BIOMIMETIC SPONGES IMPROVE FUNCTIONAL MUSCLE RECOVERY FOLLOWING COMPOSITE TRAUMA

2021 ◽  
Author(s):  
Andrew Dunn ◽  
Gabriel Haas ◽  
Joshua Madsen ◽  
Natalia Ziemkiewicz ◽  
Jeffrey Au ◽  
...  
Keyword(s):  
Muscle Recovery

Nerve Graft Length and Recovery of Elbow Flexion Muscle Strength in Patients With Traumatic Brachial Plexus Injuries: Case Series

2021 ◽  
Author(s):  
Mariano Socolovsky ◽  
Gilda di Masi ◽  
Gonzalo Bonilla ◽  
Ana Lovaglio ◽  
Kartik G Krishnan
Keyword(s):  
Brachial Plexus ◽  
Case Series ◽  
Target Function ◽  
Elbow Flexion ◽  
Nerve Graft ◽  
Spinal Accessory Nerve ◽  
Accessory Nerve ◽  
Nerve Reconstruction ◽  
Muscle Recovery ◽  
Spinal Accessory

Abstract BACKGROUND Traumatic brachial plexus injuries cause long-term maiming of patients. The major target function to restore in complex brachial plexus injury is elbow flexion. OBJECTIVE To retrospectively analyze the correlation between the length of the nerve graft and the strength of target muscle recovery in extraplexual and intraplexual nerve transfers. METHODS A total of 51 patients with complete or near-complete brachial plexus injuries were treated with a combination of nerve reconstruction strategies. The phrenic nerve (PN) was used as axon donor in 40 patients and the spinal accessory nerve was used in 11 patients. The recipient nerves were the anterior division of the upper trunk (AD), the musculocutaneous nerve (MC), or the biceps branches of the MC (BBs). An index comparing the strength of elbow flexion between the affected and the healthy arms was correlated with the choice of target nerve recipient and the length of nerve grafts, among other parameters. The mean follow-up was 4 yr. RESULTS Neither the choice of MC or BB as a recipient nor the length of the nerve graft showed a strong correlation with the strength of elbow flexion. The choice of very proximal recipient nerve (AD) led to axonal misrouting in 25% of the patients in whom no graft was employed. CONCLUSION The length of the nerve graft is not a negative factor for obtaining good muscle recovery for elbow flexion when using PN or spinal accessory nerve as axon donors in traumatic brachial plexus injuries.

scholarly journals Effect of a leucine-enriched essential amino acids mixture on muscle recovery

2019 ◽  
Vol 31 (1) ◽  
pp. 95-101
Author(s):  
Yasushi Matsui ◽  
Shoji Takayanagi ◽  
Takuya Ohira ◽  
Masahiro Watanabe ◽  
Hiroki Murano ◽  
...  
Keyword(s):  
Amino Acids ◽  
Essential Amino Acids ◽  
Muscle Recovery

Muscle recovery in the lower limbs in poliomyelitis

1968 ◽  
Vol 35 (4) ◽  
pp. 173-179 ◽  
Author(s):  
K. Natarajan ◽  
J. B. Joshi ◽  
B. P. Yadav
Keyword(s):  
Lower Limbs ◽  
Muscle Recovery

Does chocolate milk aid in muscle recovery after endurance training?

2019 ◽  
Vol 22 (6) ◽  
pp. 20-20
Author(s):  
Tyler Robertson ◽  
Nathan Hastings ◽  
Julia Fashner
Keyword(s):  
Endurance Training ◽  
Chocolate Milk ◽  
Muscle Recovery

scholarly journals Could whole-body cryotherapy (below −100°C) improve muscle recovery from muscle damage?

2014 ◽  
Vol 5 ◽  
Author(s):  
Joao B. Ferreira-Junior ◽  
Martim Bottaro ◽  
Jeremy P. Loenneke ◽  
Amilton Vieira ◽  
Carlos A. Vieira ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Whole Body ◽  
Muscle Recovery ◽  
Whole Body Cryotherapy

scholarly journals Molecular Targets of Androgen Signaling that Characterize Skeletal Muscle Recovery and Regeneration

2015 ◽  
Vol 13 (1) ◽  
pp. nrs.13005 ◽  
Author(s):  
James G. MacKrell ◽  
Benjamin C. Yaden ◽  
Heather Bullock ◽  
Keyue Chen ◽  
Pamela Shetler ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Molecular Targets ◽  
Gene Signature ◽  
Muscle Recovery ◽  
In Vivo Models ◽  
Adult Skeletal Muscle ◽  
Injury Model ◽  
Androgen Regulation

