This systematic review and meta-analysis suggests that patients with a cancer diagnosis are markedly insulin resistant.
- The objective of the investigation was to determine insulin resistance in patients with cancer.
To achieve that, a systematic review and a meta-analysis of studies assessing insulin sensitivity in patients with cancer using the gold-standard hyperinsulinemic–euglycemic clamp method was performed.
- Thus, by compiling data obtained using the gold-standard hyperinsulinemic–euglycemic clamp to assess insulin sensitivity, insulin resistance in patients with cancer was identified.
- The mean insulin-stimulated glucose disposal was 7.5 mg/kg/min in control subjects, whereas glucose disposal was 4.7 mg/kg/min in patients with a cancer diagnosis at the same insulin infusion rate.
Thus, on average, glucose disposal was 2.61 mg/kg/min lower in patients with cancer compared to control subjects.
Remarkably, the mean level of insulin resistance in patients with cancer was similar to or even higher than insulin-resistant patients diagnosed with type 2 diabetes.
Caveat:
The mechanisms underlying insulin resistance in patients with cancer could be due to the direct effects of cancer per se, the oncological treatment, and co-occurring risk factors.
Insulin resistance in patients with cancer: a systematic review and meta-analysis
This systematic review and meta-analysis of randomized controlled trials suggests that resistance training programs are likely to improve muscle architecture in healthy older adults.
- The review suggested improvements in maximum isometric force, pennation angle, fascicle length, thickness, and muscle activation after resistance training interventions.
- The meta-analysis also suggested a potential for improvement in the thickness of the medial gastrocnemius.
This systematic review and meta-analysis suggests that chronic exercise is likely to have a positive impact on markers of systemic inflammation in individuals with overweight/obesity and with or at risk of cardiometabolic diseases, as long as cardiorespiratory fitness is improved
- Results suggested that aerobic, resistance, and combined (aerobic + resistance) training programs are likely to be an effective strategy to alleviate the inflammatory status in individuals with overweight or obesity, even in those with concomitant cardiometabolic diseases.
- The effects appeared to be at least modulated by the extent of increase in cardiorespiratory fitness (VO2max) with some impact of reducing body fat % on the levels of the anti-inflammatory cytokine IL-10.
This systematic review and meta-analysis suggests that exercise is likely to aid in the area of pain management in adults living with and beyond cancer.
Caveats:
- "There was considerable heterogeneity in the studies included in the meta-analysis, which is consistent with much of the literature in exercise oncology...
The findings of this one suggest that intraset Repetitions in Reserve-based training prescription is a feasible method to autoregulate resistance training, especially when predictions are made closer to failure and during later sets.
- The study assessed the accuracy of intraset repetitions in reserve (RIR) predictions on single joint machine-based movements of trained and untrained men and women during four sets to failure at 72.5% of 1RM on cable biceps curl, cable triceps extension, and seated cable row.
- Overall, findings suggested that both men and women, regardless of training status, can predict repetitions in reserve within ∼1 repetition...
In this one, hot water immersion after resistance training was associated with improvements in measures of sleep quality and pretraining fatigue.
- Using a randomized cross-over design, the acute effects of 3 postresistance exercise water immersion strategies on perceived recovery, neuromuscular performance, and hormone concentrations in junior international and subelite male volleyball athletes were investigated.
- After resistance exercise, subjects randomly completed either 15-minute passive control, contrast water therapy, cold, or hot water immersion interventions, beginning 30 minutes post-exercise.
In this one, higher sedentary time was found associated with adverse cardiac structural measures, while higher light physical activity was associated with better cardiac function in adolescents.
- This study examined the independent relationships of device-based measured sedentary time and physical activity in relation to cardiac structural and functional geometry among adolescents.
- Higher sedentary time was associated with higher left ventricular mass indexed for height, while higher moderate-to-physical activity was also paradoxically associated with higher left ventricular mass indexed for height.