Sports Science Technology
Jem Arnold
Jem Arnold

@jem_arnold

11 tweets 19 reads Feb 14, 2024
X
Muscle Oximetry in Sports Science: An Updated Systematic Review
from @EuroMov @Marconirs52
Current trends in #NIRS #muscleoxygenation use in sport & exercise scienceπŸ¦΅πŸ«˜πŸ”¦
A quick summary of some of the bits I find most interesting 🧡/10
link.springer.com
Muscle Oximetry in Sports Science: An Updated Systematic Review from @EuroMov @Marconirs52 Current...
Muscle Oximetry in Sports Science: An Updated Systematic Review
link.springer.com/article/10.100…

Muscle Oximetry in Sports Science: An Updated Systematic Review

Sports Medicine - In the last 5Β years since our last systematic review, a significant number of arti...
Wearable NIRS are the most popular devices being used, suggesting interest for application in real-world sport settings
The trade-off is technical limitations to signal interpretation: CW-NIRS signals are **relative** and difficult to compare between athletes. However, ...
2/
Wearable NIRS are the most popular devices being used, suggesting interest for application in real-w...
We demonstrated that πŸ”΅SmOβ‚‚ shows good test-retest reliability comparable to πŸ”΄HR and 🟣VΜ‡Oβ‚‚, higher than 🟠[BLa] & 🟒RPE
And may compliment traditional measures to show real-time internal training load in cycling
3/
We demonstrated that πŸ”΅SmOβ‚‚ shows good test-retest reliability comparable to πŸ”΄HR and 🟣VΜ‡Oβ‚‚, higher th...
A popular use of NIRS is to detect local breakpoints, which are related *but not synonymous with* systemic metabolic "thresholds"
NIRS can't replace systemic thresholds. It's giving us orthogonal information which can add to our understanding. "yes, and" not "either, or"
4/
A popular use of NIRS is to detect local breakpoints, which are related *but not synonymous with* sy...
We compared ventilatory threshold (RCP) to NIRS deoxy-BP in the VL & deltoid, and found no differences in group mean
But more importantly *large* within-individual variation
I posted a thread on a recent systematic review of NIRS-BP overall
5/
A promising application that avoids issues with absolute NIRS values is to interpret *kinetics* - rates of change during exercise across intensity
The direction of NIRS slopes tells us something about the balance of Oβ‚‚ delivery and Oβ‚‚ uptake
6/
A promising application that avoids issues with absolute NIRS values is to interpret *kinetics* - ra...
The β€œcritical oxygenation” method may give us a physiological model for *local* maximal metabolic steady state
NIRS responds proportionally to intensity x duration
7/
DOI: 10.1152/japplphysiol.00706.2022
The β€œcritical oxygenation” method may give us a physiological model for *local* maximal metabolic st...
It might not necessarily be the primary working muscle that shows the most sensitive oxygenation slopes
We have some unpublished work hypothesising that NIRS on lumbar paraspinals (postural stabilisers) might be predictive of time to exhaustion πŸ€”
8/
sparecycles.blog
Predicting Cycling Time To Exhaustion from Paraspinals Muscle Oxygenation
sparecycles.blog/2021/10/19/pre…

Predicting Cycling Time To Exhaustion from Paraspinals Muscle Oxygenation

Our hypothesis is that the linear extrapolation of PS SmO2 during the work stage can predict time to...
We have some work hopefully coming soon 🀞looking at NIRS reoxygenation kinetics across multiple muscle sites
Reoxygenation is faster in higher priority muscles
Working + accessory muscles together may tell us about local contributions/limitations to systemic performance
9/
We have some work hopefully coming soon 🀞looking at NIRS reoxygenation kinetics across multiple musc...
NIRS can be useful, but like any of our training gadgets, NIRS isn’t magicπŸ§™β€β™‚οΈ
Feedback from muscle oxygenation can help us learn to trust our sensations, if we understand the broader context
More detail in the article. Very worth a read! 10/10
Oh ya, I wrote another summary thread for NIRS in sport science a year and a half ago, with relevant literature

Categories

Sports Science Technology

Some tweets missing

Telegram Bot
Unroll threads via Telegram! Send any X link to our bot.
@rattibha_bot

Report this thread