The Impact of Tournament Load on Neuromuscular Function, Perceived Wellness and Coach Ratings of Performance During Intensified Youth Netball Competition

2022 ◽  
Author(s):  
Marcus Lee ◽  
Jericho Wee ◽  
Nick Dobbin ◽  
Quintin Roman ◽  
Gabriel Choong
Keyword(s):  
Neuromuscular Function ◽  
Perceived Wellness ◽  
The Impact

scholarly journals The impact of physical exercise on neuromuscular function in Myasthenia gravis patients

Medicine ◽  
2018 ◽  
Vol 97 (31) ◽  
pp. e11510 ◽  
Author(s):  
Elisabet Westerberg ◽  
Carl Johan Molin ◽  
Sören Spörndly Nees ◽  
Johan Widenfalk ◽  
Anna Rostedt Punga
Keyword(s):  
Physical Exercise ◽  
Myasthenia Gravis ◽  
Neuromuscular Function ◽  
The Impact

The Conceptualization and Measurement of Perceived Wellness: Integrating Balance across and within Dimensions

1997 ◽  
Vol 11 (3) ◽  
pp. 208-218 ◽  
Author(s):  
Troy Adams ◽  
Janet Bezner ◽  
Mary Steinhardt
Keyword(s):  
Factor Analysis ◽  
Age Distribution ◽  
Face Validity ◽  
University Of Texas ◽  
Social And Emotional ◽  
Gender And Age ◽  
Perceived Wellness ◽  
Perceived Wellness Survey ◽  
The University ◽  
The Impact

Purpose. The impact of individual perceptions on health is well-established. However, no valid and reliable measure of individual wellness perceptions exists. Therefore, the purpose was to introduce a measure called the Perceived Wellness Survey (PWS). Design. Convenience sampling facilitated recruitment of a sample large enough to perform factor analysis with adequate power (.85). The appropriateness of factor analysis is supported by Bartlett's test ( χ2 = 7110, p ≤ .01) and the Kaiser-Meyer-Olkin measure of sampling adequacy (.91). Setting. The sample (n = 558) was composed of 3M Inc. employees from multiple sites in Austin, Texas (n = 393); employees from MuRata Electronics, Inc., College Station, Pennsylvania (n = 53); and students enrolled at the University of Texas at Austin (n = 112). Subjects. Racial, gender, and age distribution was, respectively, 6.3% African-American (n = 35), 8.2% Asian (n = 46), 73.3% Caucasian (n = 409), 9.5% Hispanic (n = 53), and 2.7% other (n = 15); 47.8% male (n = 267), and 52.2% female (n = 291); and 36.8 years. Measures. Measures included the Perceived Wellness Survey, and two additional versions of the Perceived Wellness Survey designed to measure both discriminant and face validity. Perceived Wellness Survey subscales include physical, spiritual, intellectual, psychological, social, and emotional dimensions. Results. All subscales were correlated ( p ≤ . 05) with the Perceived Wellness Survey composite and with each other. Evidence of internal consistency (α = .88 to .93), and discriminant, face, and factorial validity was provided. Finally, the Perceived Wellness Survey appears to be a unidimensional scale. Conclusion. The unidimensional nature of the Perceived Wellness Survey suggests that perceptions of wellness in various dimensions are intertwined by their affective nature. The Perceived Wellness Survey appears to be reasonably valid and reliable; however, further research is needed.

M1050 The Impact of Asymptomatic Abdominal Lesions on Self-Perceived Wellness: A Pilot Study of Patients Referred for Endoscopic Ultrasound

2010 ◽  
Vol 138 (5) ◽  
pp. S-321
Author(s):  
Gregory A. Cote ◽  
Christine E. Hovis ◽  
Cara Kohlmeier ◽  
Gregory S. Sayuk ◽  
Dayna S. Early
Keyword(s):  
Pilot Study ◽  
Endoscopic Ultrasound ◽  
Perceived Wellness ◽  
Abdominal Lesions ◽  
The Impact

Nimodipine Improves Reinnervation and Neuromuscular Function after Injury to the Recurrent Laryngeal Nerve in the Rat

2007 ◽  
Vol 116 (8) ◽  
pp. 623-630 ◽  
Author(s):  
Jonas Hydman ◽  
Sten Remahl ◽  
Gunnar Björck ◽  
Mikael Svensson ◽  
Per Mattsson
Keyword(s):  
Recurrent Laryngeal Nerve ◽  
Motor Neurons ◽  
Neuromuscular Junctions ◽  
Neuromuscular Function ◽  
Nerve Fibers ◽  
Laryngeal Nerve ◽  
Crush Injury ◽  
Adult Rats ◽  
Somatotopic Organization ◽  
The Impact

