Muscle Groups Research Articles

Driving Aid for Rotator Cuff Injured Patients using Hand Gesture Recognition

Gesture recognition is a way for computers to understand how humans move and express themselves without using traditional methods like typing or clicking. Instead of relying on text or graphics, gesture recognition focuses on reading body movements, such as those made by the hands or face. Currently, there is a specific interest in recognizing hand gestures by analyzing the veins on the back of the hand. Scientists have found that each person has a unique arrangement of veins beneath the skin of their hand. When the hand moves, the position of these veins changes, and this change is considered a gesture. These gestures are then translated into specific actions or tasks by coding the hand movements. This technology is particularly helpful for individuals with rotator cuff injuries. The rotator cuff is a group of muscles and tendons in the shoulder that can get injured, causing pain and limiting movement. People with these injuries may have difficulty steering a car, especially if their job or sport involves repetitive overhead motions. With gesture recognition technology, a person can control the car by simply moving their wrist, eliminating the need to use the shoulder. In summary, gesture recognition technology reads the unique patterns of hand veins to interpret hand movements, making it a practical solution for individuals with rotator cuff injuries who may struggle with certain tasks, like steering a car.

Pedipalp anatomy of the Australian black rock scorpion, Urodacus manicatus, with implications for functional morphology

Pedipalps – chelate ‘pincers’ as the second pair of prosomal appendages – are a striking feature of scorpions and are employed in varied biological functions. Despite the distinctive morphology and ecological importance of these appendages, their anatomy remains underexplored. To rectify this, we examined the pedipalps of the Australian black rock scorpion, Urodacus manicatus, using a multifaceted approach consisting of microcomputed tomography, scanning electron microscopy, energy dispersive X-ray spectroscopy, and live pinch force measurements. In doing so, we document the following aspects of the pedipalps: (1) the musculature in three dimensions; (2) the cuticular microstructure, focusing on the chelae (tibial and tarsal podomeres); (3) the elemental construction of the chelae teeth; and (4) the chelae pinch force. We recognise 25 muscle groups in U. manicatus pedipalps, substantially more than previously documented in scorpions. The cuticular microstructure – endo-, meso-, and exocuticle – of U. manicatus pedipalps is shown to be similar to other scorpions and that mesocuticle reinforces the chelae for predation and burrowing. Elemental mapping of the chelae teeth highlights enrichment in calcium, chlorine, nickel, phosphorus, potassium, sodium, vanadium, and zinc, with a marked lack of carbon. These elements reinforce the teeth, increasing robustness to better enable prey capture and incapacitation. Finally, the pinch force data demonstrate that U. manicatus can exert high pinch forces (4.1 N), further highlighting the application of chelae in subduing prey, as opposed to holding prey for envenomation. We demonstrate that U. manicatus has an array of adaptions for functioning as a sit-and-wait predator that primarily uses highly reinforced chelae to process prey.

Neurophysiological assessment of the condition of the masticatory muscle group in patients with occlusion disorders and chronic generalized periodontitis

Background. Recently, the interest of dentists and physiologists has been focused on the development of a set of informative computerized techniques for an objective analysis of the functional state of the dentofacial apparatus. Achieving certain successes in conducting functional diagnostic examinations contributes to the development of algorithms for complex treatment of patients with generalized periodontitis and premature occlusal contacts.Goal. Study of the functional state of the dentofacial apparatus according to the parameters of bioelectrical activity of muscles in patients with chronic generalized periodontitis and occlusal disorders in static and dynamic conditions of the lower jaw.Materials and methods. The study involved 37 people with clinically healthy periodontium, physiological occlusion, and absence of occlusal disorders (Group 1) and 45 patients with physiological types of occlusion, generalized chronic periodontitis and premature occlusal contacts (Group 2). Functional methods included electronic registration of occlusal relationships with the T-Scan® III computer occlusion analysis system and study of the bioelectrical activity of the masticatory muscles using the Bio-EMG® III electromyography using standard functional tests.Results. In patients of group 2, in comparison with patients of group 1, neuromuscular discoordination of the functional activity of the masticatory muscles was diagnosed. This condition is confirmed by the asymmetry and lack of muscle synergy when performing the “Maximum volitional compression” test, an improvement in the symmetry of the work of the muscles of the same name on the right and left sides and the synergy of the work of the muscles of the right and left masticatory groups, as well as a statistically significant increase in the values of biopotentials m. temporalis and m. masseter during the “Maximum volitional compression on rollers” test.Conclusions. Disturbances in the coordinated work of the muscles of the craniofacial region in patients with chronic generalized periodontitis and premature occlusal contacts are realized in a statistically significant increase in the biopotentials of the masticatory muscle group at rest, a decrease in biopotentials during functional loading, as well as a reduction in the values of symmetry and synergy in relation to similar values patients of group 1.

