Shoulder Extensors Research Articles

Comparison of Intensive Physical Therapy and Electrical Stimulation to Reduce Spasticity in Stroke

Background: Stroke is a leading cause of disability worldwide, often resulting in spasticity that significantly impairs the functional recovery of individuals. The comparative efficacy of intensive physical therapy and electrical stimulation in mitigating post-stroke spasticity remains a critical area of research. Understanding the impacts of these treatments can guide clinicians in optimizing rehabilitation strategies for stroke survivors. Objective: The study aimed to compare the effectiveness of intensive physical therapy and electrical stimulation in reducing spasticity among stroke patients, with an emphasis on how these interventions influence muscle tone and functional outcomes. Methods: This quasi-experimental trial was conducted at Nishtar Hospital, Multan, over six months, involving 30 participants aged 50-65 years who had experienced a stroke. Participants were randomly assigned to receive either intensive physical therapy or electrical stimulation. Baseline and post-treatment assessments of spasticity were conducted using the Modified Ashworth Scale (MAS). Data were analyzed using SPSS version 25, focusing on changes in MAS scores before and after the interventions. Results: Both interventions showed significant improvements in spasticity levels. The intensive physical therapy group exhibited notable reductions in MAS scores across various joints: shoulder flexors (from 3.13 ± 0.51 to 1.20 ± 0.41), shoulder extensors (from 3.00 ± 0.65 to 1.20 ± 0.67), and hip abduction (from 3.00 ± 0.65 to 1.33 ± 0.72). The electrical stimulation group also demonstrated significant improvements, with MAS scores in wrist flexion (from 2.73 ± 0.70 to 1.33 ± 0.61) and hip extension (from 2.80 ± 0.67 to 1.26 ± 0.45) showing notable reductions. However, no statistically significant differences were observed between the two groups in terms of overall effectiveness in reducing spasticity (p > 0.05). Conclusion: Both intensive physical therapy and electrical stimulation are effective in reducing post-stroke spasticity, with no significant difference in their overall efficacy. This suggests that either treatment can be considered as part of a comprehensive rehabilitation strategy for stroke survivors, depending on individual patient needs, preferences, and specific functional goals.

Optimal initial position and technique for the front foot contact phase of cricket fast bowling: Commonalities between individual-specific simulations of elite bowlers

Group-based and individual-based studies in cricket fast bowling have identified common technique characteristics associated with ball release speed. The applicability of these findings to individual bowlers is often questioned, however, due to research approach limitations. This study aims to identify whether the optimal initial body position at front foot contact and subsequent technique to maximise ball release speed exhibit common characteristics for elite male cricket fast bowlers using individual-specific computer optimisations. A planar 16-segment whole-body torque-driven simulation model of the front foot contact phase of fast bowling was customised, evaluated, and the initial body position and subsequent movement pattern optimised, for ten elite male fast bowlers. The optimised techniques significantly increased ball release speed by 4.8 ± 1.3 ms−1 (13.5 ± 4.1%) and ranged between 37.8 and 42.9 ms−1, and in lower peak ground reaction forces and loading rates. Common characteristics were observed within the optimal initial body position with more extended front knees, as well as more flexion of the front and bowling arm shoulders than in current performances. Delays to the onset of trunk flexion, front arm and bowling arm shoulder extension, and wrist flexion were also common in the subsequent movement during the front foot contact phase. Lower front hip extensor and front shoulder flexor torques, as well as greater bowling shoulder extensor torques were also evident. This is useful knowledge for coach development, talent identification, and coaching practice.

