Finger Grip Strength Research Articles

COMPARISON OF MOTOR PERFORMANCE BETWEEN CHILDREN WITH MULTIPLE DISABILITIES AND TYPICAL DEVELOPMENT

Purpose: Individuals with multiple disabilities have two or more disabilities at the same time, and these impairments can cause qualitatively and quantitatively insufficient motor performance. This study aimed to compare the motor performance of children with multiple disabilities to children with typical development.
 Methods: This prospective study included 26 children with multiple disabilities who had visual impairment according to the International Statistical Classification of Diseases and Related Health Problems: 11th Revision, and 20 children with typical development. The Bruininks-Oseretsky Test of Motor Proficiency Second Edition Short Form was used to examine motor proficiency. A standard hand dynamometer and pinchmeter were used to assess hand and finger grip strength. The Nine-Hole Peg Test was used to evaluate performance-based hand functions.
 Results: Children with multiple disabilities had lower scores for balance control (p

Is mirror therapy combined with a routine physiotherapy protocol effective for children with obstetrical upper brachial plexus palsy?

Study designRandomized controlled study. IntroductionMirror therapy is a rehabilitation strategy based on the repeated use of the mirror illusion and also one of the treatment choice of brachial plexus injuries. PurposeWe aimed to determine the effects of mirror therapy combined with a routine rehabilitation program on upper limb motor function in children with obstetric brachial plexus injury. MethodsTwenty children with obstetric brachial palsy were included in this study. They were randomly allocated to either control (n = 10) or mirror therapy (n = 10) group. The following clinical tools were used to assess the upper extremity function: Active Movement Scale (AMS), Modified Mallet Scale (MMS), Hand Grip Strength (HGS) Test, Finger Grip Strength (FGSM) Test, Box and Block Test (BBT), Nine Hole Peg Test (9-HPT), and goniometric measurement. Both groups received the same routine physiotherapy program for 8 weeks. The study group underwent mirror therapy in addition to the rehabilitation program. ResultsThe mean age of the study population was 11.35 ± 4.12 years. There was no change in the goniometric values, AMS and MMS scores after the treatment in both groups (p > 0.05), except for the improvement of the wrist extension in the study group (p < 0.05). There was an increase in both HGS and FGS scores in the study group. Only FGS scores improved in the control group after the intervention (p < 0.05). 9-HPT and BBT scores improved in both groups (p < 0.05). All other parameters tested were comparable between the two groups after the treatment. ConclusionsThe results of this study did not show any additional benefits of mirror therapy combined with a rehabilitation protocol compared to routine physiotherapy treatment, but was not adequately powered to do so.

Perbedaan Pengaruh Latihan Handgrip &amp; Dumbell Terhadap Peningkatan Kekuatan Genggaman Jari Pada Pemain Bulu Tangkis

This study was to determine the effect of handgrip and dumbbell exercises on increasing grip strength in badminton players. This type of research is quantitative research with experimental methods and the non-equivalent group design method. The sample of this study amounted to 20 respondents who were divided into 2 groups. Group 1 was given a handgrip exercise and group 2 was given a dumbbell exercise. The sampling technique used purposive sampling. The data analysis method used prerequisite test (normality test and homogeneity test) and hypothesis test using t test. Based on the results of the study, the average value of measurements before handgrip exercise was 33.19 and after handgrip exercise, the average value was 36.2 with an increase in value of 3.01. In the group that was given dumbbell training, before being given the exercise, the average value was 36.4 and after the exercise, the average value was 38.53 so that the average increased by 2.13. the results obtained tcount -1.1428 &lt; ttable 1.8124 with an increase in the value of the exercise score before and after exercise in the handgrip group of 3.01 and in the dumbbell group of 2.13 so it was concluded that there was an insignificant effect between the group given the handrip exercise. as well as the group that was given dumbbell exercises. Handgrip exercises and dumbbell exercises have an effect on increasing the finger grip strength of badminton players

Effects of Different Hangboard Training Intensities on Finger Grip Strength, Stamina, and Endurance.

