Joint angle affects volitional and magnetically-evoked neuromuscular performance differentially

This study examined the volitional and magnetically-evoked neuromuscular performance of the quadriceps femoris at functional knee joint angles adjacent to full extension. Indices of volitional and magnetically-evoked neuromuscular performance (N= 15 healthy males; 23.5 ± 2.9 years; 71.5 ± 5.4 kg; 176.5 ± 5.5 cm) were obtained at 25°; 35° and 45° of knee flexion. Results showed that volitional and magnetically-evoked peak force (PFV; PTFE, respectively) and electromechanical delay (EMDV; EMDE, respectively) were enhanced by increased knee flexion. However, greater relative improvements in volitional compared to evoked indices of neuromuscular performance were observed with increasing flexion from 25° to 45° (e.g. EMDV; EMDE: 36% vs. 11% improvement, respectively; F[2,14] = 6.8; p < 0.05). There were no significant correlations between EMDV and EMDE or PFV and PTFE, respectively at analogous joint positions. These findings suggest that the extent of the relative differential between volitional and evoked neuromuscular performance capabilities is joint angle-specific and not correlated with performance capabilities at adjacent angles, but tends to be smaller with increased flexion. As such, effective prediction of volitional from evoked performance capabilities at both analogous and adjacent knee joint positions would lack robustness

Repeated exercise stress impairs volitional but not magnetically evoked electromechanical delay of the knee flexors

The effects of serial episodes of fatigue and recovery on volitional and magnetically evoked neuromuscular performance of the knee flexors were assessed in twenty female soccer players during: (i) an intervention comprising 4x35s maximal static exercise; (ii) a control condition. Volitional peak force (PFV) was impaired progressively (-16 % vs. baseline: 235.3±54.7 to 198.1±38.5 N) by the fatiguing exercise and recovered to within -97 % of baseline values following six-minutes of rest. Evoked peak twitch force (PTFE) was diminished subsequent to the fourth episode of exercise (23.3 %: 21.4±13.8 vs. 16.4±14.6 N) and remained impaired at this level throughout the recovery. Impairment of volitional electromechanical delay performance (EMDV) following the first episode of exercise (25.5 % :55.3±11.9 vs. 69.5±24.5 ms) contrasted with concurrent improvement (10.0 %: 24.5±4.7 vs. 22.1±5.0 ms) in evoked electromechanical delay (EMDE) (p <0.05) and this increased disparity between EMDE and EMDV remained during subsequent periods of intervention and recovery. The fatiguing exercise provoked substantial impairments to volitional strength and EMDV that showed differential patterns of recovery. However, improved EMDE performance might identify a dormant capability for optimal muscle responses during acute stressful exercise and an improved capacity to maintain dynamic joint stabilty during critical episodes of loading

Description of arts therapies practice with adults suffering from depression in the UK: Qualitative findings from the nationwide survey

There is growing evidence that arts therapies present a relevant treatment option for depression, but the experiences, methods, tools and methods of practice of arts therapists with this client group remain unclear. Thus, this research study aimed to describe the specifics of the practice of arts therapies with depression. In 2011, all arts therapists registered in the UK were invited to complete an online questionnaire concerning their practice in general and in relation to depression. The Arts Therapies Survey received 395 responses. Arts therapists who work primarily with depression were identified and compared to those who do not work with depression on a range of factors. These quantitative results were presented elsewhere (Zubala, MacIntyre, Gleeson, &amp; Karkou, 2013). An analysis of the qualitative material was guided by the strategy of grounded theory, and findings were obtained through thematic analysis. The current paper introduces these findings, adding depth to the knowledge previously gained through the quantitative analysis. Arts therapists worked across various settings with highly complex clients; however, therapists struggled with the tension of providing care according to guidelines, which they found inflexible and at times misguided. The therapists tended to vary the theoretical model of their therapeutic approach depending on individual client factors and often collaborated with other professionals using a variety of standardized tools to measure outcomes. The findings further offer a detailed understanding of the therapeutic process and describe the meaning of clinical practice within arts therapies

Knee joint neuromuscular activation performance during muscle damage and superimposed fatigue

This study examined the concurrent effects of exercise-induced muscle damage and superimposed acute fatigue on the neuromuscular activation performance of the knee flexors of nine males (age: 26.7 ± 6.1yrs; height 1.81 ± 0.05m; body mass 81.2 ± 11.7kg [mean ± SD]). Measures were obtained during three experimental conditions: (i) FAT-EEVID, involving acute fatiguing exercise performed on each assessment occasion plus a single episode of eccentric exercise performed on the first occasion and after the fatigue trial; (ii) FAT, involving the fatiguing exercise only and; (iii) CON consisting of no exercise. Assessments were performed prior to (pre) and at lh, 24h, 48h, 72h, and 168h relative to the eccentric exercise. Repeated-measures ANOVAs showed that muscle damage within the FAT-EEVID condition elicited reductions of up to 38%, 24%) and 65%> in volitional peak force, electromechanical delay and rate of force development compared to baseline and controls, respectively (F[io, 80] = 2.3 to 4.6; p to 30.7%>) following acute fatigue (Fp; i6] = 4.3 to 9.1; p ; Fp, iq = 3.9; p <0.05). The safeguarding of evoked muscle activation capability despite compromised volitional performance might reveal aspects of capabilities for emergency and protective responses during episodes of fatigue and antecedent muscle damaging exercise

