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J. Luke Pryor, Brittany Christensen, Catherine G. R. Jackson and Stephanie Moore-Reed

included 10 minutes of treadmill (TM) walking at moderate intensity. Moderate intensity was anchored 12 to 13 on Borg rating of perceived exertion (RPE) scale. 13 Participants rested for 10 minutes in between exercise bouts. Low-impact exercise such as walking has the potential to evoke muscle damage in

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Liane S. Lewis, James Hernon, Allan Clark and John M. Saxton

across different lifestyle PA domains) to accelerometer cut-points that were calibrated during treadmill walking ( Freedson, Melanson, & Sirard, 1998 ; Copeland & Esliger, 2009 ). One would expect these thresholds would have higher validity for walking than free-living activities. Accelerometer cut

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Alexander H.K. Montoye, Jordana Dahmen, Nigel Campbell and Christopher P. Connolly

alternate body location. In a previous study, Connolly et al. ( 2011 ) examined accuracy of four hip-worn PA monitors (3 pedometers, 1 accelerometer) for step counting during treadmill walking in second and third trimester pregnant women, finding that only two of the devices (both pedometers: New Lifestyle

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Charity B. Breneman, Christopher E. Kline, Delia West, Xuemei Sui and Xuewen Wang

 min three times per week), weight stable for the previous 3 months (±3%), nonsmoking, and no physical/mental limitations interfering with their ability to walk on a treadmill or to adhere to an exercise intervention. The research protocol for the WEWALK study was approved by the University of South

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Ítalo Ribeiro Lemes, Xuemei Sui, Stacy L. Fritz, Paul F. Beattie, Carl J. Lavie, Bruna Camilo Turi-Lynch and Steven N. Blair

85% of age-predicted maximal heart rate (200 – age) during the treadmill test (n = 65); those who reported a history of heart attack (n = 169), stroke (n = 67), cancer (n = 93), or abnormal electrocardiogram (n = 139); and who were underweight condition (body mass index [BMI] <18.5, n = 116

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Joseph M. Stock, Ryan T. Pohlig, Matthew J. Botieri, David G. Edwards and Gregory M. Dominick

electrode sensors prior to being worn. Both wrist devices were worn according to manufacturer instructions ( Fitbit, 2017b ; Polar Electro Oy, 2013 ). The measurement protocol included the following phases, performed in sequential order: seated rest (5 minutes) and treadmill exercise that consisted of a

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Jaqueline P. Batista, Igor M. Mariano, Tállita C.F. Souza, Juliene G. Costa, Jéssica S. Giolo, Nádia C. Cheik, Foued S. Espindola, Sarah Everman and Guilherme M. Puga

of resistance exercises, aerobic exercise on a treadmill, mat Pilates, and a control session. The study design is shown in Figure  1 . Figure 1 —Study design. Participants A total of 16 women (55.3 ± 6.9 years, 67.2 ± 9.1 kg, and 27.7 ± 3.4 kg/m 2 ) were included in this study. The women were all

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Morgan N. Clennin and Russell R. Pate

, data collection, and measurement are available in the NNYFS manual. 25 Cardiorespiratory Fitness Cardiorespiratory fitness was measured using a standard submaximal treadmill test. Trained staff determined the treadmill test protocol using a participant’s age, sex, body mass index, and self

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Gi Broman, Miguel Quintana, Margareta Engardt, Lennart Gullstrand, Eva Jansson and Lennart Kaijser

The aim of the study was to examine submaximal and maximal physiological responses and perceived exertion during deep-water running with a vest compared with the responses during treadmill running in healthy elderly women. Eleven healthy women 70 ± 2 years old participated. On two different occasions they performed a graded maximal exercise test on a treadmill on land and a graded maximal exercise test in water wearing a vest. At maximal work the oxygen uptake was 29% lower (p < .05), the heart rate was 8% lower (p < .05), and the ventilation was 16% lower (p < .05) during deep-water running than during treadmill running. During submaximal absolute work the heart rate was higher during deep-water running than during treadmill running for the elderly women. The participants had lower maximal oxygen uptake, heart rate, ventilation, respiratory-exchange ratio, and rate of perceived exertion during maximal deep-water running with a vest than during maximal treadmill running. These responses were, however, higher during submaximal deep-water running than during treadmill running.

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Zachary C. Pope, Nan Zeng, Xianxiong Li, Wenfeng Liu and Zan Gao

were collected via indirect calorimetry with a Cortex Metalyzer II metabolic cart (Cortex; Germany). Briefly, the exercise tests were performed on a Pulsar treadmill (H/P/Cosmos; Willich, Germany), with participants wearing a mask attached to the metabolic cart. The metabolic cart conducted indirect