[RESEARCH] Effects of Sleep on Muscle Recovery

Affects of Sleep on Muscle Recovery - themanualtherapist.com

Effects of Sleep on Muscle Recovery

INTRO:
Sleep is known to impact several physiological factors, including:

Glucose.
Lipid metabolism
Blood pressure
Eating behavior
Energy metabolism
Hormonal secretion
Immune system

Sleep has also been consistently linked to exercise performance. However little is known about the role of sleep in muscle recovery.

Dattilo et al. (2020), evaluated:

Recovery kinetics of the peak isometric force
Profiles of hormones and cytokines during 48 h of total sleep deprivation followed by 12 h of sleep after an eccentric exercise-induced muscle damage (EEIMD) protocol

METHODS:

DEPRIVATION GROUP:
“muscle damage” protocol was followed by 48 h of total sleep deprivation and 12 h of normal

SLEEP GROUP:

same muscle damage protocol, followed by three nights of regular sleep.
Isometric muscle voluntary contraction tests and blood samples were analyzed.

RESULTS:

Muscle voluntary contraction and serum creatine kinase increased equally over the study period in both conditions.
From the cytokines evaluated, only IL-6 increased in DEPRIVATION.
No differences were detected in testosterone levels between conditions, but IGF-1, cortisol, and cortisol/total testosterone ratio were higher in DEPRIVATION

CONCLUSIONS:
Acute total sleep deprivation;

Does not affect muscle strength recovery.
Increases blood IL-6 levels.
Modifies the blood hormone balance by increasing IGF-1, cortisol, and the cortisol/ total testosterone ratio.

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SOURCE:
Dattilo et al. 2020. Effects of Sleep Deprivation on Acute Skeletal Muscle Recovery after Exercise. ACSM

Dalton Urrutia, MSc PT

Dalton is a Physical Therapist from Oregon, currently living and running the performance physiotherapy clinic he founded in London for Grapplers and Strength & Conditioning athletes. Dalton runs the popular instagram account @physicaltherapyresearch, where he posts easy summaries of current and relevant research on health, fitness, and rehab topics.

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