Reducing Undercarboxylated Osteocalcin With Vitamin K Supplementation Does Not Promote Lean Tissue Loss or Fat Gain Over 3 Years in Older Women and Men: A Randomized Controlled Trial

AbstractAerobic exercise training has been shown to attenuate cognitive decline and reduce brain atrophy with advancing age. The extent to which resistance exercise training improves cognition and prevents brain atrophy is less known, and few studies include long-term follow-up cognitive and neuroimaging assessments. We report data from a randomized controlled trial of 155 older women, who engaged in 52 weeks of resistance training (either once- or twice-weekly) or balance-and-toning (twice-weekly). Executive functioning and memory were assessed at baseline, 1-year follow-up (i.e., immediately post-intervention), and 2-year follow-up. A subset underwent structural magnetic resonance imaging scans at those time points. At 2-year follow-up, both frequencies of resistance training promoted executive function compared to balance-and-toning (standardized difference [d]=.31–.48). Additionally, twice-weekly resistance training promoted memory (d=.45), reduced cortical white matter atrophy (d=.45), and increased peak muscle power (d=.27) at 2-year follow-up relative to balance-and-toning. These effects were independent of one another. These findings suggest resistance training may have a long-term impact on cognition and white matter volume in older women. (JINS, 2015,21, 745–756)

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Effects of an Acute Bout of Light-Intensity Walking on Sleep in Older Women With Sleep Impairment: A Randomized Controlled Trial

Journal of Clinical Sleep Medicine ◽

10.5664/jcsm.7718 ◽

2019 ◽

Vol 15 (04) ◽

pp. 581-586 ◽

Cited By ~ 1

Author(s):

Li-Jung Chen ◽

Clare Stevinson ◽

Shih-Hua Fang ◽

Chih-Yang Taun ◽

Po-Wen Ku

Keyword(s):

Randomized Controlled Trial ◽

Light Intensity ◽

Older Women ◽

Controlled Trial ◽

Acute Bout ◽

Sleep Impairment ◽

Randomized Controlled

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High-Intensity Interval Circuit Training Versus Moderate-Intensity Continuous Training on Cardiorespiratory Fitness in Middle-Aged and Older Women: A Randomized Controlled Trial

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17051805 ◽

2020 ◽

Vol 17 (5) ◽

pp. 1805 ◽

Cited By ~ 2

Author(s):

Ismael Ballesta-García ◽

Ignacio Martínez-González-Moro ◽

Domingo J Ramos-Campo ◽

María Carrasco-Poyatos

Keyword(s):

Blood Pressure ◽

Randomized Controlled Trial ◽

Older Women ◽

Controlled Trial ◽

Moderate Intensity ◽

Middle Aged ◽

Continuous Training ◽

Randomized Controlled ◽

High Intensity Interval ◽

Better Than

High-intensity interval training (HIIT) has similar or better effects than moderate-intensity continuous training (MICT) in increasing peak oxygen consumption (VO2max), however, it has not been studied when HIIT is applied in a circuit (HIICT). The aim of this study was to compare the effects of a HIICT versus MICT on VO2max estimated (VO2max-ES), heart rate (HR) and blood pressure (BP) of middle-aged and older women. A quasi-experimental randomized controlled trial was used. Fifty-four women (67.8 ± 6.2 years) were randomized to either HIICT (n = 18), MICT (n = 18) or non-exercise control group (CG; n = 18) for 18 weeks. Participants in HIICT and MICT trained two days/week (one hour/session). Forty-one participants were assessed (HIICT; n = 17, MICT; n = 12, CG; n = 12). Five adverse events were reported. Cardiorespiratory fitness, HR and BP were measured. The tests were performed before and after the exercise intervention programs. VO2max-ES showed significant training x group interaction, in which HIICT and MICT were statistically superior to CG. Moreover, HIICT and MICT were statistically better than CG in the diastolic blood pressure after exercise (DBPex) interaction. For the systolic blood pressure after exercise (SBPex), HIICT was statistically better than CG. In conclusion, both HIICT and MICT generated adaptations in VO2max-ES and DBPex. Furthermore, only HIICT generated positive effects on the SBPex. Therefore, both training methods can be considered for use in exercise programs involving middle-aged and older women.

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