Mean %MHR and standard deviation per minute during the yoga session (n = 18). Data from the first four minutes of the 56 minute yoga practice are not displayed. The postures used within each section of the yoga practice (see Table 1) varied in sequence and timing. Minutes 1–24 were sun salutation postures with postures changing every 3–8 seconds; minutes 25–44 were standing poses with postures changing every 10–48 seconds, and minutes 45–52 were sitting and lying postures lasting 3 minutes and 4.5 minutes respectively. Readers are referred to the yoga DVD for a complete description of the yoga session .