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<p>Dysmenorrhea and menstrual features have a major impact on patterns of physical activity; however, objective assessments of these associations using accelerometry remain limited. This study aimed to compare sitting and physical activity times, measured using a Fibion accelerometer, during the first three days of menstruation and days 8–10 of the follicular phase in age-matched women with mild and moderate-to-severe primary dysmenorrhea (PD). This observational study included 46 women aged 18–45 years whose primary dysmenorrhea severity was categorized based on the Numeric Pain Rating Scale (NPRS). Symptom severity was measured using Working ability, Location, Intensity, Days of pain, Dysmenorrhea (WaLIDD) and Dysmenorrhea Symptom Interference (DSI) scores. Sitting time and light, moderate, and vigorous physical activity were measured using a Fibion triaxial accelerometer worn for three consecutive days in the menstrual phase (days 1–3) and three consecutive days in the follicular phase (days 8–10). Multiple 2 × 2 mixed ANOVA analyses were used to assess differences between the menstruation and follicular phases in both groups for the outcomes of interest. Chi-square tests were performed to compare self-reported menstruation information. Participants demonstrated similar activity patterns during their menstrual and follicular days and spent most of their time sitting (~ 11&#xa0;h/day), followed by light-intensity activity (~ 3.8–4.0&#xa0;h/day), with considerably less time in moderate activity (~ 34–36&#xa0;min/day) and minimal vigorous activity (&lt; 1&#xa0;min/day). No significant differences in sitting time (p = 0.586), light intensity (p = 0.414), moderate intensity (p = 0.776), or vigorous intensity (p = 0.162) were detected between the two dysmenorrhea groups across both phases. WaLIDD scores were not significantly different for the severity of pain over the last 3 months or the duration of menstrual pain but showed a statistically higher number of pain locations and level of interruption of daily activities in women with moderate-to-severe PD. The DSI differed significantly between the groups in all domains (p &lt; 0.001). While objectively measured physical activity levels did not significantly differ between the menstrual and follicular phases or across dysmenorrhea severity groups, women with moderate-to-severe dysmenorrhea experienced greater symptom interference and disruption of daily activities. According to these results, dysmenorrhea significantly affects self-reported function and the perceived ability to be active during menstruation, even though it may not significantly change overall activity intensity. To clarify the physiological and behavioural mechanisms underlying these relationships, further longitudinal studies are needed.</p>

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Accelerometer measured physical activity and menstrual distress across menstrual and nonmenstrual days in mild and moderate to severe primary dysmenorrhea

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  • 发表日期：

    2026年7月27日

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  • Jenan Ali,
  • Senthil Kumaran D,
  • Ashokan Arumugam

摘要

Dysmenorrhea and menstrual features have a major impact on patterns of physical activity; however, objective assessments of these associations using accelerometry remain limited. This study aimed to compare sitting and physical activity times, measured using a Fibion accelerometer, during the first three days of menstruation and days 8–10 of the follicular phase in age-matched women with mild and moderate-to-severe primary dysmenorrhea (PD). This observational study included 46 women aged 18–45 years whose primary dysmenorrhea severity was categorized based on the Numeric Pain Rating Scale (NPRS). Symptom severity was measured using Working ability, Location, Intensity, Days of pain, Dysmenorrhea (WaLIDD) and Dysmenorrhea Symptom Interference (DSI) scores. Sitting time and light, moderate, and vigorous physical activity were measured using a Fibion triaxial accelerometer worn for three consecutive days in the menstrual phase (days 1–3) and three consecutive days in the follicular phase (days 8–10). Multiple 2 × 2 mixed ANOVA analyses were used to assess differences between the menstruation and follicular phases in both groups for the outcomes of interest. Chi-square tests were performed to compare self-reported menstruation information. Participants demonstrated similar activity patterns during their menstrual and follicular days and spent most of their time sitting (~ 11 h/day), followed by light-intensity activity (~ 3.8–4.0 h/day), with considerably less time in moderate activity (~ 34–36 min/day) and minimal vigorous activity (< 1 min/day). No significant differences in sitting time (p = 0.586), light intensity (p = 0.414), moderate intensity (p = 0.776), or vigorous intensity (p = 0.162) were detected between the two dysmenorrhea groups across both phases. WaLIDD scores were not significantly different for the severity of pain over the last 3 months or the duration of menstrual pain but showed a statistically higher number of pain locations and level of interruption of daily activities in women with moderate-to-severe PD. The DSI differed significantly between the groups in all domains (p < 0.001). While objectively measured physical activity levels did not significantly differ between the menstrual and follicular phases or across dysmenorrhea severity groups, women with moderate-to-severe dysmenorrhea experienced greater symptom interference and disruption of daily activities. According to these results, dysmenorrhea significantly affects self-reported function and the perceived ability to be active during menstruation, even though it may not significantly change overall activity intensity. To clarify the physiological and behavioural mechanisms underlying these relationships, further longitudinal studies are needed.