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Nathan Goodyear

Nutrition Care for Patients with Weight Regain after Bariatric Surgery - 0 views

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    Bariatric surgery has a regain of 25-30% of weight loss and a 25% failure to achieve successful weight loss.
Nathan Goodyear

Fifty- two-Week Treatment With Diet and Exercise Plus Transdermal Testosterone Reverses... - 0 views

  • there appears to be a positive correlation between serum testosterone levels and insulin sensitivity in men across the full spectrum of glucose tolerance (Pitteloud et al, 2005), and this relationship is at least partially direct and not fully dependent on (changes in) elements of the MetS
  • supervised D&E alone led to significant improvements in testosterone concentrations, glycemic control, and components of the MetS
  • diet control, exercise, and testosterone supplementation may be beneficial in the management of men with T2D
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  • androgen-deprivation therapy in males with prostatic cancer may be associated with an increased risk for T2D, which may be caused by negative effects on insulin sensitivity
  • insulin sensitivity, measured by HOMA, improved in both groups and with a significantly greater degree when testosterone was added to supervised D&E
  • Fasting insulin concentrations, a good representative of insulin sensitivity, did show a significant correlation with changes in circulating androgen levels, an observation in support of Pitteloud et al (2005), who showed a direct relationship between insulin sensitivity and circulating testosterone concentrations using the hyper-insulinemic euglycemic clamp technique
  • 52 weeks of testosterone treatment also significantly improved circulation levels of adiponectin and hsCRP, key serum markers of insulin sensitivity and hepatic steatosis
  • The changes in both adiponectin and hsCRP were significantly correlated with the therapy-induced changes in bioavailable testosterone
  • a negative correlation was found between hsCRP levels and bioavailable testosterone
  • serum PSA concentrations did not differ between the 2 treatment groups, indicating that short-term testosterone administration appears to be acceptably safe
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    Study of men with metabolic syndrome and type II Diabetes finds that diet and exercise alone improved glucose control and metabolic syndrome components by 31%.  The addition of Testosterone therapy increased this % to 81%.
Nathan Goodyear

Fifty-two-week treatment with diet and exercise plus transdermal te... - PubMed - NCBI - 0 views

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    This article finds that Testosterone transdermal therapy addition to Diet and exercise improved glycemic control and reversed Metabolic Syndrome in men with low T and type II Diabetes.  This article really highlights the proper approach to therapy: combined nutrition, exercise, and Testosterone therapy, when indicated, for men with Metabolic Syndrome and/or Diabetes.  A reduction in IR, adiponectin and hsCRP was observed.
Nathan Goodyear

PLOS ONE: Caramel Color in Soft Drinks and Exposure to 4-Methylimidazole: A Quantitativ... - 0 views

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    Study finds 4-MEI, a known carcinogen, is found in variable levels in soft drinks.  4-MEI is found in caramel flavoring.
Nathan Goodyear

Coconut oil supplementation and physical exercise improves baroreflex sensitivity and o... - 0 views

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    Animal study finds the combination of coconut oil and exercise training reduced oxidative stress and lowered blood pressure.
Nathan Goodyear

BMC Complementary and Alternative Medicine | Full text | An open label pilot study to e... - 0 views

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    Black Spanish radish found to up regulate phase I/II liver detoxification with tylenol exposure.  Now, this was sponsored by a maker of a herbal product so that would include some potential bias.

Nathan Goodyear

Dietary Diabetes Risk Reduction Score, Race and Ethnicity, and Risk of Type 2 Diabetes ... - 0 views

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    lower risk of type II Diabetes associated with healthy diet.  Disease or Health begin with nutrition and the gut.
Nathan Goodyear

