimental approach with a pre-test and post-test control group design. The study sample consisted of 18 children with Down syndrome, aged between 10 to 12 years. The selected participants underwent range of motion exercises, which were systematically conducted 3 times a week over a span of 4 weeks. To assess the efficacy of the exercises, hand muscle strength was gauged both before and after the intervention. The measurement tool utilized was a Handgrip Strength (HGS) test, executed with the aid of a Takei dynamometer, ensuring accuracy and consistency in the results. For the statistical analysis of the collected data, a paired sample t-test was employed. The threshold for statistical significance was set at a p-value of less than 0.05 or 5%. Results. The range of motion exercise, when carried out for 4 weeks, has been shown to increase hand muscle strength in children with Down syndrome. Based on the results of statistical analysis of hand muscle strength pretest and posttest in the control group (CtrG) (6.06 ± 2.11 vs. 6.13 ± 2.23 kg, p ≥ 0.05), and the experimental group (ExpG) (6.10 ± 2.68 vs. 8.95 ± 2.69 kg, p ≤ 0.001). Conclusions. These exercises play a pivotal role in boosting muscle strength in children with Down syndrome. Emphasizing their physical health, especially muscle strength, is vital for their current educational pursuits and future well-being.

Resistant Plyometric Training İncreases Muscle Strength in Young Male Basketball Players

Purpose: In this study, the effect of 12-week resisted, and non-resistive plyometric training applied to young male basketball players on hand, trunk and leg muscle strength was examined. &#x0D; Method: 27 athletes aged 15+0.8 years old were included in the study. Athletes were divided into 3 groups: control (C), plyometric (P) and weight vest + plyometric (W), with 9 athletes each. All 3 groups performed routine basketball training for 12 weeks. Group C performed routine basketball, group P performed plyometric training using body weight, and group W performed plyometric training with a weight vest. Following the end of the training program, the hand, back and leg muscle strength of all athletes was measured using a dynamometer. The data obtained in the study were presented as mean + SD, comparison between measurements was evaluated with the t test, and p

Gender differences in hand grip strength of children in Bosnia and Herzegovina aged 11 to 14 years. A cross - sectional study

Hand grip strength (HGS) serves as a multifaceted and critical parameter within the domain of motor function and is widely recognized as a pivotal aspect in the comprehensive evaluation of the development of school-aged children. The aim of the research was to determine the values of HGS, the trend of changes and differences between boys and girls aged 11-14 years from Bosnia and Herzegovina. A cross-sectional survey was conducted on a sample of 585 students. The subsample was divided into 307 boys (11y = 81; 12y = 87; 13y = 77; 14y = 62) and 278 girls (11y = 66; 12y = 83; 13 y =79; 14y = 50). Hand muscle strength was measured using the method of isometric dynamometry in laboratory conditions, with a standardized test - Hand grip (according to the American Society of Hand Therapists). The force achieved during the maximum hand grip (dynamometry) was measured with a digital hand dynamometer CAMRY-EH101, USA. Statistically significant differences between male and female respondents were confirmed (for age 12, T = -2.651, p&lt;0.009; for age 13, T =-5.178; p&lt;0.000; for age 14, T =-7.124; p&lt;0.000). In both sexes, the dominance of the strength of the right (dominant) hand than left (non-dominant) hand is evident. The study confirmed a positive trend of strength development in both sexes, as well as gender differences in the HGS test between children aged 12 to 14 years.

Hubungan Fleksibilitas serta Keseimbangan dan Kekuatan Genggaman dengan Hasil Memanjat Nomor Boulder

