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Question 1Aquatic Fitness Professional Knowledge and Practice
Which property of water allows a person to exercise with reduced compressive joint loading compared with land-based exercise?
- Hydrostatic pressure
- Viscosity
- Buoyancy Correct answer.
- Surface tension
Explanation
Buoyancy is an upward force that counteracts gravity, reducing the effective body weight and compressive load on joints in shallow or deep water. The other fluid properties affect resistance, pressure, and drag rather than vertical unloading.
Question 2Aquatic Fitness Professional Knowledge and Practice
A participant exercising in chest-deep water at a slow tempo reports the movement feels easy, while the same movement at a fast tempo feels challenging. Which variable primarily explains this change?
- Speed-dependent drag Correct answer.
- Reduced range of motion
- Hydrostatic pressure gradient
- Buoyancy reduction
Explanation
Drag increases with the square of velocity, so faster movement through water produces disproportionately greater resistance. This is why tempo and lever length are key tools for progressing aquatic exercise intensity.
Question 3Aquatic Fitness Professional Knowledge and Practice
Which statement best describes the role of hydrostatic pressure during immersed exercise?
- It reduces the resistance of water to movement
- It pushes fluid from the extremities toward the central cavity Correct answer.
- It causes the body to float feet-first in deep water
- It increases heart rate by warming the skin
Explanation
Hydrostatic pressure acts equally on all submerged surfaces and is greater at depth, which assists venous return from the limbs toward the thorax. This contributes to the increased central blood volume observed during immersion.
Question 4Aquatic Fitness Professional Knowledge and Practice
What is the recommended immersion depth for a shallow-water aerobic class?
- Waist to chest depth Correct answer.
- Full submersion to the chin
- Neck to shoulder depth
- Ankle to knee depth
Explanation
Shallow-water classes are typically conducted at waist-to-chest depth, which permits full-foot contact with the pool floor while providing buoyancy and resistance. Deeper immersion changes buoyancy and gait mechanics and is generally reserved for deep-water formats.
Question 5Aquatic Fitness Professional Knowledge and Practice
When teaching a deep-water class, which cue best helps participants maintain a stable, vertical posture?
- Round the shoulders and look at the pool floor
- Hold the breath during each movement
- Use a sculling action with the arms and keep the head aligned over the hips Correct answer.
- Point the toes and extend the knees fully
Explanation
Sculling with the arms and keeping the head stacked over the hips promotes a vertical, balanced position in deep water. This reduces unwanted drifting and keeps the body oriented for the intended exercise.
Question 6Aquatic Fitness Professional Knowledge and Practice
Which participant requires the most careful screening before beginning a vigorous aquatic program?
- A person who is new to exercise but healthy
- A person recovering from a recent myocardial infarction without medical clearance Correct answer.
- A person with mild osteoarthritis
- A person with controlled hypertension
Explanation
Individuals with recent cardiac events or symptoms require physician clearance before beginning an exercise program. Standard screening protocols identify these higher-risk participants so appropriate medical approval can be obtained.
Question 7Aquatic Fitness Professional Knowledge and Practice
During a class, a participant suddenly reports chest pain and shortness of breath. What is the instructor's first priority?
- Stop the activity, summon emergency help, and follow the facility emergency action plan Correct answer.
- Ask the participant to walk it off in the shallow end
- Continue the class and monitor the participant from the deck
- Have the participant sit on the pool edge and finish the workout
Explanation
Chest pain with shortness of breath is a potential emergency requiring immediate cessation of activity, activation of emergency services, and adherence to the facility's emergency action plan. Instructors should not minimize or delay response to these signs.
Question 8Aquatic Fitness Professional Knowledge and Practice
What is the primary purpose of a warm-up in an aquatic fitness class?
- To exhaust the anaerobic system before aerobic work
- To raise core temperature and prepare joints and muscles for activity Correct answer.
- To assess maximal heart rate
- To practice advanced choreography at full speed
Explanation
A warm-up gradually increases core temperature, blood flow, and joint mobility while rehearsing movement patterns. This prepares the body for the conditioning phase and may reduce injury risk.
Question 9Aquatic Fitness Professional Knowledge and Practice
Which sequence best reflects a well-structured aquatic fitness class?
