Key result
Seated stepping and handshaking CPX correlates with cycle ergometry but yields ~28% lower peak VO2.
Why the study?
Standard CPX using a treadmill or cycle ergometer is difficult for patients with lower extremity motor dysfunction, prompting the evaluation of a seated stepping and handshaking exercise test.
Does stepping and handshaking cardiopulmonary exercise testing (SHS-CPX) correlate with cycle ergometer testing (CE-CPX) for measuring peak oxygen uptake in healthy adults?
RCT (n=20)
Open-label
Randomly assigned
No
Does stepping and handshaking cardiopulmonary exercise testing (SHS-CPX) correlate with cycle ergometer testing (CE-CPX) for measuring peak oxygen uptake in healthy adults?
SHS-CPX is a feasible and safe submaximal exercise test, achieving approximately 70% of the peak V.O2 seen with standard cycle ergometry.
Cardiopulmonary function is usually assessed by cardiopulmonary exercise testing (CPX) using a cycle ergometer (CE-CPX) or a treadmill, which is difficult in patients with lower extremity motor dysfunction. A stepping and handshaking (SHS) exercise has been developed that can be performed safely and easily while sitting on a chair. This study compared peak oxygen uptake (peak V.O2) between CE-CPX and SHS-CPX in healthy adults and investigated the safety and validity of SHS-CPX. Twenty young adults (mean age 27.8 ± 4.4 years) were randomly assigned to perform CE-CPX or SHS-CPX, with the other test to follow 1–2 weeks later. The peak V.O2, respiratory exchange ratio (RER), peak heart rate, blood pressure, and test completion time were compared between CE-CPX and SHS-CPX. All subjects completed the examination and met the criteria for peak V.O2. SHS-CPX and CE-CPX showed a strong correlation with peak V.O2 (r = 0.85, p < 0.0001). The peak V.O2 (40.4 ± 11.3 mL/min/kg vs. 28.9 ± 8.0 mL/min/kg), peak heart rate (190.6 ± 8.9 bpm vs. 172.1 ± 12.6 bpm), and test completion time (1052.8 ± 143.7 s vs. 609.1 ± 96.2 s) were significantly lower in the SHS-CPX (p < 0.0001). There were no adverse events. The peak V.O2 with SHS-CPX was equivalent to about 70% of that with CE-CPX despite the exercise being performed in a sitting position, suggesting its suitability as a submaximal exercise test.
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Imashiro et al. (2023) conducted an RCT in Healthy adults (n=20). Stepping and handshaking cardiopulmonary exercise testing (SHS-CPX) vs. Cycle ergometer cardiopulmonary exercise testing (CE-CPX) was evaluated on Peak oxygen uptake (peak VO2) (MD -11.5, 95% CI -14.48 to -7.29, p=<0.0001). Seated stepping and handshaking cardiopulmonary exercise testing yielded a peak oxygen uptake that was strongly correlated with cycle ergometer testing (r = 0.85) but significantly lower in absolute value (28.9 vs 40.4 mL/min/kg).
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