Achilles tendon displacement patterns during passive stretch and eccentric loading are altered in middle-aged adults
نویسندگان
چکیده
منابع مشابه
Intrinsic ankle stiffness during standing increases with ankle torque and passive stretch of the Achilles tendon
Individuals may stand with a range of ankle angles. Furthermore, shoes or floor surfaces may elevate or depress their heels. Here we ask how these situations impact ankle stiffness and balance. We performed two studies (each with 10 participants) in which the triceps surae, Achilles tendon and aponeurosis were stretched either passively, by rotating the support surface, or actively by leaning f...
متن کاملUnderstanding Achilles Tendinopathy and Tendon Rehabilitation through the Achilles Tendon Diametral Strain Response to Eccentric Exercise
We have previously demonstrated that eccentric exercise results in an immediate decrease in tendon thickness in healthy young adults [3]. Based on in vitro evidence, it was proposed that the marked diametral strain response (≈ 20%) observed in vivo primarily reflected the radial extrusion of fluid from the tendon [4, 5]. Such convective fluid movement likely plays a vital role in tendon homeost...
متن کاملAchilles tendon adaptation during strength training in young adults.
PURPOSE Tendons are specialized musculoskeletal structures responsible for transferring forces between muscles and bones. To maintain joint mechanics and structural integrity, tendons must adapt to changes in mechanical loading, but little is known about the interaction between muscle and tendon adaptations in vivo. We tested the hypothesis that tendons adapt to changes in muscle strength to ma...
متن کاملBiomechanical characteristics of the eccentric Achilles tendon exercise.
BACKGROUND Eccentric exercise has been shown to provide good short-term clinical results in the treatment of painful mid-portion chronic Achilles tendinopathies. However, the mechanisms behind the positive effects of eccentric rehabilitation regimes are not known, and research into the biomechanics of the exercise may improve our understanding. METHODS Sixteen healthy subjects performed one-l...
متن کاملComment on: "The mechanism for efficacy of eccentric loading in Achilles tendon injury: an in vivo study in humans".
OBJECTIVE Degenerative disorders of tendons present an enormous clinical challenge. They are extremely common, prone to recur and existing medical and surgical treatments are generally unsatisfactory. Recently eccentric, but not concentric, exercises have been shown to be highly effective in managing tendinopathy of the Achilles (and other) tendons. The mechanism for the efficacy of these exerc...
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ژورنال
عنوان ژورنال: Medical Engineering & Physics
سال: 2015
ISSN: 1350-4533
DOI: 10.1016/j.medengphy.2015.04.004