Is rectus captis posterior muscle activity influenced by a prolonged forward head posture?

More Sarah Mingels's questions See All

Inpatient DBT to reduce parasuicidal behaviour?

Currently trying to obtain as many pieces of research as possible for my dissertation around the implementation of DBT within the inpatient unit for those with a diagnosis of BPD. Primarily...

23 February 2021 5,654 2 View

Which polarizers are usually used to measure the birefringence of zebrafish muscles?

I already found several publications on that topic, however, the specifications for the used filters are often missing. Some more specific information than "fish is placed between to polarizing...

23 February 2021 1,934 1 View

How can I add the metal oxide NP's to the cell lines? I have to make some drug and NP conjuhgates. How much concentration to use? Need some help?

Hi everyone. I am working on metal oxides. I need to make some conjugates of drugs and NP. But I am unsure of what concentrations to make. I have read some articles, but they haven't mentioned...

10 February 2021 3,372 2 View

Can I use a time series dependent variable in a panel regression?

Hi all Can I run a Gmm model with a time series dependent variable? I have a sample of 12 countries and years from 2000 to 2018

03 February 2021 6,491 6 View

the drug loaded nanoparticles?

Hi, I am new to this cancer cell lines field. My research is using the drug loaded nanoparticles and their effects on cancer cell lines. have a question regarding the drug loading. I have...

24 January 2021 8,258 3 View

How to calculate an endotoxin limit with a drug concentration in vp/mL?

Hello, I am trying to validate an endotoxin method for an excipient. I need to calculate my endotoxin limit. My excipient is 0.1% final product and the drug concentration is expressed in vp/mL....

20 January 2021 1,262 1 View

Is it possible to determine nitrogen concentration colorimetrically, using spectrophotometer in macroalgal tissue?

I'm trying to estimate total nitrogen content in seaweeds without using the Kjeldahl method. Thanks in advance

20 December 2020 9,190 2 View

Why is my passive reference dye (ROX) decreasing in fluorescence as my target (FAM) increases during qPCR?

I am running qPCR on eDNA samples from rivers and have found that the vast majority of my samples show a decrease in fluorescence in my passive reference dye (ROX) while my target dye (FAM)...

15 December 2020 723 4 View

Is it possible to trap air and convert it to plasma?

How can I trap air and then convert the trapped air into plasma?

06 December 2020 624 7 View

How to deal with missing data for Reliability Analysis?

Hi, I have a dataset with missing values. I want to do a reliability analysis with SPSS and then implement the data in Mplus. Mplus can handle missing data due to the FIML. I am unsure how to...

21 November 2020 4,658 3 View

Are there any open-source datasets containing physiological information about exercises to be used for an OR-model?

I have just recently started a new "weekend project" in addition to my master's studies and I am looking for a data-set. I would like to use some Operations Research to design an optimal gym...

22 February 2021 8,023 1 View

Staining methods for skeletal muscle fiber typing?

does anyone know the best method to differentiate and quantify rapid fatiguing and fatigue resistant muscle fibers? the old method form the 1980's uses ATP staining which is quite labor intense?

21 February 2021 6,483 3 View

Could someone help me troubleshoot my NOS assay protocol for skeletal muscle extracts, please?

I am trying to measure differences in eNOS activity in skeletal muscle in sedentary and exercised mice, following the conversion of 3H-arg to 3H-cit, and assaying the samples with and with out...

31 January 2021 8,324 1 View

What is the best way to minimize/prevent the effects of rigor mortis in excised mouse muscle?

I'm planning to excise mouse muscle to use for ex vivo mechanical testing. What is the best way to prevent the stiffening effects of rigor mortis from confounding results if I cannot isolate the...

30 January 2021 1,641 2 View

Need for help. What goes wrong with my differentiatio process of C2C12?

Hello, I'm now working on C2C12 myoblast cell line. Growing the cells was great, but there are some problems during differentiation process. The cells are not differentiating but frequently...

30 January 2021 9,535 2 View

Does anyone know a downloadable dataset for people sitting in front a webcam?

I am working on a ML project that recognize the posture using the webcam. So, i need a dataset of people sitting in front the webcam (studying, gaming, video calling...etc)

26 January 2021 5,652 3 View

Any good methods for double-stained markers quantifications from tissue sample using computer programs?

How can we best quantify double-stained markers when comparing diseased and control? For example, if we want to stain one marker of smooth muscle cells and compare the expression in diseased and...

21 December 2020 7,389 1 View

Vacuum freeze drying protocol in human skeletal muscle tissue methods, anyone?

I will be freeze-drying small skeletal muscle samples (~60mg) per sample using a Virtis SP Scientific Benchtop Pro Freeze Dryer. I've had difficulty findings a reference protocol to determine the...

21 November 2020 1,423 1 View

Does anyone know of a good PAX7 antibody for IF - not from the DSHB?

Hi, Although I would dearly love to obtain a PAX7 Ab from DSHB, it is not on our university ordering system (and it takes too long to add it). So I wondered if anyone had good experience of a PAX7...

03 November 2020 7,003 2 View

Is there some specific drug to induce injury only in muscle fibers without affecting peripheral nerves?

I would like to induce injury in skeletal muscle fibers to study muscle regeneration but I would like to preserve nerve terminals intact. Could it be possible? Is there some specific drug? Thank...

30 October 2020 9,077 4 View

Martin Hofmeister

Dear Sarah,

Maybe the following papers will help you:

Hallgren RC, Pierce SJ, Sharma DB, Rowan JJ. Forward Head Posture and Activation of Rectus Capitis Posterior Muscles. J Am Osteopath Assoc 2017;117(1):24-31. http://jaoa.org/article.aspx?articleid=2595722

Hallgren RC, Pierce SJ, Prokop LL, Rowan JJ, Lee AS. Electromyographic activity of rectus capitis posterior minor muscles associated with voluntary retraction of the head. Spine J 2014;14(1):104-12. http://www.sciencedirect.com/science/article/pii/S1529943013006864

Hallgren RC, Rowan JJ, Bai P, Pierce SJ, Shafer-Crane GA, Prokop LL. Activation of rectus capitis posterior major muscles during voluntary retraction of the head in asymptomatic subjects. J Manipulative Physiol Ther 2014;37(6):433-40. http://www.jmptonline.org/article/S0161-4754(14)00117-1/abstract

Best wishes from germany,

Martin

Sarah Mingels

Dear Martin,

Thanks a lot!

Kind regards,

Sarah