✓ Practiceby Lab 10 Get started ›
Crossfire

Does how you structure your training programme matter, or just how much you do?

What the experts say

Brad SchoenfeldPhD · exercise scientist, hypertrophy research

Get the load, the volume and the range of motion right and stop optimising the rest

What it rests onThe 2026 ACSM position stand he co-authored synthesised 137 systematic reviews and more than 30,000 participants, and found that training to momentary muscle fatigue, equipment type, exercise complexity, set structure, time under tension, blood flow restriction and periodization did not consistently impact training outcomes; what did was load at or above 80% of 1RM for strength, 10 or more weekly sets for hypertrophy, and moderate loads moved fast for power

Source: pubmed.ncbi.nlm.nih.gov ↗
Mike IsraetelPhD · exercise scientist

The programme is the unit that produces the result, not the session

What it rests onHis published system ramps weekly volume across a multi-week block from the least volume that grows a muscle toward the most that can be recovered from, with a worked example moving a muscle from 10 sets in week one to 20 by week four, then resets with an easier week; the block, not the session, is what he asks a lifter to execute

Source: rpstrength.com ↗

Overview

The position stand addresses healthy adults aged 18 and over across 137 reviews, most of whose underlying trials ran 6 to 52 weeks in mixed and largely untrained populations. Israetel's ramp addresses trained lifters already running structured programmes.

A guideline finding no consistent average effect across a heterogeneous literature is not the same claim as no effect in a trained lifter, and flattening it misrepresents the guideline as much as the practitioner.

Where they agree

They agree on the variables that survived: load, weekly volume, full range of motion, progression. They agree that more than you can recover from is the real failure mode. Neither claims periodization is harmful. The dispute is whether structuring those variables across weeks adds anything on top of getting them right, and the guideline's answer is that the evidence does not consistently show that it does.

What would settle it

Trials directly comparing a periodized block against an equated non-periodized programme, run longer than the usual 8 to 12 weeks, in trained lifters rather than students, and measuring adherence alongside hypertrophy. Almost all the periodization literature is short and in untrained subjects, which is why an overview of reviews returns no consistent effect.

Practice does not pick a winner here

You do, and your call is dated, kept, and yours to change. Follow the people you already trust and what they publish turns into a short daily practice.

Get started

Free to sign up and use. We do not ask for a card.