Climbing-specific training programs on hangboards are often based on dead-hang repetitions, but little is known about the real intensity applied during such effort. The aim of this study was to quantify and compare the effects of different training intensities (maximal, high submaximal, and low submaximal intensities) on the fingers' physiological capabilities using a hangboard fitted with force sensors. In total, 54 experienced climbers (13 women and 41 men) were randomly divided into four groups, with each group following different training intensity programs: maximal strength program performed at 100% of the maximal finger strength (MFS; F100), intermittent repetitions at 80% MFS (F80), intermittent repetitions at 60% MFS (F60), and no specific training (control group). Participants trained on a 12 mm-deep hold, twice a week for 4 weeks. The MFS, stamina, and endurance levels were evaluated using force data before and after training. Results showed similar values in the control group between pre- and post-tests. A significantly improved MFS was observed in the F100 and F80 groups but not in the F60 group. Significantly higher stamina and endurance measurements were observed in the F80 and F60 groups but not in the F100 group. These results showed that a 4-week hangboard training enabled increasing MFS, stamina and endurance, and that different improvements occurred according to the level of training intensity. Interestingly, the different intensities allow improvements in the targeted capacity (e.g., stamina for the F80 group) but also in the adjacent physiological capabilities (e.g., MFS for the F80 group).

Abstract 11194: Reducing Arm Muscle Activation by Using an Ablation Catheter Torque Tool: Electromyographic Analysis and User Perception

Background: Cardiac ablation catheters are small in diameter and require significant finger dexterity and grip strength to maintain stability and maneuver safely. We designed a catheter torque tool to reduce the muscle activation required to manipulate cardiac ablation catheters and improve user perception of task workload. Objective: The purpose of this study was to evaluate muscle usage and user perception when completing a simulated ablation task with and without the use of a novel ablation catheter torque tool. Methods: Participants, comprised of cardiology attendings and fellows, were fitted with surface electromyographic (EMG) sensors on 6 key muscle groups in the left hand and forearm. Maximum voluntary contraction (MVC) was collected for equal comparison among participants. A standard ablation catheter was inserted into a pediatric cardiac ablation simulator and subjects navigated the catheter tip to 6 specific electrophysiologic targets including a 1-minute simulated radiofrequency lesion. EMG activity normalized to percentage of MVC was collected throughout the task. The task was repeated 4 times, twice with and twice without the torque tool, in randomized order. A NASA Task Load Index (TLX) survey was completed by the participant at the conclusion each task. Results: Thirteen participants completed the study. Using Wilcoxon’s test, there was a significant difference (P &lt; 0.01) in mean percent of MVC in 4 of the 6 muscle groups when comparing bare catheter versus catheter with torque tool: abductor pollicis, brachioradialis, flexor carpi ulnaris, and extensor carpi radialis. The total expended energy for the abductor pollicis (P &lt; 0.01) and extensor carpi radialis (P = 0.02) were significantly reduced. Perceived physical demand, effort, and frustration were also significantly reduced when using the torque tool (P &lt; 0.01). Conclusions: Use of our novel catheter torque tool reduced the amount of muscle activation necessary to manipulate an ablation catheter during a simulated ablation task. Users’ perceived physical demand, effort, and frustration were less when the tool was used. This tool may improve catheter stability, increase procedure safety, and reduce operator stress and muscle fatigue when performing catheter ablation procedures.

Effects of system training on finger-grip strength and endurance in sport climbers

Effects of system training on finger-grip strength and endurance in sport climbers

Comparison of Grip Strength in Recreational Climbers and Non-Climbing Athletes-A Cross-Sectional Study.

