In this issue
- Lifting works for women at every age A
- Pace matters, not only step count B
- Older adults going vegan lost muscle unless they lifted B
- Plant vs animal protein: closer than you'd think C
- Creatine helped jump power in vegans C
- A cool soak after hard training: maybe, maybe placebo D
Strength
1. Lifting works for women at every age
Across 126 studies, resistance training clearly improved strength in women before and after menopause, with small gains in lean mass and small drops in fat mass. Age, frequency and program length didn't change the result much.
- Study type: Systematic review and meta-analysis
- Size: 126 studies, 4,019 healthy women
- How much to trust it: A Strong: large or pooled, consistent evidence. Large pooled evidence. Programs varied a lot, so it can't say which plan is best.
What it means for training: Women don't need a separate rulebook. Standard progressive strength training is a sound default at any age.
Source: It's never too late: The impact of resistance training on strength and body composition in females across the lifespan - A systematic review and meta-analysis. J Sci Med Sport, Sep 2026. PubMed 41963141 · DOI
Walking
2. Pace matters, not only step count
In UK Biobank adults wearing wrist trackers, 7,500–10,000 steps a day was linked to the lowest risk of early death. People under 5,000 steps who walked briskly in their best 30 minutes also had lower risk than slow walkers.
- Study type: Prospective cohort (observational)
- Size: 64,743 adults, average age 61
- How much to trust it: B Good: solid design, some limits. Big, device-measured sample, but it shows links, not cause and effect.
What it means for training: If you can't hit a big step number, make some of your walking brisk. Adding up about 30 brisk minutes across the day may be a useful target.
Source: Combinations of stepping intensity and daily step counts against all-cause and cardiovascular disease mortality: insights from a device-based prospective study. Br J Sports Med, Sep 2026. PubMed 42711120 · DOI
Nutrition
3. Older adults going vegan lost muscle unless they lifted
Adults 65+ who switched to a self-chosen vegan diet ate about 19–28 g less protein a day and lost thigh muscle over 12 weeks. A vegan group that also did resistance exercise lost about half as much.
- Study type: Randomized controlled trial, 12 weeks
- Size: 72 healthy adults aged 65+
- How much to trust it: B Good: solid design, some limits. Well-measured RCT, but short and modest in size. The diet was self-chosen, not protein-planned.
What it means for training: Plant-based eating can work, but plan the protein (dal, tofu, soy, paneer if you eat dairy) and keep lifting, especially after 60.
Source: A self-selected vegan diet reduces skeletal muscle mass in healthy older adults: a randomized controlled trial. Am J Clin Nutr, Sep 2026. PubMed 42680254 · DOI
Nutrition
4. Plant vs animal protein: closer than you'd think
Animal proteins (mostly milk-based) had a slight edge for muscle building, and only clearly in people over 65. In younger adults the difference was small and uncertain.
- Study type: Systematic review and meta-analysis
- Size: 12 studies in healthy adults
- How much to trust it: C Early: small or uncertain. Few studies and wide uncertainty. Measures short-term muscle building, not long-term gains.
What it means for training: Under 65, total daily protein matters more than the source. Older lifters may want slightly larger servings or a mix of sources.
Source: Effects of Plant- vs Animal-Based Proteins on Muscle Protein Synthesis: A Systematic Review With Meta-Analysis. J Acad Nutr Diet, Sep 2026. PubMed 42055214 · DOI
Supplements
5. Creatine helped jump power in vegans
Four weeks of creatine (0.1 g per kg of body weight a day) improved jump performance in active vegans. Sprint, grip and pulling strength didn't change. Some weight gain was water.
- Study type: Randomized, placebo-controlled trial, 4 weeks
- Size: 20 active vegan adults
- How much to trust it: C Early: small or uncertain. Well-blinded but very small and short. One author advises a creatine company (disclosed).
What it means for training: Fits the wider creatine evidence (graded A in our supplement guide). Expect small power gains, not big strength jumps, and a little water weight. Check with your doctor first if you have kidney concerns.
Source: Does creatine supplementation improve strength and power in physically active individuals on a vegan diet? a randomized, triple-blind, placebo-controlled trial. Eur J Appl Physiol, Oct 2026. PubMed 42390589 · DOI
Recovery
6. A cool soak after hard training: maybe, maybe placebo
After a 3-hour rugby session, 8 minutes in 15 °C water didn't clearly improve next-day endurance. Compared with each player's baseline, results looked a little better, but the authors say a placebo effect can't be ruled out.
- Study type: Randomized crossover trial
- Size: 11 male college rugby players
- How much to trust it: D Weak: very small or inconclusive. Tiny, men only, and the main comparison wasn't significant.
What it means for training: If you enjoy a cool soak before a next-day endurance session, it's unlikely to hurt, but don't expect much. If your goal is muscle growth, skip it right after lifting. See our trends page.
Source: Effects of cold-water immersion after rugby-specific training on endurance performance. J Sports Med Phys Fitness, Sep 2026. PubMed 42741893 · DOI
How we grade
- A Strong: large or pooled, consistent evidence
- B Good: solid design, some limits
- C Early: small or uncertain
- D Weak: very small or inconclusive
Grades reflect study design, size and consistency, not whether we like the result.
Get the digest weekly
New studies in plain English, with what they mean for your training. Free. Unsubscribe anytime.
← All issues · Supplement guide · Trends · Laws & Research
Education only, not medical advice. This digest summarizes published research for general education. It is not medical, nutrition or training advice, and nothing here is meant to diagnose, treat, cure or prevent any condition. Single studies can be wrong or later overturned, and our summaries simplify them, so read the original paper. Talk to your doctor or another qualified professional before changing your exercise, diet or supplements, especially if you are pregnant, take medication or have a health condition. We have no ties to the researchers, journals or any product mentioned.