Tivity Health, Inc.

who participated with us. We will continue to focus on testing and optimizing for personalization that drives increased revenue. During future calls, I'll provide specific examples of how our digital engagement strategy can drive increased utilization in 2022. As I mentioned earlier, I'm pleased that we'll begin combating seniors' social isolation with our SilverSneakers Connect offering, which delivers a personalized social network for our seniors intended to improve health and wellness. The pandemic dramatically exacerbated feelings of isolation, and we are excited and ready to help our members make meaningful social connections. SilverSneakers Connect will go live with two large clients beginning in January of 2022, and I look forward to updating you on our progress. In conclusion, I'm pleased with the strong growth in revenue and visits during the second quarter, underscoring that our expectations for a return to pre-COVID participation level in 2022 are on track. Our continued momentum on our strategic initiatives is advancing our progress toward becoming the modern destination for healthy living. I continue to be impressed with our team and their focus and attention on supporting our members on their path to better health. I'll now turn the call over to Adam.

Thank you, Richard. Today we reported adjusted EBITDA of $41.5 billion, reflecting the continued strength of our business. Revenues for the second quarter were $120.1 million. SilverSneakers revenue was $90.7 million, an increase of $42 million, or 85%, over the prior year period, driven by an increase in revenue-generating visits. As expected, revenue from fixed per-member per-month fees declined to 47% of our total SilverSneakers revenue, compared to 88% in the same period last year. We expect this percentage to continue to decline as we move through the remainder of 2021 and generate more member visits as part of our overall revenue mix, getting us closer to our more typical mix as the country continues to emerge from the pandemic. We ended the quarter with 17.7 million health plan members eligible for silver sneakers, an increase of 8% year over year. And we are on track to meet our expectations of approximately 18 million eligible members by year end through monthly age ends. Total SilverSneakers visits were 15.3 million during the second quarter of 2021 compared to 3.1 million for the same period last year, with monthly average participation of 3.8% compared to 1.1% last year. Within the 15.3 million visits, 875,000 visits were live virtual with Instructor. And now to Prime. We generated 23.4 million of revenue in Q2, an increase of 4.3 million over the same period last year. We ended the quarter with 228,000 active Prime subscribers compared to 235,000 subscribers at the end of the second quarter in 2020. Although we average a lower subscriber count during the second quarter of 2021 compared to last year, Prime revenue was higher due to the reactivation of certain large corporate clients such as Walmart, which had temporarily suspended its Prime program during the height of the pandemic last year. We had approximately 3.3 million gym visits from Prime in the second quarter of 2021 compared to 800,000 in the prior year period. For Whole Health Living, during Q2, we recognized $5.7 million in revenue, a slight increase to last year. Finally, other revenue decreased by approximately $9 million over the second quarter of 2020 due to a decrease in wisely well revenue, as well as revenue from a well-being program with a large employer. Consistent with our remarks in last year's Q2 call, the revenue for this well-being program did not recur this year. Turning to our Q2 2021 balance sheet and cash flow, we ended the second quarter with cash on hand of $24.2 million, total liquidity of $124 million, and a leverage ratio of 2.18 times. As previously announced, we successfully completed refinancing of our term loan and revolving credit facilities for $400 million and $100 million, respectively. The new credit agreement strengthens our financial position and provides increased flexibility by lowering our annual amortization and extending the maturity date. It is also expected to result in cash interest savings of over $3 million during the first 12 months. As of June 30, 2021, net debt totaled $361.4 million. Our first quarterly amortization payment of $1 million is due on September 30th, 2021. Now turning to guidance. We affirmed our 2021 revenue and adjusted EBITDA guidance in today's press release given our continued strong recovery in both SilverSneakers and Prime. As we've mentioned throughout the pandemic, we anticipate our second half total gross margin percentage will decline relative to the first half of 2021 as the number of in-person SilverSneakers and Prime visits increase. We also anticipate a slightly elevated level of operating expenses compared to the first half of 2021, driven by investments in omnichannel marketing, SilverSneakers Connect, and data capabilities related to the engagement platform. all of which are investments intended to drive growth in 2022. Together, these items are expected to reduce our adjusted EBITDA in the back half of 2021, which is why we are maintaining adjusted EBITDA guidance at the top end of $155 million. Finally, our 2021 guidance does not reflect any impact for our ownership and share care. Today, we own approximately 11.1 million shares of ShareCare's common stock. From an accounting standpoint, beginning in July of 2021, we record these shares at their fair value in accordance with U.S. GAAP and recognize any changes in fair value in net income as unrealized gains or losses. There can be no assurance as to what value our shares will have in the future or when we will sell our shares. I'll now turn the call back over to the operator to open the call for Q&A.

Thank you. At this time, I would like to remind everyone, in order to ask a question, press star, then the number one on your telephone keypad. Again, that is star, then the number one on your telephone keypad. We'll pause for just a moment to compile the Q&A roster. We have our first question coming from the line of Steve Halpern with Contour. Your line is open.