Match-play, training workloads and sensorimotor and neuromuscular performance of elite young soccer players

Nigel Gleeson - ORCID: 0000-0003-0072-1521 https://orcid.org/0000-0003-0072-1521Purpose: The purpose of this study was to assess sensorimotor and neuromuscular performance capabilities over an in-season microcycle in early-career professional soccer players and to examine the relationship with training and match-play workload. Methods: Sensorimotor and neuromuscular performance capabilities (isometric knee extensor: force replication error, peak force, electromechanical delay, rate of force development) of 12 professional soccer players were assessed over a 7-day period. Training and match-play workload was also recorded over the same period for each player (high-intensity running distance). Fluctuations in sensorimotor and neuromuscular performance and workload variables were analysed. Results: There was evidence of fluctuations in sensorimotor and neuromuscular performance capability over the microcycle that reached statistical (p < .005) and practical (18.1% [baseline-to-peak]) significance alongside heterogeneity in training and match workload (264% [coefficient of variation], p < .0005). Some temporal congruence among fluctuating patterns of intra-microcycle training and match-play load and concomitant electromechanical delay performance was noted (p < .005). Asynchronous responses were observed for peak force, but rate of force development and force replication error capabilities were unchanged during the microcycle. Conclusion: While some neuromuscular performance capabilities fluctuate over an in-season microcycle and are influenced partially by high-intensity running workload, sensorimotor performance capabilities were unchanged during the microcycle.https://doi.org/10.55860/RIIE10933pubpub

RT‐CGM in conjunction with CSII vs MDI in optimizing glycaemic control in T1DM: Systemic review and meta‐analysis

From Wiley via Jisc Publications RouterIntroduction: To determine the impact of real‐time continuous glucose monitoring (RT‐CGM) in conjunction with ‘Open loop’‐ continuous subcutaneous insulin infusion (CSII) as compared to conventional multiple daily injections (MDI) in type 1 diabetes. Methods: We explored the COCHRANE database, MEDLINE, WEB OF SCIENCE, GOOGLE SCHOLARS, PUBMED, EMBASE, and cited literature in articles retrieved (2010–2021) for all randomized controlled trials and real‐world trials of more than 6 months duration in patients with type 1 diabetes that compared RT‐CGM+CSII vs RT‐ CGM+MDI. A total of 1645 publications have been identified; however, only 3 trials fulfilled our inclusion criteria with a total number of 150 patients (72 patients using RT‐CGM+CSII and 78 patients on RT‐CGM+MDI). A Systematic Review and Meta‐analysis were carried out. Results: No statistically significant reduction in HbA1c was found on comparing RT‐CGM+CSII vs RT‐ CGM + MDI, with p‐value = .75. Likewise, impact on TIR, weight and insulin usage was found to be statistically insignificant with p‐value of 0.15, 0.75 and 0.20 respectively. There was an overall homogeneity between the 3 trials in respect to all previous variables with I2 being 0%. Conclusions: Real‐time continuous glucose monitors in conjunction with MDI open‐loop CSII had a similar impact on HbA1c, weight, insulin usage and TIR. In addition, RT‐CGM when combined with CSII was associated with higher costs and reduced quality of life, hence RT‐ CGM+MDI can be considered as a cheaper, safer yet equivalent substitute. Review Registration: This study was registered in PROSPERO (International prospective register of systematic reviews). Registration Name: RT‐CGM in conjunction with CSII vs MDI in optimizing glycaemic control in T1DM: a systematic review. Registration No: CRD42021255333. Accessible at: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42021255333. Amendments: Few amendments to the above‐mentioned registration were made: (1) Title (Meta‐analysis was added). (2) Prof. Gleeson was added as an author. (3) Real‐world trials were included. (4) Outcomes required in studies as per our inclusion criteria amended to include at least 1 outcome. (5) Bias risk was assessed by the CASP tool.5pubpub

Pre-surgery exercise and post-operative physical function of people undergoing knee replacement surgery: A systematic review and meta-analysis of randomized controlled trials

