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What to Avoid (Especially Early On) High-intensity interval training (HIIT) in the first 23 weeks Fast-paced group fitness before your energy stabilizes Overtraining without adequate recovery These can worsen fatigue, increase injury risk, or leave you feeling burned out
Cochrane Handbook for Systematic Reviews of Interventions, 205-228
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For three or more groups, one-way ANOVA with Bonferroni multiple comparison were used for parametrically distributed data
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