Nick Krontiris Profile picture
May 6 10 tweets 5 min read Twitter logo Read on Twitter
Interestingly, the findings of this one suggest that individuals who exercise are more susceptible to decompression sickness. Image
- When the ambient pressure and, thus, the pressure in the body’s tissues is markedly and rapidly reduced, decompression sickness can occur.
- Decompression sickness may develop in conjunction with diving, flying and extravehicular space activities (“space walks”).
- Reducing the hydrostatic pressure in a tissue limits its ability to hold physically dissolved gas (mainly nitrogen), and a rapid pressure reduction can therefore lead to gas supersaturation and bubble formation in body tissues and venous blood (venous gas emboli).
- Individuals who are exposed on a regular basis to substantial changes in ambient pressure, e.g. divers and pilots, are commonly physically active.
- Consequently, the aim of this study was to investigate whether eccentric work increases the incidence of venous gas bubbles in connection with hypobaric decompression to 24,000 feet for 90 min.
- Muscle damage induced by eccentric arm work 24 h prior to ascent from sea level to 24,000 ft, increased the likelihood of formation of decompression bubbles during rest and arm-flex provocation, but interestingly, not during knee-bend provocation.
- An earlier onset of first venous gas emboli in the eccentric exercise exposures was also observed.
- Therefore, this study suggests that 15 min of eccentric upper body exercise 24 hours prior to decompression can increase the prevalence of venous gas emboli, and advance the generation of venous gas emboli during a continuous 90-min exposure at 24,000 ft.
Eccentric exercise 24 h prior to hypobaric decompression increases decompression strain (open access)

doi.org/10.1007/s00421…

#exercise #fitness #fit #FitFam #FitLife #FitnessAddict #Workout #TrainHard #GymLife #GymTime #muscle #strength #lift #GetStrong #cardio #hiit

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May 8
In this one, after primary treatment for ovarian cancer, those who met or exceeded protein intake recommendations for cancer survivors in general (i.e., >1g/kg) had better progression-free survival than those with lower intake levels.
- This study aimed to investigate whether intake of protein and protein food sources following primary treatment for ovarian cancer is associated with recurrence and survival.
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May 7
In this one, acute exposure to simulated high (~2500m) or very high (~4000m) altitude prior to an OGTT did not appear to influence glucose homeostasis, insulin sensitivity, markers of oxidative stress or inflammation, in males with overweight with a men age of 32 years. Image
- Previous research has shown that ≤60 min hypoxic exposure improves subsequent glycaemic control, but the optimal level of hypoxia is unknown and data are lacking from individuals with overweight.
- This study tried to examine the short-term effects of different levels of acute hypoxia on glucose tolerance, insulin sensitivity, markers of inflammation and oxidative stress and feasibility in males with overweight, a group predisposed to impaired glucose homeostasis.
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May 7
The findings of this one suggest that weight loss during a high-intensity exercise program is likely to lead to improved substrate oxidation during exercise. Image
- This study is a secondary analysis of the “Effects of SIT on substrate oxidation in adults living with and without obesity: i-FLEX study”...
...a clinical trial investigating changes in substrate oxidation and insulin sensitivity following 4 weeks of sprint interval training (SIT) between individuals with and without obesity.
Read 8 tweets
May 7
In this one, higher intakes of a pro-inflammatory diet, as assessed by the Energy-adjusted Dietary Inflammatory Index (E-DII) score, was found associated with higher risk of all-cause mortality, and incident cardiovascular disease and cancer. Image
- The associations with all-cause mortality and incident cardiovascular disease were observed only for diets that were more pro-inflammatory than the global average.
- In contrast, the association with incident cancer was broadly linear.
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May 7
In this one, a quadriceps-focused exercise program and a hip-focused exercise program provided equivalent effectiveness for improvements in symptoms and function in patients with patellofemoral pain. Image
- The aim of this study was to assess effectiveness equivalence between a focused ‘Quadriceps Exercise’ protocol and a focused ‘Hip Exercise’ protocol on symptoms and function in patients with patellofemoral pain.
- The exercise interventions lasted for 12 weeks with 3 weekly home-based exercise sessions consisting of three sets of 8–12 repetitions.
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May 7
In this nationally representative sample of US youths at higher risk for type 2 diabetes due to elevated BMI, risk perception and risk awareness were not found associated with greater engagement in diabetes risk-reducing behaviors.
- Instead, greater diabetes risk perception was associated with more time spent watching TV and fewer days of adequate physical activity, whereas awareness was not associated with reported health behaviors.
- Some health care access barriers, including measures of economic disadvantage, were associated with adverse patterns of health behaviors such as lower levels of physical activity.
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