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94. Dr. Keith Baar - Rethinking Tendon Management, Treatment & Pathophysiology

94. Dr. Keith Baar - Rethinking Tendon Management, Treatment & Pathophysiology

FromSports Medicine Project


94. Dr. Keith Baar - Rethinking Tendon Management, Treatment & Pathophysiology

FromSports Medicine Project

ratings:
Length:
90 minutes
Released:
Nov 17, 2023
Format:
Podcast episode

Description

Dam! You're all going to love this!Welcome Dr Keith Baar. If you see tendons in clinic, you need to listen to this!What does Keith do? (In his own words)The goal of my laboratory is to understand the molecular determinants of musculoskeletal development and the role of exercise in improving health and performance. To achieve this goal, we work on muscle, tendon, and ligaments from 2- and 3-dimensional tissue culture, in vivo wild type and genetically modified animals, and humans. Of particular interest are: 1) the interplay between nutrition and exercise and the mammalian target of rapamycin complex 1 (mTORC1) in the maintenance of muscle mass; 2) the role of the amino acid transceptor LAT1 in the activation of protein synthesis and maintenance of muscle mass; 3) the mechanism of ER stress-induced loss of protein synthesis and how this leads to anabolic resistance in muscle; and 4) the role of growth factors and loading on the activation of the Egr-1 transcription factor and the development and mechanics of ligaments. Our laboratory discovered that mTORC1 was activated by resistance exercise and that this correlates with the degree of skeletal muscle hypertrophy. Since then, we have focused on mTORC1 and its regulation by loading and nutrients. We have shown that: 1) mTORC1 is activated directly by load in a growth factor-independent manner; 2) a1-AMPK regulates mTORC1 activity during overload; 3) following a high fat diet the unfolded protein response, through inhibition of PKB, can attenuate mTORC1 activation; and 4) muscle signaling and protein synthesis after exercise are modified by nutritional interventions that are rich in leucine. Our laboratory has also developed a number of 2- and 3-dimensional tissue culture assays that can be used to study the effects of genes and nutrients on muscle, tendon, and ligament function. These studies have a direct clinical application and we work closely with colleagues in orthopedics, internal medicine, and the cancer center to develop resistance exercise, nutritional, and novel small molecule interventions that prevent muscle wasting from cachexia and sarcopenia and improve muscle function and quality of life.https://www.daverenfrew.comUpgrade your clinical skills and become a patreon:https://patreon.com/SportsMedicineProject?utm_medium=clipboard_copy&utm_source=copyLink&utm_campaign=creatorshare_creator&utm_content=join_linkSign up for a free weekly Research review about topics related to Sports Medicine straight to your email: https://gmail.us14.list-manage.com/subscribe?u=c3dca95db0740390c605a128e&id=b41f1293caRead through our already written blogs:https://achievepodiatry.com.au
Released:
Nov 17, 2023
Format:
Podcast episode

Titles in the series (100)

Join Blake and Kelly as they delve into the fascinating world of Sports Medicine through their weekly podcast. As healthcare professionals, they aim to empower their listeners to become better clinicians, achieve better outcomes with patients, and improve their work-life balance. Expect engaging and informative discussions on topics such as injuries, Peptides, injections, running, performance, and more, all backed by the latest evidence. With Blake's extensive experience as a researcher, clinical educator, biomechanics lecturer, and podiatrist within a top sport medicine clinic, and Kelly's focus on performance rehabilitation as a physiotherapist in private practice, you'll get a well-rounded and insightful perspective on the complexities of healthcare. Whether you're a clinician, student, or just looking to improve your health knowledge, this podcast is designed to enhance your understanding of the dynamic field of Sports Medicine