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Review Question - QID 3271

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QID 3271 (Type "3271" in App Search)
A 78-year-old male with a history of chronic low back pain and bilateral knee arthritis enrolls in an aquatic exercise program after land training has become too painful for him. Each of the following are true regarding aquatic exercises EXCEPT:

They function to minimize joint stress

2%

98/4241

Secondary injuries of the lower limb joints can be prevented

1%

59/4241

They are associated with lower maximal heart rates when matched against comparable land exercises

12%

521/4241

Oxygen consumption is increased when compared to equivalent exercises on land

7%

298/4241

The vertical component of the ground reaction forces increases compared to equivalent exercises on land

76%

3241/4241

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Exercises in water can minimize joint stress by decreasing the vertical component of the ground reaction forces through buoyancy. Furthermore, they are believed to prevent secondary injuries of the lower limb joints through improved balance and muscle control. In addition, it has been found that aquatic exercises can be beneficial to the cardiorespiratory system by preventing abrupt increases in heart rate, and by requiring greater oxygen consumption than equivalent exercises on land.

Miyoshi et al quantified the ankle, knee, and hip joint moments during walking in water in comparison with those on land with the use of a video-motion analysis system in eight healthy volunteers who walked at a speed comfortable for them. They concluded that walking in water could be designed to incorporate large muscle activities, especially lower limb extensor muscles, through the full range of joint motion, while minimizing joint moments.

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