Physiological and Fitness Adaptations after Eight Weeks of High-Intensity Functional Training in Physically Inactive Adults

The purpose of this study was to characterize high-intensity functional training (HIFT) in physically inactive adults. Four men and 10 women who were inexperienced with HIFT and not performing regular physical activity performed HIFT 3 days/week for 8 weeks. Health and fitness measures were assessed...

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Bibliographic Details
Main Authors: Matthew F. Brisebois (Author), Brandon R. Rigby (Author), David L. Nichols (Author)
Format: Book
Published: MDPI AG, 2018-11-01T00:00:00Z.
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Summary:The purpose of this study was to characterize high-intensity functional training (HIFT) in physically inactive adults. Four men and 10 women who were inexperienced with HIFT and not performing regular physical activity performed HIFT 3 days/week for 8 weeks. Health and fitness measures were assessed before and after the intervention. Resting heart rate (73 &#177; 12 vs. 68 &#177; 11 bpm) and resting diastolic blood pressure (71 &#177; 7 vs. 65 &#177; 6 mmHg) were reduced, while resting systolic blood pressure remained unchanged. Absolute VO<sub>2max</sub> (2.53 &#177; 0.68 vs. 2.69 &#177; 0.66 L/min) and relative VO<sub>2max</sub> (32.51 &#177; 8.84 vs. 34.31 &#177; 8.63 mL/kg/min) were improved. Lean body mass (48.20 &#177; 13.37 vs. 49.26 &#177; 13.81 kg) was increased, but fat mass was unchanged. Performance on the leg press (164.61 &#177; 54.35 vs. 201.62 &#177; 67.50 kg), bench press (39.12 &#177; 20.15 vs. 46.43 &#177; 21.18 kg), YMCA bench press (26 &#177; 13 vs. 37 &#177; 16 reps), one-minute sit-up (25 &#177; 9 vs. 32 &#177; 10 reps), and sit-and-reach (30.36 &#177; 11.36 vs. 32.14 &#177; 9.66 cm) were all increased. High-intensity functional training may be useful for improving health-related physical fitness parameters in physically inactive adults.
Item Description:2075-4663
10.3390/sports6040146