Strengthening exercises are a really important addition to any exercise routine. The MS Trust have put together a great video showing you some exercises targeting it.
Here are some other simple exercises that can be done at home to strengthen your arms and legs:
Stand Ups From Chair
Sit upright on a chair or on a box. Feet slightly wider than hip width apart. Arms across chest. Lean forward slightly & stand. Lower slowly back to the chair & repeat. Vary chair height to vary the load. Use minimal momentum to stand. Maintain upright posture throughout. Complete 2-3 sets of 8-10 repetitions. Rest 60 seconds between sets.
Seated shoulder press
Sit on a chair with back support. Hold your dumbbells or water bottle or use your own weight. Place your feet firmly on the floor with hip width apart. Bend your elbows and raise your upper arms to shoulder level and lower down and repeat. Complete 2-3 sets of 8-10 repetitions. Rest 60 seconds between sets.
Seated Calf Raise
Sit with feet flat, ankles under knees. Lift heals upward, keep toes on floor. Pause, lower & repeat. Complete 2-3 sets of 8-10 repetitions. Rest 60 seconds between sets.