- Flexibility, conditioning, warm-up, cool-down
- Conditioning, cool-down, warm-up, flexibility
- Conditioning, warm-up, flexibility, cool-down
- Warm-up, conditioning, cool-down with flexibility Correct answer.
Explanation
A standard class progresses from a warm-up through the conditioning phase to a cool-down that includes flexibility work. This order supports gradual physiological transition and safe recovery.
Question 10Aquatic Fitness Professional Knowledge and Practice
An instructor wants to increase the intensity of a shallow-water walking segment without adding impact. Which modification is most appropriate?
- Ask participants to hold their breath
- Reduce the depth of the water to ankle level
- Add larger arm lever actions and travel farther per step Correct answer.
- Increase the speed of travel across the pool
Explanation
Increasing lever length with the arms and lengthening travel distance raises drag and workload while keeping the feet on the floor. This preserves a low-impact format while progressing cardiovascular demand.
Question 11Aquatic Fitness Professional Knowledge and Practice
Which method is most appropriate for monitoring exercise intensity in a participant taking a beta-blocker?
- Relying solely on the age-predicted maximal heart rate formula
- Assuming heart rate is unaffected by medication
- Using a target heart rate based on 220 minus age
- Using the rating of perceived exertion scale Correct answer.
Explanation
Beta-blockers blunt heart rate response, so heart-rate-based targets can underestimate true effort. Ratings of perceived exertion provide a more reliable guide to intensity for these participants.
Question 12Aquatic Fitness Professional Knowledge and Practice
What does the Borg rating of perceived exertion scale measure?
- Joint range of motion
- Maximal oxygen uptake
- Subjective effort during exercise Correct answer.
- Blood lactate concentration
Explanation
The RPE scale captures a participant's subjective sense of effort and can be used to guide and adjust intensity. It is especially useful when heart rate monitoring is unreliable or unavailable.
Question 13Aquatic Fitness Professional Knowledge and Practice
Which action best demonstrates the principle of progressive overload in an aquatic program?
- Keeping the same routine for months to ensure comfort
- Gradually increasing resistance, duration, or complexity over time Correct answer.
- Performing all movements at maximal speed from the first session
- Eliminating the cool-down to extend conditioning time
Explanation
Progressive overload means systematically increasing the demands placed on the body as adaptation occurs. In water, this can be achieved through added resistance, longer duration, or more complex movement.
Question 14Aquatic Fitness Professional Knowledge and Practice
Which of the following best describes the principle of specificity in aquatic training?
- Intensity should always be maximal
- Training adaptations are specific to the type of exercise performed Correct answer.
- All exercise produces identical adaptations
- Rest is unnecessary when training in water
Explanation
The principle of specificity states that the body adapts to the particular demands placed on it. A program should therefore be designed to match the participant's goals and functional needs.
Question 15Aquatic Fitness Professional Knowledge and Practice
A participant with limited shoulder mobility struggles to perform large overhead arm movements. What is the most appropriate instructor response?
- Remove all arm movement from the class
- Modify the range to a comfortable level and offer an alternative arm action Correct answer.
- Increase the speed to distract from the limitation
- Insist on full overhead range to build flexibility
Explanation
Modifying range and offering alternatives respects individual limitations while maintaining participation. Instructors should provide options that accommodate varying abilities within the group.
Question 16Aquatic Fitness Professional Knowledge and Practice
Which cue helps a participant avoid locking the knees during shallow-water exercise?
- Stand on the toes with knees straight
- Keep a soft, slightly bent knee throughout the movement Correct answer.
- Bounce rapidly on locked knees
- Fully extend and lock the knees on every step
Explanation
Maintaining a soft knee bend absorbs impact and protects the joint during weight-bearing aquatic movements. Locking the knees removes this shock absorption and increases stress.
Question 17Aquatic Fitness Professional Knowledge and Practice
Which of the following is the most appropriate way to add resistance to a shallow-water arm exercise?
- Moving the arms more slowly with a smaller range
- Holding the arms still at the sides
- Adding a foam noodle or hand paddles to increase surface area Correct answer.
- Standing in deeper water to remove foot contact
Explanation
Increasing surface area with equipment such as noodles or paddles raises drag and thus resistance. This is a common and controllable way to progress upper-body work in water.
Question 18Aquatic Fitness Professional Knowledge and Practice
What is the primary function of a flotation belt in a deep-water class?
