Effect of eccentric exercise on position sense at the human forearm in different postures

Walsh, Lee D.; Allen, Trevor James; Gandevia, Simon C.; Proske, Uwe

doi:10.1152/japplphysiol.01303.2005

Cited by 56 publications

(49 citation statements)

References 24 publications

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“…Walsh et al (2006) tested the ability to match forearm position before and after a repetitive eccentric elbow extension movement at 30 % of maximum voluntary contraction (MVC) and found that the task arm had systematically more elbow flexion than the reference arm. In contrast, repetitive 10-s isometric elbow flexor contractions at 30 % MVC and repetitive eccentric flexion and extension movements performed to fatigue lead to position errors in the direction of extension (Tsay et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Neck muscle fatigue alters upper limb proprioception

2015

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Limb proprioception is an awareness by the central nervous system (CNS) of the location of a limb in three-dimensional space and is essential for movement and postural control. The CNS uses the position of the head and neck when interpreting the position of the upper limb, and altered input from neck muscles may affect the sensory inputs to the CNS and consequently may impair the awareness of upper limb joint position. The purpose of this study was to determine whether fatigue of the cervical extensors muscles (CEM) using a submaximal fatigue protocol alters the ability to recreate a previously presented elbow angle with the head in a neutral position. Twelve healthy individuals participated. CEM activity was examined bilaterally using surface electromyography, and kinematics of the elbow joint was measured. The fatigue protocol included an isometric neck extension task at 70 % of maximum until failure. Joint position error increased following fatigue, demonstrating a significant main effect of time (F 2, 18 = 19.41, p ≤ 0.0001) for absolute error. No significant differences were found for variable error (F 2, 18 = 0.27, p = 0.76) or constant error (F 2, 18 = 1.16 of time, p ≤ 0.33). This study confirms that fatigue of the CEM can reduce the accuracy of elbow joint position matching. This suggests that altered afferent input from the neck subsequent to fatigue may impair upper limb proprioception.

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Section: Introductionmentioning

confidence: 99%

Neck muscle fatigue alters upper limb proprioception

2015

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“…However, we need to emphasize again that our protocol was relatively mild in intensity. Interestingly, several studies have reported errors in the matching of force and position with elbow flexors immediately after eccentric exercise (34,35,45). Such errors point to a disturbance in proprioception and indicate a change in motor control during submaximal force tasks.…”

Section: Discussionmentioning

confidence: 99%

Gender Differences after Downhill Running for Voluntary Isometric Contractions of Knee Extensor Muscles using Surface EMG

Willems¹,

Northcott²

2009

Medicina Sportiva

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Introduction: We examined gender differences for performance and surface electromyograms (sEMG) of knee extensors 1hr after downhill running.Methods After downhill running, MVIF deficits were similar (males: 11.7±7.2%, females: 7.5±7.7%) with no changes in endurance times during 50%MVIF. After the downhill run, there was a trend in females, but not males, of an increased ratio for the root mean square (RMS) values of the VL and VM muscles during MVIF testing by 23% (P=0.054). After the downhill run, females, but not males, lowered during 50%MVIF the change in RMS for VM from 48±32% to 30±31% and for VL from 36±23% to 21±18% (P<0.05). For males, a trend was observed for the change in median frequency in VL during 50%MVIF (P=0.05). After downhill running, females, altered the vastus medialis and vastus lateralis contributions to maximal isometric force production and the activity pattern of these muscles during submaximal isometric fatigue.Conclusion: Acute neuromuscular adaptations after downhill running occur during voluntary isometric contractions of knee extensor muscles in females, but not in males.

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“…The available evidence suggests that subjects are not as accurate in forearm matching in the horizontal plane compared with the vertical plane. 77 Furthermore, in the horizontal plane, muscle fatigue does not introduce additional position errors. This suggests that an effort sensation, as such, does not contain positional information for movements in the horizontal plane.…”

Section: Position Sensementioning

confidence: 99%

“…This suggests that an effort sensation, as such, does not contain positional information for movements in the horizontal plane. 77 Recent experiments on position sense with loaded arms suggest that a centrally generated signal does manifest itself in the horizontal plane, but only if the load is moved by the subject (Ansems, Allen, and Proske, unpublished observations).…”

Section: Position Sensementioning

confidence: 99%

Kinesthesia: The role of muscle receptors

Proske

2006

Muscle and Nerve

169

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The kinesthetic sense, the sense of position and movement of our limbs, has been the subject of speculation for more than 400 years. The present-day view is that it is signaled principally by muscle spindles, with a subsidiary role played by skin and joint receptors. The problem with muscle spindles as position sensors is that they are able to generate impulses in response to muscle length changes as well as from fusimotor activity. The central nervous system must be able to distinguish between activity from the two sources. Recent observations on position sense after fatigue and during load-bearing suggest that an additional source of kinesthetic information comes from a centrally generated sensation, the sense of effort. This has consequences for kinesthesia in the presence of the force of gravity. A contribution from central feedback mechanisms to the sense of effort is relevant to certain clinical conditions.

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Effect of eccentric exercise on position sense at the human forearm in different postures

Abstract: Effect of eccentric exercise on position sense at the human forearm in different postures.

Cited by 56 publications

References 24 publications

Neck muscle fatigue alters upper limb proprioception

Neck muscle fatigue alters upper limb proprioception

Gender Differences after Downhill Running for Voluntary Isometric Contractions of Knee Extensor Muscles using Surface EMG

Kinesthesia: The role of muscle receptors

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