In recent years, climbing sports is on the rise making its Olympic debut in 2021. Physiological traits of professional rock climbers have been intensively studied, while recreational indoor climbers are less investigated, especially regarding grip strength and upper extremity proportions. In this cross-sectional study, we aimed to understand what discerns the recreational climber from disparate recreational athletes. Therefore, we analyzed 50 recreational climbing (30.3 ± 12.7 years, 1.76 ± 0.09 m and 67.0 ± 14.0 kg) and 50 non-climbing athletes (26.4 ± 9.1 years, 1.78 ± 0.09 m and 73.2 ± 12.6 kg) to detect differences in their finger grip strength of seven different pinches. In addition, the upper extremity proportions were measured. Even in recreational climbers, almost all analyzed grips were stronger compared to other athletes (p < 0.05 in all but non-dominant fist, small to moderate effect sizes). Only the grip strength of the whole non-dominant hand was not significantly different (p = 0.17). Interestingly, differences between the dominant and non-dominant hand appeared to be larger in the non-climbing (all p < 0.05, all but one with small effect size) compared to the climbing cohort (pinch I/IV and pinch I/II+III+IV not different and mostly trivial). Circumference measurements showed that 10 cm below the lateral epicondyle, climbers exhibited significantly greater perimeter compared to non-climbing athletes (p < 0.05, small effect size). Our results show that recreational climbers have higher measured grip strength, but less profound differences between the dominant and non-dominant hand.

Assessment of grip-motion characteristics in carpal tunnel syndrome patients using a novel finger grip dynamometer system

BackgroundGrip strength measurement is widely used in daily medical practice, and it has been reported that the grip strength decreases in patients with carpal tunnel syndrome (CTS). However, conventional grip dynamometers evaluate only the maximum power of total grip strength and cannot measure the time course of grip motion. In this report, we aimed to determine the grip characteristics of CTS patients by measuring the time course of each finger’s grip motion and to analyze the relationship between finger grip strength and subjective symptoms using this new grip system.MethodsThe grip strength of each finger was measured using the new grip system that has four pressure sensors on the grip parts of each finger of the Smedley grip dynamometer. We analyzed the time course of grip motion and relationship between finger grip strength and subjective symptoms in 104 volunteer and 51 CTS hands. The Japanese Society for Surgery of the Hand version of the Carpal Tunnel Syndrome Instrument (CTSI-JSSH) and the Disability of Arm, Shoulder, and Hand questionnaire (DASH) were used as subjective evaluation scores.ResultsIn the CTS group, the grip time with the index, middle, and ring fingers was longer, and the time at which strength was lost after reaching the maximum was earlier. Patients with severe subjective symptoms tended to not use the index and middle fingers during grip motion.ConclusionsThis new system that measures each finger’s grip strength at one time and record the time course of grip motion could quantify a patient’s symptoms easily and objectively, which may contribute to the evaluation of hand function.

Grip Force Measurement as a Complement to High-Resolution Ultrasound in the Diagnosis and Follow-Up of A2 and A4 Finger Pulley Injuries.

The ability of finger flexors to generate force has been studied in relation to climbing performance. However, not much attention has been paid to the decrease in finger grip force in relation to annular pulley injuries. The purpose of the present study was to determine if an injured annular pulley implies a finger flexor force decrease, as well as its relation to clinical and sonographic changes. We performed an observational study in 39 rock climbers with A2 or A4 pulley injuries to the 3rd or 4th fingers. The variables considered were pain upon palpation, ultrasound tendon–bone distance, and finger grip strength decrease. Three rock climbing grip types were considered: the one finger crimp, open crimp, and close crimp. Injured rock climbers presented a decrease in finger grip strength compared to non-injured controls when performing a one finger crimp (p < 0.001). There exists a significant correlation between a tendon–bone distance at the level of the injured pulley and a decreased finger grip strength measured by performing a one finger crimp (p = 0.006). A decrease in finger grip strength could be considered in the diagnostic and follow-up process of A2 and A4 pulley injuries to the 3rd and 4th fingers.