- To replace the need for a warm-up
- To restrict arm movement for safety
- To support the body in a vertical position while allowing free limb movement Correct answer.
- To increase heart rate through added weight
Explanation
A flotation belt keeps the participant buoyant and vertical in deep water, freeing the limbs for full-range movement. This allows sustained aerobic work without foot contact.
Question 19Aquatic Fitness Professional Knowledge and Practice
Which of the following best describes the purpose of a cool-down in an aquatic class?
- To abruptly stop activity and exit the pool
- To maximize heart rate before class ends
- To introduce new high-intensity choreography
- To gradually reduce intensity and promote recovery Correct answer.
Explanation
A cool-down gradually lowers exercise intensity, allowing heart rate and blood pressure to return toward resting levels while promoting recovery. It often includes flexibility work.
Question 20Aquatic Fitness Professional Knowledge and Practice
An instructor notices a participant becoming dizzy and pale during a vigorous segment. What is the most appropriate immediate action?
- Ask the participant to hold their breath and continue
- Have the participant stop, sit safely, and be monitored Correct answer.
- Encourage the participant to continue to build endurance
- Increase the tempo to finish the segment quickly
Explanation
Dizziness and pallor may indicate exertional intolerance or a medical concern and warrant stopping activity and monitoring the participant. The instructor should follow facility protocols and seek help if symptoms persist.
Question 21Aquatic Fitness Professional Knowledge and Practice
Which of the following best describes the effect of water temperature that is too warm for a vigorous class?
- It reduces the need for hydration
- It may increase heat stress and fatigue Correct answer.
- It has no effect on physiological response
- It improves performance by cooling the body
Explanation
Warm water can impair heat dissipation and increase cardiovascular strain, leading to earlier fatigue and heat stress. Instructors should consider water temperature when planning intensity and duration.
Question 22Aquatic Fitness Professional Knowledge and Practice
Which of the following is the best reason to use a heart rate target range in an aquatic class?
- To provide a general guide for cardiovascular intensity Correct answer.
- To replace participant feedback entirely
- To determine the pool water temperature
- To ensure every participant reaches the same heart rate
Explanation
Heart rate targets offer a general guide to cardiovascular intensity, but individual variation means they should be combined with perceived exertion and observation. They are a tool, not an absolute requirement.
Question 23Aquatic Fitness Professional Knowledge and Practice
Which of the following movements is most appropriate for developing muscular endurance in the water?
- Holding a static stretch for 60 seconds
- A single maximal-effort push against resistance
- Repeated moderate-resistance movements through a full range Correct answer.
- Standing still and resting between sets
Explanation
Muscular endurance is developed through repeated submaximal contractions against moderate resistance. In water, drag and equipment provide the resistance for repeated movements.
Question 24Aquatic Fitness Professional Knowledge and Practice
Which statement best reflects the instructor's responsibility regarding participant confidentiality?
- Sharing health information with other participants is acceptable
- Health information should be kept private and shared only as needed for safety Correct answer.
- Instructors may post participant health details publicly
- Confidentiality applies only to competitive athletes
Explanation
Instructors have an ethical and often legal duty to protect participant health information, sharing it only with those who need it for safety or care. Public or casual disclosure violates that duty.
Question 25Aquatic Fitness Professional Knowledge and Practice
An instructor is planning a class for older adults with balance concerns. Which approach is most appropriate?
- Provide stable support options and progress balance work gradually Correct answer.
- Eliminate all balance work to reduce risk
- Include challenging single-leg movements without support from the start
- Increase speed to challenge balance quickly
Explanation
Balance training for older adults should offer stable support and progress gradually to build confidence and reduce fall risk. This respects individual ability while still providing a meaningful challenge.
Question 26Aquatic Fitness Professional Knowledge and Practice
Which water depth is generally recommended for shallow-water aquatic fitness classes?
- Overhead depth
- Mid-thigh to chest depth Correct answer.
- Neck depth only
- Ankle to mid-calf depth
Explanation
Shallow-water classes are designed for participants to stand with the water between roughly mid-thigh and chest level, which allows full weight-bearing movement while still providing buoyancy and resistance. Deeper water shifts the class toward deep-water formats that typically require flotation.
Question 27Aquatic Fitness Professional Knowledge and Practice
What is the recommended range for water temperature in a typical aquatic fitness class?
