Online Physical Activity Intervention for Peri- and Post-menopausal Working Women

The number of participants recruited will be compared to pre-defined progression criteria, based on existing literature, to examine the feasibility of recruitment. This progression criteria will follow a traffic light system; Green = 40-50 participants, Amber = >24 participants, Red = <24 participants.

The proportion of participants who attend at least half of the online physical activity group sessions, which will be compared to progression criteria; Green = >50%, Amber = 25-49%, Red = <25%.

The proportion of participants who remain in the study, compared to progression criteria: Green = >50%, Amber = 25-49%, Red = <25%

Participant responses to the feedback questionnaire, including Likert-scale questions and content analysis of qualitative questions. This will be compared to progression criteria; Green = High satisfaction/acceptability from the majority of participants, with a mean of 7/10 on the Likert-scale questions, Amber = Moderate/Inconsistent satisfaction and acceptability indicated, Red = Low satisfaction/acceptability from the majority of participants

Estimate of the between group effect size for the online physical activity group compared to control group on the International Physical Activity Questionnaire-Short Form (IPAQ-SF), from baseline [Week 0 - 1] to post-intervention and follow-up [Week 8-9 and Week 12-13, respectively]. This will be compared to progression criteria; Green = the between-group effect size is in favour of the intervention, with a substantial number of participants (>50%) showing reliable change (according to the calculated Reliable Change index; Jacobson & Truax, 1991), Amber = between-group effect size is in favour of the intervention arm, with a small number of participants showing reliable change (25-49%), Red = between-group effect size is in favour of the control group, with a minimal number of participants in the intervention group showing reliable change (<25%).

For the IPAQ, greater scores indicate higher physical activity levels (better outcome).

Estimate of the between group effect size of the online physical activity group compared to control group on change on the International Physical Activity Questionnaire - Short Form (IPAQ-SF) from baseline (week 0-1) to post intervention (week 8-9) and follow-up (week 12-13). The IPAQ-SF is a 7-item questionnaire that assesses an individual's physical activity levels (e.g. walking, moderate-intensity, vigorous-intensity) and sedentary behaviour (e.g. sitting). Higher scores on the IPAQ-SF indicates more physical activity.

Estimate of the between group effect size of the online physical activity group compared to control group on change on the Menopause Rating Scale (MRS) from baseline (week 0-1) to post-intervention (week 8-9) and follow-up (week 12-13). The MRS is an 11-item questionnaire that assesses the severity of various menopausal symptoms (somatic, psychological and urogenital) using a 5-point Likert-scale. Higher scores on the MRS indicate greater symptoms severity.

Estimate of the between group effect size of the online physical activity group compared to control group on the change on the Work Productivity and Activity Impairment Questionnaire (WPAI) from baseline (week 0-1) to post-intervention (week 8-9) and follow-up (week 12-13). The WPAI is a self-report questionnaire that measures the impact of a specific health difficulty on work (e.g. absenteeism, work productivity) and daily activities (e.g. household chores, hobbies). Higher scores on the WPAI indicate greater impact on work.

Before the intervention begins, the IPAQ-SF will be completed at baseline (week 0-1) and 1-week later. This will enable a reliability coefficient for the IPAQ-SF to be calculated for this population, which will later be used to calculate the Reliable Change Index (RCI) for participants.