Effect of Resistance Training with Gym Machines On Muscle Strength and Body Mass Index in Obese Women Student College

Several countries have high obesity rates. Obesity poses serious health risks that require effective treatment. Too much fat reduces muscle strength, affecting obesity. Resistance training can overcome weight gain and muscle loss. Resistance training with gym machines for obese women is understudied. The effects of gym machine resistance training on muscle strength and BMI can help physical trainers design appropriate exercise programs. This study examines how gym-machine resistance training affects muscle strength and BMI in obese women. One pre- and post-test group included 30 obese 17-25-year-old women. Resistance training uses gym machines to target major muscle groups and lose fat. Prisoners are trained three times a week for ten weeks under supervision. Resistance exercises include lati pulldown, abdominal crunch, cable curl, chest press, and leg press. The one-repetition maximum (1RM) test measures muscle strength, while height and weight calculate BMI. Paired difference test (paired sample t-test) effect was then tested. Ten weeks of resistance training led to significant muscle strength gains across all measures (p < 0.05). Moreover, the resistance training group demonstrated a significant BMI reduction (p < 0.05). These findings suggest that gym-machine resistance training can help obese women lose weight and gain muscle. Resistance training on gym machines can help obese women lose weight and build muscle. This study suggests systematic resistance training can improve muscle fitness and weight control in this population. Long-term health and well-being effects of these therapies can be examined. Keywords: Resistance Training, Obesity, Women, Muscle Strength, BMI.

Synthetic faces generated with the facial action coding system or deep neural networks improve speech-in-noise perception, but not as much as real faces

The prevalence of synthetic talking faces in both commercial and academic environments is increasing as the technology to generate them grows more powerful and available. While it has long been known that seeing the face of the talker improves human perception of speech-in-noise, recent studies have shown that synthetic talking faces generated by deep neural networks (DNNs) are also able to improve human perception of speech-in-noise. However, in previous studies the benefit provided by DNN synthetic faces was only about half that of real human talkers. We sought to determine whether synthetic talking faces generated by an alternative method would provide a greater perceptual benefit. The facial action coding system (FACS) is a comprehensive system for measuring visually discernible facial movements. Because the action units that comprise FACS are linked to specific muscle groups, synthetic talking faces generated by FACS might have greater verisimilitude than DNN synthetic faces which do not reference an explicit model of the facial musculature. We tested the ability of human observers to identity speech-in-noise accompanied by a blank screen; the real face of the talker; and synthetic talking faces generated either by DNN or FACS. We replicated previous findings of a large benefit for seeing the face of a real talker for speech-in-noise perception and a smaller benefit for DNN synthetic faces. FACS faces also improved perception, but only to the same degree as DNN faces. Analysis at the phoneme level showed that the performance of DNN and FACS faces was particularly poor for phonemes that involve interactions between the teeth and lips, such as /f/, /v/, and /th/. Inspection of single video frames revealed that the characteristic visual features for these phonemes were weak or absent in synthetic faces. Modeling the real vs. synthetic difference showed that increasing the realism of a few phonemes could substantially increase the overall perceptual benefit of synthetic faces.

Inverting a model of neuro-muscular control to estimate descending activation patterns that generate fast reaching movements.