The Comparison of Physical Fitness Factors between Korea Water Polo National-team and Reserve-team Athletes

PURPOSE: The purpose of the study was to evaluate isokinetic muscle strength (IMS), anaerobic power, basic physical fitness, and body composition of Korean water polo athletes in the national team (NT) and reserve team (RT).METHODS: Twenty-nine male water polo athletes (aged 22.2±1.9 years) including 14 NT and 15 RT athletes participated in this study. The participants were evaluated for physiological parameters such as body composition, physical fitness, IMS, and anaerobic power. The IMS of the knees and shoulders (60°/s, 180°/s, and 240°/s, indicating maximal muscle strength, muscle power, and muscle endurance, respectively) and trunk (30°/s and 120°/s) were measured using a dynamometer (NORM, CSMI, USA). Anaerobic parameters were also measured using the 30-s maximal ergometer cycling Wingate test (Monark, Sweden).RESULTS: No significant differences in the IMS of the knee were found between two groups. Although the IMSs of shoulder flexion at 180º/s and 60°/s were not significantly different between the two groups, the IMSs of shoulder extension at 180º/sec and 60°/s in NT athletes were higher than those in RT athletes (<i>p</i><.05, <i>p</i><.01). There were no significant differences between the NT and RT (NS) groups in the left and right knee flexion/extension ratios (H/Q ratio, 60º/sec, 180º/sec). However, a significant difference was found in the right shoulder extension/flexion ratio (E/F ratio) between the two groups. Although height, muscle mass, fat mass, and Wingate anaerobic power were not significantly different between the two groups, the FEV1 and FVC of NT athletes were higher than those of RT athletes, respectively (<i>p</i><.05, <i>p</i><.01).CONCLUSIONS: These results suggest the athletic characteristics of water polo players who pass and shoot and make swimming movements. The difference in the shoulder extensor muscle strength was one of the determining factors for the performance of water polo athletes.

Effects of Whey Protein Supplement on 4-Week Resistance Exercise-Induced Improvements in Muscle Mass and Isokinetic Muscular Function under Dietary Control

(1) The purpose of this study was to investigate the effect of whey protein supplementation under dietary control on improvements in muscle mass and function following resistance exercise training. (2) Thirty-two men were randomly assigned to a whey protein supplementation group taking whey protein isolate (PSG, n = 17) and a placebo group (CON, n = 15). Participants were provided with three meals per day corresponding to the estimated individual daily energy intake. The supervised resistance exercise program was conducted 60 min per day, six days per week, for four weeks. (3) Post-intervention, there was a significant interaction between groups in terms of muscle mass increase (p = 0.033, η2 = 0.14), with a greater increase in the PSG. There were also significant interactions between the groups and increases in peak torque of the dominant knee flexors (p = 0.048, η2 = 0.12), dominant shoulder extensors, and non-dominant shoulder extensors (p = 0.028, η2 = 0.15; p = 0.015, η2 = 0.18), and the total work of the dominant knee and shoulder extensors (p = 0.012, η2 = 0.19; p = 0.013, η2 = 0.19), with greater increases in the PSG. (4) These results suggest that whey protein supplementation enhances resistance exercise-induced increase in muscle mass and overall muscular strength and endurance, independent of dietary influence.

A relação entre classificação funcional, força muscular de membros superiores e agilidade de atletas do rúgbi em cadeira de rodas

ABSTRACT This study aimed to compare the strength and agility of wheelchair rugby (WR) athletes with different functional classifications (FC) and describe the relationship between agility and upper extremity isometric muscle strength (IMS). A total of 10 WR athletes were analyzed, divided into two groups: Group 1 (G1): FC 0.5 and 1.0; and Group 2(G2): FC 1.5 to 2.5. IMS was evaluated by a dynamometer, and agility by a zig-zag test. Spearman’s correlation was used to describe the relationship between IMS and performance on the agility test. In contrast, the t-test was used to compare strength and agility between different FCs (p≤0.05). Shoulder extensor IMS was higher in G2 athletes (p=0.001; d=3.10), which were also more agile than G1 athletes (G1=23.66s>G2=17.55s; p=0.015; d=2.00). Both groups showed a correlation between bilateral shoulder extensor strength and agility (r=−0.721; p=0.019). Athletes with high FC scores are more agile than athletes with low scores and, therefore, have greater movement speed when performing WR tasks. Greater shoulder extensor muscle strength is associated with greater agility in WR athletes.

