A patient recovering from pneumonia currently walks 10 minutes per session without dyspnea. Following the standard "10% rule" for safe progression, what is the maximum appropriate duration for the next week's sessions?
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✓ Correct answer: D. 11 minutesThe correct answer is 11 minutes. Safe exercise progression guidelines generally recommend increasing the frequency, intensity, or duration by no more than 10% per week to prevent injury and relapse. 10% of 10 minutes is 1 minute, making the new target 11 minutes ($$$10\times 1.10 = 11$$$). Distractors suggesting 15 or 20 minutes represent aggressive increases (50-100%) that risk overexertion, while maintaining 10 minutes does not facilitate progressive reconditioning.
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