Reaching movements generally show smooth kinematic profiles that are invariant across varying movement speeds even as interaction torques and muscle properties vary non-linearly with speed. How the brain brings about these invariant profiles is an open question.We develop an analytical inverse dynamics method to estimate descending activation patterns directly from observed joint angle trajectories based on a simple model of the stretch reflex, and of muscle and biomechanical dynamics. We estimate descending activation patterns for experimental data from eight different planar two-joint movements performed at two movement times (fast: 400 msec; slow: 800 msec). The temporal structure of descending activation differed qualitatively across speeds, consistent with the idea that the nervous system uses an internal model to generate anticipatory torques during fast movement. This temporal structure also depended on the co-contraction level of antagonistic muscle groups. Comparing estimated muscle activation and descending activation revealed the contribution of the stretch reflex to movement generation that was found to set in after about 20 percent of movement time.

Exercise Responses During Outdoor Versus Virtual Reality Indoor Arm+FES-Leg Cycling in Individuals with Spinal Cord Injury.

Background: Virtual reality (VR)-enhanced indoor hybrid cycling in people with spinal cord injury (SCI) can be comparable to outdoor hybrid cycling. Method: Eight individuals with chronic thoracic-lesion SCI performed voluntary arm and electrically assisted leg cycling on a hybrid recumbent tricycle. Exercises were conducted outdoors and indoors incorporating VR technology in which the outdoor environment was simulated on a large flat screen monitor. Electrical stimulation was applied bilaterally to the leg muscle groups. Oxygen uptake (VO2), heart rate, energy expenditures, and Ratings of Perceived Exertion were measured over a 30-minute outdoor test course that was also VR-simulated indoors. Immediately after each exercise, participants completed questionnaires to document their perceptual-psychological responses. Results: Mean 30-minute VO2 was higher for indoor VR exercise (average VO2-indoor VR-exercise: 1316 ± mL/min vs. outdoor cycling: 1255 ± 53 mL/min; highest VO2-indoor VR-exercise: 1615 ± 67 mL/min vs. outdoor cycling: 1725 ± 67 mL/min). Arm and leg activity counts were significantly higher during indoor VR-assisted hybrid functional electrical stimulation (FES) cycling than outdoors; 42% greater for the arms and 23% higher for the legs (P < 0.05). Similar responses were reported for exercise effort and perceptual-psychological outcomes during both modes. Conclusion: This study proposes that combining FES and VR technology provides new opportunities for physical activity promotion or exercise rehabilitation in the SCI population, since these modes have similar "dose-potency" and self-perceived effort. Human Research Ethics Committee of the University of Sydney Ref. No. 01-2010/12385.

Highly stretchable and customizable microneedle electrode arrays for intramuscular electromyography.

Stretchable three-dimensional (3D) penetrating microelectrode arrays have potential utility in various fields, including neuroscience, tissue engineering, and wearable bioelectronics. These 3D microelectrode arrays can penetrate and conform to dynamically deforming tissues, thereby facilitating targeted sensing and stimulation of interior regions in a minimally invasive manner. However, fabricating custom stretchable 3D microelectrode arrays presents material integration and patterning challenges. In this study, we present the design, fabrication, and applications of stretchable microneedle electrode arrays (SMNEAs) for sensing local intramuscular electromyography signals ex vivo. We use a unique hybrid fabrication scheme based on laser micromachining, microfabrication, and transfer printing to enable scalable fabrication of individually addressable SMNEA with high device stretchability (60 to 90%). The electrode geometries and recording regions, impedance, array layout, and length distribution are highly customizable. We demonstrate the use of SMNEAs as bioelectronic interfaces in recording intramuscular electromyography from various muscle groups in the buccal mass of Aplysia.