RESEARCH ON THE APPLICATION OF SPORTS BIOMECHANICS IN IMPROVING ATHLETES’ PHYSICAL FITNESS IN TRACK AND FIELD PHYSICAL EDUCATION COURSES

Object: In this paper, eight male basketball players were tested for physical fitness using the method of sports biology. The content of the physical examination is the isokinetic muscle strength of the shoulder joint. This paper aims to investigate the effect of shoulder isokinetic muscle strength on athletic performance. Methods: This paper uses the principles of sports biology and the isokinetic muscle strength test system to measure the shoulder torque and fatigue index of eight basketball players. At the same time, this paper analyzes the obtained data using the method of mathematical statistics. Results: There were significant differences in the test data of eight male basketball players (P < 0.05). The fatigue of basketball players is mainly in the middle and late stages of sports. At average speed, the fatigue index of the shoulder is the lowest at 180°/s. Conclusion: Basketball players have stronger shoulder extensors than flexors. The balance of strength in the shoulder flexors is greater than the balance in the extensors.

Inclusive physical education program of schoolchildren with autism spectrum disorders

Purpose: The purpose was to develop an inclusive physical education program for schoolchildren with ASD and experimentally test its effectiveness.
 Materials and methods: An inclusive physical education curriculum for children with ASD was made up and incorporated into the process of physical education in secondary schools. At the beginning and the end of the pedagogical experiment, 12-year-old children were tested in the experimental (involved in the author's program, n=9) and control groups (involved in the traditional curriculum, n=11). The indicators of psychophysical fitness of children were determined according to the results of 19 test exercises. The reliability of the differences was determined by the Mann-Whitney U test. 
 Results: Under the influence of the author's program, physical fitness of children of the experimental group improved significantly. Whereas the trend towards improving almost all indicators of the physical fitness of children with ASD in the traditional program has not been confirmed statistically. The traditional physical education program was most effective in promoting flexibility (inclinations forward) and coordination (passing and catching a ball against a wall) in children with ASD.
 Conclusions: The author's program was proven to be significantly more effective than the traditional ones in the formation of the strength of shoulder extensors and hand flexors, fine coordination of hand muscles, the speed-strength of leg muscles, and balance. This allows us to recommend it for use in physical education lessons in institutions of general secondary education.

Isokinetic Assessment of Shoulder Joint Strength Ratios in Male Recreational Weightlifters: A Cross-Sectional Study.

Background Isokinetic strength imbalance is a risk factor for movement dysfunctions and injuries related to shoulder complex. The effects of recreational weightlifting on developing the imbalances between the shoulder muscles are not yet known. Objectives To investigate the isokinetic concentric shoulder muscle strength values (peak torque normalized to body weight) in recreational weightlifters (RWL) and to compare the shoulder muscles agonist/antagonist ratios with nonweightlifters. Methods Thirty male RWL with mean age, weight, height, and body mass index (BMI) of 21.56 years, 84.25 kg, 175.34 cm, and 26.51 kg/m2, respectively, matched with nonweightlifters served as a control group. The normalized concentric peak torque values of shoulder flexors, extensors, abductors, adductors, and internal and external rotators were measured at angular velocity 120°/sec by using Biodex isokinetic system. Moreover, the agonist/antagonist strength ratio for all muscle groups were calculated. Results The normalized peak torques of RWL group were significantly greater than the control group (p < 0.05). The abductor/adductor and external rotator/internal rotator ratios of the RWL were significantly lower than the control group (p = 0.008 and 0.009, respectively). Conversely, there was no significant difference between both groups in relation to the flexor/extensor ratio (p = 0.259). Conclusion These results suggested that the recreational weightlifting exercises place trainees at risk of muscle imbalances. Therefore, the restoration of a normal concentric abductor/adductor and external rotator/internal rotator strength ratios may decrease the risk of possible shoulder injury.

