Response to Tendon Vibration Questions the Underlying Rationale of Proprioceptive Training

Lubetzky, Anat V.; McCoy, Sarah Westcott; Price, Robert; Kartin, Deborah

doi:10.4085/1062-6050-52.1.06

Cited by 8 publications

(4 citation statements)

References 49 publications

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“…Based on the mechanism, these injuries frequently involve the lateral ankle structures, may cause pain and swelling of the ankle joint, and commonly result in aberrant joint kinematics 3 . Ankle sprains are frequently viewed as basic injuries not requiring treatment 6 . Unfortunately, the lack of proper rehabilitation can potentially result in successive sprains, which may progress to chronic pain and joint instability 7 .…”

Section: Resultsmentioning

confidence: 99%

“…To maintain normal postural control, several “perceptual-motor” processes must occur. The body's ability to sense position relies on somatosensory, visual, and vestibular functions that process sensory input to select an appropriate motor response to maintain body position and equilibrium 6 . Furthermore, the ankle plays an integral role in maintaining the body's COM and postural stability and is considered one of the most critical joints in the body 19 .…”

Section: Discussionmentioning

confidence: 99%

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Therapeutic Approach in the Reduction of Chronic Ankle Instability Risk in Adults

Bryson

2022

JBJS Journal of Orthopaedics for Physician Assistants

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Ankle sprains are common injuries in healthy, active adults, especially those engaging in athletics or high-intensity training. Research assessing the effects and sequelae of sustained index ankle sprains demonstrates a high risk of subsequent injuries, leading to chronic ankle instability. Numerous studies have isolated risk factors and mitigation techniques, altering the progression of instability and decreased performance associated with ankle injuries. Enrollment in adequate early rehabilitation programs focused on the restoration of joint biomechanics and sensorineural control is essential in minimizing instability progression. The biomechanics, evaluation, special testing, and progressive spectrum of nonsurgical and surgically invasive treatment options are discussed.Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/JBJSJOPA/A162).

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Therapeutic Approach in the Reduction of Chronic Ankle Instability Risk in Adults

Bryson

2022

JBJS Journal of Orthopaedics for Physician Assistants

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“…This false proprioceptive signal is interpreted as a forward fall and a backward postural reaction occurs to maintain balance. The VIB-PR approach was used for the past decade to investigate mechanisms involved in sensorimotor processing and postural control [ 3 , 4 ], and how these mechanisms can be altered by ageing [ 5 , 6 ], neurological [ 7 ] or musculoskeletal conditions [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Distinctive phases and variability of vibration-induced postural reactions highlighted by center of pressure analysis

et al. 2023

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Background The vibration-induced postural reaction paradigm (VIB-PR) offers a unique way for investigating sensorimotor control mechanisms. Measures of VIB-PR are usually calculated from the whole VIB period, yet recent evidence proposed that distinctive mechanisms are likely at play between the early vs. later phases of the postural reaction. Objectives The present work verified if spatiotemporal analyses of center of pressure (COP) displacements can detect differences between these early/later phases of VIB-PR. Also, we further characterized the intra/inter-individual variability of COP measurements, since the underlying variability of VIB-PR remains largely unexplored. Methods Twenty young volunteers realized two experimental conditions of bipodal stance with eyes closed: (i) bilateral VIB of tibialis anterior (TIB) and (ii) Achilles’ (ACH) tendons. Each condition consisted of five trials and lasted 30 s as follows: 10 s baseline, 10 s VIB and 10 s post-VIB. Linear COP variables (antero-posterior (AP) amplitude & velocity) were computed for both VIB and post-VIB periods using the following time-windows: early 2 s, the later 8 s and the whole 10 s duration. Intra- and inter-individual variability were respectively estimated using the standard error of the measurement and the coefficient of variation. Both variability metrics were obtained using five vs. the first three trials. Results Significant contrasts were found between time-windows for both VIB and post-VIB periods. COP variables were generally higher during the early 2 s phase compared to the later 8 s phase for both TIB [mean difference between 8 s– 2 s phases: Amplitude AP = -1.11 ± 1.14 cm during VIB and -2.99 ± 1.31 during post-VIB; Velocity AP = -1.17 ± 0.86 cm/s during VIB and -3.13 ± 1.31 cm/s during post-VIB] and ACH tendons [Amplitude AP = -0.37 ± 0.98 cm during VIB and -3.41 ± 1.20 during post-VIB; Velocity AP = -0.31 ± 0.59 cm/s during VIB and -3.89 ± 1.52 cm/s during post-VIB]. Most within- and between-subject variability scores were below 30% and using three instead of five trials had no impact on variability. VIB-PR patterns were quite similar within a same person, but variable behaviors were observed between individuals during the later phase. Conclusion Our study highlights the relevance of identifying and separately analyzing distinct phases within VIB-PR patterns, as well as characterizing how these patterns vary at the individual level.