Differences in knee flexor and extensor force and kinematic variables in rural versus urban area female students in Romania

The study aimed to identify and explain the typical differences in low-intensity high-volume resistance training (LIHV-RT) performances for major muscle groups between rural versus urban young female students to establish the relevant set of quantitative and qualitative resistance training parameters. The study sample included 46 recreational active female students at the Transilvania University of Brașov, (mean ± SD age, 20 ± 1 year; body mass, 60 ± 3 kg; height, 160 ± 4 cm) grouped urban vs. rural. The study used modified resistance exercise machines for the hamstring- and quadricep-group muscles, equipped with a dynamometer and sensors for identifying developed forces and accelerations. A number of 368 tests were performed, representing two attempts for each subject, for knee flexion and knee extension exercises, with two different loads. For the performance analysis some variables were considered: the maximum number of repetition until failure, maximum force developed, maximum acceleration, the duration of the set and the mean time per repetition. The maximum number of repetition to failure shows a significant higher value for rural than urban in case of knee flexion (d = 0.98 [0.32, 1.54] for load 1(L1) and d = 0.65 [0.03, 1.21] for load 2(L2)) and in case of knee extension (d = 1.89 [1.11, 2.48] for L1 and d = 1.67 [0.92, 2.25] for L2). The total duration of the sets shows a significant higher value for rural than urban in case of knee flexion (d = 0.84 [0.19, 1.39] for L2) and in case of knee extension (d = 1.46 [0.74, 2.03] for L1 and d = 1.56 [0.98, 2.14] for L2). Additionally we found differences in the quality of the relevant repetitions execution and in the impulse developed during the LIHV- MNRF sets. The study’s main finding was that there are differences in LIHV-RT performances knee flexion and knee extension antagonistic exercises, between rural and urban female students. We concluded that the obtained results allow teachers to understand the optimal design of RT programs for the different groups of participants, in order to adapt their teaching techniques so that their final objectives are achieved, insisting on particular aspects of the theoretical or practical contents.

Inverstigation of the Effects of Aerobic Exercise on Lipid Metabolism

Although the fact that technology is at the fingertips of almost every person in the daily life process provides the opportunity to handle all tasks easily, it has also opened the door to the problem of restricting physical movements. Many health problems may occur due to physical inactivity, especially with advancing age. A few of these are obesity and cardiovascular system disorders that develop due to excess fat and weight gain. At this point, exercise is the most effective element in reducing these diseases. Exercise applied regularly can benefit the heart by positively affecting lipid and lipoprotein Levels. It is known that exercise reduces total cholesterol, serum triglyceride and low-density Lipoprotein (LDL) cholesterol and increases high-density lipoprotein (HDL) cholesterol. In particular, aerobic exercise not only changes lipoprotein concentrations quantitatively, but also causes positive changes in lipoprotein subgroups (Öğe, 2019; Assunçãovd.,2017). So that; The importance of regular physical activity and exercise for healthy aging and its preventive effects on chronic diseases are inevitable (Costa et al. 2018). Studies on exercise show that moderate-intensity regular exercises and long-term exercises have positive effects on lipid metabolism. It has been shown that it increases HDL levels while decreasing blood levels of Total Cholesterol, LDL and Triglycerides. In addition to these changes in blood lipid levels, it is well known that high blood pressure and obesity diseases also decrease with exercise. (Lemura and Amdreacci, 2000; Fox et al., 1999; Karagöz, 2016). Due to this effect of exercise on healthy life dynamics, it is considered a fundamental factor in improving the quality of life of individuals. In recent years, the positive effects of aerobic exercise on metabolic health have received much attention. Especially with the prevalence of a sedentary lifestyle, insufficient exercise and physical activity can cause a number of health problems, including lipid metabolism (Dunstan et al., 2012; Mozaffarian et al., 2011; Barranco et al., 2019). Lipid metabolism is an important biochemical mechanism that includes the processes of synthesis, transportation and storage of fats in the body. Levels of lipoproteins such as low-density lipoprotein (LDL) and high-density lipoprotein (HDL) play a critical role in determining the risk of cardiovascular disease (Rossi et al., 2016; Mohr et al., 2014). In this context, understanding how aerobic exercise affects the lipid profile is important for protecting and improving cardiovascular health. At this point, spinning, which is an aerobic exercise; It is a type of entertaining activity accompanied by music, performed for weight loss purposes, and intensely stimulating muscle groups (Caria et al., 2007; Tortop et al., 2010; Uzun, 2016). It is a type of high-intensity cardiovascular activity and is widely preferred. It is a form of conditioning exercise. Spinning classes involve a dynamic exercise routine on special bikes and are very interesting as they are performed in groups, often accompanied by music. Therefore, its positive effects on lipid metabolism are inevitable. When the literature is examined; It is noteworthy that there are few studies examining the effects of spinning exercise on lipid metabolism in women. This research shows that a 6-week aerobic (spinning) exercise program applied to sedentary women has positive effects on lipid metabolism. It is thought that the research will shed light on the literature in terms of conducting more comprehensive studies examining these effects. and whose average age was 24.58±3.53. A bioelectrical impedance analyzer (TANİTA TC-418, USA) was used to determine the weight and fat percentage measurements of the participants. No diet program was applied to the participants during the study.

