INFORMED CONSENT FORM

University of North Carolina-Chapel Hill Consent to Participate in a Research Study Adult Participants

Social Behavioral Form

________________________________________________________________________ IRB Study #_____________________

Consent Form Version Date: ______________

Title of Study: A comparison of 4 week complex and compound training programs on lower body power development in college aged club volleyball players.

Principal Investigator: Jeremiah Libby UNC-Chapel Hill Department: EXSS

UNC-Chapel Hill Phone number: 919-962-2022 Email Address: [email protected]

Co-Investigators:

Faculty Advisor: Dr. Robert McMurray Funding Source:

Study Contact telephone number: 919-818-4441 Study Contact email: [email protected]

_________________________________________________________________ What are some general things you should know about research studies?

You are being asked to take part in a research study. To join the study is voluntary. You may refuse to join, or you may withdraw your consent to be in the study, for any reason, without penalty.

Research studies are designed to obtain new knowledge. This new information may help people in the future. You may not receive any direct benefit from being in the research study. There also may be risks to being in research studies.

Details about this study are discussed below. It is important that you understand this information so that you can make an informed choice about being in this research study. You will be given a copy of this consent form. You should ask the researchers named above, or staff members who may assist them, any questions you have about this study at any time.

What is the purpose of this study?

The purpose of this research study is to determine whether there are differences in lower body power production between complex and compound training programs on club volleyball players.

You are being asked to be in the study because lower body power is a key component to the success of volleyball players and due to the nature of your sport, would be most benefited from the results of the study.

Are there any reasons you should not be in this study? You should not be in this study if you:

• Have sustained a lower extremity injury in the past 3 months that has prevented you from participating in your sport.

• Currently compete as a power lifter.

• Are unable to squat to 90 degrees of knee flexion (thigh parallel to the floor). • Are not comfortable with jumping from a height of 30 cm.

How many people will take part in this study?

If you decide to be in this study, you will be one of approximately 30 people in this research study.

How long will your part in this study last?

You will be required to participate for a total of six weeks. In week one, you will come in for about 30 minutes to perform a vertical leap. Two days later, you will have your 1 repetition maximum for squat assessed (approx. 15 min). The following four weeks, you will train twice a week (approx. 30 min each session) and retest your vertical leap (approx. 20 min) on a separate day. The sixth week you will come to the lab to do one more vertical leap test (approx. 20 min).

What will happen if you take part in the study?

During the course of this study, the following will occur:

In a pre-screening conversation, we will determine your eligibility to participate in the study. If you meet the qualification criteria, you will be asked to fill out a form of consent. You will then come in to the Sports Medicine Research Laboratory dressed appropriately for athletics with several other participants and have your vertical leap measured on a force plate. During the sessions, jumping procedures will be explained to you and you will be free to ask any questions you have at any time. All vertical leap testing sessions will begin with three submaximal vertical leaps as a warm up.

During the initial testing session in week one, you will be asked to perform several “practice” jumps to become comfortable with the apparatus. Once testing begins, you will perform three maximal countermovement vertical leaps. You will rest 3 minutes between each leap while other participants perform their leaps.

Also, two days after your vertical leap, you will have your 1 repetition maximum (1RM) for the squat assessed at the Student Recreation Center. Again, you must dress appropriate for athletics and will report with several other participants. During the squat test, you will perform a light warm up of 5 to 10 repetitions at 40 to 60% of perceived maximum. You will then rest 1 minute with light stretching. You will then perform 3 to 5 repetitions at 60 to

repetitions at a near maximal load. You will then rest 2 to 4 minutes. You will then attempt your 1RM at a carefully selected weight determined by you and the investigator. If

successful you will increase your weight slightly, if unsuccessful, you will decrease your weight slightly and perform one last repetition after 2 to 4 minutes of additional rest. Based on your initial vertical leap results in week one, you will be paired with another participant and randomly assigned to one of two training groups, the complex or the compound group. The training protocols for both groups are below.