Intravenous Fluid Use in Athletes - 0 views

  • The current data suggest that IV rehydration is faster than oral
  • There may be physiological benefits of decreased heart rate and norepinephrine in athletes rehydrated via IV route
  • Muscle damage during exercise in the heat was assessed by myoglobin and creatine kinase
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  • Postexercise blood 1 hour and 24 hours showed no differences in circulating myoglobin or creatine kinase
  • IV administration of fluids can rapidly replace plasma volume
  • The rapid increase in plasma volume is transient, and no measureable difference between IV and oral prehydration exists after 15 minutes of exercise
  • The use of IV fluid may be beneficial for a subset of fluid sensitive athletes
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    IV nutrition pre-event, intra-event, and post-event for recovery.
Nathan Goodyear

Intravenous versus oral rehydration in athletes. - PubMed - NCBI - 0 views

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    to be read.
Nathan Goodyear

Effect of saline infusion on body temperature and endurance during ... - PubMed - NCBI - 0 views

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    to be read
Nathan Goodyear

Intravenous Fluid Use in Athletes - 0 views

  • Treatment of exercise-associated hyponatremia with hypertonic IV infusion to correct plasma sodium levels is also a standard and accepted use of IV fluid infusions
  • athletes who present for medical care with hypernatremia who cannot tolerate oral fluids can benefit from IV fluids
  • Vaporization of sweat accounts for 80% of heat loss in hot, dry atmospheric conditions. This mechanism of water loss is the major contributor for exercise-associated dehydration
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  • The rate of water loss can be quantified through measurement of sweat rate
  • Pre- and postexercise body weight measurements are the most common means to estimate overall water loss but are condition specific
  • It appears that 1% to 2% body weight loss is well tolerated by the exercising athlete
  • Dehydration, defined as greater than 2% loss of body weight, can negatively affect performance
  • In highly trained endurance athletes, plasma volume and sodium serum concentration were preserved despite a 5% body weight loss
  • In Ironman triathletes, dehydration to 5% body weight loss did not correlate with occurrence of medical complications
  • hydration should begin hours prior to exercise, especially if known deficits are present, and fluids should be consumed at a slow, steady rate, with 5 to 7 mL/kg taken 4 hours prior to exercise
  • Sodium concentration did not produce significant changes in the rate of absorption but was primarily dependent on carbohydrate concentration
  • Replacing 150% of body weight loss over 60 minutes has been tolerated without complications
  • IV treatment of severe dehydration (>7% body weight loss), exertional heat illness, nausea, emesis, or diarrhea, and in those who cannot ingest oral fluids for other reasons, is clinically indicated
  • A recent survey of the National Football League teams revealed that 75% (24 of 32) of the teams utilized IV infusion of fluids for prehydration in at least some otherwise healthy individuals
  • In the National Football League, an average of 1.5 L of normal saline was administered approximately 2.5 hours prior to competition
  • after 2 hours of exercise, the rectal temperature was 0.6° higher in the group not receiving IV infusion. Also, stroke volume and cardiac output were 11% to 16% lower in the control group versus the IV infusion group.
  • Recent evidence suggests the etiology of EAMC is related to muscle fatigue and neuronal excitability
  • no correlation between hydration status or electrolyte concentrations with EAMC
  • there may be a subset of muscle cramping that is associated with a loss of both body fluid and sodium
  • Glycerol is the primary agent for oral hyperhydration
  • elevation of plasma volume by 200 to 300 mL via dextran infusion resulted in 15% increase in stroke volume, 4% increase in VO2 max, and an increase in the exercise time to fatigue
  • Neither the tonicity nor mode of hydration resulted in improved speed of rehydration, greater fluid retention, or improved performance
  • There are beneficial anecdotal reports of EAMC treatment in elite and professional-level athletes with IV hydration during the course of an event
  • Plasma volume was better restored during rehydration with IV fluids at preexercise and 5 minutes of exercise. At 15 minutes, there was no difference between IV and oral rehydration
  • More rapid restoration of plasma volume was accomplished in the IV treatment group with no advantages over oral rehydration in physiological strain, heat tolerance, ratings of perceived effort, or thermal sensations
  • No difference was found in exercise time to exhaustion. IV and oral rehydration methods were equally effective. Heart rates were statistically higher in the oral rehydration group through 75 minutes of exercise, and there were higher increases in norepinephrine plasma concentrations
  • No significant differences between the groups were found for time to recovery, number of days with pain, number of days with stiffness, sleep disturbance, fatigue, rectal temperature, and loss of appetite
  • The current data suggest that IV rehydration is faster than oral
  • There may be physiological benefits of decreased heart rate and norepinephrine in athletes rehydrated via IV route
  • Postexercise blood 1 hour and 24 hours showed no differences in circulating myoglobin or creatine kinase
  • The use of IV fluid may be beneficial for a subset of fluid sensitive athletes
  • this should be reserved for high-level athletes with strong histories of symptoms in well-monitored settings.
  • Volume expanders may also be beneficial for some athletes
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    to be read
Nathan Goodyear