The association between injury severity and psychological morbidity, hand function, and return to work in traumatic hand injury with major nerve involvement: A one-year follow-up study.

We aimed to investigate the association between the severity of the injury and psychological morbidities, hand functions, and return to work (RTW) in traumatic hand injury (THI) with major nerve involvement. Thirty-two patients had THI with major nerve involvement were enrolled in this study. The demographic and clinical characteristics of the patients were recorded after the injury. The severity of the injury was evaluated using the modified Hand Injury Severity Score (MHISS). The Disabilities of the Arm, Shoulder, and Hand (Q-DASH) score and Duruöz Hand Index (DHI) were used to assess the hand function. Beck Anxiety Inventory (BAI), Beck Depression Inventory (BDI), and Impact of Event Scale-Revised (IES) were performed to assess psychological morbidity. These assessments were performed after injury and at the end of the first year. Time to RTW was recorded in the first year after the injury. Jamar Hand Dynamometer and pinch meter were used for the measurement of hand and finger grip strength at the end of the first year. There were significant improvements in IES-R, BDI, BAI, Q-DASH, and DHI scores at the end of the first year compared with baseline scores. We found a significant correlation between MHISS and time of RTW, Q-DASH, and pinch strengths. We found no significant correlation between MHISS and IES-R, BDI, BAI, and grip strength. The severity of the injury is significantly associated with hand functions, pinch strengths, and RTW in THIs with major nerve involvement. The findings showed that there was no association between the severity of the injury and psychological morbidities in the present study.

Comparison Level of Handgrip Strength, Finger Grip Strength and Anthropometric Measurement among Artificial Wall Athletes

Purpose: Sport climbing came about in 1980 as a means of physical and technical training for high performance mountain climbers and it became popular as a competitive and recreational sport activities. The aim of this study were to compare the level of handgrip strength in male athletes between three different categories of climbing (boulder, lead, and speed) during indoor wall climbing competition. Grip strength refers to the ability of the fingers and hand to generate muscle power and force (Chang, Chou, Lin, Lin, & Wang, 2010). Methodology: Ex-post facto because the characteristics tested on the subjects occur naturally and cannot be manipulated. Participants were 123 males (boulders; 41, lead; 41, speed; 41) whose average age is 22.46±4 years. All of them are students of a university in Malaysia. The handgrip strength was measured statically using a hand dynamometer (handgrip). Descriptive statistics was used to compare the different of handgrip strength in three categories. Data from both strength tests were compared for the three categories of climbing using ANOVA. Result: Descriptive data for boulder (M=102.646; SD=14.71), lead (M=92.42; SD=15.88), and speed (M=88.13; SD=16.43) were determined. The findings showed significant differences in handgrip strength score in three categories of climbing [F (2,120) =9.26, p=0.000)]. Data analysis by using post hoc turkey test showed significance difference between boulder and lead (p<0.01), and boulder and speed (p=0.000). Finding and discussion: Conclusion from this study boulder climber are stronger the lead climbers in handgrip strength.

The Sparthan Three-Dimensional Printed Exo-Glove: A Preliminary Evaluation of Performance Via Case Study

This paper describes the development and testing of a low-cost three-dimensional (3D) printed wearable hand exoskeleton to assist people with limited finger mobility and grip strength. The function of the presented orthosis is to support and enable light intensity activities of daily living and improve the ability to grasp and hold objects. The Sparthan Exoskeleton prototype utilizes a cable-driven design applied to individual digits with motors. The initial prototype is presented in this paper along with a preliminary evaluation of durability and performance efficacy.

