Abstract
Cardiorespiratory fitness is an independent predictor of cardiovascular events in women; however, maximal oxygen consumption (VO 2max) protocols are not always feasible. The Evaluation of Physical Activity Measures in Middle-Aged Women Study was a 6-week study designed to evaluate six physical activity (PA) measures in women, aged 45-65 years. We investigated the Ebbeling submaximal treadmill (EbbTM) protocol's ability to reflect an active lifestyle in 66 women [median (IQR) age, 51.0 (48.0, 56.5) years]. Participants were screened using ACSM and AHA guidelines and classified as moderate or low cardiovascular risk. VO 2max was estimated using the EbbTM in all participants (TEST1). Moderate risk women repeated the EbbTM (TEST2) while low risk completed a maximal treadmill test. Intraclass correlation coefficients (ICC) and minimal detectable change (MDC 90) score were calculated to examine reliability. Spearman rank order or Pearson product-moment correlation coefficients were used to determine the association between estimated VO 2max and physical fitness and activity measures. Estimated VO 2max from the EbbTM protocol had excellent reproducibility [ICC = 0.95 (95% CI: 0.89, 0.98) and MDC 90 was 1.62 mL kg -1 min -1. The EbbTM protocol was associated with measured VO 2max (ρ = 0.48; ρ = 0.01) and was positively correlated with moderate- (ρ = 0.32; ρ = 0.02), vigorous- (ρ = 0.47; ρ = 0.0005) and moderate-to-vigorous-intensity PA (ρ = 0.36; ρ = 0.009), pedometer steps (ρ = 0.41; ρ = 0.002) and inversely correlated with waist circumference (ρ = -0.58; ρ < 0.0001), body fat (ρ = -0.55; ρ < 0.0001), and right leg endurance (ρ = -0.41; ρ = 0.003). The EbbTM protocol was shown to be reliable and associated with objective measures of fitness and PA in healthy, middle-aged women.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 47-56 |
| Number of pages | 10 |
| Journal | European Journal of Applied Physiology |
| Volume | 111 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2011 |
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Keywords
- Cardiorespiratory fitness
- Estimated oxygen consumption
- Female
- Reliability
- Validity
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Orthopedics and Sports Medicine
- Physiology (medical)
Cite this
Comprehensive evaluation of a single-stage submaximal treadmill walking protocol in healthy, middle-aged women. / Mitros, Melanie; Gabriel, Kelley Pettee; Ainsworth, Barbara; Lee, Chong; Herrmann, Stephen; Campbell, Kathy; Swan, Pamela.
In: European Journal of Applied Physiology, Vol. 111, No. 1, 01.2011, p. 47-56.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Comprehensive evaluation of a single-stage submaximal treadmill walking protocol in healthy, middle-aged women
AU - Mitros, Melanie
AU - Gabriel, Kelley Pettee
AU - Ainsworth, Barbara
AU - Lee, Chong
AU - Herrmann, Stephen
AU - Campbell, Kathy
AU - Swan, Pamela
PY - 2011/1
Y1 - 2011/1
N2 - Cardiorespiratory fitness is an independent predictor of cardiovascular events in women; however, maximal oxygen consumption (VO 2max) protocols are not always feasible. The Evaluation of Physical Activity Measures in Middle-Aged Women Study was a 6-week study designed to evaluate six physical activity (PA) measures in women, aged 45-65 years. We investigated the Ebbeling submaximal treadmill (EbbTM) protocol's ability to reflect an active lifestyle in 66 women [median (IQR) age, 51.0 (48.0, 56.5) years]. Participants were screened using ACSM and AHA guidelines and classified as moderate or low cardiovascular risk. VO 2max was estimated using the EbbTM in all participants (TEST1). Moderate risk women repeated the EbbTM (TEST2) while low risk completed a maximal treadmill test. Intraclass correlation coefficients (ICC) and minimal detectable change (MDC 90) score were calculated to examine reliability. Spearman rank order or Pearson product-moment correlation coefficients were used to determine the association between estimated VO 2max and physical fitness and activity measures. Estimated VO 2max from the EbbTM protocol had excellent reproducibility [ICC = 0.95 (95% CI: 0.89, 0.98) and MDC 90 was 1.62 mL kg -1 min -1. The EbbTM protocol was associated with measured VO 2max (ρ = 0.48; ρ = 0.01) and was positively correlated with moderate- (ρ = 0.32; ρ = 0.02), vigorous- (ρ = 0.47; ρ = 0.0005) and moderate-to-vigorous-intensity PA (ρ = 0.36; ρ = 0.009), pedometer steps (ρ = 0.41; ρ = 0.002) and inversely correlated with waist circumference (ρ = -0.58; ρ < 0.0001), body fat (ρ = -0.55; ρ < 0.0001), and right leg endurance (ρ = -0.41; ρ = 0.003). The EbbTM protocol was shown to be reliable and associated with objective measures of fitness and PA in healthy, middle-aged women.
AB - Cardiorespiratory fitness is an independent predictor of cardiovascular events in women; however, maximal oxygen consumption (VO 2max) protocols are not always feasible. The Evaluation of Physical Activity Measures in Middle-Aged Women Study was a 6-week study designed to evaluate six physical activity (PA) measures in women, aged 45-65 years. We investigated the Ebbeling submaximal treadmill (EbbTM) protocol's ability to reflect an active lifestyle in 66 women [median (IQR) age, 51.0 (48.0, 56.5) years]. Participants were screened using ACSM and AHA guidelines and classified as moderate or low cardiovascular risk. VO 2max was estimated using the EbbTM in all participants (TEST1). Moderate risk women repeated the EbbTM (TEST2) while low risk completed a maximal treadmill test. Intraclass correlation coefficients (ICC) and minimal detectable change (MDC 90) score were calculated to examine reliability. Spearman rank order or Pearson product-moment correlation coefficients were used to determine the association between estimated VO 2max and physical fitness and activity measures. Estimated VO 2max from the EbbTM protocol had excellent reproducibility [ICC = 0.95 (95% CI: 0.89, 0.98) and MDC 90 was 1.62 mL kg -1 min -1. The EbbTM protocol was associated with measured VO 2max (ρ = 0.48; ρ = 0.01) and was positively correlated with moderate- (ρ = 0.32; ρ = 0.02), vigorous- (ρ = 0.47; ρ = 0.0005) and moderate-to-vigorous-intensity PA (ρ = 0.36; ρ = 0.009), pedometer steps (ρ = 0.41; ρ = 0.002) and inversely correlated with waist circumference (ρ = -0.58; ρ < 0.0001), body fat (ρ = -0.55; ρ < 0.0001), and right leg endurance (ρ = -0.41; ρ = 0.003). The EbbTM protocol was shown to be reliable and associated with objective measures of fitness and PA in healthy, middle-aged women.
KW - Cardiorespiratory fitness
KW - Estimated oxygen consumption
KW - Female
KW - Reliability
KW - Validity
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U2 - 10.1007/s00421-010-1615-3
DO - 10.1007/s00421-010-1615-3
M3 - Article
VL - 111
SP - 47
EP - 56
JO - European Journal of Applied Physiology
JF - European Journal of Applied Physiology
SN - 1439-6319
IS - 1
ER -