Evidence map›Paper›PMID 29512308›Full record

ArticlePhysiological reports2018

Oral contraceptives augment the exercise pressor reflex during isometric handgrip exercise.

Clare Minahan, Hailey O'Neill, Nelie Sikkema, Sarah Joyce, Brianna Larsen, Surendran Sabapathy

Abstract read
In one paragraph

Article in Physiological reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. The effects of oral contraceptives on resting autonomic function and the autonomic response to physiological stressors: a systematic review.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2023
    Pooled it
  2. Pooled it
  3. Altered Blood Pressure Reflexes in Women With Endometriosis.Hypertension (Dallas, Tex. : 1979) · 2025
    Trial
  4. Trial
  5. Trial
  6. Review
  7. Article
  8. Article
  9. Article
  10. The exercise pressor reflex: An update.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2022
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Clare MinahanGriffith Sports Physiology and Performance, Gold Coast, Queensland, Australia.
Hailey O'NeillGriffith Sports Physiology and Performance, Gold Coast, Queensland, Australia.
Nelie SikkemaGriffith Sports Physiology and Performance, Gold Coast, Queensland, Australia.
Sarah JoyceGriffith Sports Physiology and Performance, Gold Coast, Queensland, Australia.
Brianna LarsenGriffith Sports Physiology and Performance, Gold Coast, Queensland, Australia.
Surendran SabapathyMenzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We sought to determine whether oral contraception alters the gender-related differences observed in the exercise pressor reflex during isometric handgrip exercise. Fifteen men, fifteen normally menstruating women (WomenNM), and fifteen women taking monophasic oral contraceptives (WomenOC) completed two trials of a 3-min isometric handgrip exercise protocol performed at 30% of their maximal voluntary contraction: (1) where arterial occlusion was applied to the previously exercising arm during a 3-min recovery period (Occlusion trial); (2) where no arterial occlusion was applied during recovery (Control trial). Handgrip exercise elicited greater increases in mean arterial pressure (MAP) in MEN compared to both female groups (P < 0.05), and in WomenOC compared to WomenNM in both trials (P = 0.01, P = 0.03). After 3 min of recovery, sBP was 12% (P = 0.01) and 9% (P = 0.02) higher in the Occlusion trial when compared to the Control trial for MEN and WomenOC. Conversely, arterial occlusion in recovery from handgrip did not sustain elevated sBP in the Occlusion trial, and sBP returned to recovery levels not different to the Control trial, in WomenNM (P = 0.41). These data indicate that gender-related differences in the metaboreflex during isometric handgrip exercise exist between men and normally menstruating women, but are blunted when men are compared to women taking oral contraceptives. We conclude that the suppression of 17β-estradiol and/or progestogen in women via the administration of oral contraceptives attenuates sex-related differences in the metaboreflex during isometric handgrip exercise.

Indexed as

Hand StrengthIsometric ContractionAdultBaroreflexBlood PressureContraceptives, Oral, HormonalEstradiolFemaleHumansMaleProgesteroneVasoconstrictionContraceptives, Oral, HormonalEstradiolProgesterone17β-estradiolcontraceptionfemale sex hormonesmetaboreflex

Identifiers

PMID29512308
PMCPMC5840454

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.