A new finger-preserving procedure as an alternative to amputation in recurrent severe Dupuytren contracture of the small finger

BackgroundRecurrent severe Dupuytren contracture of the small finger’s proximal interphalangeal (PIP) joint is a difficult problem. Further surgery carries high risk of complications and poor outcome. Patients are often offered finger amputation. We have devised a novel surgical procedure consisting of middle phalanx monoblock resection and ligament reconstruction to create a new functioning interphalangeal joint.MethodsTwo patients requesting small-finger amputation because of severe PIP joint contracture after multiple treatments for Dupuytren contracture were offered and accepted this new procedure. Through a dorsal incision the extensor tendon is incised longitudinally exposing the middle phalanx and interphalangeal joints. The collateral ligaments of both interphalangeal joints are detached from the middle phalanx. The middle phalanx is dissected from soft tissues (including the flexor digitorum superficialis tendon) and removed. The distal phalanx is brought proximally and the ends of the collateral ligaments are sutured with non-absorbable sutures with the joint held in full extension and congruency. The two patients were evaluated at 18 months and 15 months after surgery, respectively.ResultsBoth patients regained good finger posture with almost full extension and had normal sensation and no pain. Active flexion in the new interphalangeal joint was 60 degrees and 35 degrees, respectively. Both patients had full metacarpophalangeal joint flexion and extension, normal 2-point discrimination in the small finger and higher grip strength in the treated than the contralateral hand. Radiographs showed a congruent new interphalangeal joint. Both patients were very satisfied with the outcome.ConclusionsIn patients with Dupuytren disease and severe PIP joint contracture after multiple treatments, this novel procedure consisting of middle-phalanx excision and ligament reconstruction creating a new functioning interphalangeal joint has good short-term outcomes and is a favorable alternative to finger amputation. Longer follow-up will show whether these results are durable.

Effectiveness of Superficial Radial Nerve Block on Pain, Function and Quality of Life in Patients With Hand Osteoarthritis: A Prospective, Randomized and Controlled Single-Blind Study.

This study aims to investigate the effects of ultrasound-guided superficial branch of the radial nerve block on pain, function and quality of life in patients with hand osteoarthritis. In this prospective, randomized and controlled single-blind study, 50 female patients (mean age 59.0±5.1 years; range, 46 to 64 years) diagnosed with hand osteoarthritis were randomized into two groups. Group 1 (n=25) was administered an ultrasound-guided superficial branch of the radial nerve injection (with a combination of 2 mL 0.25% bupivacaine and 1 mL methylprednisolone acetate) + exercise, while group 2 (n=25) only exercised. Patients were assessed with a visual analog scale for pain, hand grip strength, finger grip strength, Quick Disability of the Arm, Shoulder and Hand questionnaire, Duruöz Hand Index and Short-form 12. Data were obtained before treatment (W0), in the second week after treatment (W2) and in the fourth week after treatment (W4). In group 1, a statistically significant improvement was obtained in all parameters at both W2 and W4 compared to the values recorded at W0 (p<0.05). In group 2, a statistically significant improvement was observed only in the parameters of hand grip strength and finger grip strength at W2 and W4 (p<0.05). A comparison of the scores of the two groups showed statistically significant superior improvement in group 1 in all parameters at both W2 and W4 (p<0.05). The findings of our study showed that an ultrasound-guided superficial branch of the radial nerve block combined with exercise is a significantly superior treatment to exercise-only regarding the improvements in the parameters of pain, function and quality of life in hand osteoarthritis patients.

