Exercise
Resistance training is the best exercise for perinatal sleep
At a glance
| Study type | Meta-analysis |
|---|---|
| Year | 2026 |
| Journal | BMC Pregnancy and Childbirth |
| Effect size | Ranked #1 among exercise modalities |
| Population | Pregnant |
| Dose / protocol | 1-2x/week, 30-60 min resistance training |
Background
A 2026 network meta-analysis ranking exercise modalities for perinatal sleep quality found resistance training, performed 1–2 times per week for 30–60 minutes, to be the most effective intervention — outranking aerobic exercise, yoga, and stretching.
What did the network meta-analysis actually compare?
Guo and colleagues pooled randomized controlled trials of pregnant or postpartum participants and compared aerobic exercise, resistance training, mind-body exercise (yoga, tai chi, Pilates), and combined modalities against control. They ranked each by SUCRA (surface-under-the-cumulative-ranking-curve) for sleep quality.
Why might resistance training beat aerobic exercise for sleep?
Mechanistic candidates: greater post-exercise homeostatic sleep pressure from muscle work, larger downstream effects on insulin sensitivity (which the Mason 2022 PNAS paper shows is tightly coupled to sleep quality), and reduced perinatal back/pelvic pain from increased muscle support — pain being a major fragmenter of pregnancy sleep.
Is resistance training safe in pregnancy?
ACOG endorses resistance training in uncomplicated pregnancy, with form modifications as the abdomen grows (avoiding supine after first trimester, reducing maximal Valsalva). The trials in Guo's analysis used moderate intensity, which is the relevant evidence base — not powerlifting volumes.
What about postpartum?
Postpartum resistance training appears safe after clearance from a clinician (typically 6 weeks), with separate considerations for diastasis recti and pelvic-floor recovery. The sleep benefit signal in the analysis extended into the postpartum subgroup.
How does Solas apply this?
Solas suggests resistance-focused movement on at least one weekday for users in second or third trimester or postpartum, surfaces the SUCRA-ranking finding when you ask why, and lets users record bodyweight or strength-training sessions in the activity log.
Source
Guo L, Song H, Suo L, Yang J, Lv X, Han W
(2026).
Optimal types and doses of exercise for improving sleep quality in perinatal women: a systematic review and network meta-analysis based on randomized controlled trials BMC Pregnancy and Childbirth.
DOI: 10.1186/s12884-026-08673-6
Read the original paper →
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