Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to exercise a dog with arthritis [title] Identify the right kind of exercise for your arthritic dog. [step] The least pain-inducing exercises for dogs with arthritis are low impact and high resistance exercises. Low impact exercises lessen the weight that is applied to the joints, making them more comfortable for dogs with joint pain.

Ending1: [substeps] Start by just doing low impact exercises, like cardio or swimming, every day. If you are exercising with your arthritis, try to include some low intensity exercises as well, like walking, biking, rowing, hiking or hitting the gym. Ending2: High resistance exercises, on the other hand, are exercises that provide high resistance to the muscles being exercised, making them more developed and larger without stressing the joints. [substeps] Examples of low impact and high resistance exercises include swimming and walking on an underwater treadmill. Ending3: [substeps] Lower impact exercise is less effective for joints with arthritis than high impact exercises, typically for home use only. These forms of exercise may be uncomfortable or excessive for your arthritic dog, but they are easy for your dog to do. Ending4: Plan to do exercises that are low impact for several days every week. Limit these exercises while the arthritis heals.

Answer format: ending1/ending2/ending3/ending4