Effectiveness of Pelotherapy in carpal tunnel síndrome

Carpal tunnel syndrome (CTS) is the most common neuromuscular cause of upper extremity disability. We aimed to investigate the effectiveness of peloid therapy in patients with CTS. This randomized, controlled, single-blind study enrolled 70 patients between the ages of 30 to 65 who had a diagnosis of either mild, mild-tomoderate, or moderate CTS. The patients were randomized into two groups using random number table. In the first group, (Group 1) (n = 35), patients were given splint (every night for 6 weeks) + peloid treatment(five consecutive days a week for 2 weeks) and in the second group, (Group 2) (n = 28), patients received splint treatment (every night for 6 weeks) alone. The patients were assessed by using visual analog scale (VAS) for pain, electroneuromyography (ENMG), the Boston Carpal Tunnel Syndrome Questionnaire (BCTSQ), hand grip strength (HGS), finger grip strength (FGS), and Short Form-12 (SF-12). The data were obtained before treatment (W0), immediately after treatment (W2), and one month after treatment (W6). Both in Group 1 and 2, there was a statistically significant improvement in all the evaluation parameters at W2 and W6 when compared to W0 (p < 0.05). Comparison of the groups with each other revealed significantly better results for VAS, BCTSQ, mSNCV, SF-12 in Group 1 than in Group 2 at W2 (p < 0.05). There was also a statistically significant difference in favor of Group 1 for VAS, BCTSQ, FGS and MCS at W6 when compared to W0 (p < 0.05). The results of our study demonstrated that in patients with CTS; peloid + splint treatment was more effective than splint treatment alone in pain, functionality and life quality both at after treatment (W2) and one month after treatment (W6). We may suggest peloid as a supplementary therapeutic agent in CTS.

Are extramedian symptoms associated with peripheral causes in patient with carpal tunnel syndrome? Electrodiagnostic and ultrasonographic study

ObjectiveTo evaluate the relationship between extramedian spreading of sensorial symptoms and median and ulnar nerve cross-sectional area (CSA) and to compare the ultrasonographic and electrophysiological findings in patients with carpal tunnel syndrome (CTS) with or without extramedian sensory symptoms. DesignCross-sectional study. Materials and methodsPatients with CTS were divided into two groups as with or without extramedian symptoms and were assessed clinically, electrophysiologically and ultrasonographically by three blind investigators. In electrophysiological tests, median and ulnar nerve conduction studies were performed. Nerve cross-sectional areas were measured at hook of hamate, psiform bone, radio-ulnar joint, one-third distal part of forearm, and medial epicondyle by ultrasonography. FindingsThe study was completed with 61 patients (108 hands). Extramedian symptoms were present in 31 patients (54 hands). Finger grip strength was lower, pain values evaluated with visual analogue scale were higher in patients with extramedian symptoms (p<0.05). There was no statistically significant difference in electrophysiological and ultrasonographic parameters. ConclusionAccording to our results, extramedian symptoms are not related to nerve conduction studies or nerve ultrasonography, these symptoms may be explained with central sensitization in patient with CTS.

Effectiveness of PELOID therapy in carpal tunnel syndrome: A randomized controlled single blind study.

Carpal tunnel syndrome(CTS) is the most common neuromuscular cause of upper extremity disability. We aimed to investigate the effectiveness of peloid therapy in patients with CTS. This randomized, controlled, single-blind study enrolled 70 patients between the ages of 30 to 65 who had a diagnosis of either mild, mild-to-moderate, or moderate CTS. The patients were randomized into two groups using random number table. In the first group, (Group 1)(n=35), patients were given splint (every night for 6weeks)+peloid treatment(five consecutive days a week for 2weeks) and in the second group, (Group 2)(n=28), patients received splint treatment(every night for 6weeks) alone. The patients were assessed by using visual analog scale(VAS) for pain, electroneuromyography(ENMG), the Boston Carpal Tunnel Syndrome Questionnaire(BCTSQ), hand grip strength(HGS), finger grip strength(FGS), and Short Form-12(SF-12). The data were obtained before treatment(W0), immediately after treatment(W2), and one month after treatment(W6). Both in Group 1 and 2, there was a statistically significant improvement in all the evaluation parameters at W2 and W6 when compared to W0(p<0.05). Comparison of the groups with each other revealed significantly better results for VAS, BCTSQ, mSNCV, SF-12 in Group 1 than in Group 2 at W2(p<0.05). There was also a statistically significant difference in favor of Group 1 for VAS, BCTSQ, FGS and MCS at W6 when compared to W0 (p<0.05). The results of our study demonstrated that in patients with CTS; peloid+splint treatment was more effective than splint treatment alone in pain, functionality and life quality both at after treatment(W2) and one month after treatment (W6). We may suggest peloid as a supplementary therapeutic agent in CTS.