Upper limb isokinetic muscle strength predicts the performance in cross-country sit-skiing

The double poling (DP) technique in cross-country sit-skiing is primarily considered as an upper-body exercise. The upper limb muscle strength and motion economy are important factors accounting for DP performance in cross-country sit-skiing. The present study investigates how upper limb muscle strength predicts DP performance in cross-country sit-skiing. A total of 19 female non-disabled college students (age 23.2 ± 0.8 years, BMI 20.4 ± 2.2) performed 30-s and 3-min DP performance tests using a sit-skiing ergometer. Isokinetic muscle strength of the shoulder and elbow extensor were measured at the angular velocity of 30°/s, 60°/s, and 120°/s with an ISOMED2000 isokinetic system. A medium correlation was found between DP output power and isokinetic upper limb muscle strength (shoulder strength at all speeds, r = 0.39–0.74, p ≤ 0.1). Multiple regression analyses which were employed to predict power production in the 30-s and 3-min tests showed that shoulder extension strength at 60°/s accounted for 34% of the variation in the 30-s test, and 40% of the variance in the 3-min test. Muscle strength and biomechanical analysis of DP process indicated that upper limb extensor muscle strength and muscle coordination were important factors for the power output generation in sit-skiing DP. These results may use to guide special physical fitness training for paralympic cross-country sit-skiing.

Methodological considerations for assessing whole-body strength capacity through isometric dynamometry

ABSTRACT The present study aimed to explore the possibility of comprehensively assessing whole-body muscle strength by testing as few muscle groups as possible, using a single testing method (isometric or isokinetic dynamometry) and a single variable (maximal force or rate of force development). Knee, hip, shoulder and elbow extensors and flexors were evaluated in males with high (n = 26) and low strength levels (n = 32). The principal component analysis revealed three factors that explained 62.5% of the total variance, while the main factors were loaded by the different testing methods and strength variables for the muscles acting on the knee (first component), hip (second component) and arm joints (third component). These results were confirmed by a three-way ANOVA which revealed a significant factor of group (P < 0.001) and the interaction test type × group (P = 0.002), but not of test type (P = 0.644), muscle group (P = 0.999), or their interactions (P > 0.205). The correlations of strength outcomes across the muscles ranged from trivial to very large (r range = −0.17, 0.84), being generally higher for the antagonistic muscles. Overall, a comprehensive assessment of whole-body muscle strength can be obtained using isometric dynamometry and maximal force, but it should consider at least one muscle group from the antagonistic pair.

A study of shoulder extensor muscles and vibration conditions suitable for generating the illusion of shoulder joint flexion using vibration stimulation

A study of shoulder extensor muscles and vibration conditions suitable for generating the illusion of shoulder joint flexion using vibration stimulation

The influence of testing positions and resistance locations on muscle activities during shoulder internal rotation strength measurements in young healthy adults

BackgroundAlthough some tests of shoulder internal rotator strength including subscapularis are commonly used in clinical practice, the differences in shoulder muscle activities other than subscapularis muscle among those tests are not well understood. The purpose of this study was to examine the activities of the superficial shoulder muscles in addition to internal rotation strength during two belly-press and three lift-off test positions. MethodsThirteen healthy young adult men (age 29.5 ± 5.4 years) were recruited for the present study. They performed isometric shoulder internal rotation against manual resistance during the belly-press test positions with two different resistance locations and the lift-off test with three different arm positions. The surface electromyographic activities of the superficial shoulder muscles, including the deltoid (anterior, middle, posterior), pectoralis major, long head of triceps and latissimus dorsi muscle, were collected and compared between the two belly-press tests, and among the three lift-off test positions (P < 0.05). ResultsThe belly-press test position with resistance to elbow showed significantly greater activities of the anterior and middle deltoid muscle than the original belly-press test; but showed significantly smaller activities of pectoralis major, triceps and latissimus dorsi muscle than the original belly-press test. Among the three lift-off tests, all muscle activities, except for the pectoralis major, were greater in the lift-off at L4/5 than in the lift-off at buttock and thigh. Lift-off at thigh showed significantly smaller activity of pectoralis major than the lift-off at L4/5 and buttock. ConclusionsThe findings of the present study suggest that clinician should give attention to compensatory motions by excessive shoulder extensor and adductor muscle activities for the original belly press test, by excessive deltoid muscle activities for the modified belly-press, and by excessive shoulder extensor muscle activities for the lift off test in the inferior arm positions.

