Foam rolling effects on soft tissue tone, elasticity and stiffness in the time course of recovery after weight training

2019 ◽  
Vol 35 (2) ◽  
pp. 171-177 ◽  
Author(s):  
Jan Schroeder ◽  
Linda Lueders ◽  
Mike Schmidt ◽  
Klaus-Michael Braumann ◽  
Karsten Hollander
Keyword(s):  
Soft Tissue ◽  
Time Course ◽  
Weight Training ◽  
Foam Rolling

scholarly journals In Vitro Evaluation of the Sensitivity of a Hyaluronic Acid PEG Cross-Linked to Bovine Testes Hyaluronidase

2018 ◽  
Vol 6 (1) ◽  
pp. 20-24 ◽  
Author(s):  
Nicola Zerbinati ◽  
Torello Lotti ◽  
Damiano Monticelli ◽  
Virginia Martina ◽  
Giovanna Cipolla ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
Soft Tissue ◽  
Chemical Reaction ◽  
Time Course ◽  
Soft Tissue Augmentation ◽  
Facial Soft Tissue ◽  
Microplate Reader ◽  
Kinetics Of

Neauvia Intense is biocompatible, injectable hyaluronic acid (HA) filler PEG cross-linked for facial soft-tissue augmentation that provides volume to tissues. The aim of the present study is to evaluate the sensitivity of Neauvia Intense in hyaluronidase from bovine testes in a time-course analysis. The test is based on the colourimetric determination of the N-acetyl – D - glucosamine (NAG) released by the hyaluronidase in standardised conditions. The in vitro conditions involve the treatment of Neauvia Intense with a known concentration of the enzyme (6080U/ml). The NAG content was determined at different times to assess the kinetics of the degradation (1h, 3h, 6h, 24h, 48h, 72h, 120h, and 168h); the Ehrlich’s reagent was used for the colourimetric quantification, by the method described by Reissing and colleagues. The intensity of the violet colour developed after the chemical reaction was proportional to the NAG present in each sample. A microplate reader at 585 nm read the absorbance. The amount of NAG released by the product was proportional to the time of incubation with bovine hyaluronidase, reaching a plateau after 168 hours.

scholarly journals Human Neutrophil Granule Exocytosis in Response to Mycobacterium smegmatis

Pathogens ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 123
Author(s):  
Irina Miralda ◽  
Christopher K. Klaes ◽  
James E. Graham ◽  
Silvia M. Uriarte
Keyword(s):  
Soft Tissue ◽  
Human Neutrophil ◽  
Mycobacterium Smegmatis ◽  
Time Course ◽  
Proteolytic Enzymes ◽  
Early Time ◽  
Human Neutrophils ◽  
Phagocytic Cells ◽  
Granule Exocytosis ◽  
Single Donor

Mycobacterium smegmatis rarely causes disease in the immunocompetent, but reported cases of soft tissue infection describe abscess formation requiring surgical debridement for resolution. Neutrophils are the first innate immune cells to accumulate at sites of bacterial infection, where reactive oxygen species and proteolytic enzymes are used to kill microbial invaders. As these phagocytic cells play central roles in protection from most bacteria, we assessed human neutrophil phagocytosis and granule exocytosis in response to serum opsonized or non-opsonized M. smegmatis mc2. Although phagocytosis was enhanced by serum opsonization, M. smegmatis did not induce exocytosis of secretory vesicles or azurophilic granules at any time point tested, with or without serum opsonization. At early time points, opsonized M. smegmatis induced significant gelatinase granule exocytosis compared to non-opsonized bacteria. Differences in granule release between opsonized and non-opsonized M. smegmatis decreased in magnitude over the time course examined, with bacteria also evoking specific granule exocytosis by six hours after addition to cultured primary single-donor human neutrophils. Supernatants from neutrophils challenged with opsonized M. smegmatis were able to digest gelatin, suggesting that complement and gelatinase granule exocytosis can contribute to neutrophil-mediated tissue damage seen in these rare soft tissue infections.

scholarly journals DISPOSITION OF INTRAPERITONEALLY INJECTED CALCIUM-45 IN SUCKLING RATS

1958 ◽  
Vol 41 (4) ◽  
pp. 767-782 ◽  
Author(s):  
Felix Bronner
Keyword(s):  
Soft Tissue ◽  
Time Course ◽  
Specific Activity ◽  
Empirical Equations ◽  
Relative Order ◽  
Internal Organs ◽  
Suckling Rats ◽  
Old Rats ◽  
Tissue Compartments

