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Kaczmarek P, Lubiatowski P, Cisowski P, Bręborowicz E, Ogrodowicz P, Grygorowicz M, Laver L, Dudziński W, Romanowski L. Handball players have superior shoulder proprioception: a prospective controlled study. J Shoulder Elbow Surg 2024; 33:e1-e12. [PMID: 37625691 DOI: 10.1016/j.jse.2023.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 07/11/2023] [Accepted: 07/21/2023] [Indexed: 08/27/2023]
Abstract
BACKGROUND Proper proprioceptive and neuromuscular control is crucial for the overhead athlete's performance. The aim of the present study was to evaluate the shoulder joint position sense (JPS) levels in overhead throwing athletes. The secondary aim was to confront the proprioceptive abilities with glenohumeral adaptive changes and pathologies among athletes. METHODS Ninety professional handball players and 32 healthy volunteers were recruited. JPS levels were measured by an electronic goniometer and expressed as values of an active reproduction of the joint position (ARJP) and as error of ARJP (EARJP) in 3 different reference positions for each movement (abduction and flexion at 60°, 90°, and 120°; internal [IR] and external rotation [ER] at 30°, 45°, and 60°). RESULTS Side-to-side differences revealed significantly better values of EARJP for the throwing shoulders in abduction at 90° and 120°, flexion at 90° and 120°, IR at 60°, and ER at 30° and 60° compared with the nonthrowing shoulders. Handball players showed significantly better proprioceptive levels in their throwing shoulder compared to the dominant shoulder of the control group in abduction at 90° (P = .037) and 120° (P = .001), flexion at 120° (P = .035), IR at 60° (P = .045), and in ER at 60° (P = .012). DISCUSSION Handball players present superior shoulder JPS in their dominant throwing shoulder at high range of motion angles when compared to a nonathlete population and to their own nondominant shoulder.
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Affiliation(s)
| | - Przemysław Lubiatowski
- Rehasport Clinic, Poznań, Poland; Department of Traumatology, Orthopaedics and Hand Surgery, Poznań University of Medical Sciences, Poznań, Poland.
| | - Paweł Cisowski
- Rehasport Clinic, Poznań, Poland; Department of Spine Disorders and Pediatric Orthopedics, Poznań University of Medical Sciences, Poznań, Poland
| | - Ewa Bręborowicz
- Department of Traumatology, Orthopaedics and Hand Surgery, Poznań University of Medical Sciences, Poznań, Poland
| | - Piotr Ogrodowicz
- Rehasport Clinic, Poznań, Poland; Department of Traumatology, Orthopaedics and Hand Surgery, Poznań University of Medical Sciences, Poznań, Poland
| | | | - Lior Laver
- Hillel Yaffe Medical Center, Hadera, Israel; ArthroSport Clinic, Tel-Aviv, Israel
| | | | - Leszek Romanowski
- Department of Traumatology, Orthopaedics and Hand Surgery, Poznań University of Medical Sciences, Poznań, Poland
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Pedrosa GF, Kler OS, Rezende LFSP, Filho HLDS, Soares YM, Avelar ED, Souza JCLD, Cruz PWDS, Laporta L, Figueiredo LS. Upper and Lower Limbs Acute Fatigue Did Not Mitigate Male Trained Air Force Soldiers' Marksmanship. Percept Mot Skills 2023; 130:2343-2361. [PMID: 37670435 DOI: 10.1177/00315125231199813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
In this study, we aimed to investigate the impact of acute fatigue on pistol shooting performance among Air Force marksmen. We compared the accuracy, precision, speed-accuracy trade-off, shooting cycle time, and hits on a silhouette target among 12 Brazilian Air Force servicemen (M age = 21.5, SD - 1.6 years) under both fatigue and non-fatigue conditions in a crossover design. In the fatigued condition, the participants performed a fatigue protocol composed of side runs, vertical jumps, push-ups, running, and burpees exercises before shooting. Participants performed the countermovement jump and the plyometric push-ups tests on a contact mat before and immediately after the fatigue protocol to compare the heights achieved pre- and post-fatigue. Paired t-tests showed a significant performance reduction of 34.36% and 40.02% for the countermovement jump and plyometric push-ups, respectively, indicating that participants were fatigued in their lower and upper limbs. In the non-fatigued condition, no exercise was performed before shooting. Results indicated no significant differences between conditions on shooting precision (p = .125; ES: .54), speed-accuracy trade-off (p = .261; ES = .33), hits within the silhouette (p = .167; ES = .41), or shooting cycle times (p = .868; ES = .05); but accuracy was greater (p = .025; ES: .54) when fatigued. We concluded that overall shooting performance was not impaired by physical fatigue, and shooting accuracy appeared to be improved. Perhaps physical fatigue was not enough to impair shooting accuracy in this young adult group, as accuracy decline is expected instead when shooters are in an exhausted state. Further research is needed to confirm these findings and test this presumption.