The effect of integrative rehabilitation treatment on upper extremity ability of patients with central nervous system injury

Purpose: The aim of this study was to test and develop a rehabilitation treatment protocol that maximizes the improvement of upper limb. In addition, this study was conducted to present a basic protocol for an integrative rehabilitation treatment method. Methods: Patients diagnosed with stroke and exhibiting movement disorders in paralyzed limbs were randomly assigned to an experimental group and a control group. The experimental group received proprioceptive neuromuscular facilitation, extracorporeal shock wave therapy, and taping therapy. The control group received general exercise therapy and functional electrical stimulation. The treatment program for each group was conducted two times a week for four weeks, and exercise was performed for 60 minutes per session. Results: There were statistically significant differences in the grip power with muscular strength of the shoulder joint flexor, extensor, adductor and abductor muscles before and after treatment in the experimental group and control group. Conclusion: In conclusion, in order to improve upper extremity ability, a treatment method that can be applied at the same time and a method for managing the cause of the patient's limitations must be applied together.

Isokinetic Testing: Sensitivity of the Force-Velocity Relationship Assessed through the Two-Point Method to Discriminate between Muscle Groups and Participants’ Physical Activity Levels

Background: Isokinetic testing has been routinely used to assess the capacities of individual muscle groups. In this study we aimed to evaluate the sensitivity of the force-point (F-v) relationship assessed through the two-point method to discriminate between antagonist muscle groups and males with different physical activity levels. Methods: The concentric force output of the knee, hip, elbow, and shoulder flexors and extensors of 27 active and 13 non-active men was recorded at 60 and 180°/s to determine the F-v relationship parameters (maximum force [F0], maximum velocity [v0], and maximum power [Pmax]). Results: F0 and Pmax were higher for knee extensors (effect size [ES] = 1.97 and 0.57, respectively), hip extensors (ES = 2.52 and 0.77, respectively), and shoulder flexors (ES = 1.67 and 0.83, respectively) compared to their antagonist muscles, while v0 was higher for knee flexors compared to knee extensors (ES = 0.59). Active males revealed higher F0 for knee extensors (ES = 0.72) and knee flexors (ES = 0.83) and higher Pmax for knee flexors (ES = 0.70), elbow extensors (ES = 0.83) and shoulder extensors (ES = 0.36). Conclusions: The sensitivity of the two-point method for testing the maximal mechanical capacities was high for the knee, moderate for the hip and shoulder, and low for the elbow joint.

Construct validity of gymnastics-specific assessment on the neuromuscular function of shoulder flexor and extensor muscles

ABSTRACT The present study examined the construct validity of gymnastics-specific measurements of the shoulder flexor and extensor neuromuscular function. Fifteen male gymnasts and 18 male physical education (PE) students participated voluntarily. The electromyogram (EMG) of 3 flexor and 3 extensor shoulder muscles was assessed during isometric (45, 90, and 135º) and isokinetic (concentric and eccentric 60, 180, and 300º/s) shoulder flexion/extension. Peak torque (PT) and neuromuscular function in terms of neuromuscular efficiency (NME, i.e. torque to EMG ratio) and antagonist/agonist coactivation index were evaluated. The construct validity of the measurements was supported by the ability to discriminate between gymnasts and physical education (PE) students, taking into consideration the shoulders’ neuromuscular function parameters (37%-57% of the variability explained). After accounting for the limitations of the study, these findings may assist gymnastics coaches and researchers to develop and evaluate more effective training methods for athletes related to shoulder joint physiological characteristics and level of expertise.

