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Nick Krontiris Profile picture
@nick_krontiris
May 7 • 8 tweets • 4 min read Twitter logo Read on Twitter
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.
- The primary objective of this analysis was to further understand the role short-term sprint interval training-induced weight loss has on resting and submaximal fat oxidation and investigate their association with exercise performance, body composition, and metabolic outcomes.
- 4 weeks of sprint interval training-induced weight loss were likely to lead to decreases in RER and increases in fat oxidation during submaximal exercise compared to sprint interval training without weight loss. Image
- Changes in fat oxidation following sprint interval training were correlated with exercise performance, changes in waist circumference, and fat mass. Image
- No statistically significant improvements in substrate oxidation at rest were observed in either group.
The impact of sprint interval training with or without weight loss on substrate oxidation in adults: A secondary analysis of the i-FLEX study (open access)

doi.org/10.14814/phy2.…

#exercise #Workout #TrainHard #GymLife #GymTime #muscle #strength #lift #GetStrong #cardio #hiit

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More from @nick_krontiris

Nick Krontiris Profile picture
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.
- Those who met or exceeded protein intake recommendations for cancer survivors in general (i.e., >1g/kg) were more likely to have better progression-free survival than those with lower intake levels.
Read 9 tweets
Nick Krontiris Profile picture
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.
Read 6 tweets
Nick Krontiris Profile picture
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.
Read 6 tweets
Nick Krontiris Profile picture
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.
Read 8 tweets
Nick Krontiris Profile picture
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.
Read 7 tweets
Nick Krontiris Profile picture
May 7
Interestingly, in this one, low-repetitions-in-reserve (0-1) vs high-repetitions-in-reserve (4–6) during moderate to higher resistance loads (65%–95% 1RM) appeared to promote similar increases in strength and hypertrophy in previously trained males and females. Image
- This study investigated the effects of low-RIR versus high-RIR training on strength, hypertrophy, and motor unit adaptations in resistance-trained college-aged males and females.
- Given that the high-RIR group performed training further from failure, volume-load (i.e., sets × repetitions × load per repetition) would be expected to favor the low-RIR group.
Read 14 tweets

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