Studying hand grip strength development among students who have taken tennis and massage courses

In this study, the finger and hand force developments of the students who have taken selective/applied Tennis and Massage courses at the University have been examined. From the students of the Department of Physical Education and Sport, 19 healthy females and 73 healthy males (age = 21.25 ± 1.55 years (average ± SD) who have taken selective Tennis courses;51 healthy males (age = 22.00 ± 1.04 years (average ± SD) who have taken Massage courses; and as the control group,16 healthy womenand50 healthy males(age = 21.72 ± 1.47 years (average ± SD) have been participated to the study. The age, length, body weight, grip strength of both hands as well as the finger grip strength of the subjects have been recorded. The course schedule has been set as once a week four hours practice for both tennis and massage. Two weeks of the education and training program that takes twelve weeks in total were assigned for theoretical classes. The remaining period of ten weeks was for practice classes and the measurements were performed before and after this ten weeks period. The hand grip strength measurement has been carried out with a Takkei branded hand dynamometer whereas for the measurement of the finger grip strength, a Baseline branded pinch meter has been used. For both the pre-test and final test of the finger grip and hand grip strength measurements, the paired sample t test has been used in terms of in-group comparisons, whereas for the inter-group comparisons, one-way ANOVA has been used. For the significant F values, post hoc Tukey test has been used. The right hand and the left hand grip values of both test groups as well as the values of the control group have been significantly increased between the pre-test and final test. Particularly, preferring the exercises that improve the hand and finger grip strengths would enable a better racket handle grip as well as an improved shot efficiency for tennis. This would also enable masseurs/masseuses to apply an efficient massage therapy with higher pressure.

Development of Device and Serious Game Contents for the Multi-finger Rehabilitation

In modern society, with the increasing use of such compact devices as smart phones and computers, finger and hand mobility is very important for daily living. Generally, in the case where there is impaired motor function of the hands or fingers, rehabilitation involves boring repetitive exercises. In this study, serious games were implemented using a dynamometer which made it possible to measure grip width and finger grip strength according to the size of the hand. The game was developed based on rhythm games, and, by selectively training the fingers that need rehabilitation, it is possible to improve a variety of functions such as finger agility, power and endurance. In addition, by analyzing data changes during the training process, the intensity of the rehabilitation can be quantitatively assessed. Furthermore, it provided users with an active and fun rehabilitation environment because they could choose and use their own desired music files during their rehabilitation.

The Analysis of Certain Differences in Motor Skills of Sedentary Male Children in the 9-14 Age Group Based on the Biological Maturity

The aim of this study consists of the analysis of certain differences in motor skills of male children who are sedentary and in the age group of 9-14, in relation to the biological maturity. 522 sedentary male children from various parts of Turkey participated in this study. Body height and body weight measurements were taken from the participants in order to determine their body mass indexes while finger grip strength, hand grip strength, standing long jump test, med ball throwing test, flexibility test (sit-reach), active jump test, anaerobic power test, 20 meter sprint, pro-agility test and 20 meter shuttle run tests were applied in order to determine certain motor skill levels of the participants. The motor skill levels of the participants were noticed to show significant differences generally based on the age groups (p<0.05). The biological maturity levels of the participants were determined to be a factor which significantly affected the performances of the participants in aerobic durability, right and left hand grip strength, right and left finger grip strength, flexibility, med ball throwing, standing long jump and sargent jump (p<0.05). On the other hand, the findings regarding the speed performances were observed to show conflicting results, therefore biological maturity was found not to be a determinant over the 20 meter speed performance. As a result, certain motor skill differences in relation with biological maturity were observed in the sedentary male students of the 9-14 age group. Therefore, it can be stated that in order to reach reliable results, considering the biological maturity levels of the students along with the obtained test scores in sports skills qualification tests can be beneficial.