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Affiliation(s)
- Gustavo Ferreira Pedrosa
- Centro de Instrução e Adaptação da Aeronáutica, Força Aérea Brasileira, Lagoa Santa, Brazil
- Department of Individual Sports, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Oberdan Souza Kler
- Centro de Instrução e Adaptação da Aeronáutica, Força Aérea Brasileira, Lagoa Santa, Brazil
| | | | | | - Ytalo Mota Soares
- Department of Physical Education, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Erick Dias Avelar
- Centro de Instrução e Adaptação da Aeronáutica, Força Aérea Brasileira, Lagoa Santa, Brazil
| | | | | | - Lorenzo Laporta
- Department of Individual Sports, Universidade Federal de Santa Maria, Santa Maria, Brazil
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Li F, Bi J, Liang Z, Li L, Liu Y, Huang L. Functional Near-Infrared Spectroscopy-Based Evidence of the Cerebral Oxygenation and Network Characteristics of Upper Limb Fatigue. Bioengineering (Basel) 2023; 10:1112. [PMID: 37892842 PMCID: PMC10603828 DOI: 10.3390/bioengineering10101112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/29/2023] Open
Abstract
OBJECTIVE The objective of this research is to better understand the effects of upper limb fatigue on the cerebral cortex. The aim of this study was to investigate the characteristics of cerebral oxygenation and cortical functional connectivity in healthy adults after upper limb fatigue using functional near-infrared spectroscopy (fNIRS). METHODS Nineteen healthy adults participated in this study. The participants began exercising on an arm crank ergometer with no load, which was then increased by 0.2 kg per minute, maintaining a speed of at least 90 revolutions per minute during the exercise. Functional near-infrared spectroscopy covering the prefrontal cortex and motor area was used to monitor brain activity during rest and exercise. Heart rate and RPE were monitored during exercise to evaluate the degree of fatigue. Paired-sample t-tests were used to examine differences in the concentration of oxygenated hemoglobin (HbO2) and functional connectivity before and after fatigue. RESULTS All participants completed the exercise test that induced fatigue. We observed a significant decrease in HbO2 levels in the prefrontal and motor areas after exercise. In addition, brain network features showed a significant decrease in functional connectivity between the left and right motor cortices, between the motor and prefrontal cortices, and between both prefrontal cortices after fatigue. CONCLUSION This study demonstrates that, in healthy adults, exercise-induced fatigue in the upper limbs significantly affects brain function. In particular, it leads to reduced functional connectivity between the motor cortex and the prefrontal cortex.
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Affiliation(s)
| | | | | | | | | | - Lingyan Huang
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai 200438, China; (F.L.)
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4
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Anti-fatigue Effect of Traditional Chinese Medicines: A Review. Saudi Pharm J 2023; 31:597-604. [PMID: 37063439 PMCID: PMC10102495 DOI: 10.1016/j.jsps.2023.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/27/2023] [Indexed: 03/11/2023] Open
Abstract
A third of the world's population suffers from unexplained fatigue, hugely impacting work learning, efficiency, and health. The fatigue development may be a concomitant state of a disease or the side effect of a drug, or muscle fatigue induced by intense exercise. However, there are no authoritative guides or clinical medication recommendations for various fatigue classifications. Traditional Chinese medicines (TCM) are used as dietary supplements or healthcare products with specific anti-fatigue effects. Thus, TCM may be a potential treatment for fatigue. In this review, we outline the pathogenesis of fatigue, awareness of fatigue in Chinese and western medicine, pharmacodynamics mechanism, and substances. Additionally, we offer a comprehensive summary of fatigue and forecast the potential effect of novel herbal-based medicines against fatigue.
