In 2012, our randomised trial demonstrated that stretching before sleep reduces the frequency and severity of nocturnal leg cramps in older adults.1 These episodic cramp attacks are characteristic: painful, sustained, involuntary muscle contractions of the calf muscles, hamstrings or feet. The sharp and intense pain may last from seconds to several minutes, accompanied by firm and tender muscles, and in some cases, with plantar flexion of feet and toes.2–5 In his letter, Garrison argues that prophylactic stretching is unlikely to prevent nocturnal leg cramps.
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