The time course of the concentration of radiocalcium was studied in the serum, skeleton, pelt, muscles, and pooled internal organs of 10-day-old rats. Within 10 hours of injection, the specific activity of the tissue groups exceeded the specific activity of the serum and remained above it during the period studied (120 hours). Chemical and autoradiographic analyses showed how rapidly most of the injected Ca45 found its way into the skeleton. A model was constructed with the assumption that the skeleton constitutes an essentially irreversible reservoir for the tracer in a multicompartment system in which the blood is the central or feeding compartment. The rate of transfer of the tracer from the soft tissue compartments to the serum was calculated from the equation See PDF for Equation in which C = concentration in serum (expressed as a series of exponential terms) C' = concentration in a given soft tissue Substitution in the integrated form of this equation yielded equations which had the major properties of the empirical equations fitted to the experimental points. The relative order of transfer constants (k'–1) was: organs ≥ pelt > muscle.

scholarly journals Local and Non-local Effects of Foam Rolling on Passive Soft Tissue Properties and Spinal Excitability

2021 ◽  
Vol 12 ◽  
Author(s):  
Masatoshi Nakamura ◽  
Andreas Konrad ◽  
Ryosuke Kiyono ◽  
Shigeru Sato ◽  
Kaoru Yahata ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Soft Tissue ◽  
Medial Gastrocnemius ◽  
Plantar Flexors ◽  
Tissue Properties ◽  
Foam Rolling ◽  
Shear Elastic Modulus ◽  
Body Regions ◽  
Passive Torque ◽  
Spinal Excitability

In sports and clinical settings, roller massage (RM) interventions are used to acutely increase range of motion (ROM); however, the underlying mechanisms are unclear. Apart from changes in soft tissue properties (i.e., reduced passive stiffness), neurophysiological alterations such as decreased spinal excitability have been described. However, to date, no study has investigated both jointly. The purpose of this trial was to examine RM’s effects on neurophysiological markers and passive tissue properties of the plantar flexors in the treated (ROLL) and non-treated (NO-ROLL) leg. Fifteen healthy individuals (23 ± 3 years, eight females) performed three unilateral 60-s bouts of calf RM. This procedure was repeated four times on separate days to allow independent assessments of the following outcomes without reciprocal interactions: dorsiflexion ROM, passive torque during passive dorsiflexion, shear elastic modulus of the medial gastrocnemius muscle, and spinal excitability. Following RM, dorsiflexion ROM increased in both ROLL (+19.7%) and NO-ROLL (+13.9%). Similarly, also passive torque at dorsiflexion ROM increased in ROLL (+15.0%) and NO-ROLL (+15.2%). However, there were no significant changes in shear elastic modulus and spinal excitability (p > 0.05). Moreover, significant correlations were observed between the changes in DF ROM and passive torque at DF ROM in both ROLL and NO-ROLL. Changes in ROM after RM appear to be the result of sensory changes (e.g., passive torque at DF ROM), affecting both rolled and non-rolled body regions. Thus, therapists and exercise professionals may consider applying remote treatments if local loading is contraindicated.

The Effect of Foam Rolling Versus IASTM on Knee Range of Motion, Fascial Displacement, and Patient Satisfaction

2020 ◽  
pp. 1-8
Author(s):  
Michelle A. Sandrey ◽  
Cody Lancellotti ◽  
Cory Hester
Keyword(s):  
Patient Satisfaction ◽  
Soft Tissue ◽  
Range Of Motion ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Knee Extension ◽  
Iliotibial Band ◽  
Controlled Clinical Trial ◽  
Foam Rolling ◽  
Myofascial Release

Context: Soft tissue restrictions have been linked to poor flexibility and decreased range of motion (ROM). To decrease the soft tissue restrictions and ultimately increase ROM/flexibility, myofascial release techniques, such as foam rolling (FR) and instrument-assisted soft tissue mobilization (IASTM), have been used. However, the benefit regarding which technique is more beneficial remains unknown. Objective: To examine the effects of myofascial release techniques (FR vs the instrumented portion of IASTM) on knee joint ROM, rectus femoris (RF) and biceps femoris (BF) fascial displacement, and patient satisfaction. Design: Randomized controlled clinical trial. Setting: Mid-Atlantic University. Participants: Twenty moderately active participants (age 21.1 [2.0] y) with variable levels of soft tissue restriction in the quadriceps and hamstrings started and completed the study. Participants were randomly assigned to 2 groups, FR or IASTM. Interventions: All participants completed the same warm-up prior to the intervention. The FR group followed the proper FR protocol for gluteals/iliotibial band, quadriceps, and hamstrings/adductors, and the participants were monitored while the protocol was completed. The IASTM group received treatment on the gluteals/iliotibial band followed by the quadriceps, adductors, and hamstrings. Participants in both groups attended intervention sessions twice per week for 3 weeks. Prior to the start, knee ROM measurements were taken, along with fascial displacement measured via ultrasound. Upon completion of the study, posttest measurements were completed. A patient satisfaction survey was also administered at this time. Main Outcome Measures: Pretest to posttest knee ROM measurements, RF and BF fascial displacement, and patient satisfaction. Results: Both groups improved pretest to posttest for knee-extension ROM, with a slight trend toward increased knee-extension ROM for the FR group. Both groups improved pretest to posttest for BF and RF fascial displacement, in favor of the IASTM group for BF fascial displacement. Both groups were equally satisfied. Conclusions: As both groups improved pretest to posttest, either treatment could be used.