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“…So, if the vibrations affecting the Achilles tendon can alter an athlete's static and dynamic posture, proprioception and reaction times, then stabilizing the calf becomes a very important preventive factor and is linked with more than just performance [12][13][14][15]. One of the factors generating the vibrations is the landing phase during running and therefore the contact of the foot with the ground.…”

Section: Introductionmentioning

confidence: 99%

"Preventative Aspects of Muscle Displacement in the Running Athlete"

Sergio¹

2021

BJSTR

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In respect to human movement, especially at high intensities, the body is subjected to vibratory phenomena that can have an influence in the aspects of prevention and performance. This is mainly due to the fact that the human body is endowed with good elasticity along with a good capacity for elastic reuse, unlike the hard and inelastic surfaces and structures with which it often comes in contact with. The impact or the meeting between two different structures from the point of view of both the elasticity and the ability to deform determines the vibrations that are transmitted on the more elastic structures in the form of waves with amplitude and frequency, forcing the latter to find a way to dampen them with the aim of reducing the "noise" in the system. An example of this is the runner who, by running on a more rigid surface, can experience vibrational forces up to 4-5 times his or her body weight, starting in the lower extremities, at each landing phase, and consequently increasing exponentially in those structures that are close to the contact areas. A negative consequence from this type of running can be seen visually with the discoloration in the calf musculature and is suggested that the increase of vibrations during impact with ground may be one of the causes of retrocalcaneal exostosis, or Haglund Syndrome.Haglund's deformity is an abnormality of the bone and soft tissues of the foot. An enlargement of the bony section of the heel [where the Achilles tendon is inserted] triggers this condition. The etiology is unknown, but other suggested causes than increase in vibrations during impact with the ground is a tight Achilles tendon, and or an accentuated arch of the foot. According to the latest research, women are more affected than men, and more often than not it is bilateral. Haglund syndrome is diagnosed with ultrasound and radiographic examination, pain on palpation, redness in the heel area, joint stiffness in the ankle. Treatment of Hanglund syndrome is often conservative, surgery is often not the best route. The use of specific orthoses, physiotherapy, a correct biomechanical evaluation can prevent this syndrome. This syndrome, as with other injuries incurred by runners due to increase vibrations during impact is the focus on this study.Eleven runners were tested on treadmills at submaximal speed, with footage taken on the calves at high speed [1000 frames per second] and their movements analysed during the landing or impact phase on the ground. The comparison was made between two graduated compression stockings, with one compression stocking having two silkscreened strips of silicone on the calf to stabilize the muscle. The latter socks data pointed to a 0.3 cm improvement in terms of calf movement reduction with the runners analysed [1,2].

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Response to Tendon Vibration Questions the Underlying Rationale of Proprioceptive Training

Cited by 8 publications

References 49 publications

Therapeutic Approach in the Reduction of Chronic Ankle Instability Risk in Adults

Therapeutic Approach in the Reduction of Chronic Ankle Instability Risk in Adults

Distinctive phases and variability of vibration-induced postural reactions highlighted by center of pressure analysis

"Preventative Aspects of Muscle Displacement in the Running Athlete"

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