Condition: Osteoporosis Postmenopausal · Sponsor: Istanbul Physical Medicine Rehabilitation Training and Research Hospital
Weight-bearing exercises (e.g., running, jumping, whole-body vibration) are widely practiced due to their beneficial effects on bone development and their role in the prevention and treatment of osteoporosis. However, the underlying neuroregulatory mechanisms responsible for these positive effects have not yet been fully understood. Two main neuromodulatory mechanisms have been proposed in the literature: (i) spinal reflexes originating from muscle spindles (stretch reflex, tonic vibration reflex), and (ii) the bone myoregulation reflex (BMR) based on load-sensitive osteocytes. It is well established that increased voluntary contraction and the associated rise in background EMG activity, that is, motor neuron pool activity, enhance muscle spindle-based reflex responses (such as the H-reflex and tendon reflex). In contrast, it has been demonstrated that the H-reflex is suppressed during bone-loading activities such as single-leg stance, jumping, or whole-body vibration. This study is based on two hypotheses: * As mechanical loading increases, Ia inhibitory effects intensify, leading to greater H-reflex suppression. * During whole-body vibration, the H-reflex is suppressed due to Ia inhibition. If this inhibition originates from load-sensitive receptors-osteocytes-and thus from the BMR, then in osteoporosis, where osteocyte number and function are reduced, H-reflex suppression will be diminished. The aim of this research is to test these hypotheses. Confirmation of these a…
This description comes directly from the study's public registry record.
Fuat Orhun Alayoğlu, Attending doctor · +905348431984 · f.orhunalayoglu@gmail.com
İlhan Karacan, Prof. Dr. · +905327005361 · mdkaracanilhan@gmail.com
Always discuss trial participation with your own doctor first.
| Istanbul Physical Medicine Rehabilitation Training & Research Hospital | Bahçelievler, Istanbul, Turkey (Türkiye) | Recruiting |
Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.
We email about this public record only. Unsubscribe anytime with one click. Never medical advice.
This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.
Source record: clinicaltrials.gov/study/NCT07253493