Learning New Feedforward Motor Commands Based on Feedback Responses.

Learning a new motor task modifies feedforward (i.e., voluntary) motor commands and such learning also changes the sensitivity of feedback responses (i.e., reflexes) to mechanical perturbations [1-9]. For example, after people learn to generate straight reaching movements in the presence of an external force field or learn to reduce shoulder muscle activity when generating pure elbow movements with shoulder fixation, evoked stretch reflex responses to mechanical perturbations reflect the learning expressed during self-initiated reaching. Such a transfer from feedforward motor commands to feedback responses is thought to take place because of shared neural circuits at the level of the spinal cord, brainstem, and cerebral cortex [10-13]. The presence of shared neural resources also predicts the transfer from feedback responses to feedforward motor commands. Little is known about such a transfer presumably because it is relatively hard to elicit learning in reflexes without engaging associated voluntary responses following mechanical perturbations. Here, we demonstrate such transfer by leveraging two approaches to elicit stretch reflexes while minimizing engagement of voluntary motor responses in the learning process: applying very short mechanical perturbations [14-19] and instructing participants to not respond to them [20-26]. Taken together, our work shows that transfer between feedforward and feedback control is bidirectional, furthering the notion that these processes share common neural circuits that underlie motor learning and transfer.

Generalizing movement patterns following shoulder fixation.

Generalizing newly learned movement patterns beyond the training context is challenging for most motor learning situations. Here we tested whether learning of a new physical property of the arm during self-initiated reaching generalizes to new arm configurations. Human participants performed a single-joint elbow reaching task and/or countered mechanical perturbations that created pure elbow motion with the shoulder joint free to rotate or locked by the manipulandum. With the shoulder free, we found activation of shoulder extensor muscles for pure elbow extension trials, appropriate for countering torques that arise at the shoulder due to forearm rotation. After locking the shoulder joint, we found a partial reduction in shoulder muscle activity, appropriate because locking the shoulder joint cancels the torques that arise at the shoulder due to forearm rotation. In our first three experiments, we tested whether and to what extent this partial reduction in shoulder muscle activity generalizes when reaching in different situations: 1) different initial shoulder orientation, 2) different initial elbow orientation, and 3) different reach distance/speed. We found generalization for the different shoulder orientation and reach distance/speed as measured by a reliable reduction in shoulder activity in these situations but no generalization for the different elbow orientation. In our fourth experiment, we found that generalization is also transferred to feedback control by applying mechanical perturbations and observing reflex responses in a distinct shoulder orientation. These results indicate that partial learning of new intersegmental dynamics is not sufficient for modifying a general internal model of arm dynamics.NEW & NOTEWORTHY Here we show that partially learning to reduce shoulder muscle activity following shoulder fixation generalizes to other movement conditions, but it does not generalize globally. These findings suggest that the partial learning of new intersegmental dynamics is not sufficient for modifying a general internal model of the arm's dynamics.

Spinal Circuits Mediate a Stretch Reflex Between the Upper Limbs in Humans

Inter-limb reflexes play an important role in coordinating behaviors involving different limbs. Previous studies have demonstrated that human elbow muscles express an inter-limb stretch reflex at long-latency (50–100 ms), a timing consistent with a trans-cortical linkage. Here we probe for inter-limb stretch reflexes in the shoulder muscles of human participants. Unexpected torque pulses displaced one or both shoulders while participants adopted a steady posture against background torques. The results demonstrated inter-limb stretch reflexes occurring at short-latency for both shoulder extensors and flexors; the rapid timing (36–50 ms) must involve a spinal linkage for the two arms. Inter-limb stretch reflexes were also observed at long-latency yet they were opposite to the preceding short-latency; when the short-latency stretch reflex was excitatory then the long-latency stretch reflex was inhibitory and vice versa. Comparing the responses to contralateral arm displacement to those during simultaneous displacement of both arms revealed that inhibitory inter-limb stretch reflexes are independent of within-limb stretch reflexes, but that excitatory inter-limb stretch reflexes are suppressed by within-limb stretch reflexes. Our results provide the first demonstration of short-latency inter-limb stretch reflexes in the upper limb of humans and reveal interacting spinal circuits for within-limb and inter-limb stretch reflexes.

