Sports medicine specialists have long touted the importance of strengthening muscles around a weak joint. For instance, stronger quadriceps help stabilize a weak knee-joint. Developed strength on the muscles surrounding the shoulder joint, lowers its risk of being re-injured or compromised by high intensity movement.
Being aerobically fit is one aspect of developing fitness as an endurance athlete. A strong musculature provides the body with better posture (gait) both during activity, and when resting. Developing core strength has been central to keeping athletes strong enough for sustained physical activity. Weakened muscles due to under-use can lead to muscle imbalance, which exacerbates the lop-sided condition.
Include strengthening exercises at least twice a weak. Swimmers could incorporate pedal/pool-buoy, and sprint workouts. Runners could run up hills, or off-road. Working with weights can help runners balance out their relatively weaker upper-bodies, which enhances their torso posture (avoiding the collapse of their core). Riders can increase the gear-resistance and do time trials, or interval sets at lower cadence. Core strength allows them to stay in the 'aero-position' for longer. Adding resistance encourages the body to adapt to the new workload by becoming stronger, which recruits more power during races. Challenge yourself with at least one speed or strength workout for each discipline each week.
Leadership Lessons: How often do you strengthen your relationships? When did you last audit yourself for weaknesses? How do you address your shortcomings? How critical are you with your prevailing compromised condition and situation?