High‐frequency resistance training improves maximal lower‐limb strength more than low frequency

Author:

Pedersen Helene1,Iversen Vegard Moe2,Vereide Pål Frøyen1,Stien Nicolay1,Saeterbakken Atle Hole1,Fimland Marius Steiro23,Schoenfeld Brad J.4ORCID,Andersen Vidar1ORCID

Affiliation:

1. Faculty of Education, Arts and Sports Western Norway University of Applied Sciences Sogndal Norway

2. Department of Neuromedicine and Movement Science Faculty of Medicine and Health Sciences Norwegian University of Science and Technology Trondheim Norway

3. Unicare Helsefort Rehabilitation Centre Rissa Norway

4. Department of Exercise Science and Recreation Lehman College Bronx New York USA

Abstract

AbstractThis study compared the effects of a weekly lower body resistance‐training program divided into low frequency (LOW, one long session) versus high frequency (HIGH, four shorter sessions) in resistance‐trained individuals. Twenty‐two adults with more than 6 months resistance training experience were randomized to either the LOW or HIGH intervention group. Both groups completed an 8‐week training program consisting of four multi‐joint exercises targeting the hip and knee extensors. The program progressed from 12‐repetition maximum (RM) to 6‐RM, with 4–5 sets per exercise performed throughout the intervention. The four exercises were conducted either in one session or four sessions (one exercise per session) per week. 1‐RM in the squat, muscle thickness of the vastus lateralis, muscle mass of the lower body (measured using bioelectrical impedance), and jump height were assessed pre‐ and post‐intervention. The HIGH group demonstrated a statistically significant increase in 1‐RM compared to the LOW group (7 kg, p = 0.01), while no statistically significant differences were found between the groups for the other outcomes (p = 0.26–0.63). Both interventions resulted in statistically significant increases in 1‐RM squat (8 and 15 kg), muscle thickness (2.3 and 2.8 mm), and jump height (1.5 and 1.9 cm) from pre‐to post‐test. There were no statistical changes in lower‐body muscle mass for either group (p = 0.16–0.86). In conclusion, a weekly training protocol of four multi‐joint lower‐limb exercises distributed over four sessions resulted in greater increases in maximal strength compared to one session in resistance‐trained adults. Both frequencies were similarly effective in improving muscle hypertrophy and jump height.

Publisher

Wiley

Reference39 articles.

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