Abstract PO2-25-12: Production of a bespoke muscle resistance exercise (MRE) programme for use in a future clinical trial, following a detailed patient engagement program (PEP) in patients with advanced breast cancer (ABC)

Abstract Background: MRE investigations in early breast cancer have been undertaken but there has been little evaluation in ABC. Cancer guidelines suggest the use of physical activity, including MRE, to improve fatigue (National Comprehensive Cancer Network, 2.2020; European Society of Medical Oncology 2020) but improvement in other outcomes in ABC is less clear. In clinical trials, adherence to exercise intervention has been a challenge and has hampered investigation of other outcomes and little data exists evaluating the possible reasons for this poor adherence and compliance. In preparation for an exercise component as part of lifestyle intervention trial in ABC, a PEP was undertaken to evaluate an on-line web-based exercise program. Results would support continued usage of the program or creation of a new program. Methods: A commercially available program was used containing a library of exercises created for multiple disease types. There was no voice over. Using an exercise science professional, 2 sets of muscular resistance exercise programmes were created (A &amp;B), selecting exercises for upper and lower limb major muscle groups. Set A and B differed , with A involving younger leaner demonstrators and B older, less lean. Volunteers were asked to view the sets and complete a survey. The results of the survey, involving 21 volunteers of which 43% were over 60 years and presented previously, indicated that the following main modifications were needed to a program: use of demonstrators similar to patient's habitus and use of a voice-over to guide exercises. A short test video was produced incorporating these and other visual changes and viewed by a focus group of four volunteers. Results: The focus group concluded that the new visual and audio changes would allow them to more easily perform the exercises and increase the likelihood of compliance compared to the on-line program. The group advised involvement of a more diverse demonstrator group and further improvements to the voice-over. A professionally produced video has now been made with all the above changes. Conclusions: This PEP indicates that is necessary to review exercise programmes with patients and not assume they are all suitable for use in clinical trials. We believe a PEP of this kind with the resultant bespoke video is the first produced involving patients with ABC. This video will now be evaluated in a much larger diverse PPE which will help the development of a national UK clinical trial of exercise in ABC. Citation Format: Amanda Clarke, Jennifer Glendenning, Glen Davison, Catherine Harper-Wynne. Production of a bespoke muscle resistance exercise (MRE) programme for use in a future clinical trial, following a detailed patient engagement program (PEP) in patients with advanced breast cancer (ABC) [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO2-25-12.

Effect of a graded running race on lower limb muscle damage, jump performance and muscle soreness in men and women.

Delayed structural and functional recovery after a 20 km graded running race was analyzed with respect to the sex effect. Thirteen female and 14 male recreational runners completed the race and three test sessions: one before (PRE) and two after, once on Day 1 or 2 (D1-2) and then on Day 3 or 4 (D3-4). Muscle damage was assessed indirectly using ultrasonography to quantify changes in cross-sectional area (CSA) of 10 lower-limb muscles. Delayed onset of muscle soreness (DOMS) was assessed for three muscle groups. Functional recovery was quantified by kinetic analysis of a squat jump (SJ) and a drop jump (DJ) test performed on a sledge ergometer. Linear mixed models were used to assess control group reproducibility and recovery patterns according to sex. Regardless of sex, DOMS peaked at D1-2 for all muscle groups and resolved at D3-4. CSA was increased in each muscle group until D3-4, especially in the semimembranosus muscle. A specific increase was found in the short head of the biceps femoris in women. Regardless of sex, SJ and DJ performances declined up to D3-4. Depending on the muscle, positive and/or negative correlations were found between structural and functional changes. Some of these were sex-specific. Structural and functional recovery was incomplete in both sexes up to D3-4, although DOMS had disappeared. More emphasis should be placed on hamstring muscle recovery. Highlighting the intermuscular compensations that can occur during multi-joint testing tasks, the structural-functional relationships were either positive or negative, muscle- and sex-dependent.

