Lie on back with arms extended toward the ceiling in-line with shoulders and legs bent to 90 degrees (knees above hips).

BYU professor investigates what exercise does to muscles By Lillian Ercanbrack, February 20, 2025 04:21 PM Email. Link to X (formally Twitter) User. BYU ...

It’s also important to quickly supply post-workout muscles with nutrients to rebuild. Research suggests this window of opportunity is longer than once thought — up to 24 hours after exercise.