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De Bock S, Ampe T, Rossini M, Tassignon B, Lefeber D, Rodriguez-Guerrero C, Roelands B, Geeroms J, Meeusen R, De Pauw K. Passive shoulder exoskeleton support partially mitigates fatigue-induced effects in overhead work. APPLIED ERGONOMICS 2023; 106:103903. [PMID: 36148702 DOI: 10.1016/j.apergo.2022.103903] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/04/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Despite the potential of occupational passive shoulder exoskeletons (PSEs) to relieve overhead work, limited insights in overhead work precision performance impedes large-scale adoption in industry. OBJECTIVE To investigate the effect of PSE support on the reduction in task performance caused by physical fatigue. METHODS This experiment consisted of a randomized, counterbalanced cross-over design comparing Exo4Work PSE support and no support, in a physically fatigued state and a control condition. Precision performance was determined using execution speed and drilling errors. Muscle activity and shoulder joint kinematics were recorded. RESULTS Fatigue altered task performance, shoulder joint kinematics, muscle activity and subjective experience during overhead work. The PSE support mitigated the fatigue-induced changes in shoulder kinematics. Additionally, a part of the fatigue-induced co-activation of shoulder stabilizing muscles was avoided when working with the PSE. The PSE support also reduced the activity of the anterior and medial deltoid. CONCLUSION Physical fatigue provokes compensatory movements and increased co-contraction of muscles when executing overhead work. These fatigue-induced alterations are generally believed to increase the overall musculoskeletal load. The support provided by the PSE reduced muscle activity of muscles working to elevate the arm, but also partially mitigated those fatigue-induced effects. SIGNIFICANCE This study shows that the effect of PSE support on precision performance is limited, and suggested that, apart from the known effects of PSE support during overhead work, wearing the exoskeleton in a physically fatigued state may provide additional advantages.
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Affiliation(s)
- Sander De Bock
- BruBotics, Vrije Universiteit Brussel, Brussels, Belgium; Human Physiology and Sports Physiotherapy Research Group, Vrije Universiteit Brussel, Brussels, Belgium
| | - Toon Ampe
- BruBotics, Vrije Universiteit Brussel, Brussels, Belgium; Human Physiology and Sports Physiotherapy Research Group, Vrije Universiteit Brussel, Brussels, Belgium
| | - Marco Rossini
- BruBotics, Vrije Universiteit Brussel, Brussels, Belgium; Robotics and Multibody Mechanics Research Group, Vrije Universiteit Brussel and Flanders Make, Brussels, Belgium
| | - Bruno Tassignon
- BruBotics, Vrije Universiteit Brussel, Brussels, Belgium; Human Physiology and Sports Physiotherapy Research Group, Vrije Universiteit Brussel, Brussels, Belgium
| | - Dirk Lefeber
- BruBotics, Vrije Universiteit Brussel, Brussels, Belgium; Robotics and Multibody Mechanics Research Group, Vrije Universiteit Brussel and Flanders Make, Brussels, Belgium
| | - Carlos Rodriguez-Guerrero
- BruBotics, Vrije Universiteit Brussel, Brussels, Belgium; Robotics and Multibody Mechanics Research Group, Vrije Universiteit Brussel and Flanders Make, Brussels, Belgium
| | - Bart Roelands
- BruBotics, Vrije Universiteit Brussel, Brussels, Belgium; Human Physiology and Sports Physiotherapy Research Group, Vrije Universiteit Brussel, Brussels, Belgium
| | - Joost Geeroms
- BruBotics, Vrije Universiteit Brussel, Brussels, Belgium; Robotics and Multibody Mechanics Research Group, Vrije Universiteit Brussel and Flanders Make, Brussels, Belgium
| | - Romain Meeusen
- BruBotics, Vrije Universiteit Brussel, Brussels, Belgium; Human Physiology and Sports Physiotherapy Research Group, Vrije Universiteit Brussel, Brussels, Belgium
| | - Kevin De Pauw
- BruBotics, Vrije Universiteit Brussel, Brussels, Belgium; Human Physiology and Sports Physiotherapy Research Group, Vrije Universiteit Brussel, Brussels, Belgium.
