CHPS RESEARCH STUDIES

Impact of the Menstrual Cycle on Recovery from Resistance Exercise

The purpose of this study is to examine how different phases of the menstrual cycle affect your white blood cells’ response to resistance exercise and how this impacts recovery from muscle damage caused by exercise. Additionally, we will look at physical performance, sleep quality, exercise enjoyment, mood, and feelings of stress and soreness from before exercise to several time points after exercise to see how the menstrual cycle influences these aspects.

Inclusion Qualifications:

A female between the ages of 18-40 years old and weigh at least 110 pounds.
Healthy and ready for physical activity as determined by questionnaires you complete about your health status.
Currently resistance training and have trained for a minimum of 6 months. To be included, you must have completed 3 resistance training sessions (defined as muscle strengthening activities such as free weights, weight machines, or calisthenics, etc.) per week with at least one lower body session. This will be determined by a Training History Questionnaire (THQ).
Premenopausal, with a regular menstrual period as determined by the menstrual status questionnaire.
Not currently or have not used hormonal birth control or intrauterine devices in the past three months (or three full menstrual cycles). The acceptable methods of birth control include barriers (like condoms), tubal ligation, and abstinence.
Know the approximate dates of your last 6 menstrual cycle starts (onset of menses). We will collect this information from you after you have agreed to take part in this research study and sign this informed consent form.
Currently not pregnant and do not intend to become pregnant. We will ask you to verbally confirm your pregnancy status.
Willing to adhere to all pre-testing visit instructions including abstaining from exercise, alcohol, and caffeine consumption prior to each testing visit for which it is required.
Free from previous or current lower body injuries that may limit your ability to complete either exercise or physical assessments.
Highly likely to be successful at providing the required blood samples. This will be determined during today’s visit by a certified phlebotomist.
Not regularly taking any type of prescription or over-the-counter medication which might affect the assessments, or having any chronic illnesses, which require medical care.
This will be determined in your medical history questionnaire.

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