Exercises with barbells can also stress joints, especially the elbows and shoulders. Also, weight machines or dumbbells may reduce joint stress and allow you to continue weight training without pain. Exercise technique is critical, even for exercises that you take for granted, like walking. When increasing the pace of walking, for example, it's natural to take longer strides. But this can overstress your shins.
Proper technique entails taking more rapid strides without increasing their length.
A small breath of air. Novice exercisers tend to breathe rapidly and shallowly because it feels right. But with this type of breathing, oxygen does not make its way to the depths of the lungs where it's needed. This contributes to a sense of breathlessness. Instead, consciously take longer and deeper breaths.