Objective: To summarize the evidence regarding the effectiveness and dose-response characteristics of pre-operative exercise programmes on post-operative physical function following total knee arthroplasty. Data sources: CINAHL, Cochrane Library, PubMed, SPORTDiscus and EMBASE. Study selection: Randomized controlled trials were eligible if they provided full description of physiological stress (i.e. mode, frequency, intensity and duration). Data extraction: Data extraction and evaluation were performed by one reviewer. Methodological quality of the selected studies was assessed using the Physiotherapy Evidence Database scale. Data synthesis: Twelve candidate studies were identified, but only 3 papers satisfied all inclusion criteria: 2 studies evaluated the effect of resistance training and 1 trial investigated proprioceptive training. The latter study elicited significantly enhanced post-operative gains in function for indices of standing balance (overall stability index: Hedges' g = -1; anteroposterior stability index: Hedges' g = -1.15; 6 weeks post-surgery). Results of meta-analysis based on the findings of 2 studies showed that, compared with controls, prehabilitative exercise involving resistance training offered no additional gains in isometric quadriceps muscle strength at 6 and 12 weeks post-operatively. Conclusion: Despite a potential for efficacy of exercise-based conditioning, this review highlights the scarcity of robust dose-response evidence to guide the formulation of total knee arthroplasty prehabilitation effectively.sch_phy49pub4731pub

Patterns of pain location in music students: A cluster analysis

From Springer Nature via Jisc Publications RouterNigel Gleeson - ORCID: 0000-0003-0072-1521 https://orcid.org/0000-0003-0072-1521Background: According to existing literature, musicians experience high rates of musculoskeletal (MSK) disorders involving different anatomical areas. The aim of the study was to identify patterns of pain location in a sample of music students enrolled in different pan-European music institutions. A further goal was to explore the association between the identified pain patterns and students’ characteristics. Methods: A total of 340 music students (mean age 23.3 years, 66.2% female) with current MSK pain completed a web-based questionnaire including both background information (i.e. lifestyle and physical activity, practice habits) and clinical features (i.e. pain characteristics, disability, pain self-efficacy, psychological distress, perfectionism and fatigue). Results: Five patterns of pain location were identified by hierarchical cluster analysis: wrist pain (WP) representing 22.6% of the total sample, widespread pain (WSP) (16.9%), right shoulder pain (RSP) (18.5%), both shoulders pain – left concentrated (LSP) (23.2%), neck and back pain (NBP) (18.8%). Amongst the identified patterns of pain location, bivariate analysis identified the WSP cluster as containing the largest number of associated variables. Participants in this cluster reported a higher percentage of women (p < .05), a higher perceived exertion (p < .01) and psychological distress (p < .001), as well as a lower level of self-efficacy (p < .01). Similarly, a higher percentage of participants included in the WSP cluster perceived their musical activity as the main cause of their MSK pain (p < .01). Additionally, a higher level of disability in relation to playing-related activity was reported by participants included in the WP and WSP clusters (p < .001). The RSP cluster was characterised by a higher percentage of participants playing an instrument in a neutral position (p < .001) and lower levels of socially prescribed perfectionism (p < .01). A higher percentage of participants playing an instrument with both arms elevated in the left quadrant position were included in the LSP cluster and a higher percentage of singers were included in the NBP cluster (p < .001). Conclusions: Five distinct patterns of pain location were identified and their associations with the students’ characteristics were explored. These findings may be helpful in the exploration of different aetiologies of MSK pain among musicians and in the development of targeted preventive strategies and treatments.An amendment to this paper has been published and can be accessed via the original article.22pubpu

A longitudinal investigation of the factors associated with increased RISk of playing-related musculoskeletal disorders in MUsic students (RISMUS): a study protocol.

From Europe PMC via Jisc Publications RouterPublication status: PublishedFunder: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (CH), Grants: 10531C_182226BACKGROUND:The achievement and improvement of skills in musical techniques to reach the highest levels of performance may expose music students to a wide range of playing-related musculoskeletal disorders (PRMDs). In order to establish effective solutions for PRMDs and to develop future preventive measures, it is fundamental to firstly identify the main risk factors that play a significant role in the development of musculoskeletal conditions and symptoms. The aim of the study is to identify those factors associated with increased risk of PRMDs among music students. A further goal is to characterise this population and describe the clinical features of PRMDs, as well as to determine the evolving course of PRMDs in music students during their training. METHODS:One hundred and ninety schools have been invited to participate in this study, sixty of which have already confirmed officially their support for the investigation's recruitment procedures, by means of a subsequent distribution of the link to a web-based questionnaire to their student groups (total potential student numbers available: n = 12,000 [based on ~ 200 students per school on average, and 60 volunteering schools]; expected number of students: n = 3000 [based on a 25% response rate from the 12,000 students attending the 60 volunteering schools]). The web-based questionnaire includes questions about any PRMD that students have experienced during their training, and different potential risk factors (i.e. lifestyle and physical activity, practice habits, behaviour toward prevention and health history, level of stress, perfectionism, fatigue and disability). Overall recurrence or new onsets of PRMDs will be assessed at 6 and 12 months after the first data collection to investigate and record the development of new incidents within a period of a year and to enable characterisation of the nature and the evolving course of PRMDs. DISCUSSION:To the best of our knowledge, no other longitudinal studies on risk factors for PRMDs among music students have been conducted so far. Therefore, this study can be considered as an opportunity to begin filling the gaps within current research in this field and to generate new knowledge within musical contexts in education and employment. TRIAL REGISTRATION:ClinicalTrials.gov ( NCT03622190 ), registration date 09/08/2018