Importance of the cervical paraspinal muscles in postoperative patient-reported outcomes and maintenance of sagittal alignment after anterior cervical discectomy and fusion.

The aim of this study was to investigate the influence of preoperatively assessed paraspinal muscle parameters on postoperative patient-reported outcomes and maintenance of cervical sagittal alignment after anterior cervical discectomy and fusion (ACDF). Patients with preoperative and postoperative standing cervical spine lateral radiographs and preoperative cervical MRI who underwent an ACDF between 2015 and 2018 were reviewed. Muscles from C3 to C7 were segmented into 4 functional groups: anterior, posteromedial, posterolateral, and sternocleidomastoid. The functional cross-sectional area and also the percent fat infiltration (FI) were calculated for all groups. Radiographic alignment parameters collected preoperatively and postoperatively included C2-7 lordosis and C2-7 sagittal vertical axis (SVA). Neck Disability Index (NDI) scores were recorded preoperatively and at 2 and 4-6 months postoperatively. To investigate the relationship between muscle parameters and postoperative changes in sagittal alignment, multivariable linear mixed models were used. Multivariable linear regression models were used to analyze the correlations between the changes in NDI scores and the muscles' FI. A total of 168 patients with NDI and 157 patients with sagittal alignment measurements with a median follow-up of 364 days were reviewed. The mixed models showed that a greater functional cross-sectional area of the posterolateral muscle group at each subaxial level and less FI at C4-6 were significantly associated with less progression of C2-7 SVA over time. Moreover, there was a significant correlation between greater FI of the posteromedial muscle group measured at the C7 level and less NDI improvement at 4-6 months after ACDF. The findings highlight the importance of preoperative assessment of the cervical paraspinal muscle morphology as a predictor for patient-reported outcomes and maintenance of C2-7 SVA after ACDF.

Horizontal running inside circular walls of Moon settlements: a comprehensive countermeasure for low-gravity deconditioning?

Long-lasting exposure to low gravity, such as in lunar settlements planned by the ongoing Artemis Program, elicits muscle hypotrophy, bone demineralization, cardio-respiratory and neuro-control deconditioning, against which optimal countermeasures are still to be designed. Rather than training selected muscle groups only, 'whole-body' activities such as locomotion seem better candidates, but at Moon gravity both 'pendular' walking and bouncing gaits like running exhibit abnormal dynamics at faster speeds. We theoretically and experimentally show that much greater self-generated artificial gravities can be experienced on the Moon by running horizontally inside a static 4.7 m radius cylinder (motorcyclists' 'Wall of Death' of amusement parks) at speeds preventing downward skidding. To emulate lunar gravity, 83% of body weight was unloaded by pre-tensed (36 m) bungee jumping bands. Participants unprecedentedly maintained horizontal fast running (5.4-6.5 m s-1) for a few circular laps, with intense metabolism (estimated as 54-74 mlO2 kg-1 min-1) and peak forces during foot contact, inferred by motion analysis, of 2-3 Earth body weight (corresponding to terrestrial running at 3-4 m s-1), high enough to prevent bone calcium resorption. A training regime of a few laps a day promises to be a viable countermeasure for astronauts to quickly combat whole-body deconditioning, for further missions and home return.