Objectives: Injury of the recurrent laryngeal nerve (RLN) is associated with a high degree of neuronal survival, but leads to various levels of vocal fold motion impairment or laryngeal synkinesis, which has been attributed to misdirected reinnervation of the target muscles in the larynx or aberrant, competing reinnervation from adjacent nerve fibers. The aim of the present study was to evaluate the impact of the regeneration-promoting agent nimodipine on reinnervation and neuromuscular function following RLN crush injury. Methods: Sixty adult rats were randomized into nimodipine-treated or untreated groups and then underwent RLN crush injury. Reinnervation of the posterior cricoarytenoid muscle (PCA) was assessed by electrophysiological examination, retrograde tracing of lower motor neurons before and after injury, and quantification of neuromuscular junctions in the PCA muscle. Results: At 6 weeks after injury, the nimodipine-treated animals showed significantly enhanced neuromuscular function and also demonstrated a higher number of motor neurons in the brain stem that had reinnervated the PCA, compared to the untreated animals. The somatotopic organization of ambiguus motor neurons innervating the larynx was similar before injury and after reinnervation. Conclusions: Nimodipine improves regeneration and neuromuscular function following RLN injury in the adult rat, and could be of use in future strategies following RLN injury.

Aging impairs neurogenic contraction in guinea pig urinary bladder: role of oxidative stress and melatonin

2007 ◽  
Vol 293 (2) ◽  
pp. R793-R803 ◽  
Author(s):  
Pedro J. Gómez-Pinilla ◽  
Maria J. Pozo ◽  
Pedro J. Camello
Keyword(s):  
Oxidative Stress ◽  
Urinary Bladder ◽  
Guinea Pig ◽  
Electrical Field Stimulation ◽  
Neuromuscular Function ◽  
Melatonin Treatment ◽  
Age Related ◽  
Afferent Fibers ◽  
Bladder Disorders ◽  
The Impact

The incidence of urinary bladder disturbances increases with age, and free radical accumulation has been proposed as a causal factor. Here we investigated the association between changes in bladder neuromuscular function and oxidative stress in aging and the possible benefits of melatonin treatment. Neuromuscular function was assessed by electrical field stimulation (EFS) of isolated guinea pig detrusor strips from adult and aged female guinea pigs. A group of adult and aged animals were treated with 2.5 mg·kg−1·day−1 melatonin for 28 days. Neurotransmitter blockers were used to dissect pharmacologically the EFS-elicited contractile response. EFS induced a neurogenic and frequency-dependent contraction that was impaired by aging. This impairment is in part related to a decrease in detrusor myogenic contractility. Age also decreased the sensitivity of the contraction to pharmacological blockade of purinergic and sensitive fibers but increased the effect of blockade of nitrergic and adrenergic nerves. The density of cholinergic and nitrergic nerves remained unaltered, but aging modified afferent fibers. These changes were associated with an increased level of markers for oxidative stress. Melatonin treatment normalized oxidative levels and counteracted the aging-associated changes in bladder neuromuscular function. In conclusion, these results show that aging modifies neurogenic contraction and the functional profile of the urinary bladder plexus and simultaneously increases the oxidative damage to the organ. Melatonin reduces oxidative stress and improves the age-induced changes in bladder neuromuscular function, which could be of importance in reducing the impact of age-related bladder disorders.

scholarly journals Impact of Hydration Status on Electromyography and Ratings of Perceived Exertion During the Vertical Jump

2019 ◽  
Vol 7 (4) ◽  
pp. 1
Author(s):  
Paul T Donahue ◽  
Samuel J Wilson ◽  
Charles C Williams ◽  
Melinda Valliant ◽  
John C Garner
Keyword(s):  
Muscle Activity ◽  
Perceived Exertion ◽  
Vertical Jump ◽  
Neuromuscular Function ◽  
Medial Gastrocnemius ◽  
Anaerobic Performance ◽  
Subjective Measures ◽  
Ratings Of Perceived Exertion ◽  
Vertical Jumping ◽  
The Impact

Background: The vertical jumping task is commonly used to assess lower-body power output in athletic populations, in addition to being commonly used to during investigations of hydration and anaerobic performance. Changes in neuromuscular function during a hypohydrated state have been proposed as a potential mechanism to decreases in anaerobic performance. Objectives: The primary purpose of this investigation was to examine the impact of hydration state on electromyography during the vertical jumping task. Methods: Twenty recreationally trained males were tested in three hydration conditions (hypohydrated, euhydrated, and control). Testing included maximal voluntary contractions of the vastus lateralis, vastus medialis, semitendinosus and medial gastrocnemius. Participants performed three maximal countermovement and squat jumps respectively for a total of six jumps in each condition. Both mean muscle activity and percentage of maximal voluntary contraction were calculated across the propulsive phase of each jump. Additionally, measures of RPE and the use of a mood rating scale were used as subjective measures. Results: No differences were seen in mean muscle activity and percentage of MVC in either of the jumping conditions (p > 0.05). Significant differences were seen with higher ratings of perceived exertion as well as lower levels of mood ratings after the hypohydrated condition (p = 0.02 and p = 0.048 respectively). Conclusions: Decrements seen in vertical jump performance during a hypohydrated state appear to be caused from changes other than neuromuscular function and muscle activity. Differences in subjective measures may provide insight into changes in motivational levels and potentially impacting performance.

