One article on PainSci cites Wirth 2007: Strength Training Frequency
PainSci commentary on Wirth 2007: ?This page is one of thousands in the PainScience.com bibliography. It is not a general article: it is focused on a single scientific paper, and it may provide only just enough context for the summary to make sense. Links to other papers and more general information are provided wherever possible.
This study shows that strength and muscle mass increase with training regardless of experience. The increases are described as proportionate to training frequency, and this is a notable exception: most such studies show that increased training frequency does not deliver proportionately greater results. However, in this experiment “all groups showed significant gains in muscle mass with a tendency of better training results when doing two or three training sessions a week. No difference could be found between the groups (beginners/advanced) with the same training frequency.”
~ Paul Ingraham
original abstract †Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.
The major goal of this study was to find a training frequency that promises optimum success in the proliferation of muscle mass by measu- ring muscle size before and 2 weeks after an 8-week training cycle. 30 men with at least half a year (beginner = A) and 30 with at least 2 years (advanced = F) of strength training experience participated in this study. The subjects were divided into six groups of 10 individuals each, who had to go through a hypertrophy training program for arm bends with a frequency of one (A1 / F1), two (A2 / F2) and three (A3 / F3) training sessions per week up to 8 weeks altogether. The size of the elbow flexors was determined by magnetic resonance imaging (MRI). 96 transversal images with a thickness of 1.67 mm were collected per subject. Thus a region 16.03 cm of the upper arm was examined. The statistical handling of the data consisted of an analysis of variance (with a repetition of the measurements) and the Scheffé-test (p < 0.05) as a post-hoc test. Except for the group of advanced athletes and a training frequency of once a week, all groups showed significant gains in muscle mass with a tendency of better training results when doing two or three training sessions a week. No difference could be found between the groups (beginners/advanced) with the same training frequency.
This page is part of the PainScience BIBLIOGRAPHY, which contains plain language summaries of thousands of scientific papers & others sources. It’s like a highly specialized blog. A few highlights:
- Cannabidiol (CBD) products for pain: ineffective, expensive, and with potential harms. Moore 2023 J Pain.
- Inciting events associated with lumbar disc herniation. Suri 2010 Spine J.
- Prediction of an extruded fragment in lumbar disc patients from clinical presentations. Pople 1994 Spine (Phila Pa 1976).
- Characteristics of patients with low back and leg pain seeking treatment in primary care: baseline results from the ATLAS cohort study. Konstantinou 2015 BMC Musculoskelet Disord.
- Effectiveness and cost-effectiveness of universal school-based mindfulness training compared with normal school provision in reducing risk of mental health problems and promoting well-being in adolescence: the MYRIAD cluster randomised controlled trial. Kuyken 2022 Evid Based Ment Health.