For any form of weight lifting, consider bench press wrist support.
Walking regularly has a wide range of benefits besides helping you to lose weight of course. One of its benefits is that it helps reduce the risk of various health problems, including coronary heart disease, stroke, diabetes, osteoporosis, and arthritis. It also reduces cholesterol and body fat. Furthermore, it has psychological and social benefits: it improves your mental well-being, and you get to meet people through walking clubs.
If you have been walking regularly, then you may want to make it more challenging. After all, the more intense the exercise, the more calories your burn off.