In a certain sport side by side with supporting physical conditions as is the case in rock climbing especially boulder numbers, physical conditions such as flexibility, balance and grip strength have an impact on the final result of a climb. This study aims to determine the relationship between flexibility and balance and strength. Hands on Results of Climbing Number Boulder UKM PAMOR FPOK UPI. Quantitative correlation method. The method used is correlation analysis with only one treatment meeting. Quantitative correlation research design. The method used is correlation analysis with only one treatment meeting. The subjects of this study were 9 athletes in the climbing division of UKM PAMOR FPOK UPI. The instruments used in this study were the V-Sit and Reach test, to determine a person's level of muscle flexibility, Standing Stroke to determine a person's balance level and the Handgrip Dynamometer to measure the level of hand muscle strength. The Sig F Change value and the R square value (Correlation Coefficient) in athletes with high scores Show a significant and strong relationship simultaneously between flexibility, balance, and grip strength on the results of climbing the Boulder UKM PAMOR FPOK UPI. Thus it can be concluded that there is a relationship between flexibility and balance as well as grip strength on the results of climbing the Boulder Number UKM PAMOR FPOK UPI.

The effect of the circuit bodyweight training method on increasing muscle strength, muscle endurance, and balance of wrestling athlete

This study aims to find out: (1) the effect of the circuit bodyweight training method on increasing muscle strength, muscle endurance, and balance of wrestling athletes, (2) the difference in the effect of the circuit bodyweight training method between the treatment group and the control group on increasing strength, muscle endurance, and balance of wrestling athletes. This type of research is quasi-experimental with a pre-test design and post-test control group design. The sample in this study amounted to 77 people taken using random sampling techniques. The subjects were divided into 2 groups, namely the group given the treatment of as many as 36 people and the control group with as many as 31 people. Instruments used to measure hand muscle strength are using a hand grip dynamometer, arm muscle endurance using a push-ap, abdominal muscle endurance using a sit-ap, Leg muscle strength using a wall sit test, and balance test using a standing stork test. The data analysis technique used is an independent sample t-test followed by a paired sample t-test. The results showed that: 1) There was a significant effect of the circuit bodyweight training method on increasing muscle strength, muscle endurance, and balance in wrestling athletes, in the treatment group evidenced by data on hand muscle strength, hand muscle endurance, abdominal muscle endurance, leg muscle strength, and balance obtained a significance value smaller than 0.05 (p &lt; 0.05). 2) There is a significant difference in influence between the treatment group and the control group on increasing muscle strength, muscle endurance, and balance in wrestling athletes, as evidenced by the average value of hand muscle strength, hand muscle endurance, abdominal muscle endurance, Leg muscle strength, and balance in the treatment group was 60.46 while the average value of hand muscle strength, hand muscle endurance, abdominal muscle endurance, leg muscle strength, and balance in the control group was 48.54 with an average post-test difference of 11.92. So this study concluded that there was a significant increase in hand muscle strength, hand muscle endurance, abdominal muscle endurance, leg muscle strength, and balance before and after treatment, and there was no significant improvement in the control group. The treated group had better hand muscle strength, hand muscle endurance, abdominal muscle endurance, leg muscle strength, and balance compared to the untreated control group.

Clinical considerations for sarcopenia in older Colombian Afro-descendant and mestizo women.

To identify the frequencies of clinical suspicion of sarcopenia (CSS) and probable sarcopenia (PS) and their association with ethnic groups. This cross-sectional study categorized 700 women into Afro-descendant and mestizo ethnic groups. Calf circumference, muscle strength, and gait speed were measured. CSS was assessed using a sarcopenia risk scale and the measurement of calf circumference; the muscle strength of the dominant hand was used to establish PS. Unadjusted logistic regressions assessed associations between CSS/PS and ethnicity. Two adjusted logistic regression models included relevant covariates. CSS and PS were identified in 10.4% to 20.7% and 7.8% to 14.1% of study participants, respectively. Compared with mestizos, Afro-descendants had a more favorable sarcopenia risk score, greater calf circumference, and greater muscle strength and were associated with a lower risk for CSS (odds ratio [OR]: 0.13, 95% confidence interval [CI]: 0.06-0.28 and OR: 0.12, 95% CI: 0.07-0.21) and PS (OR: 0.12, 95% CI: 0.05-0.30 and OR: 0.11, 95% CI: 0.06-0.21). Compared with mestizos, CSS and PS were less frequent among Afro-descendants, who had 87% to 88% lower probability of CSS and 88% to 89% lower probability of PS.