Question

1.) In young, healthy adults, maximal voluntary ventilation (MVV or MBC) will typically be larger than minute ventilation (volume of air exchanged per minute) during maximal exercise.  

True or False

2.) Skeletal size affects diameter measurements.

True or False

3.) The Berg Balance Scale assesses dynamic balance when walking.  

True or False

4.) Compared to young adults, older adults (i.e., 65+ years-of-age) take longer to recover from a postural perturbation.

True or False

5.) During isokinetic testing, the individual exerts maximal force through the range of motion.  

True

False

Answer 1

1. False.

Maximal voluntary ventilation (MVV or MBC) is the maximum amount of air that can enter during inspiration and exhaled during expiration within one minute. The value of maximal voluntary ventilation (MVV or MBC) in female is 80-120 liter per minute and for males ,it is 140-180 liter per minute.The minute ventilation tend to increase due to increased maximal voluntary ventilation.The increase in the minute ventilation is directly proportional to the maximum amount of air in inhalation and exhalation by the working muscle during maximal exercise.

2.True

The maximum diameter of the coracoid in avians provides the precise prediction of the avians body mass as per research data. Therefore, skeletal size affect the diameter measurement.

3.False

The Berg Balance Scale assesses static and dynamic balance, and gives information about the balance impairment.The Berg Balance Scale can be used in activities like standing,reaching,bending and transfering.

4.True

The postural perturbation is the condition where adults losses the control of rapid balance reactions.older adults (i.e., 65+ years-of-age). The older adults have reduced muscle strength,sensory function that contributes to the longer recovery from postural perturbations compare to young adults. In addition, older adult also develops the skeletal muscle fatigue over the time, which can also be a factor in slower recovery.

5.True

In isokinetic strength, the forces are exerted at a constant forearm or limb velocity via a range of motion at a joint region .in isokinetic contraction,muscle contraction and relaxation occurs at constant speed and helps in gaining strength consistently.