Age-dependent Increase In Insulinemia Is Suppressed In Early Middle-aged Females With Exercise Habit

Hsu, Chia-lun; Hsu, Tung-Hsiung; Lee, Shin-Da; Fang, Chaojun; Chen, Fu-Tsai; Huang, Yi-Jen; Liu, Te-Chih; Kuo, Chia-Hua; Ivy, John L.

doi:10.1249/01.mss.0000322944.04947.b1

Cited by 3 publications

(3 citation statements)

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“…Both steroids were quantified using an ELISA kit from Diagnostic Systems Laboratories (Webster, Texas, USA) following the method detailed by Hsu et al (2008).…”

Section: Steroid Hormone Measurementsmentioning

confidence: 99%

The role of DHEA-S in the mood adjustment against negative competition outcome in golfers

Wang¹,

Chen

Lee

et al. 2009

Journal of Sports Sciences

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Several lines of evidence suggest that dehydroepiandrosterone sulphate (DHEA-S) is invariably consumed following different types of acute stress, implicating its role in stress coping and recovery. The role of DHEA-S in the mood adjustment against negative outcome for athletic competition has not previously been investigated. In the current study, 14 elite golfers participating in a major national golf tournament were subsequently divided into two groups according to their competition outcomes: made the cut (n=8) and failed to make the cut (n 8). The Profile of Mood States (POMS) inventory and plasma concentrations of DHEA-S and cortisol were measured 1 day before the beginning of competition (baseline) and 1, 3, and 5 days after the players' final competition, in the morning (08.00-08.30 h) under fasted conditions. Results showed that the total mood disturbance scores and DHEA-S were not changed for the group that made the cut throughout the entire observation period. DHEA-S concentration for the group that failed to make the cut fell significantly below baseline values on day 1 and remained lower for 5 days. The Depression subscale of the POMS for the group that failed to make the cut was increased only on day 1 post-competition, reflecting a situational reaction to the event. Cortisol concentration for the group that made the cut fell significantly below baseline values on day 1 only after competition and no change was observed for the group that failed to make the cut. In conclusion, although the overall mood state post-competition was well-maintained for those golfers who had a negative competition outcome, plasma DHEA-S concentration was reduced for 5 days, suggesting that it has a role in the coping mechanism against psychological challenge.

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“…Both steroids were quantified using an ELISA kit from Diagnostic Systems Laboratories (Webster, Texas, USA) following the method detailed by Hsu et al (2008).…”

Section: Steroid Hormone Measurementsmentioning

confidence: 99%

The role of DHEA-S in the mood adjustment against negative competition outcome in golfers

Wang¹,

Chen

Lee

et al. 2009

Journal of Sports Sciences

Self Cite

View full text Add to dashboard Cite

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“…Hernandez-Morante et al (2008) demonstrated for the first time in vitro that DHEA-S stimulates lipolysis in 85 obese patients, preferably in subcutaneous fat in women and in visceral fat in men. A study by Ho et al (2008) suggested that low DHEA-S is associated with increased waist-to-hip ratio and reduced insulin sensitivity with aging while Hsu et al (2008) had reported that body composition and insulin sensitivity can change with aging in early lifetime. Benefits of prosteroids supplementation in this regard for early middle-aged people requires more clinical investigation.…”

Section: Fat Mass Alteration and Steroid Prohormones Intakementioning

confidence: 99%

Steroid Prohormones: Effects on Body Composition in Athletes

Ostojić¹,

González²,

Stojanović³

2011

Steroids - Clinical Aspect

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“…Plasma glucose and insulin were measured within 3 h following sample collection (15). Glucose concentration was determined using the method of glucose oxidase.…”

Section: Measurementsmentioning

confidence: 99%

Effects of One-Year Swimming Training on Blood Pressure and Insulin Sensitivity in Mild Hypertensive Young Patients

Chen¹,

Chen

Huang³

et al. 2010

Chin. J. Physiol.

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Swimming is a lifestyle intervention recommended by many clinicians in the prevention and treatment of hypertension. Yet, not all studies have agreed that swimming training can reduce blood pressure (BP). Inclusion of normotensive subjects could be a confounder for discrepancies among studies. In this one-year longitudinal study, long-term effects of swimming training on BP were investigated in 7 mild hypertensive patients (systolic BP (SBP) > 140 mmHg) and 16 normotensive controls. At baseline, these subjects (aged 21.5 ± 0.1 years) did not participate in any form of sport training activity for the previous 3 months before enrollment into the training program. The training distance progressed from 0 (baseline) to 7 kilometers per week. BP and the homeostasis model assessment for insulin resistance (HOMA-IR) were determined under fasted condition at baseline and 48 h after the last swimming bout. The hypertensive patients displayed significantly greater HOMA-IR than age-matched normotensive controls. When data of all subjects were pooled, plasma glucose concentration was only slightly lowered after training, but weight, height, body mass index, SBP, diastolic BP (DBP) and HOMA-IR values were not significantly altered. However, when observation was restricted to the hypertensive patients, swimming training significantly lowered SBP by ~17 mmHg, concurrent with 41% reduction in HOMA-IR. Intriguingly, SBP in the normotensive subjects was elevated by ~ 6 mmHg after training. Conclusions: The present study found normalization rather than universal reduction effect of swimming training on BP. Furthermore, the BP-lowering effect of training in hypertensive patients appears to be associated with improvement in insulin sensitivity.

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Age-dependent Increase In Insulinemia Is Suppressed In Early Middle-aged Females With Exercise Habit

Cited by 3 publications

References 0 publications

The role of DHEA-S in the mood adjustment against negative competition outcome in golfers

The role of DHEA-S in the mood adjustment against negative competition outcome in golfers

Steroid Prohormones: Effects on Body Composition in Athletes

Effects of One-Year Swimming Training on Blood Pressure and Insulin Sensitivity in Mild Hypertensive Young Patients

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