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Table 1 Summary of included studies

From: Maternal physical activity before IVF/ICSI cycles improves clinical pregnancy rate and live birth rate: a systematic review and meta-analysis

Author/year

No. of infertile couples

Treatment

Study type

Contrast

Evaluation of physical activity

Controlling for confounders

Pregnancy outcomes

Morris/2006

2232

IVF

Prospective

Regular exercise > 1 h/week versus no regular exercise

Simple questionnaires

Age, BMI

Miscarriage rate;

Live birth rate

Ferreira/2010

436

ICSI

Prospective

Regular exercise at least 1 h for 3 times/week versus no regular exercise

Validated lifestyle questionnaire

Age

Miscarriage rate;

Clinical pregnancy rate

Kucuk/2010

131

ICSI

Prospective

Moderate physical activity versus low physical activity

IPAQ a

Age, BMI

Implantation rate; Clinical pregnancy rate; Miscarriage rate; Live birth rate

Moran/2011

38

IVF

Prospective

Exercise and diet intervention versus control

Patients participated in the Comprehensive Lifestyle Intervention Program (CLIP)

Age, BMI

Clinical pregnancy rate; Miscarriage rate; Live birth rate

Ramezanzadeh

/2012

236

IVF/ICSI

Prospective

More than 3 h/week moderate-intensity exercise or 5 h/week low-intensity exercise versus not

IPAQ a

None

Implantation rate; Clinical pregnancy rate

Evenson/2014

121

IVF

Prospective

Total activity index ≥10.6 versus < 10.6

Modified Kaiser Physical Activity Survey

Age, BMI

Clinical pregnancy rate; Live birth rate

Palomba/2016

216

IVF/ICSI

Prospective

Regular physical activity versus no regular physical activity

Self-administered semiquantitative general health questionnaires formulated on the basis of Global Physical Activity Questionnaire

Age, BMI

Implantation rate; Clinical pregnancy rate; Miscarriage rate; Live birth rate

Gaskins/2016

273

IVF

Prospective

Total physical activity> 2.5 h/week versus ≤2.5 h/week

A validated questionnaire

None

Clinical pregnancy rate; Miscarriage rate;

Live birth rate

  1. aIPAQ International Physical Activity Questionnaires