Biokinetics of Bone Tracers by Means of Deconvolution Analysis - Comparison of 99mTc MDP, 99mTc DPD and 99mTc EHDP

1982 ◽  
Vol 21 (04) ◽  
pp. 145-149
Author(s):  
P. Stritzke ◽  
E. Kröger ◽  
C. Schneider ◽  
G. Wasmus ◽  
J. Knop
Keyword(s):  
Soft Tissue ◽  
Time Course ◽  
Soft Tissues ◽  
Transfer Functions ◽  
Plasma Concentrations ◽  
Deconvolution Analysis ◽  
Transfer Rates ◽  
Extravascular Fluid ◽  
Late Transfer ◽  
The Difference

Transfer functions of 99mTc methylene diphosphonate (MDP), 99mTc 2,3-dicarboxypropane-l,l-diphosphonate (DPD) and 99mTc ethane-l-hydroxy-l,l-diphosphonate (EHDP) into bone and extravascular fluid of soft tissues were determined in 5 dogs by deconvolution analysis of the time-course of plasma, soft tissue and bone radioactivity. The transfer rates 5 min after injection - indicating the rapid exchange of the tracer between plasma and the extravascular fluid -decrease in the order MDP > EHDP > DPD (P < 0.05). The transfer rates into bone - determined from transfer rates between 30 and 60 min - decreased in a different order, i.e. MDP > DPD > EHDP (P<0.05). The fractional bone uptake of diphosphonates estimated from the ratio of early to late transfer rates was slightly greater for DPD than for MDP and EHDP respectively. The difference between DPD and MDP was not significant (P > 0.05). The average bone and soft tissue concentrations of DPD 60 min after injection were greater than that of MDP and EHDP due to different plasma concentrations (DPD > EHDP > MDP), whereas the bone-to-soft tissue ratios decreased in the sequence MDP > DPD > EHDP (P < 0.05). - Our results reveal different biokinetics of MDP, DPD and EHDP explaining variations in osseous and soft tissue uptake suggesting that deconvolution analysis could play an important role in bone scan interpretation.

scholarly journals Different patterns of pneumothorax in patients with soft tissue tumors treated with pazopanib: A case series analysis

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254866
Author(s):  
Hisaki Aiba ◽  
Hiroaki Kimura ◽  
Satoshi Yamada ◽  
Hideki Okamoto ◽  
Katsuhiro Hayashi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Soft Tissue ◽  
Time Course ◽  
Lung Tumor ◽  
Case Series ◽  
Metastatic Lesion ◽  
Soft Tissue Tumors ◽  
Visceral Pleura ◽  
Central Type ◽  
Metastatic Lesions

To investigate pneumothorax patterns in pazopanib treatment by focusing on the positional relationship between the visceral pleura and metastatic lung tumor, we examined 20 patients with advanced soft tissue tumors who developed lung metastases and underwent pazopanib treatment between 2012 and 2019. Pneumothorax was classified into two types based on the location of the metastatic lesion around the visceral pleural area before pazopanib treatment: subpleural type, within 5 mm from the pleura; and central type, >5 mm from the pleura. We investigated the rates of pneumothorax and the associated risk factors. Five patients experienced pneumothorax (three subpleural and two central types). Cavitation preceded pneumothorax in 83% of patients and led to connection of the cavitated cyst of the metastatic lesion to the chest cavity in the shorter term in patients with the subpleural type. Conversely, a more gradual increase in the cavity size and sudden cyst rupture were observed in the central type. The risk factors for pneumothorax were cavitation after initiating pazopanib and intervention before pazopanib, either ablation or surgery. The location of the metastatic lesions was not a risk factor for the occurrence of pneumothorax. In conclusion, pneumothorax is an adverse event associated with pazopanib treatment. Therefore, attention must be paid to predisposing factors such as the formation of cavitation after pazopanib initiation and previous interventions to the lungs. Moreover, because subpleural pneumothorax tends to occur earlier than the central type, a different time course can be anticipated based on the positional relationships of the metastatic lesions to the visceral pleura.

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