People with insufficient cerebral blood flow should avoid walking backward.
Walking backward can relieve tension in the neck and waist, stimulate rarely used muscles in the waist, upper limbs, and lower limbs, train the cerebellum, and enhance balance. However, elderly individuals with insufficient cerebral blood flow have low vascular reserve capacity, and walking backward can increase the burden on the cardiovascular and cerebrovascular systems.
Diabetic patients should avoid sprinting.
Sprinting can enhance heart and lung function and help burn stored body fat. But when diabetic patients sprint, the rise in heart rate and activation of the sympathetic nervous system can stimulate endocrine organs to release adrenaline and noradrenaline, as well as promote the breakdown of liver glycogen, causing a sudden spike in blood sugar. If diabetic patients frequently experience elevated and fluctuating blood sugar levels, it can more easily damage organs such as the heart, brain, and kidneys, leading to complications.
Hypertensive patients should avoid squatting and standing up repeatedly.
Squatting and standing up can exercise muscle groups in different parts of the lower limbs while enhancing the heart’s blood supply capacity and promoting respiratory function. However, when hypertensive patients squat, it can compress the abdomen, restrict the movement of respiratory muscles, and prevent deep enough breathing, leading to insufficient oxygen in the blood. Additionally, the contraction of muscle blood vessels can reflexively cause a sudden spike in blood pressure. For hypertensive patients, this is like adding fuel to the fire.
Moreover, suddenly standing up quickly after squatting can cause a temporary reduction in blood supply to the brain, which may easily trigger an ischemic stroke.
Patients with osteoporosis should avoid walking on cobblestone paths.
Walking on cobblestone paths can stimulate acupoints on the soles of the feet and promote overall blood circulation. However, osteoporosis patients often also suffer from the degeneration of soft tissue and cartilage. Walking on cobblestones can exacerbate wear on affected areas, leading to knee swelling and pain. Additionally, osteoporosis reduces the hardness of the heel bone. Walking on hard and uneven cobblestones can cause damage to the sole tissues, leading to plantar fasciitis and resulting in intense localized pain.