In competitive sport, the conversation around sleep often stops at “getting more rest.” But what happens when poor sleep isn’t a surface-level issue, but a deeply embedded driver of emotional instability, injury risk, and delayed recovery? This qualitative study by Longo et al. [2025] explored how competitive athletes in Canada experience and cope with sleep disturbances, uncovering that these issues extend far beyond feeling tired.

What the Study Found

Thirty-one competitive athletes [ages 19–34] were interviewed about their experiences with sleep and injury. The majority had dealt with sleep issues for over six months and at least one injury in the past year. Four central themes emerged. First, athletes described disrupted sleep architecture, including difficulty falling asleep, frequent night waking, and pre-sleep anxiety often tied to racing thoughts, physical tension, and late-night screen exposure. Second, the emotional burden of sleep loss was profound. Many athletes reported heightened anxiety, irritability, shame, and emotional detachment when performance declined. Third, athletes perceived a direct link between poor sleep and injury susceptibility, describing increased muscle tension, slower recovery, and recurring injuries in the same anatomical regions. Finally, systemic barriers—a lack of sleep education, cultural stigma around rest, and dismissal by coaches—compounded these issues, leaving many to self-manage through maladaptive strategies like excessive caffeine use, irregular naps, and avoidance.

The data were striking. Twenty-six of the 31 athletes [84%] had experienced sleep disturbances for more than six months. Athletes not only recognized sleep as a factor in their injuries, but described how disrupted rest shaped their psychological state before, during, and after return-to-play. Emotional strain and performance anxiety often created a feedback loop: poor sleep increased vulnerability, injury heightened anxiety, and anxiety made sleep worse.

Why This Matters

Sleep is often positioned as a passive recovery tool, but this study frames it as an active injury-modifying variable. Poor sleep alters coordination, slows reaction time, and disrupts pain regulation and tissue repair. It also shapes emotional resilience and identity. When athletes see poor sleep as “normal,” they delay help-seeking, rely on self-management, and unintentionally deepen their risk profile.

Perhaps most importantly, the findings spotlight the role of sports culture. When toughness is valued above recovery, athletes internalize fatigue as weakness. This makes early intervention nearly impossible. Even when symptoms appear—irritability, daytime fatigue, inconsistent performance—structural support is often absent. That cultural gap allows a preventable problem to escalate into chronic injury patterns.

How We Apply This at VeloU

Within throwing development and strength programming, sleep is treated as a load-bearing factor, not a side note. Just as we track mechanical efficiency, tissue capacity, and workload, we account for sleep quality when evaluating injury risk and recovery potential. That means educating athletes on sleep architecture, recognizing emotional and physiological red flags, and building recovery systems that reduce—not add to—cognitive load.

We’ve found that structured sleep interventions don’t need to be complicated: blackout environments, consistent routines, and pre-sleep regulation strategies can have measurable effects on both soreness and mechanical output. When sleep is optimized, athletes arrive in better physiological condition, tolerate higher workloads more efficiently, and demonstrate improved throwing mechanics under fatigue.

Longo et al. highlight a critical gap in sport: while we invest heavily in strength and skill development, we underinvest in rest. Addressing that imbalance could meaningfully change both injury timelines and performance trajectories.

Reference:

Longo, V., Gottschlich, D., Turner, S., & Qiu, H. [2025]. A qualitative analysis of the role of sleep disorders in sports injuries among competitive athletes in Canada. International Journal of Sport Studies for Health, 8(2), 19–28. http://dx.doi.org/10.61838/kman.intjssh.8.2.3