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A comparative study of the five-repetition sit-to-stand test and the 30-second sit-to-stand test to assess exercise tolerance in COPD patients.
Zhang Q, Li YX, Li XL, Yin Y, Li RL, Qiao X, Li W, Ma HF, Ma WH, Han YF, Zeng GQ, Wang QY, Kang J, Hou G. Zhang Q, et al. Among authors: li yx, li xl, li w, li rl. Int J Chron Obstruct Pulmon Dis. 2018 Sep 10;13:2833-2839. doi: 10.2147/COPD.S173509. eCollection 2018. Int J Chron Obstruct Pulmon Dis. 2018. PMID: 30237707 Free PMC article.
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