Key result
Deep water running test exercise capacity was reproducible but lower compared with treadmill testing in healthy adults older than 45 years.
Why the study?
Does protocol duration affect peak VO2 during deep water running, and how does it compare to treadmill testing in healthy adults >45 years?
Observational (n=24)
Does protocol duration affect peak VO2 during deep water running, and how does it compare to treadmill testing in healthy adults >45 years?
A 6- to 12-minute deep water running test provides reproducible peak VO2 measurements, though values are lower than those obtained during treadmill testing in healthy older adults.
Answers are grounded in this paper and cite their sources.
Supports reproducible VO2 assessment via deep water running in adults >45; leaves open equivalence to treadmill for clinical decisions.
OBJECTIVE: The aim of this study was to (1) compare the peak oxygen uptake across three protocols of different duration during an incremental deep water running test to exhaustion; (2) study the reproducibility of peak Vo2 during two repeated incremental deep water running tests; (3) compare peak deep water running test and treadmill cardiopulmonary responses in adults older than 45 yrs. DESIGN: First, 24 healthy subjects older than 45 yrs (60 yrs [6 yrs], body mass index: 28 kg/m [6 kg/m], 11 men/13 women) performed three incremental deep water running tests (< or =8 mins, 8-12 mins, and > or =12 mins) with measurement of peak Vo2 (optimization group). Nineteen subjects of the 24 original subjects (reproducibility group) then performed two repeated maximal deep water running tests. Finally, 21 of the 24 original subjects also performed an additional maximal treadmill test (comparison group). Peak Vo2 was compared with analyses of variance for repeated measurements for the optimization, reproducibility, and comparison groups. RESULTS: Peak Vo2 (ml/min) did not differ according to protocol duration (short: 1529 [674]; intermediate, 1456 [594]; and long, 1465 [674] ml/min, P = 0.53), was reproducible with an intraclass correlation coefficient of 0.90 (P < 0.0001), and was lower compared with treadmill (deep water running test: 1615 [586] vs. T: 2545 [511] ml/min, P < 0.0001). CONCLUSIONS: A 6- to 12-min protocol duration can be used to assess deep water running test peak Vo2, which is reproducible and lower compared with that obtained on the treadmill in healthy subjects older than 45 yrs.
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Gayda et al. (2010) conducted an observational in Healthy adults (n=24). Deep water running test vs. Treadmill test was evaluated on Peak oxygen uptake (VO2) (p=<0.0001). Deep water running test exercise capacity was reproducible but lower compared with treadmill testing in healthy adults older than 45 years.
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