- 95 to 100 degrees Fahrenheit
- 83 to 88 degrees Fahrenheit Correct answer.
- 101 to 104 degrees Fahrenheit
- 70 to 74 degrees Fahrenheit
Explanation
Most aquatic fitness programming targets a moderately warm pool of roughly 83 to 88 degrees Fahrenheit, warm enough for comfort and mobility but cool enough to allow heat dissipation during vigorous work. Colder or hotter water alters thermoregulation and perceived exertion.
Question 28Aquatic Fitness Professional Knowledge and Practice
Which principle explains why a participant floats more easily in deep water than in shallow water?
- Buoyancy Correct answer.
- Viscosity
- Surface tension
- Hydrostatic pressure
Explanation
Buoyancy is the upward force exerted by water that counteracts gravity, and it increases with the volume of water displaced, so a fully submerged body in deep water is supported more completely. The other properties describe resistance, pressure, or surface effects rather than lift.
Question 29Aquatic Fitness Professional Knowledge and Practice
Which piece of equipment is most associated with deep-water classes to keep participants vertical and supported?
- Flotation belt Correct answer.
- Kickboard
- Aquatic noodle
- Resistance paddle
Explanation
A flotation belt is worn at the waist to keep the participant suspended in a vertical position during deep-water work. Other devices can provide support or resistance but are not designed primarily to maintain vertical alignment without a pool bottom.
Question 30Aquatic Fitness Professional Knowledge and Practice
Which cue best helps a participant maintain neutral posture during shallow-water walking?
- Lengthen the spine and keep the ribs stacked over the hips Correct answer.
- Lean the torso forward from the waist
- Tilt the pelvis forward and arch the lower back
- Round the shoulders and look at the water
Explanation
Neutral posture stacks the ribcage over the pelvis with a lengthened spine, which supports efficient movement and reduces strain. Leaning, rounding, or over-arching disrupts alignment and can increase stress on the back.
Question 31Aquatic Fitness Professional Knowledge and Practice
Which action best demonstrates the principle of reversibility?
- A participant performs movements specific to their goal activity
- A participant warms up before each session
- A participant gradually increases resistance over several weeks
- A participant who stops training for several weeks loses some of the fitness gains Correct answer.
Explanation
Reversibility means that fitness gains are lost when training stops or is reduced, so detraining illustrates the principle. The other options describe overload, specificity, and warm-up rather than reversibility.
Question 32Aquatic Fitness Professional Knowledge and Practice
Which format is most appropriate for a beginner-oriented aquatic class?
- Slower tempo with simple, repetitive patterns and frequent cueing Correct answer.
- Advanced interval work with little rest
- Fast tempo with complex choreography and minimal instruction
- High-impact jumping with rapid direction changes
Explanation
Beginners benefit from slower pacing, simple patterns, and clear repeated cueing so they can learn movement safely in the water. Complex or high-intensity formats raise the risk of error and injury for novices.
Question 33Aquatic Fitness Professional Knowledge and Practice
Which action best supports participant safety at the start of an aquatic class?
- Confirming the pool depth and entry points and reviewing emergency procedures Correct answer.
- Allowing participants to enter without checking depth
- Starting vigorous work immediately to save time
- Turning off poolside lighting to reduce glare
Explanation
Verifying depth, entry points, and emergency procedures before class begins supports safe participation and prepares the instructor to respond to incidents. Immediate vigorous work, unchecked entry, and poor lighting all increase risk.
Question 34Aquatic Fitness Professional Knowledge and Practice
A participant in a shallow-water class moves from a jog to a high-knee lift and reports the work feels harder. Which variable was primarily changed?
- Lever length and range of motion Correct answer.
- Water temperature
- Pool depth
- Rest interval length
Explanation
Lifting the knee increases the length of the moving lever and the range of motion, which raises drag and muscular demand. Temperature, depth, and rest length were not altered by the movement change.
Question 35Aquatic Fitness Professional Knowledge and Practice
Which change is most effective for increasing resistance in a shallow-water kick without adding equipment?
- Slowing the tempo to a near stop
- Reducing the depth so the leg stays above water
- Increasing the surface area of the foot and leg presented to the water Correct answer.
