Research Study Participation

• Age 18-85 years
• Fluent in English
• Suspected hearing loss

We invite you to take part in a research study if you are:

• Female sex between 18-40 years old
• Premenopausal with a regular menstrual cycle between 25-35 days and have tracked your menstrual cycle consistently for at least the past three months.
• Willing to wear a Garmin activity tracker device daily including during sleep
• Own a smartphone with the ability to track and sync data via a mobile app
• Not be pregnant, less than 12 months postpartum, or breastfeeding

Additional criteria will be evaluated using an online screener

We invite you to take part in a research study because you are a male runner between the ages of 18 and 40 who has been running at least 4 times per week for the past 3 years and has a recent 5 km personal best under 20 minutes. You must also be:

• Free from injury and able to safely complete treadmill running
• Willing to follow all pre visit restrictions (no caffeine within 24 hours, no strenuous exercise within 24 hours, no food within 3 hours)

• Younger adults aged 18–35 years with a body mass index (BMI) of 18.5–34.9 kg/m² who have participated in lower-body resistance training at least twice per week for the previous 6 months.
• Older adults aged 70 years and older with a body mass index (BMI) of 18.5–34.9 kg/m² who have not participated in lower-body resistance training during the previous 6 months.

• Are a recreationally active (≥150 minutes per week of physical activity) male between the ages of 18-35.
• Are willing to come in for all five visits.

• Adults 18-40 years of age
• Familiarity with the names of foundational yoga poses
• Physical activity is not contraindicated (i.e., no affirmative responses on the Physical Activity Readiness Questionnaire for Everyone [PAR-Q+])

• Male or female between the ages of 18-40 years old.
• 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 (female participants only).
• Currently not pregnant and do not intend to become pregnant (female participants
  only).
• Currently not taking dietary supplements that may affect study outcomes (e.g., creatine, beta-alanine) and willing refrain from taking such supplements while enrolled in the study. If you are currently using such supplements, you will be permitted to enroll in the study after not taking such supplements for a period of four weeks.
• Willing to adhere to all pre-testing visit instructions including abstaining from exercise for the duration of the study and abstaining from alcohol for 24 hours prior to each study visit.
• Currently consuming ≤ 300mg caffeine (≤ three 8oz cups of coffee) per day on average and willing to keep caffeine intake consistent throughout the duration of the study. Also willing to avoid caffeine intake for 12 hours prior to visits 3, 4 and 5 and not consume caffeine the morning of these visits.
• 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 visit 1 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.

• Enrolled UCF student
• Female, aged 18 to 30
• Willing to wear an activity tracker on your wrist for 7 days
• Able to read, write, and provide informed consent in English

• Participants must be untrained (do not meet ACSM criteria for being physically active: strength training less than 2x/week and less than 150 minutes of aerobic exercise per week)
  • Please note: We are no longer recruiting resistance-trained individuals. We have already completed recruitment of this group.
• 18-50 years old
• Healthy (no pain or injury)