Blood Flow Restriction May Amplify HIIT Gains—With Caveats
Blood flow restriction may amplify interval-training gains in trained athletes, but cuff width, individual pressure, and safety gaps change the prescription.
Sprint interval training can raise fitness, but a 2025 umbrella review found no proven edge over steady cardio—and much of the evidence rates low quality.
VO2max and Telomeres: Why Fitness May Have a Threshold
A 2025 meta-analysis links higher VO2max with longer telomeres, but the benefit may plateau near the 70th percentile. What the evidence can and cannot say.
Wearables in Cardiac Rehab Work—If You Keep Wearing Them
Wearable devices can raise step counts in cardiac rehabilitation, but adherence, coaching, and post-program decay decide whether a tracker changes behavior for good.