- Shortening the range of motion of the kick
Explanation
Drag rises with the surface area and speed presented to the water, so orienting a larger portion of the limb against the movement increases resistance. Shortening range, nearly stopping, or lifting the leg out of the water all reduce resistance.
Question 36Aquatic Fitness Professional Knowledge and Practice
An instructor wants participants to work at a moderate intensity for a sustained period. Which approach best supports this goal?
- Using continuous whole-body movements with steady tempo and moderate range Correct answer.
- Alternating brief bursts of all-out effort with complete recovery
- Using maximal-effort sprints with long rests
- Using single-joint maximal lifts with heavy equipment
Explanation
Steady continuous whole-body movement at a moderate tempo and range keeps heart rate elevated without excessive fatigue, which suits sustained moderate work. Maximal efforts and heavy single-joint lifts produce short, high-intensity efforts instead.
Question 37Aquatic Fitness Professional Knowledge and Practice
Which cue most directly helps a participant keep the shoulders safe during large arm circles in chest-deep water?
- Lock the elbows and swing from the wrists
- Push the chest forward and arch the back
- Keep the shoulder blades set and avoid forcing past a comfortable range Correct answer.
- Shrug the shoulders toward the ears throughout
Explanation
Setting the shoulder blades and staying within a comfortable range protects the shoulder joint during large circles. Shrugging, locking the elbows, or arching the back shifts stress and reduces control.
Question 38Aquatic Fitness Professional Knowledge and Practice
Which adjustment best accommodates a participant who is pregnant and joining a moderate aquatic class?
- Encouraging breath holding during underwater segments
- Encouraging comfortable range, avoiding overheating, and offering rest as needed Correct answer.
- Requiring maximal effort intervals to build fitness quickly
- Directing the participant to supine floating drills for long periods
Explanation
Pregnant participants generally benefit from comfortable movement, avoidance of overheating, and readiness to rest, which supports safety for both parent and fetus. Maximal effort, prolonged supine floating, and breath holding introduce avoidable risks.
Question 39Aquatic Fitness Professional Knowledge and Practice
Which combination best describes how to safely progress a participant's aquatic program over several weeks?
- Change the entire program every session
- Increase frequency, intensity, and duration all at once each week
- Keep all variables fixed indefinitely
- Increase one variable at a time, allow adaptation, and monitor response Correct answer.
Explanation
Progression is safest when one variable is advanced at a time with time to adapt and ongoing monitoring of the participant's response. Simultaneous large increases or constant wholesale change raises injury risk and obscures what is working.
Question 40Aquatic Fitness Professional Knowledge and Practice
What is the most appropriate way to organize participants for a large shallow-water class to maintain safety?
- Arrange them in staggered rows with enough space to move freely Correct answer.
- Have participants face away from the instructor
- Group them in a single dense cluster near the deep end
- Place everyone shoulder to shoulder in tight lines
Explanation
Staggered rows with adequate spacing let participants move without collisions and keep the instructor visible. Tight lines, facing away, or clustering near deep water reduce visibility and increase collision risk.
Question 41Aquatic Fitness Professional Knowledge and Practice
A participant reports shoulder discomfort during an overhead arm segment. Which instructor response best reflects sound practice?
- Offer a lower-range alternative and encourage the participant to stay within comfort Correct answer.
- Tell the participant to leave the class permanently
- Instruct the participant to push through the discomfort
- Increase the speed of the overhead movement
Explanation
Modifying range and respecting comfort protects the participant while keeping them active. Pushing through pain, excluding the participant, or speeding up the painful movement all risk worsening the problem.
Question 42Aquatic Fitness Professional Knowledge and Practice
Which practice best reflects the instructor's duty regarding participant health information?
- Sharing health details only with those who need to know for safety Correct answer.
- Posting health information on a public bulletin board
- Discussing a participant's condition openly with the class
- Sharing details with other participants for advice
Explanation
Health information should be kept confidential and shared only with those who need it to keep the participant safe, such as emergency responders. Public discussion or posting violates privacy and trust.
Question 43Aquatic Fitness Professional Knowledge and Practice
Which response best demonstrates appropriate professional boundaries when a participant asks for specific medical advice?
- Tell the participant to ignore the symptoms
- Decline to diagnose and refer the participant to a qualified health professional Correct answer.