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Dupuis F, Sole G, Mercier C, Roy JS. Impact of fatigue at the shoulder on the contralateral upper limb kinematics and performance. PLoS One 2022; 17:e0266370. [PMID: 35363812 PMCID: PMC8975159 DOI: 10.1371/journal.pone.0266370] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 03/18/2022] [Indexed: 12/03/2022] Open
Abstract
Background Altered movement patterns have been proposed as an etiological factor for the development of musculoskeletal pain. Fatigue influences upper limb kinematics and movement performance which could extend to the contralateral limb and potentially increasing risk of injury. The aim of this study was to investigate the impact of fatigue at the dominant arm on the contralateral upper limb movement. Methods Forty participants were randomly assigned to one of two groups: Control or Fatigue Group. All participants completed a reaching task at the baseline and post-experimental phase, during which they reached four targets with their non-dominant arm in a virtual reality environment. Following the baseline phase, the Fatigue Group completed a shoulder fatigue protocol with their dominant arm only, while the Control Group took a 10-minute break. Thereafter, the reaching task was repeated. Upper limb and trunk kinematics (joint angles and excursions), spatiotemporal (speed and accuracy) and surface electromyographic (sEMG) activity (sEMG signal mean epoch amplitude and median frequency of the EMG power spectrum) were collected. Two-way repeated-measures ANOVA were performed to determine the effects of Time, Group and of the interaction between these factors. Results There was a significant Time x Group interaction for sternoclavicular elevation range of motion (p = 0.040), movement speed (p = 0.043) and accuracy (p = 0.033). The Fatigue group showed higher contralateral sternoclavicular elevation and increased movement error while experiencing fatigue in the dominant arm. Moreover, the Control group increased their speed during the Post-experimental phase compared to baseline (p = 0.043), while the Fatigue group did not show any speed improvement. There was no EMG sign of fatigue in any of the muscles evaluated. Conclusion This study showed that fatigue at the dominant shoulder impacts movement at the contralateral upper limb. Such changes may be a risk factor for the development of shoulder pain in both the fatigued and non-fatigued limbs.
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Affiliation(s)
- Frédérique Dupuis
- Faculty of Medicine, Université Laval, Quebec City, Canada
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec City, Canada
| | - Gisela Sole
- Centre for Health, Activity and Rehabilitation Research, School of Physiotherapy, University of Otago, Dunedin, New Zealand
| | - Catherine Mercier
- Faculty of Medicine, Université Laval, Quebec City, Canada
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec City, Canada
| | - Jean-Sébastien Roy
- Faculty of Medicine, Université Laval, Quebec City, Canada
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec City, Canada
- * E-mail:
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7
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Grose G, Manzone DM, Eschelmuller G, Peters RM, Carpenter MG, Inglis JT, Chua R. The effects of eccentric exercise-induced fatigue on position sense during goal-directed movement. J Appl Physiol (1985) 2022; 132:1005-1019. [PMID: 35271409 DOI: 10.1152/japplphysiol.00177.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We investigated the impairment of position sense associated with muscle fatigue. In Exp. 1, participants performed learned eccentric extension (22 °/s) movements of the elbow as the arm was pulled through the horizontal plane without vision of the arm. They opened their closed right hand when they judged it to be passing through a target. Dynamic position sense was assessed via accuracy of limb position to the target at time of hand opening. Eccentric movements were performed against a flexion load (10% of flexion MVC). We investigated performance under conditions with and without biceps vibration, as well as before and after eccentric exercise. In Exp. 2, a motor was used to extend the participant's limb passively. We compared conditions with and without vibration of the lengthening but passive biceps, before and after exercise. In Exp. 1, vibration of the active biceps resulted in participants opening their hand earlier ( [95% CI] -5.52° [-7.40, -3.63]) compared to without vibration. Exercise reduced flexion MVCs by ~44%, and participants undershot the target more (-5.51° [-9.31, -1.70]) in the post-exercise block during control trials. Exercise did not influence the persistence of the vibratory illusion. In Exp. 2, vibration resulted in greater undershooting (-2.99° [-3.99, -1.98]) compared to without vibration, before and after exercise. Although exercise reduced MVCs by ~50%, the passive task showed no effects of exercise. We suggest that the CNS continues to rely on muscle spindles for limb position sense, even when they reside in a muscle exposed to fatiguing eccentric contractions.
