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July 6, 2025 20 mins

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For full show notes and resources, visit: https://jen.health/podcast/416

What You Will Learn: 

1:43 Introduction to the HIIT vs SIT topic, social media influence, and relevance for perimenopausal/postmenopausal women.

2:52 Clarifying the benefits of HIIT, addressing misconceptions, and emphasizing not demonizing any exercise form.

3:42 Explanation of Sprint Interval Training (SIT), its structure, and exercise examples.

6:58 Comparison of energy expenditure, session length, and rounds for HIIT and SIT.

08:18 How HIIT and SIT affect bone density, especially for women in perimenopause and post-menopause.

09:56 How hormonal changes in women affect suitability of HIIT vs SIT.

12:13 SIT as a lower-stress, high-benefit protocol for VO2 max, insulin sensitivity, and lean mass.

13:13 Summary of Dr. Stacey Sims’ research and recommendations for SIT in midlife women.

14:55 Importance of exercise modifications and gradual progression for all ages and abilities.

17:36 Risks of excessive HIIT, signs of overtraining, and benefits of diversifying exercise routines.

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