Cas Fuchs
@casfuchs.bsky.social
51 followers 38 following 13 posts
Assistant Professor @MaastrichtU.bsky.social / Expert Consultant Nutrition @TeamVismaLeaseaBike.com / Human Physiology | Muscle Metabolism | Sports Nutrition | Recovery Strategies
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casfuchs.bsky.social
3️⃣ Findings (2/2):

Sucrose (glucose+fructose) proved very effective for rapidly restoring liver glycogen

7T 13C-MRS validated vs biopsies, enabling accurate non-invasive tracking of glycogen
casfuchs.bsky.social
3️⃣ Findings (1/2):

Liver glycogen fully replenished in 6 h (and exceeded baseline) with sucrose 🚀

Muscle glycogen only ~70% restored after 12 h, even with high carb intake
casfuchs.bsky.social
2️⃣ Cyclists either:

1. Recovered fasted (water/tea only)

2. Consumed 10 g carbs/kg BM (sucrose drinks at 1.2 g/kg/h for 6 h + CHO meals)
casfuchs.bsky.social
New insights into glycogen recovery in endurance athletes 🧵

1️⃣ Our new study in The Journal of Physiology tested how muscle + liver glycogen recover after exhaustive cycling in well-trained cyclists.
casfuchs.bsky.social
•Prehabilitation, especially ahead of elective procedures, may improve physical reserve and support faster recovery.

The bottom line: Preventing muscle loss in the hospital requires a multimodal approach — combining smart nutrition, physical activity, and, if needed, NMES.
casfuchs.bsky.social
•Even light physical activity, such as walking or simple bed-to-chair transfers, can help preserve muscle mass by stimulating muscle protein synthesis.

•For patients unable to move voluntarily, neuromuscular electrical stimulation (NMES) has shown to preserve muscle mass.
casfuchs.bsky.social
Key takeaways:
•Physical inactivity and inadequate energy/protein intake are the primary drivers of muscle atrophy.

•Maintaining energy balance and aiming for 1–1.5 g of protein/kg/day can help mitigate muscle loss.
casfuchs.bsky.social
Our new brief review, published in Current Opinion in Clinical Nutrition and Metabolic Care, summarizes evidence-based strategies to preserve muscle mass during hospitalization.

Read the full review here:
journals.lww.com/co-clinicalnut…

Key takeaways ⬇️
https://journals.lww.com/co-clinicalnut…
casfuchs.bsky.social
Even short periods of bed rest can lead to rapid and significant muscle loss, contributing to reduced mobility, longer ICU stays, and increased risk of complications and mortality.
casfuchs.bsky.social
Illness or injury can affect any of us — and often results in hospitalization.

Yet the impact of hospital stays on muscle health is often underestimated.

⬇️
casfuchs.bsky.social
Our New study in EJSS!

2 weeks of bed rest causes ~5% leg muscle loss in healthy adults.

DXA, CT & MRI detect similar decline. MRI-based automated analysis offers a fast, reliable alternative to manual muscle quantification.

🔗 onlinelibrary.wiley.com/doi/10.1002/...

#musclehealth #MRI #research
Quantifying Leg Muscle Disuse Atrophy During Bed Rest Using DXA, CT, and MRI
This study evaluated whether dual-energy X-ray absorptiometry (DXA), computed tomography (CT), and magnetic resonance imaging (MRI) provide comparable outcomes in quantifying disuse-induced skeletal ...
onlinelibrary.wiley.com
Reposted by Cas Fuchs
expphysiol.bsky.social
Part of our free Thermal Physiology #ebook is this article from @casfuchs.bsky.social (@maastrichtu.bsky.social) et al., which investigates passive heat treatment effects on muscle tissue and protein synthesis!
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Download the e-book here:
buff.ly/3Wi2XyY