https://www.cayugamed.org/docs/Nutrition_Update_for_the_Ultraendurance_Athlete%208.pdf - 0 views

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    Nutrition for ultra endurance.  To be read.
Nathan Goodyear

Greater survival after breast cancer in physically active women wit... - PubMed - NCBI - 0 views

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    Study finds that 5+ daily servings of fruits/vegetables and 30 mins walking 6 days/week is associated with improved survival in women with breast cancer.
Nathan Goodyear

European Journal of Clinical Nutrition - Effect of maternal n-3 long-chain polyunsatura... - 0 views

  • It is estimated that approximately 30% of children and adolescents in the United States and about 15–30% of those in Europe can be classified as overweight or obese
  • An increasing body of evidence now suggests that the nutritional environment encountered in utero and the early postnatal life may elicit permanent alterations in adipose tissue structure or function and, thereby, programme the individual’s propensity to later obesity
  • The composition of fatty acids in the Western diets has shifted toward an increasing dominance of n-6 relative to n-3 LCPUFAs over the past decades.9,10 This shift is also reflected in the fatty acid composition of breast milk
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  • Evidence from animal studies suggests that the n-6 LCPUFA arachidonic acid promotes adipose tissue deposition, whereas the n-3 LCPUFAs eicosapentaenoic acid and docosahexaenoic acid seem to exert an opposite effect
  • Overall, no effect of supplementation was found on BMI in preschool (<5 years) and school-aged (6–12 years) children
  • increased adiposity, once established in childhood, tends to track into adulthood
  • Many studies have shown that even children <2 years with a high BMI are at increased risk of developing obesity later in life
  • The acquisition of fat cells early in life appears to be an irreversible process
  • Evidence from cell culture and animal studies suggests that early exposure to n-3 LCPUFAs has the potential to limit adipose tissue deposition mainly by attenuating the production of the arachidonic acid metabolite prostacyclin, which has been shown to enhance adipogenesis
  • In conclusion, there is currently no evidence to support that maternal n-3 LCPUFA supplementation during pregnancy and/or lactation exerts a favourable programming effect on adiposity status in childhood
  • our systematic review highlights that most of the trials reviewed were prone to methodological limitations
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    Literature review finds limited data (9 studies, only 6 RCTs) of omega-3 during pregnancy.  No data was found that supported reduced obesity in children by mothers taking n-3 during pregnancy.  No harm was found either.  Data was sparse.  

    Take home: not enough data, no harm to pregnancy, children, thus if indications are present for mother, then recommend n-3.  At this point not studies have pointed to reduced obesity in children.
Nathan Goodyear

Dietary glycemic index, glycemic load, and the risk of breast cancer in an Italian pros... - 0 views

  • GI is a measure of carbohydrate quality in relation to glucose availability and is independent of quantity, whereas GL is a measure of the total glycemic effect and hence is anindicator of the insulin demand of the diet. High-glycemic diets are in fact generally associated with greater insulin secretion
  • the consumption of large quantities of high-GI foods rather than the consumption of high quantities of carbohydrates is linked to the development of breast cancer.
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    High glycemic load and glycemic index associated with increased breast cancer risk in premenopausal women.
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