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Affiliation(s)
- George Grose
- School of Kinesiology, University of British Columbia, Vancouver, Canada
| | | | - Gregg Eschelmuller
- School of Kinesiology, University of British Columbia, Vancouver, Canada
| | - Ryan M Peters
- Faculty of Kinesiology, The University of Calgary, Calgary, Canada
| | - Mark Gregory Carpenter
- School of Kinesiology, University of British Columbia, Vancouver, Canada.,Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada.,International Collaboration on Repair Discoveries, University of British Columbia, Vancouver, Canada
| | - J Timothy Inglis
- School of Kinesiology, University of British Columbia, Vancouver, Canada
| | - Romeo Chua
- School of Kinesiology, University of British Columbia, Vancouver, Canada
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Schmitzhaus VM, Oliveira WG, Almeida MBD. High-intensity effort impairs basketball free-throw shooting efficiency. MOTRIZ: REVISTA DE EDUCACAO FISICA 2022. [DOI: 10.1590/s1980-657420220000422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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9
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Dupuis F, Sole G, Wassinger C, Bielmann M, Bouyer LJ, Roy JS. Fatigue, induced via repetitive upper-limb motor tasks, influences trunk and shoulder kinematics during an upper limb reaching task in a virtual reality environment. PLoS One 2021; 16:e0249403. [PMID: 33831037 PMCID: PMC8031876 DOI: 10.1371/journal.pone.0249403] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 03/17/2021] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Efficient shoulder movement depends on the ability of central nervous system to integrate sensory information and to create an appropriate motor command. Various daily encountered factors can potentially compromise the execution of the command, such as fatigue. This study explored how fatigue influences shoulder movements during upper limb reaching. METHODS Forty healthy participants were randomly assigned to one of two groups: Control or Fatigue Group. All participants completed an upper limb reaching task at baseline and post-experimental, during which they reached four targets located at 90° of shoulder abduction, 90° external rotation at 90° abduction, 120° scaption, and 120° flexion in a virtual reality environment. Following the baseline phase, the Fatigue Group completed a shoulder fatigue protocol, while Controls took a 10-minute break. Thereafter, the reaching task was repeated. Upper limb kinematic (joint angles and excursions) and spatiotemporal (speed and accuracy) data were collected during the reaching task. Electromyographic activity of the anterior and middle deltoids were also collected to characterize fatigue. Two-way repeated-measures ANOVA were performed to determine the effects of Time, Group and of the interaction between these factors. RESULTS The Fatigue group showed decreased mean median power frequency and increased electromyographic amplitudes of the anterior deltoid (p < 0.05) following the fatigue protocol. Less glenohumeral elevation, increased trunk flexion and rotation and sternoclavicular elevation were also observed in the Fatigue group (Group x Time interaction, p < 0.05). The Control group improved their movement speed and accuracy in post-experimental phase, while the Fatigue group showed a decrease of movement speed and no accuracy improvement (Group x Time interaction, p < 0.05). CONCLUSION In a fatigued state, changes in movement strategy were observed during the reaching task, including increased trunk and sternoclavicular movements and less glenohumeral movement. Performance was altered as shown by the lack of accuracy improvement over time and a decrease in movement speed in the Fatigue group.
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Affiliation(s)
- Frédérique Dupuis
- Faculty of Medicine, Université Laval, Quebec City, Canada
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec City, Canada
| | - Gisela Sole
- Centre for Health, Activity and Rehabilitation Research, School of Physiotherapy, University of Otago, Dunedin, New Zealand
| | - Craig Wassinger
- Department of Physical Therapy, East Tennessee State University, Johnson City, TN, United States of America
| | - Mathieu Bielmann
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec City, Canada
| | - Laurent J. Bouyer
- Faculty of Medicine, Université Laval, Quebec City, Canada
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec City, Canada
| | - Jean-Sébastien Roy
- Faculty of Medicine, Université Laval, Quebec City, Canada
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Quebec City, Canada
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10
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Manzone DM, Tremblay L. Contributions of exercise-induced fatigue versus intertrial tendon vibration on visual-proprioceptive weighting for goal-directed movement. J Neurophysiol 2020; 124:802-814. [PMID: 32755335 DOI: 10.1152/jn.00263.2020] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
It has been argued that exercise-induced muscle fatigue and tendon vibration can alter proprioceptive estimates of limb position. While exercise-induced muscle fatigue may also affect central efferent processes related to limb position sense, tendon vibration specifically targets peripheral afferent signals. It is unclear, however, whether either of these perturbations (i.e., muscle fatigue or tendon vibration) can alter the multisensory weighting processes preceding goal-directed movements. The current study sought to specifically explore visual-proprioceptive weighting before or after eccentric exercise-induced antagonist muscle fatigue (experiment 1) versus with or without intertrial simultaneous agonist-antagonist tendon vibration (experiment 2). To assess sensory weighting, a visual-proprioceptive mismatch between the participant's actual initial starting position and the associated visual cursor position was employed. This method provides an estimate of the participant's reliance on the proprioceptive or visual starting limb position for their aiming movements. Although there was clear evidence of muscle fatigue, there was no systematic alteration of proprioceptive weighting after eccentric exercise and no relationship between sensory weighting and the level of fatigue. On the other hand, participants' reliance on their actual (proprioceptive) limb position was systematically reduced when exposed to agonist-antagonist tendon vibration before each aiming movement. These findings provide seminal evidence that intertrial tendon vibration, but not exercise-induced fatigue, can alter the reliability of proprioceptive estimates and the relative contributions of visual and proprioceptive information for goal-directed movement.NEW & NOTEWORTHY Previous work has used muscle fatigue or tendon vibration to perturb proprioceptive limb position estimates. This study sought to determine whether exercise-induced muscle fatigue versus intertrial tendon vibration can alter multisensory weighting for upper limb-aiming movements. By introducing a discrepancy between participants' actual proprioceptive and visual finger position, this study provides seminal evidence for the reduction of proprioceptive-to-visual weighting using intertrial tendon vibration but no evidence for a systematic reduction following exercise-induced fatigue.
