{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T16:22:21Z","timestamp":1783441341831,"version":"3.54.6"},"reference-count":22,"publisher":"Korean Academy of Rehabilitation Medicine","issue":"3","license":[{"start":{"date-parts":[[2022,6,30]],"date-time":"2022-06-30T00:00:00Z","timestamp":1656547200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["e-arm.org"],"crossmark-restriction":true},"short-container-title":["Ann Rehabil Med"],"published-print":{"date-parts":[[2022,6,30]]},"abstract":"<jats:p>Objective To compare the predicted and actual maximal heart rate (HRmax) values in the cardiopulmonary exercise test (CPET).Methods We retrospectively investigated 1,060 patients who underwent a CPET between January 2016 and April 2020 at our institution\u2019s cardiopulmonary rehabilitation center. The following patients were included: those aged &gt;20 years, those tested with a treadmill, and those who underwent symptom-limited maximum exercise testing\u2014 reaching \u226585% of the predicted HRmax (62% if taking beta-blockers) and highest respiratory exchange ratio \u22651.1. Ultimately, 827 patients were included in this study. Data on diagnosis, history of taking beta-blockers, age, body mass index (BMI), and CPET parameters were collected. Subgroup analysis was performed according to age, betablockers, BMI (low &lt;18.5 kg\/m2, normal, and high \u226525 kg\/m2), and risk classification.Results There was a significant difference between the actual HRmax and the predicted value (p&lt;0.001). Betablocker administration resulted in a significant difference in the actual HRmax (p&lt;0.001). There were significant differences in the moderate-to-high-risk and low-risk groups and the normal BMI and high BMI groups (p&lt;0.001). There was no significant difference between the elderly and younger groups. We suggest new formulae for HRmax of cardiopulmonary patients: estimated HRmax=183-0.76\u00d7age (the beta-blocker group) and etimated HRmax=210-0.91\u00d7age (the non-beta-blocker group).Conclusion Age-predicted HRmax was significantly different from the actual HRmax of patients with cardiopulmonary disease, especially in the beta-blocker group. For participants with high BMI and moderate-tosevere risk, the actual HRmax was significantly lower than the predicted HRmax.<\/jats:p>","DOI":"10.5535\/arm.21181","type":"journal-article","created":{"date-parts":[[2022,6,29]],"date-time":"2022-06-29T07:16:48Z","timestamp":1656487008000},"page":"133-141","update-policy":"https:\/\/doi.org\/10.5535\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Is Age-Predicted Maximal Heart Rate Applicable in Patients With Heart or Lung Disease?"],"prefix":"10.5535","volume":"46","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0558-1399","authenticated-orcid":true,"given":"Sang Hun","family":"Han","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7231-8670","authenticated-orcid":true,"given":"Min 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Won","family":"Hong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4849-5228","authenticated-orcid":true,"given":"Sang Hun","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5026-1696","authenticated-orcid":true,"given":"Yong Beom","family":"Shin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7250-8909","authenticated-orcid":true,"given":"Byeong Ju","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3481","reference":[{"key":"ref1","first-page":"303","volume-title":"Heart rate and exercise intensity during sports activities: practical 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