Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.

[Q]: Abstract: Twenty-two patients with evidence of systemic vasculitis and peripheral neuropathy were clinically and electrophysiologically investigated in a retrospective study. Ten had a polyarteritis nodosa, 6 a probable polyarteritis nodosa, and 6 a Churg-Strauss syndrome. Nine patients presented clinically with mononeuropathy or mononeuropathy multiplex considered typical of ischemic involvement of peripheral nerve; nine had more diffuse neuropathy, two of them a symmetric polyneuropathy. EMG examination revealed more diffuse neuropathy than clinically predicted. Findings were of acute or subacute axonal neuropathy.
[A]: Peripheral neuropathy in systemic vasculitis: clinical and electrophysiologic study of 22 patients.

[Q]: Abstract: In a survey of wheelchair use in two nursing homes, the authors found a substantial number of cognitively intact nursing home residents who walked, but who also used a wheelchair. Using chart review and interviews with the residents, it was found that multiple physical factors, including pain, strength, endurance, vision and balance, and multiple social and environmental factors, including the fear of falling, were related to the resident's decision to use a wheelchair as an alternative means of mobility. A physical examination focused on aspects of mobility was completed on each resident and was intended to characterize the physical limitations in groups studied. In the nursing home environment, use of the wheelchair is viewed by the residents as a self-initiated choice which the residents believed significantly enhanced their sense of well-being. Finally, there was minimal recognition of mobility as a problem on the part of the medical and nursing staff. The study raises a number of important issues concerning walking versus wheelchair use in the nursing home.
[A]: Wheelchair use by ambulatory nursing home residents.

[Q]: Abstract: Spastic patients were instructed to make accurate, rapid ankle dorsiflexion and plantarflexion movements over different distances to a target. Ankle position and surface electromyograms (EMGs) from tibialis anterior (TA) and soleus (SOL) muscles were recorded. In 3 of 8 spastic patients tested, dorsiflexion evoked velocity-dependent activation of the antagonist (SOL) muscle which impeded the movement to the extent that the limb unintentionally reversed movement direction. We propose that this activation is reflex in origin since it is tightly synchronized, has a large peak amplitude, occurs about 50 ms after the initiation of the movement, and is velocity dependent. One of the 3 patients who had reflex-induced antagonist activation in dorsiflexion also demonstrated sustained clonus during plantarflexion. This usually occurred only if the target had been overshot so that the return of the limb stretched the soleus muscle and triggered clonus. We conclude that in some patients, hyperactive stretch reflexes cause movement deficits.
[A]:
Movement deficits caused by hyperexcitable stretch reflexes in spastic humans.