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Affiliation(s)
- Damian M Manzone
- Perceptual Motor Behaviour Laboratory, Centre for Motor Control, Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada
| | - Luc Tremblay
- Perceptual Motor Behaviour Laboratory, Centre for Motor Control, Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada
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11
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Mugnosso M, Zenzeri J, Hughes CML, Marini F. Coupling Robot-Aided Assessment and Surface Electromyography (sEMG) to Evaluate the Effect of Muscle Fatigue on Wrist Position Sense in the Flexion-Extension Plane. Front Hum Neurosci 2019; 13:396. [PMID: 31736733 PMCID: PMC6838006 DOI: 10.3389/fnhum.2019.00396] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/22/2019] [Indexed: 11/13/2022] Open
Abstract
Proprioception is a crucial sensory modality involved in the control and regulation of coordinated movements and in motor learning. However, the extent to which proprioceptive acuity is influenced by local muscle fatigue is obscured by methodological differences in proprioceptive and fatiguing protocols. In this study, we used high resolution kinematic measurements provided by a robotic device, as well as both frequency and time domain analysis of signals captured via surface electromyography (sEMG) to examine the effects of local muscle fatigue on wrist proprioceptive acuity in 16 physically and neurologically healthy young adults. To this end, participants performed a flexion/extension ipsilateral joint position matching test (JPM), after which a high-resistive robotic task was used to induce muscle fatigue of the flexor carpi radialis (FCR) muscle. The JPM test was then repeated in order to analyze potential changes in proprioceptive acuity. Results indicated that the fatigue protocol had a significant effect on movements performed in flexion direction, with participants exhibiting a tendency to undershoot the target before the fatigue protocol (−1.218°), but overshooting after the fatigue protocol (0.587°). In contrast, in the extension direction error bias values were similar before and after the fatigue protocol as expected (pre = −1.852°, post = −1.237°) and reflected a tendency to undershoot the target. Moreover, statistical analysis indicated that movement variability was not influenced by the fatigue protocol or movement direction. In sum, results of the present study demonstrate that an individual’s estimation of wrist joint displacement (i.e., error bias), but not precision (i.e., variability), is affected by muscular fatigue in a sample of neurologically and physically healthy adults.
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Affiliation(s)
- Maddalena Mugnosso
- Motor Learning, Assistive and Rehabilitation Robotics Laboratory, Robotics, Brain and Cognitive Sciences Department, Istituto Italiano di Tecnologia, Genoa, Italy.,Department of Informatics, Bioengineering, Robotics and System Engineering, University of Genoa, Genoa, Italy
| | - Jacopo Zenzeri
- Motor Learning, Assistive and Rehabilitation Robotics Laboratory, Robotics, Brain and Cognitive Sciences Department, Istituto Italiano di Tecnologia, Genoa, Italy
| | - Charmayne M L Hughes
- NeuroTech Laboratory, Health Equity Institute, San Francisco State University, San Francisco, CA, United States
| | - Francesca Marini
- Motor Learning, Assistive and Rehabilitation Robotics Laboratory, Robotics, Brain and Cognitive Sciences Department, Istituto Italiano di Tecnologia, Genoa, Italy
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12
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Natural medicines for the treatment of fatigue: Bioactive components, pharmacology, and mechanisms. Pharmacol Res 2019; 148:104409. [DOI: 10.1016/j.phrs.2019.104409] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/21/2019] [Accepted: 08/21/2019] [Indexed: 02/07/2023]
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