Hedgehog signaling is required for larval muscle development and larval metamorphosis of the mussel Mytilus coruscus

Understanding the developmental processes and signaling pathways involved in larval myogenesis and metamorphosis is crucial for comprehending the life history and adaptive strategies of marine organisms. In this study, we investigated the temporal and spatial patterns of myogenesis in the mussel Mytilus coruscus (Mc), focusing on the emergence and transformation of major muscle groups during different larval stages. We also explored the role of the Hedgehog (Hh) signaling pathway in regulating myogenesis and larval metamorphosis. The results revealed distinct developmental stages characterized by the emergence of specific muscular components, such as velum retractor muscles and anterior adductor muscles, in D-veliger and umbo larvae, which are responsible for the planktonic stage. In the pediveliger stage, posterior ventral, posterior adductor, and foot muscles appeared. After larval metamorphosis, the velum structure and its corresponding retractor muscles degenerate, indicating the transition from planktonic to benthic life. We observed a conserved pattern of larval musculature development and revealed a high degree of conservation across bivalve species, with comparable emergence times during myogenesis. Furthermore, exposure to the Hh signaling inhibitor cyclopamine impaired larval muscle development, reduced larval swimming activity, and inhibited larval metamorphosis in M. coruscus. Cyclopamine-mediated inhibition of Hh signaling led to reduced expression of four key genes within the Hh signaling pathway (McHh, McPtc, McSmo, and McGli) and the striated myosin heavy chain gene (McMHC). It is hypothesised that the abnormal larval muscle development in cyclopamine-treated groups may be an indirect effect due to disrupted McMHC expression. We provide evidence for the first time that cyclopamine treatment inhibited larval metamorphosis in bivalves, highlighting the potential involvement of Hh signaling in mediating larval muscle development and metamorphosis in M. coruscus. The present study provides insights into the dynamic nature of myogenesis and the regulatory role of the Hh signaling pathway during larval development and metamorphosis in M. coruscus. The results obtained in this study contribute to a better understanding of the evolutionary significance of Hh signaling in bivalves and shed light on the mechanisms underlying larval muscle development and metamorphosis in marine invertebrates.

THE EFFECTIVENESS OF PROGRESSIVE RESISTANCE TRAINING IN MANAGING PROGRESSIVE SUPRANUCLEAR PALSY: A CASE STUDY

SETTING The Centre for STRONG Medicine is an outpatient multidisciplinary geriatric service at Concord Hospital, Sydney. An 82-year-old male with a primary diagnosis of Progressive Supranuclear Palsy (PSP) with cardiac and metabolic comorbidities was referred in March 2023. PSP is a rare neurological disorder that affects gait, balance, vision, and cognition. The participant mobilised with a rollator and had previously sustained vertebral and wrist fractures secondary to falls. MANAGEMENT Management was to use progressive resistance training (PRT) to combat mobility decline, prevent falls and provide education to encourage independent exercise. Initial assessment determined current health status using Falls Self Efficacy Scale (FSE-I) and Fried Frailty Phenotype (FFP) questionnaires, and measured function and strength using maximal gait speed, five times sit-to-stand (5xSTS) and one repetition maximum (1RM), respectively. FSE-I determined a high fear of falling and FFP determined frail classification. Outcomes informed the PRT exercise prescription targeting the major muscle groups for 2-3 sets of 7-9 repetitions at 70-85% 1RM progressed gradually and preformed twice weekly in a supervised group. Education regarding breathing, exercise tempo, rest, progression, and risk mitigation were provided. All outcomes were reassessed after 12-weeks of training. RESULTS Attendance was 100% (23 sessions) with improvement in all outcomes. Functional improvements included 0.25metres/second increase in maximal gait speed, 2.5 second reduction in 5xSTS, and safe mobilisation without a rollator. Strength improvements included 101% increase in 1RM leg press, 100% increase in 1RM triceps extension and 72% increase in 1RM seated row. Frailty status improved to pre-frail and fear of falling reduced. Self-reported improvements included increased steadiness and confidence exercising unsupervised. DISCUSSION Although PSP is progressive, PRT resulted in meaningful benefits in strength and function that improved daily task performance and confidence. Further research is needed to investigate the effects of PRT on PSP management in a larger cohort.