The high regenerative capacity of adult skeletal muscle relies on a self-renewing depot of adult stem cells, termed muscle satellite cells (MSCs). Androgens, known mediators of overall body composition and specifically skeletal muscle mass, have been shown to regulate MSCs. The possible overlapping function of androgen regulation of muscle growth and MSC activation has not been carefully investigated with regards to muscle regeneration. Therefore, the aim of this study was to examine coinciding androgen-mediated genetic changes in an in vitro MSC model and clinically relevant in vivo models. A gene signature was established via microarray analysis for androgen-mediated MSC engagement and highlighted several markers including follistatin (FST), IGF-1, C-X-C chemokine receptor 4 (CXCR4), hepatocyte growth factor (HGF) and glucocorticoid receptor (GR/Nr3c1). In an in vivo muscle atrophy model, androgen re-supplementation significantly increased muscle size and expression of IGF-1, FST, and HGF, while significantly decreasing expression of GR. Biphasic gene expression profiles over the 7-day re-supplementation period identifed temporal androgen regulation of molecular targets involved in satellite cell engagement into myogenesis. In a muscle injury model, removal of androgens resulted in delayed muscle recovery and regeneration. Modifications in the androgen signaling gene signature, along with reduced Pax7 and MyoD expression, suggested that limited MSC activation and increased inflammation contributed to the delayed regeneration. However, enhanced MSC activation in the androgen-deplete mouse injury model was driven by an androgen receptor (AR) agonist. These results provide novel in vitro and in vivo evidence describing molecular targets of androgen signaling, while also increasing support for translational use of AR agonists in skeletal muscle recovery and regeneration.

Whole Body Periodic Acceleration Improves Muscle Recovery after Eccentric Exercise

2016 ◽  
Vol 48 (8) ◽  
pp. 1485-1494 ◽  
Author(s):  
JOSÉ RAFAEL LÓPEZ ◽  
ALFREDO MIJARES ◽  
JUAN KOLSTER ◽  
CARLOS HENRÍQUEZ-OLGUÍN ◽  
RUI ZHANG ◽  
...  
Keyword(s):  
Eccentric Exercise ◽  
Whole Body ◽  
Muscle Recovery ◽  
Periodic Acceleration

scholarly journals Effects of Muscle Fatigue and Recovery on Complexity of Surface Electromyography of Biceps Brachii

Entropy ◽  
2021 ◽  
Vol 23 (8) ◽  
pp. 1036
Author(s):  
Fuyuan Liao ◽  
Xueyan Zhang ◽  
Chunmei Cao ◽  
Isabella Yu-Ju Hung ◽  
Yanni Chen ◽  
...  
Keyword(s):  
Muscle Fatigue ◽  
Surface Electromyography ◽  
Biceps Brachii ◽  
Cupping Therapy ◽  
Nonlinear Method ◽  
Muscle Recovery ◽  
Sham Control ◽  
Semg Signal ◽  
Relative Change ◽  
Semg Signals

This study aimed to investigate the degree of regularity of surface electromyography (sEMG) signals during muscle fatigue during dynamic contractions and muscle recovery after cupping therapy. To the best of our knowledge, this is the first study assessing both muscle fatigue and muscle recovery using a nonlinear method. Twelve healthy participants were recruited to perform biceps curls at 75% of the 10 repetitions maximum under four conditions: immediately and 24 h after cupping therapy (−300 mmHg pressure), as well as after sham control (no negative pressure). Cupping therapy or sham control was assigned to each participant according to a pre-determined counter-balanced order and applied to the participant’s biceps brachii for 5 min. The degree of regularity of the sEMG signal during the first, second, and last 10 repetitions (Reps) of biceps curls was quantified using a modified sample entropy (Ems) algorithm. When exercise was performed immediately or 24 h after sham control, Ems of the sEMG signal showed a significant decrease from the first to second 10 Reps; when exercise was performed immediately after cupping therapy, Ems also showed a significant decrease from the first to second 10 Reps but its relative change was significantly smaller compared to the condition of exercise immediately after sham control. When exercise was performed 24 h after cupping therapy, Ems did not show a significant decrease, while its relative change was significantly smaller compared to the condition of exercise 24 h after sham control. These results indicated that the degree of regularity of sEMG signals quantified by Ems is capable of assessing muscle fatigue and the effect of cupping therapy. Moreover, this measure seems to be more sensitive to muscle fatigue and could yield more consistent results compared to the traditional linear measures.

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