- Diagnose the condition and prescribe a treatment
- Recommend a specific medication dose
Explanation
Aquatic fitness instructors work within their scope of practice and should refer medical questions to qualified professionals rather than diagnose or prescribe. Giving doses, diagnosing, or dismissing symptoms exceeds the role and risks harm.
Question 44Aquatic Fitness Professional Knowledge and Practice
An instructor notices the class is losing proper form as fatigue builds late in the session. Which action is most appropriate?
- Add resistance equipment to increase the challenge
- Reduce intensity or range and reinforce technique cues Correct answer.
- Extend the vigorous segment without a break
- Add faster music to push the class harder
Explanation
When form deteriorates with fatigue, reducing intensity or range and reinforcing technique restores safe movement. Pushing harder, adding equipment, or extending the segment worsens fatigue and injury risk.
Question 45Aquatic Fitness Professional Knowledge and Practice
Which cue best helps participants avoid excessive breath holding during effortful aquatic movements?
- Instruct participants to inhale and hold through each repetition
- Tell participants to exhale only at the end of the set
- Encourage continuous breathing coordinated with the movement Correct answer.
- Ask participants to breathe only through the nose at maximal effort
Explanation
Continuous breathing coordinated with movement prevents the breath holding that can sharply raise blood pressure during exertion. Holding through repetitions, exhaling only at the end, or restricting to nose breathing at maximal effort all encourage breath holding.
Question 46Aquatic Fitness Professional Knowledge and Practice
A participant new to deep-water work appears anxious about not touching the bottom. Which approach is most appropriate?
- Remove the flotation belt to build confidence faster
- Insist on unsupported treading in the center of the pool immediately
- Begin with supported vertical positions near the wall and progress gradually Correct answer.
- Have the participant practice breath holding underwater first
Explanation
Gradual introduction with support near the wall lets an anxious participant build comfort and skill before moving away. Immediate unsupported treading, removing support, or underwater breath holding increases fear and risk.
Question 47Aquatic Fitness Professional Knowledge and Practice
Which scenario best illustrates the interaction of buoyancy and drag during a deep-water suspended leg movement?
- The leg sinks because water pressure pushes it downward
- The leg moves with no resistance because the body is floating
- The leg is supported against gravity yet meets resistance as it moves through the water Correct answer.
- The leg cannot move because buoyancy locks the joint
Explanation
Buoyancy reduces the effective weight of the limb while drag resists its motion through the water, so both forces act at once during suspended movement. Pressure does not push the limb down, and buoyancy neither eliminates drag nor immobilizes the joint.
Question 48Aquatic Fitness Professional Knowledge and Practice
An instructor wants to keep heart rate in a moderate zone during a shallow-water class while a participant tends to drift into high intensity. Which strategy best supports the goal?
- Increase lever length and tempo to challenge the participant
- Reduce lever length and tempo and add brief active recovery Correct answer.
- Remove rest periods to build tolerance
- Add equipment to raise resistance during the same tempo
Explanation
Shortening levers, slowing tempo, and adding active recovery lower the work rate and help bring intensity back into the moderate zone. Longer levers, added resistance, and removing rest all push intensity higher.
Question 49Aquatic Fitness Professional Knowledge and Practice
Which reasoning best explains why an instructor pairs a shallow-water strength segment with a lower-intensity aerobic segment afterward?
- It guarantees participants will reach maximal heart rate
- It removes the need to monitor participant response
- It eliminates the need for a warm-up
- It manages cumulative fatigue while keeping the class active and balanced Correct answer.
Explanation
Alternating a demanding strength segment with lower-intensity aerobic work manages cumulative fatigue and keeps the session balanced and active. It does not guarantee maximal heart rate, replace a warm-up, or remove the need to monitor participants.
Question 50Aquatic Fitness Professional Knowledge and Practice
A participant with controlled hypertension wants to join a vigorous aquatic class. Which instructor action best reflects sound professional judgment?
- Follow facility policy, obtain any required clearance, and monitor response during class Correct answer.
- Recommend the participant stop all medication before class
- Assume the condition is irrelevant and proceed without any review
- Advise the participant to skip warm-up to save energy
Explanation
Instructors should follow facility screening policy, confirm any required medical clearance, and monitor the participant during exercise. Ignoring the condition, advising medication changes, or skipping warm-up all exceed the role or increase risk.