Table 1. Training Protocols for Complex and Compound Groups

Day One Day Two

Complex Group 7. Squat (3x6)

8. Depth Jump (3x6) 9. Single Leg Lunge

(3x6)

10. Split Squat Jump (3x6)

11. Deadlift (3x6)

12. Double Leg Bounds (3x6)

1. Squat (3x6) 2. Depth Jump (3x6) 7. Single Leg Lunge

(3x6)

8. Split Squat Jump (3x6)

9. Deadlift (3x6)

10. Double Leg Bounds (3x6)

Compound Training 6. Squat (3x6)

7. Single Leg Lunge (3x6)

8. Deadlift (3x6) 9. Squat (3x6)

10. Single Leg Lunge (3x6)

11. Deadlift (3x6)

1. Depth Jumps (3x6) 2. Split Squat Jumps

(3x6)

3. Double Leg Bounds (3x6)

4. Depth Jumps (3x6) 5. Split Squat Jumps

(3x6)

6. Double Leg Bounds (3x6)

All exercises will be demonstrated to you prior to any activity. You will perform all resistance exercises at 60% of your 1RM. During all exercise sessions, there will be an instructor there to ensure safety and feedback. Weeks 2 through 5, you will come to the laboratory at the beginning of each week to have your vertical leap measured. You will then train twice a week, allowing 48 hours of recovery between each exercise session. In the sixth week, you will come to the laboratory one last time to have your vertical leap measured. What are the possible benefits from being in this study?

Research is designed to benefit society by gaining new knowledge. You may not benefit personally from being in this research study.

benefit by participating in this study by experiencing an increase in your vertical leaping ability making you a more powerful volleyball player.

What are the possible risks or discomforts involved from being in this study?

There may be uncommon or previously unknown risks. You should report any problems to the researcher.

Known discomforts include muscle soreness following workout sessions. This should disappear within 48 hours. With any jumping or lifting activity, there is minimal risk of injury to lower extremity muscles, ligaments, or tendons. We will attempt to avoid this by giving you thorough instructions on proper technique during exercise and testing as well as adequate rest and recovery time between sets and sessions. At the completion of each session, stretching will be encouraged to help reduce the risk of muscle soreness. How will your privacy be protected?

Data will be stored securely in a locked cabinet of the study coordinator and will only be made available to persons conducting the study. All information will be coded and your identity will be removed from all records. Participants will not be identified in any report or publication about this study. Although every effort will be made to keep research records private, there may be times when federal or state law requires the disclosure of such records, including personal information. This is very unlikely, but if disclosure is ever required, UNC-Chapel Hill will take steps allowable by law to protect the privacy of personal information. In some cases, your information in this research study could be reviewed by representatives of the University, research sponsors, or government agencies for purposes such as quality control or safety.

What will happen if you are injured by this research?

All research involves a chance that something bad might happen to you. This may include the risk of personal injury. In spite of all safety measures, you might develop an injury from being in this study. If such problems occur, the researchers will help you get medical care, but any costs for the medical care will be billed to you and/or your insurance company. The University of North Carolina at Chapel Hill has not set aside funds to pay you for any such reactions or injuries, or for the related medical care. However, by signing this form, you do not give up any of your legal rights. Please contact the investigator, Jeremiah Libby, (919) 818-4441, if you are injured or have any further questions.

Will you receive anything for being in this study? You will not receive anything for taking part in this study. Will it cost you anything to be in this study?

What if you are a UNC student?

You may choose not to be in the study or to stop being in the study before it is over at any time. This will not affect your class standing or grades at UNC-Chapel Hill. You will not be offered or receive any special consideration if you take part in this research.

What if you have questions about this study?

You have the right to ask, and have answered, any questions you may have about this research. If you have questions, or concerns, you should contact the researchers listed on the first page of this form.

Jeremiah Libby (919) 818-4441 Dr. Robert McMurray (919) 962-2022

What if you have questions about your rights as a research participant?

All research on human volunteers is reviewed by a committee that works to protect your rights and welfare. If you have questions or concerns about your rights as a research subject you may contact, anonymously if you wish, the Institutional Review Board at 919-966-3113 or by email to [email protected].

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Participant’s Agreement:

I have read the information provided above. I have asked all the questions I have at this time. I voluntarily agree to participate in this research study.

_________________________________________ _________________ Signature of Research Participant Date

_________________________________________ Printed Name of Research Participant

_________________________________________ _________________ Signature of Person Obtaining Consent Date

_________________________________________ Printed Name of Person Obtaining Consent

APPENDIX B