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Table 1 Specifications of studies entered into the meta-analysis

From: The effect of exercise on anxiety in the elderly worldwide: a systematic review and meta-analysis

Author, year, reference Place of Type of exercise study Type of exercise Sample size Mean ± SD of before Mean ± SD of after Quality
Khesali, 2018, [17] Iran Tai Chi Chuan 60 41.79 ± 9.5 29.41 ± 7.64 High
Asiachi, 2017, [18] Iran Yoga 30 73.6 ± 6.2 71.3 ± 7.5 Medium
Katula-1, 1999, [19] USA Exercise Light 80 14.79 ± 4.85 13.2 ± 4.03 High
Katula-2, 1999, [19] USA Exercise Moderate 80 14.13 ± 4.07 13.46 ± 4.0 High
Katula-3, 1999, [19] USA Exercise Maximal 80 15.33 ± 5.2 17.16 ± 5.5 High
Cassilhas, 2010, [20] Brazil 24 weeks of resistance exercise 20 62.91 ± 1.3 56.13 ± 3.81 High
Watanabe-1, 2000, [21] Japan Water-based Exercise 36 35.5 ± 7.3 29.1 ± 6.5 Medium
Watanabe-2, 2000, [21] Japan Land-based Exercise 37 36.5 ± 7.3 30.5 ± 6.70 Medium
Teixeira-1, 2013, [22] Portugal Physical Activity Scale (23) 70 37.24 ± 13.48 34.6 ± 5.71 High
Teixeira-2, 2013, [22] Portugal Physical Activity Scale (23) 70 46.68 ± 13.12 36.24 ± 8.82 High
Teixeira-3, 2013, [22] Portugal Physical Activity Scale (23) 70 37.29 ± 9.12 37.45 ± 7.57 High
Teixeira-4, 2013, [22] Portugal Physical Activity Scale (23) 70 46.48 ± 10.97 38.9 ± 8.15 High
Hyun, 2009, [24] Korea Danjeon Breathing Exercise 37 48.69 ± 11.38 41.19 ± 6.88 High
Park, 2011, [25] Korea Tai Chi Exercise 23 50.55 ± 8.76 46.91 ± 14.33 High
Bethany-1, 2005, [26] USA Yoga 11 35.64 ± 8.82 26.36 ± 8.59 High
Bethany-2, 2005, [26] USA Aerobics 11 29.73 ± 8.78 29.0 ± 6.72 High
Bethany-3, 2005, [26] USA Walking 10 33.1 ± 8.94 32.5 ± 7.49 High
Antunes-1, 2005, [27] Brazil Endurance exercise 23 40.78 ± 9.21 28.56 ± 5.5 Medium
Antunes-2, 2005, [27] Brazil Endurance exercise 23 35.08 ± 5.34 29.52 ± 4.85 Medium