scholarly journals Effect of Different Repeated-High-Intensity-Effort Bouts on Subsequent Running, Skill Performance, and Neuromuscular Function

2016 ◽  
Vol 11 (3) ◽  
pp. 311-318 ◽  
Author(s):  
Rich D. Johnston ◽  
Tim J. Gabbett ◽  
David G. Jenkins ◽  
Michael J. Speranza
Keyword(s):  
High Intensity ◽  
Rugby League ◽  
Neuromuscular Function ◽  
Neuromuscular Fatigue ◽  
Physical Contact ◽  
Upper Body ◽  
Video Recordings ◽  
Skill Performance ◽  
The Impact

Purpose:To assess the impact of different repeated-high-intensity-effort (RHIE) bouts on player activity profiles, skill involvements, and neuromuscular fatigue during small-sided games.Participants:22 semiprofessional rugby league players (age 24.0 ± 1.8 y, body mass 95.6 ± 7.4 kg).Methods:During 4 testing sessions, they performed RHIE bouts that each differed in the combination of contact and running efforts, followed by a 5-min off-side small-sided game before performing a second bout of RHIE activity and another 5-min small-sided game. Global positioning system microtechnology and video recordings provided information on activity profiles and skill involvements. A countermovement jump and a plyometric push-up assessed changes in lower- and upper-body neuromuscular function after each session.Results:After running-dominant RHIE bouts, players maintained running intensities during both games. In the contact-dominant RHIE bouts, reductions in moderate-speed activity were observed from game 1 to game 2 (ES = –0.71 to –1.06). There was also moderately lower disposal efficiency across both games after contact-dominant RHIE activity compared with running-dominant activity (ES = 0.62–1.02). Greater reductions in lower-body fatigue occurred as RHIE bouts became more running dominant (ES = –0.01 to –1.36), whereas upper-body fatigue increased as RHIE bouts became more contact dominant (ES = –0.07 to –1.55).Conclusions:Physical contact causes reductions in running intensity and the quality of skill involvements during game-based activities. In addition, the neuromuscular fatigue experienced by players is specific to the activities performed.

scholarly journals The Impact of ACTN3 Gene Polymorphisms on Susceptibility to Exercise-Induced Muscle Damage and Changes in Running Economy Following Downhill Running

2021 ◽  
Vol 12 ◽  
Author(s):  
Leonardo Coelho Rabello de Lima ◽  
Carlos Roberto Bueno Junior ◽  
Claudio de Oliveira Assumpção ◽  
Natália de Menezes Bassan ◽  
Renan Vieira Barreto ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Muscle Damage ◽  
Perceived Exertion ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Neuromuscular Function ◽  
Running Economy ◽  
Downhill Running ◽  
Exercise Induced ◽  
The Impact

This study aimed to investigate if ACTN3 gene polymorphism impacts the susceptibility to exercise-induced muscle damage (EIMD) and changes in running economy (RE) following downhill running. Thirty-five healthy men were allocated to the two groups based on their ACTN3 gene variants: RR and X allele carriers. Neuromuscular function [knee extensor isometric peak torque (IPT), rate of torque development (RTD), and countermovement, and squat jump height], indirect markers of EIMD [muscle soreness, mid-thigh circumference, knee joint range of motion, and serum creatine kinase (CK) activity], and RE (oxygen uptake, minute ventilation, blood lactate concentration, and perceived exertion) for 5-min of running at a speed equivalent to 80% of individual maximal oxygen uptake speed were assessed before, immediately after, and 1–4 days after a 30-min downhill run (−15%). Neuromuscular function was compromised (P < 0.05) following downhill running with no differences between the groups, except for IPT, which was more affected in the RR individuals compared with the X allele carriers immediately (−24.9 ± 6.9% vs. −16.3 ± 6.5%, respectively) and 4 days (−16.6 ± 14.9% vs. −4.2 ± 9.5%, respectively) post-downhill running. EIMD manifested similarly for both the groups except for serum CK activity, which was greater for RR (398 ± 120 and 452 ± 126 U L–1 at 2 and 4 days following downhill running, respectively) compared with the X allele carriers (273 ± 121 and 352 ± 114 U L–1 at the same time points). RE was compromised following downhill running (16.7 ± 8.3% and 11 ± 7.5% increases in oxygen uptake immediately following downhill running for the RR and X allele carriers, respectively) with no difference between the groups. We conclude that although RR individuals appear to be more susceptible to EIMD following downhill running, this does not extend to the changes in RE.

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