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News: Experts say the 'cycle syncing'... (CNN News) - Behind the headlines

In the news

Media coverage of health and science topics

CNN News Dec. 23, 2022

Experts say the 'cycle syncing' workout trend may not be all it's cracked up to be | CNN

The premise of cycle syncing is relatively simple. Instead of doing the same type of workouts throughout the month, you instead tailor your workouts according to the current phase of your menstrual cycle.

Read more at CNN News

Behind the headlines

Research findings and data from the National Library of Medicine

PubMed articles

J Periodontol JAN. 1, 2004

The effect of menstrual cycle on periodontal health

EE Machtei et al

We observed changes in gingival scores during the menstrual cycles of periodontally healthy women. These changes need to be addressed when analyzing data from epidemiolog …

Sports Med MARCH 1, 2010

The effect of the menstrual cycle on exercise metabolism: implications for exercise performance in eumenorrhoeic women

T Oosthuyse et al

The female hormones, oestrogen and progesterone, fluctuate predictably across the menstrual cycle in naturally cycling eumenorrhoeic women. Other than reproductive functi …

Am J Clin Nutr JAN. 1, 2016

A weight-loss program adapted to the menstrual cycle increases weight loss in healthy, overweight, premenopausal women: a 6-mo randomized controlled trial

NR Geiker et al

A differentiated diet and exercise program that is tailored to counteract food cravings and metabolic changes throughout the menstrual cycle may increase weight loss abov …

Eur J Obstet Gynecol Reprod Biol JAN. 1, 2012

Possible factors for altered energy balance across the menstrual cycle: a closer look at the severity of PMS, reward driven behaviors and leptin variations

J McNeil et al

This paper reviews the literature on the variations in energy intake (EI), energy expenditure (EE) and the factors which may affect the fluctuations in EI across the mens …

Sports Med JAN. 1, 2020

The Effect of the Menstrual Cycle and Oral Contraceptives on Acute Responses and Chronic Adaptations to Resistance Training: A Systematic Review of the Literature

B Thompson et al

The reviewed articles reported conflicting findings, and were often limited by small participant numbers and methodological issues, but do appear to suggest female hormon …

Sports Med JAN. 1, 2022

Effects of Follicular and Luteal Phase-Based Menstrual Cycle Resistance Training on Muscle Strength and Mass

J Kissow et al

There is an increasing interest in female athletic performance-especially concerning the impact of the female menstrual cycle on training response. Indeed, fluctuations i …

Springerplus NOV. 11, 2014

Effects of follicular versus luteal phase-based strength training in young women

E Sung et al

Hormonal variations during the menstrual cycle (MC) may influence trainability of strength. We investigated the effects of a follicular phase-based strength training (FT) …

Front Physiol JUNE 26, 2020

Menstrual Cycle Effects on Exercise-Induced Fatigability

HM Pereira et al

Estrogen and progesterone have distinct concentrations across the menstrual cycle, each one promoting several physiological alterations other than preparing the uterus fo …

Contraception JAN. 1, 2004

How regular is regular? An analysis of menstrual cycle regularity

MD Creinin et al

We performed a retrospective analysis to ascertain how accurately women who believe that they have regular menstrual cycles estimate the length of their actual cycles. Da …

J Pediatr Adolesc Gynecol JAN. 1, 2015

Premenstrual Syndrome and Premenstrual Dysphoric Disorder in Japanese Collegiate Athletes

T Takeda et al

This study showed that premenstrual symptoms affect not only the daily activities but also the athletic performance of collegiate athletes.

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