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| http://dx.doi.org/10.1113/JP275063 | DOI Listing |
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Plasma and salivary hormone responses to a 30-min exercise stress test in young, healthy, physically active females.
Physiol Rep
December 2024
SHAPE Research Centre, Department of Sport Science, Nottingham Trent University, Nottingham, UK.
Overreaching, a consequence of intensified training, is used by athletes to enhance performance. A blunted hormonal response to a 30-min interval exercise stress test (55/80) has been shown in males after intensified training, highlighting cortisol and testosterone as potential biomarkers of overreaching. Despite accounting for ~50% of the population, studies into hormonal responses to exercise in females are lacking.
View Article and Find Full Text PDFAccelerated ovarian failure results in brain alterations related to Alzheimer's disease that are not recovered by high-intensity interval training in mice.
Alzheimers Dement
December 2024
Department of Health Sciences, Brock University, St. Catharines, Ontario, Canada.
Introduction: The menopausal decline in ovarian estrogen production is thought to increase the risk of Alzheimer's disease; however, this link requires further investigation. The chronological development of this connection is not well defined because of the lack of animal models that recapitulate the time course of menopause. This study characterized the cognitive and neuronal effects of the 4-vinylcyclohexene diepoxide (VCD) model of ovarian failure in female mice and assessed whether high-intensity interval training (HIIT) would attenuate impairments.
View Article and Find Full Text PDFThe effects of different forms of exercise during the early life on the bone microstructure of ovariectomized mice.
Bone
December 2024
School of Exercise and Health, Guangzhou Sport University, Guangzhou 510500, China; Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, Guangzhou Sport University, Guangzhou 510500, China. Electronic address:
Postmenopausal osteoporosis is a type of bone disease with bone loss and deterioration of skeletal function that occurs in women after menopause. Studies have found that early-life exercise can reduce the risk of fractures and decrease the occurrence of osteoporosis, making it a promising approach for preventing and reversing bone loss. In this study, to identify the optimal forms of exercise during early life to optimize bone health and provide suggestions for promoting bone health through exercise training during early life, we conducted different forms of exercise interventions including ladder climbing, treadmill running, combined training, and whole-body vibration (WBV) on adolescent mice for 8 weeks and observed the accumulation of bone mass and arrangement of bone microstructure in adult mice.
View Article and Find Full Text PDFMenstrual cycle phase does not influence muscle protein synthesis or whole-body myofibrillar proteolysis in response to resistance exercise.
J Physiol
December 2024
Exercise Metabolism Research Group, Department of Kinesiology, McMaster University, Hamilton, ON, Canada.
It has been hypothesised that skeletal muscle protein turnover is affected by menstrual cycle phase with a more anabolic environment during the follicular vs. the luteal phase. We assessed the influence of menstrual cycle phase on muscle protein synthesis and myofibrillar protein breakdown in response to 6 days of controlled resistance exercise in young females during peak oestrogen and peak progesterone, using stable isotopes, unbiased metabolomics and muscle biopsies.
View Article and Find Full Text PDFPrimary Osteoporosis Induced by Androgen and Estrogen Deficiency: The Molecular and Cellular Perspective on Pathophysiological Mechanisms and Treatments.
Int J Mol Sci
November 2024
Department of Obstetrics and Gynecology, Taipei Tzu-Chi Hospital, The Buddhist Tzu-Chi Medical Foundation, New Taipei City 231, Taiwan.
Primary osteoporosis is closely linked to hormone deficiency, which disrupts the balance of bone remodeling. It affects postmenopausal women but also significantly impacts older men. Estrogen can promote the production of osteoprotegerin, a decoy receptor for RANKL, thereby preventing RANKL from activating osteoclasts.
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