Does sleep deprivation (SD) affect various indices of muscle strength? To Jack’s complete lack of surprise: probably yes. This systematic review investigated 13 studies on the links. Tl;dr: Drop setting those Z’s may be eating into sick gainz bro For background: · 7-9 hrs sleep per night is recommended for most people · Poor quality and duration… Continue reading Implications of sleep loss or sleep deprivation on muscle strength: a systematic review
Tag: fitness
Association of wearable device-measured vigorous intermittent lifestyle physical activity with mortality
Can brief bursts of vigorous activity, like running up stairs, or walking quickly through the shops, reduce all-cause mortality? Yes according to this study. This paper was discussed on a YT channel I follow called Physionic (link to YT and paper in comments). Physical activity was measured via wearables from 25k non-exercisers (UK Biobank data)… Continue reading Association of wearable device-measured vigorous intermittent lifestyle physical activity with mortality
Safety incidents associated with extended working hours. A systematic review and meta-analysis
This meta-analysis evaluated whether extended working hours is associated with work injury (either during or after work). 22 studies were included. This study didn’t find significant evidence for all of the expected links found in other studies (e.g. weak or no association between working overtime on incidents), and this is likely a result of their… Continue reading Safety incidents associated with extended working hours. A systematic review and meta-analysis
Night shift work and indicators of cardiovascular risk: a systematic review and meta-analysis
This may interest people – a meta-analysis and systematic review of the effects night shift work has on markers of cardiovascular risk. Not a summary – you can read the full open access paper. 81 studies met inclusion criteria – 14 cohort and 67 cross-sectional. Findings: · “Night shift work is associated with increased inflammation · “HDL-C… Continue reading Night shift work and indicators of cardiovascular risk: a systematic review and meta-analysis
Imbalanced sleep increases mortality risk by 14–34%: a meta-analysis
Poor sleep increases mortality risk by 14 – 34% according to a new meta-analysis. 79 cohort studies were included. Findings: · Inadequate sleep was defined as fewer than 7 h per night · 1/3 of adults regularly experience insufficient sleep which are “driven by lifestyle factors deeply rooted in modern society” · Chronic sleep deprivation has been linked… Continue reading Imbalanced sleep increases mortality risk by 14–34%: a meta-analysis
1912 article discussing the role of fatigue in industrial accidents and arguing against ‘carelessness’ as an “ultimate cause”
This was an interesting article from 1912 highlighting the role that fatigue has in industrial accidents. Also challenges ‘carelessness’, saying it doesn’t account for the effects of fatigue. While scientific knowledge has progressed over the century, it’s cool how well they articulated the issue. · Image 1 top panel shows a breakdown of accidents per time… Continue reading 1912 article discussing the role of fatigue in industrial accidents and arguing against ‘carelessness’ as an “ultimate cause”
SafetyInsights.org 