Understanding the Menstrual Cycle & What It May Mean for Strength Training

The menstrual cycle is a normal, cyclical process that reflects changes in reproductive hormones across the month. Yet for many women, it’s something they’re taught to “push through” or ignore — especially in the gym.

In reality, hormonal fluctuations across the menstrual cycle can influence energy levels, recovery, strength expression, motivation, and perception of effort for some women. Importantly, this does not mean women are fragile, inconsistent, or limited, it simply means that context matters.

The Menstrual Cycle: A Brief Overview

A typical menstrual cycle lasts around 28 days, though anything from 21–35 days is considered normal. The cycle is regulated primarily by fluctuations in oestrogen and progesterone, and is usually divided into four phases:

1. Menstrual Phase

2. Follicular Phase

3. Ovulatory Phase

4. Luteal Phase

Not every woman experiences noticeable changes across these phases, but many do, and awareness can be a powerful tool.

1. Menstrual Phase (Days 1–5)

What’s happening hormonally:Both oestrogen and progesterone are at their lowest. This phase begins with menstruation (bleeding).

Common experiences (vary widely):

• Fatigue or lower energy

• Cramps, headaches, or back pain

• Reduced motivation

• Increased need for rest

Strength training considerations: For some women, heavy training during this phase may feel more challenging, particularly in the first 1–2 days. Others feel completely unaffected.

Possible approaches:

• Prioritise technique-focused sessions

• Use lower volumes or RPE-based loading

• Emphasise mobility, tempo work, or accessories

• Respect rest days if symptoms are significant

Key point: Needing to scale training during menstruation is not weakness — it’s responsiveness.

2. Follicular Phase (Days 6–13)

What’s happening hormonally:Oestrogen begins to rise, while progesterone remains low. The body is preparing for ovulation.

Common experiences:

• Improved energy and mood

• Increased motivation and focus

• Faster recovery

• Higher pain tolerance

Strength training considerations: This phase is often associated with strong performance potential.

Many women report:

• Feeling stronger and more powerful

• Better tolerance to higher training volumes

• Increased confidence under load

Training opportunities:

• Progressing loads

• Higher-intensity compound lifts

• Skill acquisition and technical work

• Testing strength or pushing performance goals

This phase can be an excellent time to lean into progressive overload, if recovery allows.

3. Ovulatory Phase (Around Days 14–16)

What’s happening hormonally: Oestrogen peaks and a surge in luteinising hormone triggers ovulation.

Common experiences:

• High energy and confidence

• Strong social and competitive drive

• Feeling powerful or explosive

Strength training considerations: Some women experience their best strength expression during this phase.

Potential benefits:

• Maximal or near-maximal lifting

• Power-based work (e.g., jumps, Olympic lifts)

• Performance-focused sessions

However, some research suggests a slightly increased risk of ligament injury around ovulation due to hormonal effects on connective tissue. This doesn’t mean avoiding training — it simply reinforces the importance of:

• Good warm-ups

• Solid technique

• Appropriate load management

4. Luteal Phase (Days 17–28)

What’s happening hormonally: Progesterone rises, and oestrogen fluctuates before both hormones drop toward the end of the cycle.

Common experiences:

• Increased body temperature

• Slower recovery

• Reduced tolerance to high volumes

• PMS symptoms (for some): bloating, irritability, low mood, fatigue

Strength training considerations:This phase can feel more demanding, particularly in the late luteal (pre-menstrual) period.

Helpful strategies may include:

• Maintaining intensity but reducing volume

• Longer rest periods

• RPE-based autoregulation

• Emphasising sleep, nutrition, and hydration

• Shifting focus to movement quality over load progression

It’s important to note that strength does not disappear in this phase — it may just feel harder to access.

Individual Variability Matters Most

One of the biggest misconceptions about menstrual cycle–based training is that it should look the same for everyone. In reality:

• Some women notice clear patterns

• Some notice subtle changes

• Some notice none at all

• Hormonal contraception can alter or blunt these fluctuations

The goal is awareness, not restriction.

Tracking your cycle alongside training performance, mood, sleep, and recovery can help identify patterns — and allow training to work with your body, rather than against it.

What This Means for Women Who Lift

Understanding the menstrual cycle:

• Does not mean you must change your program every week

• Does not mean avoiding heavy lifting

• Does not limit long-term strength gains

Instead, it can:

• Improve self-trust and body awareness

• Reduce guilt around low-energy days

• Support better long-term consistency

• Encourage sustainable training habits

At Strength Your Way, the aim is always to build strong, capable women — physically and mentally — by respecting individual needs while still pursuing performance.

Takeaway

The menstrual cycle is not a barrier to strength training, it’s a context. When women are educated about their physiology and supported with flexible, responsive programming, strength training becomes not only effective, but empowering.

If you’re curious about how your cycle may be interacting with your training, start by noticing — not judging — your experience. Strength is not just what you lift on your best day; it’s the consistency you build across all of them.