What Session Am I Protecting Today?
Trail Notes | Training & Structure
protect the session that matters
What Session Am I
Protecting Today?
On paper, training plans are neat. Key sessions, strength days, recovery days, all in the right order. In real life, there is a 5:15 gym crew you love, a fartlek that matters for the build, and a body that wants to carry both.
The question that keeps coming up is some version of: can I do strength before my key run today? The honest answer is, sometimes yes, sometimes no. But the better question is the one underneath it.
What session am I protecting today? Once you know that, the order, the dose, and the choice between strength first or run first all become easier to answer.
Name the session you are protecting, and the rest of the day organises itself around it.
The order is not the goal. Protecting the right stimulus is.
Trail Note · 01
What is actually happening when you lift first
When you put hard strength in front of a key run, you are asking your muscles and your nervous system to show up twice in close succession. Strength creates local fatigue, mostly in quads, glutes and calves, and uses a chunk of the sharpness you would otherwise spend on the run.
When this is fine
An easy or moderate run later that day.
A short, support-style lift focused on activation, core and stability.
A long enough recovery window between the two, ideally several hours plus a meal.
When it costs you
Threshold, VO2 or hill rep sessions later the same day.
Heavy squats, lunges or RDLs immediately before a key run.
A short turnaround with no fuel in between.
In those cases, run quality is what gets compromised first.
If the run is the session you have built toward for weeks, the run is the one you protect. Strength that day shifts to support it, not to compete with it.
Trail Note · 02
The four questions that order the day
When the schedule is messy, run through these in order. The answers usually tell you what to keep, what to soften, and what to move.
Question 01
What quality am I protecting today?
Threshold. Climbing. Long run durability. Speed. Naming it makes everything else clearer. Once you know the protected session, every other decision cascades from there.
Question 02
Can I change the strength focus, not the whole day?
Keep the gym time, but make it more core, upper body and light stability when it sits before a big run. You do not have to cancel your 5:15 crew. You just change what the session does.
Question 03
How did my body respond last time?
If you held form through the final reps and were not wrecked for hills and your long run, the stack is probably working. Your body's feedback is real data. Track it.
Question 04
Where am I in the bigger build?
Peak weeks tolerate less. Base and consolidation weeks tolerate more. The same stack can be fine in May and too much in July. Context matters.
Trail Note · 03
Support strength versus max strength
When strength has to come first on a key run day, treat it as support, not maximum load. The work still counts. It just plays a different role.
Support strength, before a key run
Glute activation, balance and single leg work.
Postural and core focus.
Light upper body.
Short, sharp, with no grinding sets.
Max strength, on its own days
Heavy squats, lunges, RDLs and loaded carries.
Best on days that do not sit in front of your biggest run stimulus.
Save the hardest lifting for sessions you can fully commit to.
Trail Note · 04
Where your cycle and life stage fit in
The order question lands differently depending on where you are in your cycle, and differently again in perimenopause and menopause. The same stack can feel easy one week and cooked the next. That is not a discipline problem. That is your body talking.
Higher energy phases, follicular
Stacking a moderate strength session and a key run can feel doable. This is the time to take advantage of a body that recovers quickly between efforts. Your nervous system is more resilient. Use it.
Lower energy and premenstrual phases, luteal
The same stack can tip you into feeling cooked. Best moves are usually:
Shorter, lighter strength on the stacking day, or move it to another day.
One fewer fartlek rep if form starts to fall apart, while keeping effort honest.
Extra attention on pre and post-session fuelling and sleep.
Perimenopause and menopause
Recovery between high-quality sessions usually needs to be longer, and stacking heavy strength with key runs becomes more expensive.
Prioritise the run on a key run day. Treat strength as support, not the main event.
Protect sleep and protein intake around both sessions.
Give yourself more recovery days than you think you need.
Listening and adjusting is not a lack of discipline. It is what keeps you in the game for the whole build, not just a few hero weeks.
Trail Note · 05
Coach notes for the messy weeks
You do not have to choose between a perfect plan on paper and the social anchors that keep training sustainable. You do need to be honest about what you are asking of your body on any given day.
Name the protected session at the start of the week. Knowing which session is non-negotiable changes how everything else is loaded around it. Write it down. Tell your training partners. Make it real.
Keep the community sessions, change their job. Your 5:15 crew can be a support strength day rather than a max strength day in a hard week. Same people, different dose. The consistency of showing up is valuable. The intensity is flexible.
Track how the stack actually lands. A simple note after each key session: was form holding? Did run quality match the plan? How did the next 48 hours feel? This is how you learn what your body can handle.
Adjust the order, not the goal. A different sequence on a tough week is not a step back. It is the reason you can still nail the session that actually matters. Flexibility in structure is what allows consistency in quality.
The bottom line
The strongest athletes are not the ones who never have to choose. They are the ones who know which session they are protecting today, and let the rest of the day support it.
When you know what matters most on any given day, the messy weeks stop feeling like failures and start feeling like strategy.
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protect the session, let the day support it
Written by the Her Trails coaching team
Trail Notes are evidence-informed coaching journals written for women who train, race and run on trails. Made to be absorbed in a few minutes and remembered for a season.
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