EFFECTIVENESS OF HOME EXERCISE PROGRAM WITH MODIFIED ROOD’S APPROACH ON MUSCLE STRENGTH IN POST CEREBRAL HAEMORRHAGIC INDIVIDUALS OF ASSAM: A RANDOMIZED TRIAL

Background: Physical therapists are integral to the rehabilitation of patients of stroke, and home exercise program (HEP) prescription is a routine part of physical therapy care. Strength training is imperative in interventions for stroke patients. Various components of Rood’s Approach are effective in stroke rehabilitation, an aspect that has not been thoroughly explored as yet. Methods: A randomized controlled trial study was done at Gauhati Medical College &amp; Hospital, Assam. The subjects were 236 hemorrhagic stroke patients who were randomly assigned into two groups. Both the groups were given a HEP consisting of routine physiotherapy exercises. Additionally, one group out of the two was also taught exercises based on the Rood’s approach, consisting of facilitation and inhibition techniques with the help of sensory stimulation and repetitive task-specific activity. The output was evaluated in terms of muscle strength using Manual Muscle Testing (MMT) after three months of intervention. Results: It was observed that HEP with Rood’s approach significantly improved (p&lt;0.05) the muscle strength in shoulder flexors (p=0.038), shoulder extensors (p=0.003), shoulder abductors (p=0.033), shoulder adductors (p=0.018), elbow flexors (p=0.009), wrist flexors (p=0.044), finger flexors (p=0.011), hip flexors (p=0.007), hip extensors (p=0.015), hip adductors (p=0.00), knee flexors (p=0.00), ankle plantar flexors (p=0.00) and dorsi flexors (p=0.039). However, no improvements were observed for elbow extensors, wrist extensors, finger extensors, hip abductors and knee extensors. Conclusion:&nbsp; Although it was observed that both the Groups improving their muscle strength, but HEP with Rood’s approach was found to be more effective in improving muscle strength.

Investigation of the effects of mirror therapy on the spasticity, motor function and functionality of impaired upper limbs in chronic stroke patients

Background/Aims Strokes lead to different levels of disability. During the chronic stage, hemiparesis, spasticity and motor deficits may cause loss of functional independence. Mirror therapy aims to reduce deficits and increase functional recovery of the impaired upper limb. This study aimed to evaluate the effects of mirror therapy on upper limb spasticity and motor function, as well as its impact on functional independence in chronic hemiparetic patients. Methods In this quasi-experimental study, eight chronic hemiparetic patients (age 55.5 ± 10.8 years) were assessed to determine their degree of spasticity (Modified Ashworth Scale), level of upper limb motor function (Fugl-Meyer Assessment) and functionality (Functional Independence Measure). All participants received 12 sessions of mirror therapy delivered three times per week, over a period of 4 weeks. Participants were re-evaluated post-intervention and these results were compared to their pre-intervention scores to determine the impact of mirror therapy. Results A decrease in spasticity was observed, with significant improvements in shoulder extensors (P=0.033) and a significant increase in motor function (P=0.002). The therapeutic protocol adopted did not have a significant effect on functional independence (P=0.105). Conclusions Mirror therapy led to improvements in upper limb spasticity and motor function in chronic hemiparetic stroke patients. No effects on functional independence were observed. Further research with a larger number of patients is needed to provide more robust evidence of the benefits of mirror therapy in chronic hemiparetic stroke patients.