Successful Management of an Acute Dystonic Reaction Induced by an Anesthetic Agent

Acute dystonic reactions (ADRs) are movement abnormalities characterized by involuntary muscle contractions that typically manifest after exposure to a triggering agent, such as a medication. The specific muscle groups affected determine the type of reaction. For instance, an oculogyric crisis primarily affects the ocular muscles, while oromandibular dystonia involves jaw opening and tongue protrusion. We present the rare case of a 68-year-old man with amyotrophic lateral sclerosis who was successfully treated for an ADR. The patient was admitted with loss of consciousness due to respiratory failure. Tracheostomy was promptly performed under sedation with multiple general anesthetic agents. Immediately after tracheostomy, the patient communicated via eye-blinking without any notable abnormalities, just as before the procedure. However, the following day, he became unresponsive to verbal cues and exhibited a decreased level of consciousness, accompanied by tongue dyskinesia, deviation of both eyes to the left, and loss of visual tracking. The patient’s vital signs remained stable. Brain imaging and an electroencephalogram revealed no abnormalities. Treatment with midazolam produced initial improvement; however, due to a significant side effect of hypotension, the treatment was switched to oral diazepam. The patient’s condition gradually improved, and the medication was eventually discontinued without further ADR episodes.

Anthropometry and Physical Features of Bangladeshi Women National Level Kho-Kho and Football Players: A Frank Comparison

Introduction: In Bangladesh Football is the most popular ball game but Kho-Kho is not that popular like Football. Kho-Kho is a popular Game in India but day by day it is becoming popular in Bangladesh. Major muscle groups are used in these two games because both games involve running, driving, jumping, swinging, and hand motions. Methods: Forty national-level women Football players and forty national-level women Kho-Kho players were studied in the present study.  The average age is between 14 to 21 years and the training age is between 2 to 6 years. All the anthropometric measurements and body mass were carried out with proper guidelines. Results: The average leg length for Female Kho-Kho players is 89.14 ( ±4.44 cm)  and that of Female Football players is 86.92 ( ±8.91) cm. The average leg length of women Kho-Kho players is 2.22 cm higher than the average leg length of women Football players which is statistically significant. There is also a significant difference (p ≤0.05) when average BMI is compared. The average fat percentage of Women Footballers is slightly higher than the average Fat % of women Kho-Kho players where the average fat percentage of women football players is 22.09 % ±4.05 and that of Kho-Kho players is 22.01 ±4.01. Conclusion: The Bangladeshi national-level women Kho-Kho players have better physiques than the national women Football players whereas the body composition of both groups is very close.

Effects of Treatments Applied in Myasthenia Gravis on Gait: Review

Myasthenia Gravis (MG) is an autoimmune disease in which neuromuscular transmission is blocked and neuromuscular junction physiology is affected. The main feature in MG is altered muscle weakness and fatigue of muscle groups that worsens with exercise and improves with rest. With the emergence of muscle weakness in the following periods, walking is affected in MG. This causes balance and walking problems. Most of the patients have complaints of falling and fear of falling. While applying MG treatment, myasthenic symptoms should be reduced and a stable clinical picture should be obtained in which the daily activities of the person are relieved. The aim of this study is to understand the effect of rehabilitation practices on gait in MG and to determine which exercises are effective. As a result, physiotherapy and rehabilitation approaches can provide solutions to patients' complaints, albeit symptomatically. Active resistance exercises, aerobic exercises, balance strategy training, endurance exercises, posture exercises, stretching exercises and active–passive range of motion exercises should be performed in an exercise program. In addition, rhythmic auditory stimulation and pre-surgical respiratory physiotherapy also have positive effects on walking.

The Effect of Self-Myofascial Release Method on the Suboccipital Muscle Group in the Treatment of Cervicogenic Headache

The primary objective of this study is to investigate the short-term and long-term effects of the Self-Myofascial Release Method (SMFR) on the suboccipital muscle group in the improvement of cervicogenic headache. Additionally, the study aims to compare the therapeutic mechanism of Self-fascial Release and acupuncture in the treatment of cervicogenic headache